CN109873168A - A kind of lithium ion soft-package battery - Google Patents
A kind of lithium ion soft-package battery Download PDFInfo
- Publication number
- CN109873168A CN109873168A CN201710503429.6A CN201710503429A CN109873168A CN 109873168 A CN109873168 A CN 109873168A CN 201710503429 A CN201710503429 A CN 201710503429A CN 109873168 A CN109873168 A CN 109873168A
- Authority
- CN
- China
- Prior art keywords
- thermally conductive
- heat
- heat sink
- collection body
- 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
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 22
- 238000004806 packaging method and process Methods 0.000 claims abstract description 14
- 230000003447 ipsilateral effect Effects 0.000 claims abstract description 6
- 239000011149 active material Substances 0.000 claims abstract description 5
- 238000005452 bending Methods 0.000 claims description 18
- 239000003792 electrolyte Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 6
- 239000007773 negative electrode material Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 3
- 238000003466 welding 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
- 238000004804 winding Methods 0.000 claims 1
- 239000006183 anode active material Substances 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 22
- 239000012530 fluid Substances 0.000 description 22
- 238000011144 upstream manufacturing Methods 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000008676 import Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 230000007423 decrease 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
- 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
- 230000001934 delay 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
-
- 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
- Secondary Cells (AREA)
Abstract
Lithium ion soft-package battery, including packaging bag, anode ear, negative electrode lug, the battery core being contained in the packaging bag, anode ear and negative electrode lug stretch out packaging bag respectively, the positive plate includes plus plate current-collecting body and coated in the anode active material layer on plus plate current-collecting body, thermally conductive heat collection body is provided on positive plate or/and negative electrode tab, the thermally conductive heat collection body is the positive part of plus plate current-collecting body or/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 in the same area up and down 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 the heat pipe that shell and liquid-sucking core are constituted, heat sink runner and heat pipe constitute heat sink runner heat pipe module, it is ipsilateral and stretch out battery case that heat pipe is set to anode ear.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 soft-package batteries.
(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 new type lithium ion soft-package 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 soft-package battery, 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 soft-package battery, including packaging bag, anode ear, negative electrode lug, be contained in it is described
Battery core in packaging bag, anode ear and negative electrode lug stretch out packaging bag respectively, and the battery core includes the mutual anode wound or be superimposed
Piece, negative electrode tab and the diaphragm being set between the positive plate and the negative electrode tab, the positive plate include plus plate current-collecting body and
Coated in the anode active material layer on plus plate current-collecting body, the negative electrode tab include negative current collector and be coated in negative current collector
On negative electrode active material layer, it is characterised in that thermally conductive heat collection body, the thermally conductive thermal-arrest are provided on positive plate or/and negative electrode tab
Body is the positive part of plus plate current-collecting body or/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 in the same area up and down at least more than two panels, constitutes the disengaging of battery core thermal energy
Heat sink runner, heat sink runner overlap or are connected with the heat pipe that shell and liquid-sucking core are constituted, and heat sink runner and heat pipe constitute heat sink stream
Road heat pipe module, it is ipsilateral and stretch out battery case that heat pipe is set to anode ear.In this way, the heat on main heating position pole piece
It can quickly focus on the heat sink runner of thermally conductive thermal-arrest, then pass through the overlapping being arranged on the heat sink runner of thermally conductive thermal-arrest or company
It is connected to the heat pipe that shell and liquid-sucking core are constituted and this is passed through when battery temperature is too low to inside battery progress heat exchange rapidly
Mode heats heat sink runner, so that the pole piece in battery core be made to be rapidly achieved optimum working temperature, battery is allowed to keep best
Charge and discharge state slows down the decaying of battery, delays the service life of battery；Thermally conductive heat collection body can be integrally formed with positive plate,
Simplify process, improves production efficiency.
