CN109904554A - A kind of lithium-ion-power cell - Google Patents
A kind of lithium-ion-power cell Download PDFInfo
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- CN109904554A CN109904554A CN201710503656.9A CN201710503656A CN109904554A CN 109904554 A CN109904554 A CN 109904554A CN 201710503656 A CN201710503656 A CN 201710503656A CN 109904554 A CN109904554 A CN 109904554A
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- heat sink
- thermally conductive
- sink runner
- collection body
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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；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 negative electrode tab is provided with thermally conductive heat collection body, the thermally conductive heat collection body is the positive part of negative current collector or/and the collector of reverse side part uncoated negative electrode active material layer, at least more than two panels thermally conductive heat collection body builds up heat sink runner, heat sink runner protrudes into the intracorporal electrolyte more than needed of metal-back, and heat sink runner processing is at mesh or bumps at bilayer.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, 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, 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 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 that negative electrode tab is provided with thermally conductive heat collection body, the thermally conductive heat collection body is the positive part or/and reverse side part of negative current collector
The collector of uncoated negative electrode 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, constitute battery core thermal energy disengaging heat sink runner；The heat sink runner protrudes into the intracorporal electrolyte more than needed of metal-back
In, heat sink runner processing is at mesh or bumps at bilayer.In this way, thermally conductive heat collection body and negative electrode tab are integrally formed, process is simplified,
Production efficiency is improved, thermally conductive heat collection body is overlapped to form heat sink runner in upper and lower the same area, heat sink runner is protruded into metal
In the intracorporal electrolyte more than needed of shell, heat sink runner processing increases connecing for heat sink runner and electrolyte at mesh or concave-convex at bilayer
Contacting surface product, can make the heat on pole piece import electrolyte rapidly, and reach metal shell, avoid because the heating conduction of diaphragm is owed
It is good and cause heat inside battery assemble, cause safety accident.
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 negative electrode tab 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 heat sink runner is provided with thermal connection part.In this way, heat importing or export heat sink can be achieved by being thermally connected part
Runner, to control the temperature of battery within the scope of suitable.
The thermal connection part is cooling fin.It is led from battery in this way, the heat on heat sink runner can run through radiating piece
Out, battery temperature is reduced.
The thermal connection part is sheet metal.It is led from battery in this way, the heat on heat sink runner can run through sheet metal
Out, battery temperature is reduced.
The sheet metal is more sheet metals.In this way, the heat on heat sink runner can run through more sheet metals from battery
Export reduces battery temperature.
The sheet metal is identical as thermally conductive heat collection body material.In this way, be conducive to connect between thermally conductive heat collection body and sheet metal,
And be conducive to thermally conductive.
Between the thermally conductive heat collection body or surface is provided with fin.In this way, the heat on thermally conductive heat collection body can pass through fin
Quickly export, and then reduce the temperature of battery.
It is provided on the thermally conductive heat collection body heat sink.In this way, being conducive to maintain temperature equalization on thermally conductive heat collection body, electricity is kept
Pond temperature is in suitable range.
The heat sink runner is provided with heat-exchanging part.In this way, by heat-exchanging part, it can be by heat from heat sink runner
Export imports, and maintains battery temperature in suitable range.
The heat sink runner and the heat-exchanging part are integrally welded.In this way, being tied between heat sink runner and heat-exchanging part
It closes securely, and is not required to increase other components, be conducive to improve battery energy density.
The heat sink runner bolts with the heat-exchanging part, cementing or be riveted into one.In this way, heat sink runner and heat are handed over
It changes between component and is firmly combined, and diaphragm etc. will not be damaged.
The heat sink runner is connected on the metal shell, and the metal shell serves as radiator.In this way, metal shell
Radiator is served as, without increasing thermal component, improves battery energy density.
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 negative lug, 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 negative lug.In this way, can be arranged according to demand
The number of heat sink runner, preferably controls 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 connected position with negative electrode tab with wide.In this way, in the case where not increasing battery weight, it is thermally conductive
Heat collection body and negative electrode tab 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.
Temperature sensor is provided on the heat-exchanging part.In this way, the temperature on heat-exchanging part can be monitored accurately.
