CN110148756A - A kind of lithium-ion-power cell - Google Patents
A kind of lithium-ion-power cell Download PDFInfo
- Publication number
- CN110148756A CN110148756A CN201710503731.1A CN201710503731A CN110148756A CN 110148756 A CN110148756 A CN 110148756A CN 201710503731 A CN201710503731 A CN 201710503731A CN 110148756 A CN110148756 A CN 110148756A
- Authority
- CN
- China
- Prior art keywords
- thermally conductive
- collection body
- heat sink
- heat collection
- sink runner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012530 fluid Substances 0.000 claims abstract description 31
- 239000003792 electrolyte Substances 0.000 claims abstract description 16
- 239000006183 anode active material Substances 0.000 claims abstract description 9
- 239000011149 active material Substances 0.000 claims abstract description 5
- 238000005452 bending Methods 0.000 claims description 18
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 3
- 230000003447 ipsilateral effect Effects 0.000 claims description 3
- 238000003475 lamination Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 230000000994 depressogenic effect Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 150000002739 metals Chemical class 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 22
- 238000011144 upstream manufacturing Methods 0.000 description 6
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 5
- 229910001416 lithium ion Inorganic materials 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000008676 import Effects 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 2
- 239000011258 core-shell material Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052493 LiFePO4 Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 description 1
- -1 Lithium transition-metal nitride Chemical class 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
Classifications
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
-
- 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
- H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
-
- 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
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
-
- 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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/70—Carriers or collectors characterised by shape or form
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
Abstract
Lithium-ion-power cell, the organic hard shell, the electrolyte being injected into organic hard shell including battery core, for accommodating the battery core and the top cover being fixedly connected on organic hard shell；Negative electrode tab includes 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 in the anode active material layer on plus plate current-collecting body, it is characterized in that positive plate and negative electrode tab are provided with thermally conductive heat collection body, the 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, thermally conductive heat collection body builds up the heat sink runner of thermally conductive thermal-arrest at least more than two panels, the thermal energy for constituting battery core passes in and out heat sink runner, heat sink runner overlaps or is connected with fluid course component, there is main fluid runner on shell or top cover, one or two or three or more battery core is thermally connected by Zhi Liuti flow-path tube part, it can effectively solve the problems such as battery temperature is too high or too low.
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.
The technical solution of the present invention is as follows: lithium-ion-power cell, including battery core, for accommodating the organic hard of the battery core
Shell, the electrolyte being injected into organic hard shell and the top cover being fixedly connected on organic hard 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 positive plate and negative electrode tab are provided with thermally conductive heat collection body, and the thermally conductive heat collection body is positive
The collector of the local uncoated active material layer in the positive part or/and reverse side of pole collector and negative current collector, at least two panels
The above thermally conductive heat collection body builds up the heat sink runner of thermally conductive thermal-arrest in the same area up and down, constitutes the thermal energy disengaging heat sink stream of battery core
Road, heat sink runner overlap or are connected with fluid course component, there is main fluid runner on shell or top cover, and one or two or three
The above battery core is thermally connected by Zhi Liuti flow-path tube part.In this way, thermally conductive heat collection body is overlapped to form heat sink in upper and lower the same area
Runner, and heat sink runner is heated or cooled by fluid course component, internal temperature of battery can be realized and be raised and lowered, begin
It maintains battery in suitable operating temperature eventually, improves battery working efficiency, extend battery life, eliminate safe hidden trouble；Shell or
There is main fluid runner on top cover, one or two or three or more battery core is thermally connected by Zhi Liuti flow-path tube part, is conducive to mention
Space-efficient, meanwhile, temperature also relative equilibrium between each battery core；Thermally conductive heat collection body can be integrally formed with positive plate, simplify work
Sequence improves production efficiency.
Optionally, thermally conductive heat collection body is spaced in the heat sink that the same area builds up the thermally conductive thermal-arrest of sandwich up and down at least more than two panels
Runner constitutes the heat sink runner of battery core thermal energy disengaging.
Optionally, of the invention to be further characterized in that the heat sink runner is thermally conductive heat collection body by being welded and fixed to be formed.This
Sample, thermally conductive heat collection body are not needed additionally to increase component, can be fixed together, and heat can be led rapidly by heat sink runner
Enter and export, controls battery in suitable temperature range.
Of the invention be further characterized in that described is welded as supersonic welding, Laser Welding or friction welding (FW).
