CN109860935A - A kind of lithium-ion-power cell - Google Patents
A kind of lithium-ion-power cell Download PDFInfo
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- CN109860935A CN109860935A CN201710503824.4A CN201710503824A CN109860935A CN 109860935 A CN109860935 A CN 109860935A CN 201710503824 A CN201710503824 A CN 201710503824A CN 109860935 A CN109860935 A CN 109860935A
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- thermally conductive
- collection body
- heat collection
- conductive heat
- negative electrode
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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
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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
- 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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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；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 being provided with thermally conductive heat collection body in positive plate and negative electrode tab, thermally conductive heat collection body is the positive part of plus plate current-collecting body and negative current collector or/and the collector of the local uncoated active material layer of reverse side, at least more than two panels thermally conductive heat collection body builds up heat sink runner, heat sink runner overlaps or is connected with fluid course component, show out the import of runner greatly from metal shell, the opposite face in big face exposes the outlet of runner.The present invention can effectively solve the problems such as battery temperature is too high or too low, reach temperature control and improve battery life 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, pollution-free, memory-less effect etc. with specific energy
Advantage becomes the optimal candidate of new-energy automobile dynamical system.But lithium ion battery is very sensitive to temperature, in suitable temperature
Battery pack high-efficiency discharge and could keep good performance in range.High temperature can make lithium ion battery aging speed become faster, is hot
Resistance increase becomes faster, cycle-index tails off, service life shortens, or even the problems such as initiation battery thermal runaway；Low temperature can be electrolysed
The conductivity of 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, by electrolyte by energy
It is transmitted to battery case, then outside batteries etc. are transferred to by battery case.Make although the prior art can play certain heat dissipation
With, but heat still cannot be exported directly to outside batteries from main heating position pole piece, heat conduction and heat radiation effect is poor.Cause
This, 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, reach temperature control and improve battery life 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 is equipped with the Positive Poles being electrically connected with the positive pole ear and institute
State the negative pole of negative lug electrical connection；The negative electrode tab includes negative current collector and coated in negative on negative current collector
Pole 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, feature
It is to be provided with thermally conductive heat collection body in positive plate and negative electrode tab, the thermally conductive heat collection body is plus plate current-collecting body and negative current collector
Positive part or/and the local uncoated active material layer of reverse side collector, thermally conductive heat collection body, which is built up, at least more than two panels leads
The heat sink runner of hot thermal-arrest, the thermal energy that heat sink runner constitutes battery core pass in and out heat sink runner, and heat sink runner overlaps or be connected with fluid
Flow path features, the import of runner is showed out greatly from metal shell, and the opposite face in the big face of metal shell exposes the outlet of runner.This
Sample, thermally conductive heat collection body are integrally formed with positive plate and negative electrode tab respectively, simplify process, improve production efficiency, by thermally conductive collection
Hot body overlaps to form heat sink runner in upper and lower the same area, and heat sink runner is heated or cooled by fluid course component, i.e.,
Achievable internal temperature of battery is raised and lowered, and maintains battery in suitable operating temperature always, improves battery working efficiency, prolong
Long battery life eliminates safe hidden trouble.Fluid course shows out greatly the import of runner, the phase in the big face of metal shell from metal shell
The outlet of runner is exposed on opposite, is conducive to battery assembly, is reduced space hold.
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 thermally conductive heat collection body bending and positive plate and the angle of negative electrode tab are respectively 0-90 °.In this way, on thermally conductive heat collection body
Heat would be even more beneficial to concentrate on heat sink runner, be conducive to cooling or heat.
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 thermally conductive heat collection body protrudes from positive plate and negative electrode tab respectively.In this way, be conducive to overlap between thermally conductive heat collection body,
Be conducive to the importing or/and export of heat.
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 heat is caused to exist
Inside battery gathers, and causes dangerous；The heat in electrolyte can also rapidly import pole piece by thermally conductive heat collection body simultaneously, keep away
It is too low to exempt from battery temperature.
