CN110112497A - A kind of lithium-ion-power cell - Google Patents
A kind of lithium-ion-power cell Download PDFInfo
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- CN110112497A CN110112497A CN201710512016.4A CN201710512016A CN110112497A CN 110112497 A CN110112497 A CN 110112497A CN 201710512016 A CN201710512016 A CN 201710512016A CN 110112497 A CN110112497 A CN 110112497A
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- thermally conductive
- collection body
- heat collection
- positive
- heat sink
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/654—Means for temperature control structurally associated with the cells located inside the innermost case of the cells, e.g. mandrels, electrodes or electrolytes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Materials Engineering (AREA)
Abstract
The invention discloses a kind of lithium-ion-power cells, including battery core, metal shell, electrolyte and the top cover being fixedly connected on the metal shell；Battery core includes positive plate, negative electrode tab and diaphragm；Positive pole ear and negative lug are respectively equipped in positive plate and negative electrode tab；Top cover is equipped with Positive Poles and negative pole；Negative electrode tab includes negative current collector and anode active material layer；Positive plate includes plus plate current-collecting body and anode active material layer, it is characterized in that positive plate is provided with thermally conductive heat collection body, thermally conductive heat collection body is the positive part of plus plate current-collecting body or/and the collector of reverse side part uncoated positive active material layer, at least more than two panels thermally conductive heat collection body builds up heat sink runner, heat sink runner overlaps or is connected with conducting-heat elements, and heat sink runner and conducting-heat elements constitute thermally conductive heat sink flow channel component.The present invention can effectively solve the problems such as battery temperature is too high or too low, reach temperature control, improve battery life and improve production efficiency and other effects.
Description
(1) technical field
The present invention relates to a kind of lithium ion battery more particularly to a kind of lithium-ion-power cells.
(2) background technique
Traffic brings dual-pressure to energy crisis and environmental pollution, efficient, cleaning that there is an urgent need to Devoting Major Efforts To Developings and research,
The new-energy automobile of safety realizes energy-saving and emission-reduction.Lithium ion battery is due to high, the pollution-free, memory-less effect with specific energy
The advantages that optimal candidate as new-energy automobile dynamical system.But lithium ion battery is very sensitive to temperature, in suitable temperature
It spends battery pack ability high-efficiency discharge in range and keeps good performance.High temperature can make lithium ion battery aging speed become faster,
Thermal resistance increase becomes faster, cycle-index tails off, service life shortens, or even the problems such as initiation battery thermal runaway；Low temperature can make electricity
The conductivity for solving liquid reduces, and the ability decline of conductive activity ion, impedance increases, capacity decline.
The prior art or the riding position by changing battery core increase the purpose of heat dissipation to reach improvement fluid course；
Or by the improvement to battery case, such as case material is changed to by aluminium alloy by thermoelectric material and the compound system of aluminum material
It is standby, housing side is added into many places heat dissipation convex edge；Or electrode slice extension is extend into electrolyte, it will by electrolyte
Amount is transmitted to battery case, then is transferred to outside batteries etc. by battery case.Although the prior art can play certain heat dissipation
Effect, but heat still cannot be exported directly to outside batteries from main heating position pole piece, heat conduction and heat radiation effect is poor.
Therefore, studying a kind of Novel lithium ion power battery has been urgent need.
(3) summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of lithium-ion-power cell, it can effectively solve battery temperature
The problems such as too high or too low, reaches temperature control, improve battery life and improve production efficiency and other effects.