Optionally, of the invention to be further characterized in that the heat sink runner is thermally conductive heat collection body by bolt or rivets fixed shape
At.In this way, thermally conductive heat collection body can be fixed together, heat can be imported rapidly and be exported by heat sink runner, control battery
In suitable temperature range.
Optionally, of the invention to be further characterized in that the heat sink runner is that thermally conductive heat collection body bending described in multilayer is fixed into one
Body.In this way, the heat on thermally conductive heat collection body would be even more beneficial to concentrate on heat sink runner, is conducive to radiate or heat.
Further, of the invention to be further characterized in that the thermally conductive heat collection body bending is vertical with positive plate or 0-89 ° of inclination angle.
In this way, the heat on thermally conductive heat collection body would be even more beneficial to concentrate on heat sink runner, is conducive to radiate or heat.
Optionally, of the invention to be further characterized in that the heat sink runner is that the thermally conductive unidirectional bending of heat collection body described in multilayer is fixed
Integrally.In this way, heat sink runner not only installed it is more convenient, but also be conducive to radiate or heat.
Optionally, of the invention to be further characterized in that the heat sink runner is the thermally conductive forward and reverse bending of heat collection body described in multilayer
It is integrally fixed.In this way, heat sink runner is conducive to radiate or heat.
Optionally, it is of the invention be further characterized in that the heat sink runner be the bending of part multilayer the thermally conductive heat collection body with
The straight thermally conductive heat collection body is integrally fixed.In this way, heat sink runner is conducive to radiate or heat.
Optionally, the thermally conductive heat collection body of the invention for being further characterized in that part multilayer bending is unidirectional bending.In this way,
Heat sink runner not only installed it is more convenient, but also be conducive to radiate or heat.
Optionally, the thermally conductive heat collection body of the invention for being further characterized in that part multilayer bending be positive, inverse bending.This
Sample, heat sink runner are conducive to radiate or heat.
Optionally, of the invention to be further characterized in that the perforation of some or all of thermally conductive heat collection body or 3D perforation or 3D are concave-convex.
In this way, the surface area of thermally conductive heat collection body increases, it is more advantageous to heat dissipation or heating.
Optionally, of the invention to be further characterized in that that perforation, netted, 3D perforation, 3D are accompanied between thermally conductive heat collection body is concave-convex
Thermally conductive heat-collecting part.In this way, the heat dissipation of thermally conductive heat collection body or heating efficiency will be more preferable.
Optionally, of the invention be further characterized in that is characterized in that heat sink runner is provided with thermal connection part.In this way, being thermally connected part
Can heat rapidly be imported or be exported heat sink runner.
Further, of the invention to be further characterized in that the thermal connection part is cooling fin.In this way, cooling fin can rapidly will be warm
Amount export heat sink runner.
Further, of the invention to be further characterized in that the thermal connection part is sheet metal.In this way, sheet metal can be fast by heat
Speed export heat sink runner.
Further, of the invention to be further characterized in that the sheet metal is identical as thermally conductive heat collection body material.In this way, sheet metal
It would be even more beneficial to connect with thermally conductive heat collection body.
Optionally, of the invention to be further characterized in that between thermally conductive heat collection body or surface is provided with fin.In this way, thermally conductive thermal-arrest
Heat on body can quickly be exported by fin, and then reduce the temperature of battery.
Optionally, it is of the invention be further characterized in that on thermally conductive heat collection body be provided with it is heat sink.In this way, thermally conductive by heat sink control
Heat collection body is within suitable temperature range.
Optionally, of the invention be further characterized in that is characterized in that heat sink runner is provided with heat-exchanging part.In this way, passing through heat
Replacement part can control the temperature of heat sink runner within the scope of suitable, and battery performance is avoided to be done harm to.
Further, of the invention to be further characterized in that the heat sink runner and the heat-exchanging part are integrally welded.This
Sample, heat sink runner, which does not need addition additional components with heat-exchanging part, securely to be connect, and connects also more convenient.
Further, of the invention to be further characterized in that the heat sink runner and heat-exchanging part bolt, cementing or riveting
It is connected into one.In this way, heat sink runner can be securely joined together with heat-exchanging part.
Optionally, of the invention to be further characterized in that the heat sink runner is connected on the metal shell, the metal-back
Body serves as radiator.In this way, the heat on heat sink runner is beneficial to reach the surface of battery, be conducive to radiate.
Optionally, of the invention to be further characterized in that there are insulating layer, thermal insulation layer or insulating film in thermally conductive heat collection body surface.This
Sample will avoid causing short circuit in inside battery, cause the danger such as explosion.