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 and negative electrode tab respectively.In this way, being conducive to reduce battery weight, electricity is improved
Pond energy density.
The thermally conductive heat collection body is connected position with wide with positive plate and negative electrode tab respectively.In this way, not increasing battery weight
In the case where, thermally conductive heat collection body and pole piece connecting portion contact area are maximum, and heat-conducting effect is best.
The collector of showing up is respectively parallel to anode active material layer and anode active material layer.In this way, production technology
It 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 respectively ipsilateral covering anode active material layer middle part and ipsilateral covering negative electrode active material
Layer middle part.
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 fluid course component flow channel inner wall has at insulating layer or/and fluid course docking and has insulating layer.In this way, can be with
It avoids causing short circuit because of fluid course component, eliminate safe hidden trouble.
The fluid course member outer surface has insulating layer.This way it is possible to avoid short circuit is caused because of fluid course component,
It eliminates safe hidden trouble.
The fluid course component is fluid course pipe fitting or air conditioner coolant pipe fitting or the heat being made of shell and liquid-sucking core
Pipe.In this way, the effect being heated or cooled is relatively good.
There is fin in the fluid course component.In this way, being more advantageous to fluid course pieces conduct heat.
(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 schematic diagram of the section structure of battery core in Fig. 1；
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 ear
The Positive Poles of electrical connection, the negative pole being electrically connected with the negative lug；The negative electrode tab include negative current collector and
Coated in the anode active material layer on negative current collector；Positive plate includes plus plate current-collecting body and coated on plus plate current-collecting body
Anode active material layer, it is characterised in that thermally conductive heat collection body is provided on positive plate and negative electrode tab, the thermally conductive heat collection body is
The collector of the local uncoated active material layer in the positive part or/and reverse side of plus plate current-collecting body and negative current collector, at least two
More than piece thermally conductive heat collection body builds up the heat sink runner of thermally conductive thermal-arrest, and the thermal energy that heat sink runner constitutes battery core passes in and out heat sink runner, heat
Confluence road overlapping is connected with fluid course component, shows out the import of runner, the phase in the big face of metal shell greatly from metal shell
The outlet of opposite exposing runner.
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 negative pole end
The intermediate of son 4 enters, and comes out from 3 one end of positive terminal, is reserved with fluid course in the centre of positive terminal 3 and negative terminal 4
The disengaging pore of component 6, another program fluid course component 6 can also enter from positive terminal 3, come out from negative terminal 4,
There are 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 10
The side of end face enters, and comes out from the side of 10 end face of top cover, there is heat-exchange device 8 and fluid course portion outside battery case
Part 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
It is arranged on heat sink runner 11, 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 respectively provided with
In the port, there are 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 to constitute a complete energy with fluid course component 6 outside battery case and follows
Ring.
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 be arranged on heat sink runner 11, fluid course component 6 from the bottom surface of metal shell 9 reserve port pass in and out, import and
Outlet is arranged at the port, has heat-exchange device 8 and fluid course component 6 to constitute a complete energy outside battery case
Amount 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 fluid course component 6 is arranged in heat
Converge on road 11, fluid course component 6 is come in from the pore that the centre of negative terminal 4 is reserved, in positive terminal and negative pole end
The centre of son is reserved with the disengaging pore of fluid course component 6；(thermally conductive heat collection body 5 connects into whole with positive plate in another program
Body, case fluid course component 6 reserve the disengaging pore disengaging of fluid flow path features 6 from positive terminal 3), outside battery case
There are 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-back
The reserved port disengaging in the side of body 9, has heat-exchange device 8 and the composition of fluid course component 6 one complete outside battery case
Whole 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 stream
The port that road component 6 is reserved from the side of metal shell 9 passes in and out, and has heat-exchange device 8 and fluid course outside battery case
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, and the entrance of fluid course component 6 is set
It sets in the side of metal shell 9, the different location of the ipsilateral of metal shell 9 is arranged in the outlet of fluid course component 6, in electricity
There are heat-exchange device 8 and fluid course component 6 to constitute a complete energy circulation outside the shell of pond.