The technical solution of the present invention is as follows:
Lithium-ion-power cell, metal shell including battery core, for accommodating the battery core are injected into the metal shell
Interior electrolyte and the top cover being fixedly connected on the metal shell；The battery core includes positive plate, negative electrode tab and is interval in
Diaphragm between the positive plate and negative electrode tab, successively battery core is made in lamination or winding in order；The positive plate is equipped with anode
Tab；The negative electrode tab is equipped with negative lug；The top cover be equipped be electrically connected with the positive pole ear Positive Poles, and
The negative pole of the negative lug electrical connection；The negative electrode tab includes negative current collector and is coated on negative current collector
Anode active material layer；Positive plate includes plus plate current-collecting body and coated in the anode active material layer on plus plate current-collecting body,
It is characterized in that positive plate is provided with thermally conductive heat collection body, the thermally conductive heat collection body is positive part or/and the reverse side of plus plate current-collecting body
The collector of local uncoated positive active material layer, thermally conductive heat collection body builds up in the same area lead up and down at least more than two panels
The heat sink runner of hot thermal-arrest constitutes the thermal energy disengaging heat sink runner of battery core, and heat sink runner overlaps or is connected with conducting-heat elements, heat
Converge road and the thermally conductive heat sink flow channel component of conducting-heat elements composition.In this way, thermally conductive heat collection body and positive plate are integrally formed, simplify
Process improves production efficiency, thermally conductive heat collection body is overlapped to form heat sink runner in upper and lower the same area, and pass through heat-conducting part
Heat sink runner is heated or cooled in part, and internal temperature of battery can be realized and be raised and lowered, and maintains battery in suitable work always
Make temperature, improve battery working efficiency, extends battery life, eliminate safe hidden trouble.
The heat sink runner is thermally conductive heat collection body by being welded and fixed to be formed.In this way, by welding by thermally conductive collection
Hot body overlapping fixation forms heat sink runner, is not only firmly combined, but also advantageously reduce battery quality, it is close to improve the energy content of battery
Degree.
It is described to be welded as supersonic welding, Laser Welding or friction welding (FW).
The heat sink runner is that thermally conductive heat collection body is formed by the way that bolt or riveting are fixed.In this way, by bolt or riveting
Mode overlaps fixed thermally conductive heat collection body and forms heat sink runner, will not damage to diaphragm etc..
The heat sink runner is that thermally conductive heat collection body bending described in multilayer is integrally fixed.In this way, the heat on thermally conductive heat collection body
Amount would be even more beneficial to concentrate on heat sink runner, is conducive to cooling or heats.
The angle of the thermally conductive heat collection body bending and positive plate is 0-90 °.In this way, the heat on thermally conductive heat collection body will more have
Conducive to heat sink runner is concentrated on, is conducive to cooling or heats.
The heat sink runner is that the thermally conductive unidirectional bending of heat collection body described in multilayer is integrally fixed.In this way, heat sink runner was both pacified
It fills more convenient, and is conducive to cooling or heats.
The heat sink runner is that the thermally conductive forward and reverse bending of heat collection body described in multilayer is integrally fixed.In this way, thermally conductive heat collection body
Between contact, heat sink runner is conducive to cooling or heats.
The heat sink runner is that the thermally conductive heat collection body of part multilayer bending is fixed with the straight thermally conductive heat collection body
Integrally.In this way, contacting between thermally conductive heat collection body, heat sink runner is conducive to cool down.
The thermally conductive heat collection body of part multilayer bending is unidirectional bending.In this way, process is fairly simple.
The thermally conductive heat collection body of part multilayer bending is positive, inverse bending.In this way, being contacted between thermally conductive heat collection body, heat
Confluence road is conducive to cooling or heats.
The perforation of some or all of described thermally conductive heat collection body or 3D perforation or 3D are concave-convex.In this way, the surface of thermally conductive heat collection body
Product increases, and is more advantageous to cooling or heating.
Perforation is accompanied between the thermally conductive heat collection body, netted, 3D perforates, the thermally conductive heat-collecting part of 3D bumps.In this way, thermally conductive
The surface area of heat collection body increases, and is more advantageous to cooling or heating.
The perforation of bending is accompanied between the thermally conductive heat collection body, netted, 3D perforates, itself thermally conductive heat collection body of 3D bumps.
In this way, the cooling of thermally conductive heat collection body or heating effect are good.
There are insulating layer, thermal insulation layer or insulating film in the thermally conductive heat collection body surface.This way it is possible to avoid thermally conductive heat collection body
Short circuit occurs for place, eliminates safe hidden trouble.
The heat sink water passage surface has insulating layer or insulating film.This way it is possible to avoid short circuit occurs at heat sink runner, eliminate
Security risk.
The heat sink runner is located at at least side of the ipsilateral of the positive pole ear, opposite side and sides adjacent.In this way, can be with
According to demand, the position of heat sink runner is set.
The heat sink runner has one or two or three in the side of positive pole ear.In this way, can be arranged according to demand
The number of heat sink runner, preferably controls battery temperature.
