CN105846011B - A kind of Local cooling battery module suitable for flexible packing lithium ion battery - Google Patents
A kind of Local cooling battery module suitable for flexible packing lithium ion battery Download PDFInfo
- Publication number
- CN105846011B CN105846011B CN201610222265.5A CN201610222265A CN105846011B CN 105846011 B CN105846011 B CN 105846011B CN 201610222265 A CN201610222265 A CN 201610222265A CN 105846011 B CN105846011 B CN 105846011B
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- CN
- China
- Prior art keywords
- lug
- cooling
- battery
- straight slot
- lithium ion
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- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6553—Terminals or leads
-
- 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
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
-
- 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
Abstract
The invention discloses a kind of Local cooling battery modules suitable for flexible packing lithium ion battery, including housing and multiple battery cells, the multiple battery cell is disposed in the housing with layered laminate, further includes lug cooling device, strap and bottom coohng device；The edge sealing of the battery cell is anchored on by strap in the cooling straight slot on the lug straight slot and bottom coohng device of lug cooling device.The present invention by heat derives more caused by lug, effectively can cool down battery pole ear, be improved the soaking performance and heat dissipation performance of battery pack.It is mutually squeezed caused by fever expansion when can work to avoid battery, improves the safety of battery.
Description
Technical field
The present invention relates to high capacity lithium ion battery technical field, particularly polylith flexible packing lithium ion battery monomers to be superimposed
Integrated approach, especially can be to battery modular structure that battery is locally cooled down.
Background technology
The enhancing realized with advances in technology with human environment protection, green energy resource industry both domestic and external come into
The stage of high speed development, electric vehicle industry, communications industry and certain special trades all start widely to use high-energy high-power
Lithium ion battery as power supply, and weight ratio to power module and volume when safety propose very high requirement.It is long
Since phase, people are carrying out various researchs always to the safety of battery, the encapsulating structure of battery pack and production efficiency etc..
Lithium electron ion battery power is formed by multiple lithium-ion battery monomer assembled packages.In large capacity, high power
In the production of lithium ion power supply, battery cell is typically subjected to tandem compound and realizes high pressure, battery cell is subjected to group in parallel
It closes and improves capacity.Battery cell has two kinds of aluminum hull/box hat battery and soft-package battery according to the difference of housing.Aluminum hull/box hat battery
Monomer has the advantages of intensity is good, external easy for assembly, but its plasticity works as inside not as good as polymer flexible packaging lithium ion battery
When generating a large amount of gases, because shell rigidly cannot discharge more by force internal gas, the safety accidents such as explosion are easily caused.Flexible-packaged lithium
Ion battery monomer has flexible design, has a safety feature, thermal conductivity is good, and adaptive temperature is wide, can high current charge-discharge
The advantages that, and solve safety and life problems substantially, become the preferred product currently used for making large power supply.So
And flexible packing lithium ion battery monomer because its outer packing be one layer of aluminum plastic film, entire monomer is softer, reduces the compacting of battery
Property, battery core packaging film are easy to be punctured, and reduce its safety, and how effective protection battery core packaging film is intact and ensure battery
Compactibility become the battery unit package structure design emphasis problem to be solved.
On the other hand, in the high current charge-discharge course of work, due to the fever of battery, the accumulation of heat of battery pack, meeting
Battery consistency is caused to reduce, battery generates expansion, each battery with two side terminals and balanced heavy after affecting battery in groups
Index is wanted, so as to reduce the cycle life of battery.Moreover, how effectively the fever of battery is focused primarily upon near lug,
The soaking performance and heat dissipation performance of battery pack are cooled down, improved to battery pole ear, and becoming battery unit package structure design will solve
Another emphasis problem certainly.
Invention content
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of office suitable for flexible packing lithium ion battery
Portion cools down battery module.
The object of the present invention is achieved like this：
A kind of Local cooling battery module suitable for flexible packing lithium ion battery, including housing and multiple battery cells,
The multiple battery cell is disposed in the housing with layered laminate, and it is cold to further include lug cooling device, strap and bottom
But device；The edge sealing of the battery cell is anchored on the lug straight slot of lug cooling device and bottom coohng device by strap
On cooling straight slot in.
The lug cooling device is by lug cooling cavities, lug cooling cavities inlet and lug cooling cavities liquid outlet
Composition；The lug straight slot of up/down perforation is provided in lug cooling cavities, the edge sealing on the battery cell top is placed in the pole
In ear straight slot, lug is passed through out of described lug straight slot.
The bottom coohng device is by bottom coohng cavity, bottom coohng cavity inlet and bottom coohng cavity liquid outlet
Composition；The cooling straight slot of up/down perforation is provided on bottom coohng cavity, the edge sealing of the battery cell bottom is placed in the cooling
In straight slot.
The thermal conductivity factor of the lug cooling cavities material is more than 300W/m DEG C；The outer surface of lug cooling cavities carries out
Oxidation processes or coated with thermally conductive insulated paint.
The thermal conductivity factor of the bottom coohng cavity material is more than 300W/m DEG C, and the outer surface of bottom coohng cavity carries out
Oxidation processes or coated with thermally conductive insulated paint.
It is coated in the lug straight slot or the thermal conducting agent of filling, the thermal conducting agent is viscosity or half stickum.