Optionally, of the invention to be further characterized in that the heat sink water passage surface has insulating layer or insulating film.In this way, will avoid
Short circuit is caused in inside battery, causes the danger such as explosion.
Optionally, it is of the invention be further characterized in that the heat sink runner be located at the ipsilateral of the positive pole ear, opposite side and
At least side of sides adjacent.
Optionally, of the invention to be further characterized in that the heat sink runner has one or two or three in the side of positive pole ear
It is a.It imports or exports from heat sink runner in this way, heat is more advantageous to.
Optionally, of the invention to be further characterized in that thermally conductive heat collection body protrudes from positive plate.In this way, be conducive to heat import or
Export.
Further, the thermally conductive heat collection body of the invention for being further characterized in that protrusion protrudes into the electrolyte in battery case
In.In this way, the heat of thermally conductive heat collection body can import in electrolyte, heat reaches rapidly battery surface through electrolyte, avoid because every
Film heat transfer property is bad, and heat is caused to gather in inside battery, causes dangerous；The heat in electrolyte can also be by leading simultaneously
Hot heat collection body and rapidly import pole piece, avoid battery temperature too low.
Further, electrolyte heat exchanger is heated or cooled in of the invention be further characterized in that in the electrolyte.
In this way, electrolyte can be such that battery temperature maintains in suitable range by the way that thermally conductive heat collection body is heated or cooled.
Optionally, of the invention to be further characterized in that thermally conductive heat collection body is depressed in positive plate.In such manner, it is possible to save inside battery
Space can make the capacity of the battery of same volume bigger.
Optionally, of the invention to be further characterized in that thermally conductive heat collection body is connected position with positive plate with wide.In this way, heating conduction
It is good, and production process is simple.
Optionally, of the invention to be further characterized in that collector of showing up is parallel to anode active material layer.
Further, of the invention to be further characterized in that collector of showing up is complete or collected works' fluid.
Optionally, of the invention to be further characterized in that collector of showing up is in the middle part of ipsilateral covering anode active material layer.
Optionally, of the invention be further characterized in that on the heat sink runner is provided with temperature sensor.In this way, can accurately obtain
Obtain the temperature data on heat sink runner.
Optionally, of the invention be further characterized in that on the heat-exchanging part is provided with temperature sensor.In this way, can be accurate
Obtain the temperature data on heat-exchanging part.
Further, of the invention to be further characterized in that the temperature sensor is film temperature sensor.
Optionally, of the invention to be further characterized in that the positive electrode active materials are LiFePO4, cobalt acid lithium, LiMn2O4 or three
First material.
Optionally, of the invention to be further characterized in that 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.
(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 section structure diagram of Fig. 1；
Fig. 3 is the structural schematic diagram of the embodiment of the present invention 3；
Fig. 4 is the section structure diagram of Fig. 3；
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 Fig. 9 of the present invention；
Figure 11 is the structural schematic diagram of the embodiment of the present invention 11；
Figure 12 is the structural schematic diagram of Figure 11 of the present invention；
Figure 13 is the structural schematic diagram of the embodiment of the present invention 13；
Figure 14 is the structural schematic diagram of Figure 13 of the present invention；
Figure 15 is the structural schematic diagram of the embodiment of the present invention 15；
Figure 16 is the structural schematic diagram of the embodiment of the present invention 16；
Figure 17 is the structural schematic diagram of the embodiment of the present invention 17.
(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, for accommodating the organic hard of the battery core
Shell, the electrolyte being injected into organic hard shell and the top cover being fixedly connected on organic hard 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 positive plate and negative electrode tab are provided with thermally conductive heat collection body, and the thermally conductive heat collection body is positive
The collector of the local uncoated active material layer in the positive part or/and reverse side of pole collector and negative current collector, at least two panels
The above thermally conductive heat collection body builds up the heat sink runner of thermally conductive thermal-arrest in the same area up and down, constitutes the thermal energy disengaging heat sink stream of battery core
Road, heat sink runner overlap or are connected with fluid course component, there is main fluid runner on shell or top cover, and one or two or three
The above battery core is thermally connected by Zhi Liuti flow-path tube part.
1 is battery case, and 2 be battery core, and 3 be anode ear, and 4 be negative electrode lug, and 5 be thermally conductive heat collection body, and 6 be heat sink runner, and 7 are
Fluid course component, 8 be heat-exchange device, and 9 be insulating layer.