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 hair
The improvement of technical solution disclosed in bright claims and specification is considered to be without departing from claims of the present invention
And range disclosed in specification.
Claims (9)
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
In being provided with thermally conductive heat collection body on positive plate and negative electrode tab, the thermally conductive heat collection body is plus plate current-collecting body and negative current collector
The collector of the local uncoated active material layer of positive part or/and reverse side, thermally conductive heat collection body is built up thermally conductive at least more than two panels
The heat sink runner of thermal-arrest, the thermal energy that heat sink runner constitutes battery core pass in and out heat sink runner, and heat sink runner overlaps or be connected with fluid stream
Road component, the import of runner is showed out greatly from metal shell, and the opposite face in the big face of metal shell exposes the outlet of runner.
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 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 thermally conductive heat collection body bending and the angle of positive plate and negative electrode tab are respectively 0-90 °；Or the heat sink runner
It is integrally fixed for the unidirectional bending of thermally conductive heat collection body described in multilayer；Or the heat sink runner is thermally conductive heat collection body described in multilayer
Forward and reverse bending is integrally fixed；Or the thermally conductive heat collection body of part multilayer bending is unidirectional bending；Or part multilayer
The thermally conductive heat collection body of bending is positive, inverse bending；Or the temperature sensor is film temperature sensor.
4. 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 and negative electrode tab respectively；Or
The thermally conductive heat collection body of person is depressed in positive plate and negative electrode tab respectively；Or thermally conductive heat collection body is connected with positive plate and negative electrode tab portion respectively
Position is the same as wide；Or collector of showing up is respectively parallel to anode active material layer and anode active material layer；Or collector of showing up
For complete or collected works' fluid；Or collector of showing up is respectively in the middle part of ipsilateral covering anode active material layer and in anode active material layer
Portion；Or the lamination is composite laminate or packed or shred lamination；Or the positive electrode active materials are LiFePO4, cobalt acid
Lithium, LiMn2O4 or ternary material；Or the negative electrode active material is carbon negative pole material, tin base cathode material, the gold of transition containing lithium
Belong to nitride negative electrode material or alloy type negative material.
5. lithium-ion-power cell as claimed in claim 4, it is characterised in that the thermally conductive heat collection body of protrusion protrudes into battery
In electrolyte in shell.
6. lithium-ion-power cell as claimed in claim 5, it is characterised in that electrolysis is heated or cooled in the electrolyte
Liquid heat exchanger.
7. lithium-ion-power cell as described in claim 1, it is characterised in that the fluid course component flow channel inner wall has absolutely
There is insulating layer at edge layer or/and fluid course docking；Or the fluid course member outer surface has insulating layer.
8. lithium-ion-power cell as described in claim 1, it is characterised in that the fluid course component is fluid course pipe
Part or air conditioner coolant pipe fitting or the heat pipe being made of shell and liquid-sucking core.
9. lithium-ion-power cell as described in claim 1, it is characterised in that have fin in the fluid course component.
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| CN201710503824.4A CN109860935A (en) | 2017-06-28 | 2017-06-28 | A kind of lithium-ion-power cell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114335919A (en) * | 2021-12-22 | 2022-04-12 | 江苏海基新能源股份有限公司 | Square metal shell lithium ion battery and assembly process thereof |
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| CN106684458A (en) * | 2017-01-22 | 2017-05-17 | 湖南立方新能源科技有限责任公司 | Lithium ion battery with improved low-temperature charging-discharging performance and preparation method thereof |
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| CN114335919A (en) * | 2021-12-22 | 2022-04-12 | 江苏海基新能源股份有限公司 | Square metal shell lithium ion battery and assembly process thereof |
| CN114335919B (en) * | 2021-12-22 | 2024-03-08 | 江苏海基新能源股份有限公司 | Square metal shell lithium ion battery and assembly process thereof |
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