The thermally conductive heat collection body protrudes from positive plate.In this way, being conducive to overlap between thermally conductive heat collection body, be conducive to heat
It imports or/and exports.
The thermally conductive heat collection body of protrusion protrudes into the electrolyte in battery case.In this way, the heat of thermally conductive heat collection body can
It importing in electrolyte, heat reaches rapidly battery surface through electrolyte, it avoids because diaphragm heat transfer property is bad, and lead to heat
Gather in inside battery, causes dangerous；The heat in electrolyte can also rapidly import pole by thermally conductive heat collection body simultaneously
Piece avoids battery temperature too low.
Electrolyte heat exchanger is heated or cooled in the electrolyte.In this way, by heat-exchange device to electrolyte
It is heated or cooled, electrolyte is again heated or cooled thermally conductive heat collection body, and battery temperature is made to maintain suitable model
In enclosing.
The thermally conductive heat collection body is depressed in positive plate.In this way, being conducive to reduce battery weight, battery energy density is improved.
The thermally conductive heat collection body is connected position with positive plate with wide.In this way, in the case where not increasing battery weight, it is thermally conductive
Heat collection body and positive plate connecting portion contact area are maximum, and heat-conducting effect is best.
The collector of showing up is parallel to anode active material layer.In this way, production technology is convenient, high production efficiency.
The collector of showing up is complete or collected works' fluid.In this way, good heat conduction effect.
The collector of showing up is in the middle part of ipsilateral covering anode active material layer.
Temperature sensor is provided on the heat sink runner.In this way, the temperature on heat sink runner can be monitored accurately, reach control
The purpose of heating confluence channel temp.
The temperature sensor is film temperature sensor.In this way, not only can accurately monitor temperature, but also small etc. with weight
The energy density of battery can be improved in feature.
The lamination is composite laminate or packed or shred lamination.
The positive electrode active materials are LiFePO4, cobalt acid lithium, LiMn2O4 or ternary material.
The negative electrode active material is carbon negative pole material, tin base cathode material, lithium-containing transition metal nitride negative material
Or alloy type negative material.
The conducting-heat elements are sheet metal or graphite plate or heat pipe or fluid pipe fitting.In this way, conducting-heat elements good heat conduction effect.
(4) Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention 1；
Fig. 2 is the schematic diagram of cell structure in Fig. 1；
Fig. 3 is the diagrammatic cross-section of Fig. 2；
Fig. 4 is the schematic diagram of the section structure of battery core；
Fig. 5 is the structural schematic diagram of the embodiment of the present invention 5；
Fig. 6 is the structural schematic diagram of the embodiment of the present invention 6；
Fig. 7 is the structural schematic diagram of the embodiment of the present invention 7；
Fig. 8 is the structural schematic diagram of the embodiment of the present invention 8；
Fig. 9 is the structural schematic diagram of the embodiment of the present invention 9；
Figure 10 is the structural schematic diagram of the embodiment of the present invention 10
Figure 11 is the structural schematic diagram of the embodiment of the present invention 11；
Figure 12 is the structural schematic diagram of the embodiment of the present invention 12；
Figure 13 is the structural schematic diagram of the embodiment of the present invention 13.
(5) specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
The technical solution of the present invention is as follows: lithium-ion-power cell, including battery core, the metal-back for accommodating the battery core
Body, the top cover for being injected into the intracorporal electrolyte of the metal-back and being fixedly connected on the metal shell；The battery core includes
Positive plate, negative electrode tab and the diaphragm being interval between the positive plate and negative electrode tab, successively electricity is made in lamination or winding in order
Core；The positive plate is equipped with positive pole ear；The negative electrode tab is equipped with negative lug；The top cover is equipped with and the positive pole
The Positive Poles of ear electrical connection, the negative pole being electrically connected with the negative lug；The negative electrode tab includes negative current collector
With the anode active material layer being coated on negative current collector；Positive plate include plus plate current-collecting body and be coated in plus plate current-collecting body
On anode active material layer, it is characterised in that positive plate is provided with thermally conductive heat collection body, and the thermally conductive heat collection body is anode collection
The positive part of body or/and the collector of reverse side part uncoated positive active material layer, thermally conductive heat collection body at least more than two panels
The heat sink runner for building up thermally conductive thermal-arrest in the same area up and down constitutes the thermal energy disengaging heat sink runner of battery core, heat sink runner overlapping
Or conducting-heat elements are connected with, heat sink runner and conducting-heat elements constitute thermally conductive heat sink flow channel component.