As shown in figure 1, positive and negative tab is arranged in the same end, and the opposite of tab is arranged in fluid course component in thermally conductive heat collection body
End, and connect with anode ear.Fig. 2 is the sectional schematic diagram of Fig. 1, and thermally conductive heat collection body is connect with anode ear 3.
As shown in figure 3, positive and negative tab is arranged in the same end, the phase of tab is arranged in fluid course component for thermally conductive heat collection body
Opposite end, and connect with negative electrode lug.Fig. 4 is the sectional schematic diagram of Fig. 3, and thermally conductive heat collection body is connect with anode ear 3.
As shown in figure 5, thermally conductive heat collection body and positive and negative tab are arranged in the same end, and between positive and negative tab, while with
The fluid course component of thermally conductive heat collection body connection enters from battery cathode end, comes out from positive terminal, and in upstream end and comes out end
It is provided with insulating layer, will be insulated between fluid course component and tab.
As shown in fig. 6, thermally conductive heat collection body and positive and negative tab are arranged in the same end, and between positive and negative tab, while with
The fluid course component of thermally conductive heat collection body connection enters from battery cathode end, comes out from positive terminal, and is provided with coming out end
Insulating layer will insulate between fluid course component and tab.
As shown in fig. 7, the opposite end of battery is arranged in positive and negative tab, thermally conductive heat collection body is arranged in anode ear end and anode ear
The fluid course component of connection, thermally conductive heat collection body connection is passed in and out from the same port of battery, and equal with upstream end coming out end
It is provided with insulating layer, will be insulated between fluid course component and tab, while playing heat-insulated effect.
As shown in figure 8, the same end of battery is arranged in positive and negative tab, the opposite end at tab end is arranged in thermally conductive heat collection body,
The fluid course component connecting with thermally conductive heat collection body is passed in and out from the same port of battery, and is respectively provided with coming out end with upstream end
There is insulating layer, will insulate between fluid course component and tab, while playing heat-insulated effect.
As shown in figure 9, the opposite end of battery is arranged in positive and negative tab, the side of battery is arranged in thermally conductive heat collection body, and leads
The fluid course component of hot heat collection body connection enters from a port of battery, and a port comes out.Such as the section that Figure 10 is Fig. 9
Schematic diagram.
As shown in figure 11, the same end of battery is arranged in positive and negative tab, and the side of battery is arranged in thermally conductive heat collection body, and leads
The fluid course component of hot heat collection body connection enters from a port of battery, and a port comes out.If Figure 12 is the disconnected of Figure 11
Face schematic diagram.
As shown in figure 13, the abutting end of negative electrode lug setting is arranged in anode ear, and the phase of anode ear is arranged in thermally conductive heat collection body
Opposite end, the fluid course component connecting with thermally conductive heat collection body enter from a port of battery, and a port comes out.As Figure 14 is
The sectional schematic diagram of Figure 13.
As shown in figure 15, the opposite end of battery is arranged in positive and negative tab, and the side of battery is arranged in thermally conductive heat collection body, and leads
The fluid course component of hot heat collection body connection is passed in and out from the same port of battery, and in the upstream end of fluid course component and is gone out
To be provided with thermal insulation layer between holding.
As shown in figure 16, the abutting end of battery is arranged in positive and negative tab, and the side of battery is arranged in thermally conductive heat collection body, anode
The opposite end of ear, the fluid course component connecting with thermally conductive heat collection body are passed in and out from the same port of battery, and in fluid course
Thermal insulation layer is provided between the upstream end of component and out end.
As shown in figure 17, the same end of battery is arranged in positive and negative tab, and the side of battery is arranged in thermally conductive heat collection body, and leads
The fluid course component of hot heat collection body connection is passed in and out from the same port of battery, and in the upstream end of fluid course component and is gone out
To be provided with thermal insulation layer between holding.
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 (10)
1. lithium-ion-power cell, organic hard shell including battery core, for accommodating the battery core is injected into organic hard shell
Electrolyte and the top cover that is fixedly connected on organic hard 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
Be provided with thermally conductive heat collection body in positive plate and negative electrode tab, the thermally conductive heat collection body be plus plate current-collecting body and negative current collector just
The collector of the local uncoated active material layer of face part or/and reverse side, thermally conductive heat collection body is up and down same at least more than two panels
Region builds up the heat sink runner of thermally conductive thermal-arrest, constitutes the thermal energy disengaging heat sink runner of battery core, and heat sink runner overlaps or be connected with stream
There is main fluid runner on body flow path features, shell or top cover, one or two or three or more battery core passes through Zhi Liuti flow-path tube
Part is thermally connected.