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 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 packaging bag
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 soft-package battery, including packaging bag, anode ear, negative electrode lug, be contained in it is described
Battery core in packaging bag, anode ear and negative electrode lug stretch out packaging bag respectively, and the battery core includes the mutual anode wound or be superimposed
Piece, negative electrode tab and the diaphragm being set between the positive plate and the negative electrode tab, the positive plate include plus plate current-collecting body and
Coated in the anode active material layer on plus plate current-collecting body, the negative electrode tab include negative current collector and be coated in negative current collector
On negative electrode active material layer, it is characterised in that thermally conductive heat collection body, the thermally conductive thermal-arrest are provided on positive plate or/and negative electrode tab
Body is the positive part of plus plate current-collecting body or/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 in the same area up and down at least more than two panels, constitutes the disengaging of battery core thermal energy
Heat sink runner, heat sink runner overlap or are connected with the heat pipe that shell and liquid-sucking core are constituted, and heat sink runner and heat pipe constitute heat sink stream
Road heat pipe module, it is ipsilateral and stretch out battery case that heat pipe is set to anode ear.
In each attached drawing, 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, 6 for into
Heat sink runner out, 7 be fluid course component, and 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 soft-package battery, including packaging bag, anode ear, negative electrode lug, the battery core being contained in the packaging bag, anode ear
Packaging bag is stretched out respectively with negative electrode lug, and the battery core includes the mutual positive plate for winding or being superimposed, negative electrode tab and is set to described
Diaphragm between positive plate and the negative electrode tab, the positive plate include plus plate current-collecting body and coated on plus plate current-collecting body just
Pole active material layer, the negative electrode tab include negative current collector and coated in the negative electrode active material layer on negative current collector,
It is characterized in that being provided with thermally conductive heat collection body in positive plate or/and negative electrode tab, the thermally conductive heat collection body is plus plate current-collecting body or/and bears
The collector of the local uncoated active material layer of the positive part of pole collector or/and reverse side, thermally conductive thermal-arrest at least more than two panels
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 runner of battery core, and heat sink runner is folded
The heat pipe that shell and liquid-sucking core are constituted is closed or is connected with, heat sink runner and heat pipe constitute heat sink runner heat pipe module, and heat pipe is set
It is ipsilateral and stretch out battery case to be placed in anode ear.
2. lithium ion soft-package battery 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 soft-package battery 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 soft-package battery 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 soft-package battery 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 soft-package battery 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 soft-package battery 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 soft-package battery 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.
9. the lithium ion soft-package battery as described in any claim in claim 1 to 7, it is characterised in that the setting of heat sink runner
There is heat-exchanging part；Or the heat sink runner and the heat-exchanging part it is integrally welded；Or the heat sink runner and institute
State heat-exchanging part bolt, cementing or be riveted into one；Or there are insulating layer, thermal insulation layer or insulation in thermally conductive heat collection body surface
Film；Or the heat sink water passage surface has insulating layer or insulating film；Or the heat sink runner is located at the same of the positive pole ear
Side, opposite side and sides adjacent at least side；Or the heat sink runner has one or two or three in the side of positive pole ear
It is a；Or thermally conductive heat collection body protrudes from positive plate；Or the thermally conductive heat collection body of protrusion gos deep into the electrolyte in packaging bag；
Or electrolyte heat exchanger is heated or cooled in the electrolyte.
10. the lithium ion soft-package battery as described in any claim in claim 1 to 7, it is characterised in that thermally conductive heat collection body
It is depressed in positive plate；Or thermally conductive heat collection body is connected position with positive plate with wide；Or temperature is provided on the heat sink runner
Sensor；Or temperature sensor is provided on the heat-exchanging part；Or the temperature sensor is film temperature sensing
Device or fiber grating temperature sensor；Or the temperature sensor is film temperature sensor or fiber grating temperature sensor
Device.
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| CN201710503429.6A CN109873168A (en) | 2017-06-28 | 2017-06-28 | A kind of lithium ion soft-package battery |
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| CN201710503429.6A CN109873168A (en) | 2017-06-28 | 2017-06-28 | A kind of lithium ion soft-package battery |
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| CN109873168A true CN109873168A (en) | 2019-06-11 |
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| CN201699105U (en) * | 2010-06-23 | 2011-01-05 | 北京科易动力科技有限公司 | Thermal management device of battery |
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