In each attached drawing, 1 is positive pole ear, and 2 be negative lug, and 3 be positive terminal, and 4 be negative terminal, and 5 be thermally conductive thermal-arrest
Body, 6 be fluid course component, and 7 be battery core, and 8 be heat-exchange device, and 9 be metal shell, and 10 top covers, 11 be heat sink runner.
As shown in figure 1, positive and negative tab setting is provided with thermally conductive heat collection body 5 on the same end, positive/negative plate, and is arranged in pole
The positive terminal 3 being arranged on the opposite end of ear, the i.e. bottom end of metal shell 9, positive pole ear 1 and top cover 10 is by being electrically connected in succession
It connects, the negative terminal 4 being arranged in negative lug 1 and top cover 10 is by being electrically connected connection.Fig. 2 is the structural representation of battery core in Fig. 1
Figure, Fig. 3 are the diagrammatic cross-section of Fig. 2, and thermally conductive heat collection body 5 is connect integral with collector in Fig. 2, Fig. 3.It is multiple thermally conductive in Fig. 4
Heat collection body 5 links together, and forms the heat sink runner 11 of thermally conductive thermal-arrest.
As shown in figure 5, positive and negative tab setting is in the same end, thermally conductive heat collection body 5 is arranged between positive/negative plate, multiple thermally conductive
Heat collection body 5 is overlapped into heat sink runner 11, and fluid course component 6 is arranged on heat sink runner 11, and fluid course component 6 is from cathode
The intermediate of terminal 4 enters, and comes out from 3 one end of positive terminal, is reserved with fluid stream in the centre of positive terminal 3 and negative terminal 4
The disengaging pore of road component 6, another program fluid course component 6 can also enter from positive terminal 3, go out from negative terminal 4
Come, there is heat-exchange device 8 and fluid course component 6 to constitute a complete energy circulation outside battery case 9.
As shown in fig. 6, positive and negative tab setting is in the same end, thermally conductive heat collection body 5 is arranged between positive/negative plate, multiple thermally conductive
Heat collection body 5 is overlapped into heat sink runner 11, and fluid course component 6 is arranged on heat sink runner 11, and fluid course component 6 is from top cover
The side of 10 end faces enters, and comes out from the side of 10 end face of top cover, there is heat-exchange device 8 and fluid stream outside battery case
Road component 6 constitutes a complete energy circulation.
As shown in fig. 7, positive and negative tab setting is in the same end, thermally conductive heat collection body 5 is arranged between positive/negative plate, can be set
It on positive plate, also can be set in negative electrode tab, multiple thermally conductive heat collection bodies 5 are overlapped into heat sink runner 11, fluid course component
6 are arranged on heat sink runner 11, and the port that fluid course component 6 is reserved from 10 end face of top cover passes in and out, and inlet and outlet is all provided with
It sets in the port, there is heat-exchange device 8 and fluid course component 6 to constitute a complete energy circulation outside battery case.
As shown in figure 8, positive and negative tab is arranged in the same end, the opposite end of positive and negative tab is arranged in thermally conductive heat collection body 5, can be with
It is arranged on positive plate, also can be set in negative electrode tab, multiple thermally conductive heat collection bodies 5 are overlapped into heat sink runner 11, fluid course
Component 6 is arranged on heat sink runner 11, and fluid course component 6 enters from the bottom surface side of metal shell 9, from 9 bottom of metal shell
The other side in face comes out, and has heat-exchange device 8 and fluid course component 6 to constitute a complete energy outside battery case
Circulation.
As shown in figure 9, positive and negative tab is arranged in the same end, the opposite end of positive and negative tab is arranged in thermally conductive heat collection body 5, can be with
It is arranged on positive plate, also can be set in negative electrode tab, multiple thermally conductive heat collection bodies 5 are overlapped into heat sink runner 11, fluid course
Component 6 is arranged on heat sink runner 11, and the port that fluid course component 6 is reserved from the bottom surface of metal shell 9 passes in and out, import
It is arranged at the port with outlet, has heat-exchange device 8 and fluid course component 6 to constitute one completely outside battery case
Energy circulation.