2. lithium-ion-power cell as described in claim 1, it is characterised in that thermally conductive heat collection body is between the upper and lower at least more than two panels
It is interposed between the heat sink runner that the same area builds up the thermally conductive thermal-arrest of sandwich, constitutes the heat sink runner of battery core thermal energy disengaging.
3. lithium-ion-power cell as claimed in claim 2, 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.
4. lithium-ion-power cell as claimed in claim 3, 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.
5. lithium-ion-power cell as claimed in claim 4, it is characterised in that described to be welded as supersonic welding, Laser Welding or rub
Wipe weldering.
6. lithium-ion-power cell as claimed in claim 2, it is characterised in that the heat sink runner is that thermally conductive heat collection body passes through
Bolt or the fixed formation of riveting.
7. lithium-ion-power cell as claimed in claim 3, it is characterised in that the heat sink runner is thermally conductive collection described in multilayer
Hot body bending is integrally fixed.
8. the lithium-ion-power cell as described in any claim in claim 1 to 7, it is characterised in that the thermally conductive thermal-arrest
The angle of body bending and positive plate is 0-90 °；Or the heat sink runner is that the thermally conductive unidirectional bending of heat collection body described in multilayer is fixed
Integrally；Or the heat sink runner is that the thermally conductive forward and reverse bending of heat collection body described in multilayer is integrally fixed；Or the heat sink
Runner is that the thermally conductive heat collection body of multilayer bending is integrally fixed with the straight thermally conductive heat collection body；Or multilayer bending
The thermally conductive heat collection body is positive, inverse bending；Or heat sink runner is the bending of part multilayered thermally-conductive heat collection body and straight thermally conductive collection
Hot body is integrally welded；Or the perforation of some or all of thermally conductive heat collection body or 3D perforate or 3D is concave-convex；Or thermally conductive heat collection body
Between accompany perforation, netted, 3D perforation, 3D bumps thermally conductive heat-collecting part；Or itself bending is accompanied between thermally conductive heat collection body
Perforation, netted, 3D perforation, 3D bumps thermally conductive heat collection body；Or heat sink runner is provided with thermal connection part；Or the heat is even
Fitting is cooling fin；Or the thermal connection part is sheet metal；Or the sheet metal is more sheet metals；Or the sheet metal
It is identical as thermally conductive heat collection body material；Or between thermally conductive heat collection body or surface is provided with fin；Or it is arranged on thermally conductive heat collection body
Have heat sink；Or heat sink runner is provided with heat-exchanging part；Or the heat sink runner and the heat-exchanging part are welded into one
Body；Or the heat sink runner bolts with the heat-exchanging part, is cementing or be riveted into one.
9. the lithium-ion-power cell as described in any claim in claim 1 to 7, it is characterised in that thermally conductive thermal-arrest body surface
There are insulating layer, thermal insulation layer or insulating film in face；Or the heat sink water passage surface has insulating layer or insulating film；Or the heat
Confluence road is located at at least side of the ipsilateral of the positive pole ear, opposite side and sides adjacent；Or the heat sink runner is in anode
There are one or two or three in the side of tab；Or thermally conductive heat collection body protrudes from positive plate；Or the thermally conductive collection of protrusion
Hot body gos deep into the electrolyte in battery case；Or electrolyte heat exchanger is heated or cooled in the electrolyte；Or
The thermally conductive heat collection body of person is depressed in positive plate.
10. the lithium-ion-power cell as described in any claim in claim 1 to 7, it is characterised in that thermally conductive heat collection body
It is connected position with positive plate with wide；Or temperature sensor is provided on the heat sink runner；Or on the heat-exchanging part
It is provided with temperature sensor；Or the temperature sensor is film temperature sensor or fiber grating temperature sensor；Or
The temperature sensor is film temperature sensor or fiber grating temperature sensor；Or the heat sink runner be connected to it is described
On organic hard shell, organic hard shell serves as radiator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710503731.1A CN110148756A (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 |
|---|---|---|---|
| CN201710503731.1A CN110148756A (en) | 2017-06-28 | 2017-06-28 | A kind of lithium-ion-power cell |
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| Publication Number | Publication Date |
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| CN110148756A true CN110148756A (en) | 2019-08-20 |
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ID=67588009
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710503731.1A Pending CN110148756A (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 |
|---|---|---|---|---|
| CN111370809A (en) * | 2020-03-25 | 2020-07-03 | 烟台厚旭能源科技有限责任公司 | Heat radiation structure of power battery |
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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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Application publication date: 20190820 |