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.
(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 negative electrode tab is provided with thermally conductive heat collection body, and the thermally conductive heat collection body is negative current collector
The collector of positive part or/and reverse side part uncoated negative electrode active material layer, at least more than two panels above and below thermally conductive heat collection body
The heat sink runner of thermally conductive thermal-arrest is built up in the same area, constitutes the thermal energy disengaging heat sink runner of battery core；The heat sink runner protrudes into
In the intracorporal electrolyte more than needed of metal-back, heat sink runner processing is at mesh or bumps at bilayer.
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
Negative electrode tab is provided with thermally conductive heat collection body, the positive part or/and reverse side part that the thermally conductive heat collection body is negative current collector 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；The heat sink runner protrudes into the intracorporal electrolyte more than needed of metal-back,
Heat sink runner processing is at mesh or bumps at bilayer.
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 heat sink runner is provided with heat-exchanging part；Or institute
It states heat sink runner to be connected on the metal shell, the metal shell serves as radiator；Or the heat sink water passage surface has
Insulating layer or insulating film；Or the heat sink runner is located at least the one of the ipsilateral of the negative lug, opposite side and sides adjacent
Side；Or the heat sink runner has one or two or three in the side of negative lug；Or it is arranged on the heat sink runner
There is temperature sensor.
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 negative electrode tab 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 heat sink runner and the heat-exchanging part it is integrally welded；Or the heat sink
Runner bolts with the heat-exchanging part, cementing or be riveted into one；Or temperature sensing is provided on the heat-exchanging part
Device；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 heat sink runner is provided with thermal connection part；Or it leads
There are insulating layer, thermal insulation layer or insulating film in hot heat collection body surface；Or it is provided on thermally conductive heat collection body heat sink；Or thermally conductive collection
Between hot body or surface is provided with fin；Or thermally conductive heat collection body is connected position with negative electrode tab with wide；Or collector of showing up is flat
Row is in anode active material layer；Or collector of showing up is complete or collected works' fluid；Or collector of showing up is ipsilateral covering negative electrode active
In the middle part of material layer；Or the lamination is composite laminate or packed or shred lamination；Or the positive electrode active materials are phosphoric acid
Iron lithium, cobalt acid lithium, LiMn2O4 or ternary material；Or the negative electrode active material is carbon negative pole material, tin base cathode material, contains
Lithium transition-metal nitride negative electrode material or alloy type negative material.
6. lithium-ion-power cell as claimed in claim 5, it is characterised in that the thermal connection part is cooling fin.
7. lithium-ion-power cell as claimed in claim 6, it is characterised in that the thermal connection part is sheet metal.
8. lithium-ion-power cell as claimed in claim 7, it is characterised in that the sheet metal is more sheet metals.
9. lithium-ion-power cell as claimed in claim 8, it is characterised in that the sheet metal and thermally conductive heat collection body material phase
Together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710503656.9A CN109904554A (en) | 2017-06-28 | 2017-06-28 | A kind of lithium-ion-power cell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710503656.9A CN109904554A (en) | 2017-06-28 | 2017-06-28 | A kind of lithium-ion-power cell |
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| CN109904554A true CN109904554A (en) | 2019-06-18 |
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| CN201710503656.9A Pending CN109904554A (en) | 2017-06-28 | 2017-06-28 | A kind of lithium-ion-power cell |
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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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2017
- 2017-06-28 CN CN201710503656.9A patent/CN109904554A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101416343A (en) * | 2006-03-31 | 2009-04-22 | 丰田自动车株式会社 | Stacked type battery |
| CN102569866A (en) * | 2010-12-31 | 2012-07-11 | 比亚迪股份有限公司 | Battery |
| CN204991880U (en) * | 2015-09-24 | 2016-01-20 | 中信国安盟固利动力科技有限公司 | Lithium ion battery cell of control temperature rise |
| CN205050912U (en) * | 2015-10-19 | 2016-02-24 | 宁德时代新能源科技有限公司 | Secondary battery |
| CN105470558A (en) * | 2015-12-16 | 2016-04-06 | 山东精工电子科技有限公司 | Cylindrical lithium ion battery and manufacturing method therefor |
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