As shown in Figure 10, positive and negative tab setting is in the same end, and thermally conductive heat collection body 5 is arranged between positive/negative plate, thermally conductive collection
Hot body 5 connect integral with negative electrode tab, and multiple thermally conductive heat collection bodies 5 are overlapped into heat sink runner 11, and the setting of fluid course component 6 exists
On heat sink runner 11, fluid course component 6 is come in from the pore that the centre of negative terminal 4 is reserved, in positive terminal and cathode
The centre of terminal is reserved with the disengaging pore of fluid course component 6；(thermally conductive heat collection body 5 is connected into positive plate in another program
Whole, case fluid course component 6 reserves the disengaging pore disengaging of fluid flow path features 6 from positive terminal 3), outside battery case
Face has heat-exchange device 8 and fluid course component 6 to constitute a complete energy circulation.
As shown in figure 11, positive and negative tab is arranged in the same end, and the side of battery core 7 is arranged in thermally conductive heat collection body 5, multiple thermally conductive
Heat collection body 5 is overlapped into heat sink runner 11, and fluid course component 6 is arranged on heat sink runner 11, and fluid course component 6 is from metal
The reserved port disengaging in the side of shell 9, has heat-exchange device 8 and fluid course component 6 to constitute one outside battery case
Complete energy circulation.
As shown in figure 12, positive and negative tab is arranged in the same end, and the side of battery core 7, and indent is arranged in thermally conductive heat collection body 5
With pole piece, multiple thermally conductive heat collection bodies 5 are overlapped into heat sink runner 11, and fluid course component 6 is arranged on heat sink runner 11, fluid
The port that flow path features 6 are reserved from the side of metal shell 9 passes in and out, and has heat-exchange device 8 and fluid stream outside battery case
Road component 6 constitutes a complete energy circulation.
As shown in figure 13, positive and negative tab is arranged in the same end, and the side of battery core 7 is arranged in thermally conductive heat collection body 5, multiple thermally conductive
Heat collection body 5 is overlapped into heat sink runner 11, and fluid course component 6 is arranged on heat sink runner 11, the entrance of fluid course component 6
The side of metal shell 9 is set, the different location of the ipsilateral of metal shell 9 is arranged in the outlet of fluid course component 6,
There are heat-exchange device 8 and fluid course component 6 to constitute a complete energy circulation outside battery case.
Above content is enumerating for specific embodiments of the present invention, for the equipment and structure of wherein not detailed description, is answered
When being interpreted as that the existing common apparatus in this field and universal method is taken to be practiced.
The above embodiment of the present invention is only to illustrate that technical solution of the present invention is used simultaneously, only the column of technical solution of the present invention
It lifts, the technical solution and its protection scope being not intended to restrict the invention.Using equivalent technologies mean, equivalent apparatus etc. to this
The improvement of technical solution disclosed in invention claims and specification is considered to be without departing from the claims in the present invention
Range disclosed in book and specification.
Claims (8)
1. lithium-ion-power cell, metal shell including battery core, for accommodating the battery core is injected into the metal shell
Electrolyte and the top cover that is fixedly connected on the metal shell；The battery core includes positive plate, negative electrode tab and is interval in institute
The diaphragm between positive plate and negative electrode tab is stated, successively battery core is made in lamination or winding in order；The positive plate is equipped with positive pole
Ear；The negative electrode tab is equipped with negative lug；The top cover be equipped be electrically connected with the positive pole ear Positive Poles, with it is described
The negative pole of negative lug electrical connection；The negative electrode tab includes negative current collector and coated in the cathode on negative current collector
Active material layer；Positive plate includes plus plate current-collecting body and coated in the anode active material layer on plus plate current-collecting body, and feature exists
Positive plate is provided with thermally conductive heat collection body, the positive part or/and reverse side part that the thermally conductive heat collection body is plus plate current-collecting body are not
The collector for coating anode active material layer, thermally conductive heat collection body builds up thermally conductive thermal-arrest in the same area up and down at least more than two panels
Heat sink runner constitutes the thermal energy disengaging heat sink runner of battery core, and heat sink runner overlaps or is connected with conducting-heat elements, heat sink runner with lead
Thermal part constitutes thermally conductive heat sink flow channel component.
2. lithium-ion-power cell as described in claim 1, it is characterised in that the heat sink runner is that thermally conductive heat collection body passes through
It is welded and fixed to be formed；Or the heat sink runner is that thermally conductive heat collection body is formed by the way that bolt or riveting are fixed；Or the heat sink
Runner is that thermally conductive heat collection body bending described in multilayer is integrally fixed；Or the heat sink runner is that the described of part multilayer bending is led
Hot heat collection body is integrally fixed with the straight thermally conductive heat collection body；Or the heat sink water passage surface has insulating layer or insulation
Film；Or the heat sink runner is located at at least side of the ipsilateral of the positive pole ear, opposite side and sides adjacent；Or the heat
There are one or two or three in confluence road in the side of positive pole ear；Or temperature sensor is provided on the heat sink runner.
3. lithium-ion-power cell as claimed in claim 2, it is characterised in that described to be welded as supersonic welding, Laser Welding or rub
Wipe weldering；Or the angle of the thermally conductive heat collection body bending and positive plate is 0-90 °；Or the heat sink runner is to lead described in multilayer
The hot unidirectional bending of heat collection body is integrally fixed；Or the heat sink runner is that the thermally conductive forward and reverse bending of heat collection body described in multilayer is solid
It is fixed integral；Or the thermally conductive heat collection body of part multilayer bending is unidirectional bending；Or the described of part multilayer bending is led
Hot heat collection body is positive, inverse bending；Or the temperature sensor is film temperature sensor.
4. lithium-ion-power cell as claimed in claim 3, it is characterised in that the temperature sensor is film temperature sensing
Device.
5. lithium-ion-power cell as described in claim 1, it is characterised in that some or all of thermally conductive heat collection body perforation or
3D perforation or 3D are concave-convex；Or accompanied between thermally conductive heat collection body perforation, netted, 3D perforation, 3D bumps thermally conductive heat-collecting part；Or
The perforation of bending is accompanied between the thermally conductive heat collection body of person, netted, 3D perforates, itself thermally conductive heat collection body of 3D bumps；Or thermally conductive collection
There are insulating layer, thermal insulation layer or insulating film in hot body surface face；Or thermally conductive heat collection body protrudes from positive plate；Or thermally conductive heat collection body
It is depressed in positive plate；Or thermally conductive heat collection body is connected position with positive plate with wide；Or collector of showing up is parallel to positive-active
Material layer；Or collector of showing up is complete or collected works' fluid；Or collector of showing up is in the middle part of ipsilateral covering anode active material layer；Or
Lamination described in person is composite laminate or packed or shred lamination；Or the positive electrode active materials are LiFePO4, cobalt acid lithium, manganese
Sour lithium or ternary material；Or the negative electrode active material is carbon negative pole material, tin base cathode material, lithium-containing transition metal nitridation
Object negative electrode material or alloy type negative material.
6. lithium-ion-power cell as claimed in claim 5, it is characterised in that the thermally conductive heat collection body of protrusion protrudes into battery
In electrolyte in shell.
7. lithium-ion-power cell as claimed in claim 6, it is characterised in that electrolysis is heated or cooled in the electrolyte
Liquid heat exchanger.
8. lithium-ion-power cell as described in claim 1, it is characterised in that the conducting-heat elements are sheet metal or graphite plate
Or heat pipe or fluid pipe fitting.
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| CN201710512016.4A CN110112497A (en) | 2017-06-28 | 2017-06-28 | A kind of lithium-ion-power cell |
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| CN201710512016.4A CN110112497A (en) | 2017-06-28 | 2017-06-28 | A kind of lithium-ion-power cell |
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Effective date of registration: 20210121 Address after: Room 702, superstar entrepreneurial base, No.8 Lujing Road, Changsha high tech Development Zone, Changsha City, Hunan Province, 410205 Applicant after: Changsha Juneng new energy Co.,Ltd. Address before: Room 706, superstar entrepreneurial base, No.8 Lujing Road, high tech Development Zone, Changsha City, Hunan Province, 410205 Applicant before: HUNAN MELSEN CAR POWER Co.,Ltd. |
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