It is coated in the cooling straight slot or the thermal conducting agent of filling, the thermal conducting agent is viscosity or half stickum.
A kind of Local cooling battery module suitable for flexible packing lithium ion battery provided by the invention, it is larger generating heat
Battery pole ear is nearby provided with cooling device, is provided with the lug straight slot of up/down perforation on lug cooling device, on battery cell
The edge sealing in portion is placed in the lug straight slot, and lug is passed through out of this lug straight slot；Lug cooling device is hollow structure, coolant
Enter from lug cooling cavities inlet, flowed out from lug cooling cavities liquid outlet, it can be by heat more caused by lug
Amount export effectively cools down battery pole ear, is improved the soaking performance and heat dissipation performance of battery pack.It is adjacent in battery module
There is the distance of 0.2-0.5mm between battery cell, mutually squeezed caused by fever expansion when can work to avoid battery, improved
The safety of battery.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the stereogram of battery module of the embodiment of the present invention.
Fig. 2 is the explosive view of Fig. 1.
Fig. 3 is the sectional view of Fig. 1.
Fig. 4 is the partial enlarged view of Fig. 3.
Fig. 5 is the cascading schematic diagram of the embodiment of the present invention.
Component symbol explanation：
Specific embodiment
Below in conjunction with the accompanying drawings and the specific embodiments to embodiment of the present invention provide one kind be suitable for flexible-packaged lithium from
The Local cooling battery module of sub- battery is further described in detail.
Also referring to Fig. 1 to Fig. 3, the present invention provides a kind of Local cooling battery suitable for flexible packing lithium ion battery
Module 1, including：Lug cooling device 10, strap 30, bottom coohng device 40 and multiple battery cells 20；Battery cell 20
Edge sealing 201 be fixed by strap 30 on the lug straight slot on lug cooling device 10 and bottom coohng device 40
It cools down in straight slot.
The battery cell 20 is flexible packing lithium ion battery.Each battery cell 20 is that one can independently carry out charge and discharge
Lithium ion battery.The battery cell 20 of same battery module 1 have basically identical shape and size, can it is parallel with one another or
Series connection.The battery cell 20 may include lug 202, and charge and discharge are carried out for being connected with each other and being connect with external circuit.For ease of connecing
Line, the lug 202 of all battery cells 20 is arranged at the lateral surface of the battery module 1 in same battery module 1.The battery list
20 surrounding of body has edge sealing 201, to be thinner than battery middle section.
Lug cooling device 10 is gone out by lug cooling cavities 101, lug cooling cavities inlet 102 and lug cooling cavities
Liquid mouth 103 forms；The lug straight slot of up/down perforation, the edge sealing 201 on 20 top of battery cell are provided in lug cooling cavities 101
It is placed in the lug straight slot, lug 202 is passed through out of this lug straight slot；Lug cooling cavities 101 be hollow structure, coolant
(not shown) enters from lug cooling cavities inlet 102, is flowed out from lug cooling cavities liquid outlet 103, can be by lug 202
Generated more heat derives.
The structure of bottom coohng device 40 is close with lug cooling device 10, by bottom coohng cavity 401, bottom coohng chamber
Body inlet 402 and bottom coohng cavity liquid outlet 403 form；The cooling of up/down perforation is provided on bottom coohng cavity 401
Straight slot, the edge sealing 201 of 20 bottom of battery cell are placed in the cooling straight slot；Bottom coohng cavity 401 is also hollow structure, cooling
Liquid (not shown) enters from bottom coohng cavity inlet 102, is flowed out from bottom coohng cavity liquid outlet 103, can be by battery
The heat derives that 20 bottom of monomer generates.
The side of lug cooling cavities 101 and bottom coohng cavity 401 is equipped with groove, for limiting strap 30
Position.
The material of lug cooling cavities 101 and bottom coohng cavity 401 can be the material (heat conduction with higher heat-conductivity
Coefficient should be greater than 300W/m DEG C), such as metal, so as to conducive to by the heat derives of battery cell 20.Lug cooling cavities 101 and
The outer surface of bottom coohng cavity 401 need to carry out oxidation processes to ensure that its surface insulation or one layer of thermostable heat-conductive of coating are exhausted
Edge paint.
Referring to Fig. 4, the distance on lug cooling cavities 101 and bottom coohng cavity 401 between adjacent straight slot is slightly larger than electricity
The thickness of pond monomer 20 has the distance of 0.2-0.5mm, fever expansion when can work to avoid battery between adjacent cell monomer 20
Caused by mutually squeeze.
Further, to enhance heat dissipation performance, which can also further comprise cooling down in edge sealing 201 and lug
The thermal conducting agent (not shown) for coating or filling between contact surface on cavity 101 and bottom coohng cavity 401 between straight slot.The heat conduction
Agent can be the good viscosity of heat conductivility or half stickum, such as silica gel.The thermal conducting agent can thoroughly exclude contact surface it
Between air, reduce thermal resistance, improve heat dissipation performance.In addition, thermal conducting agent is also beneficial to fix the battery cell 20.
Fig. 5 show the present invention and carries out the another embodiment after cascading, passes through the more a electricity of long strap 50
Pond module carries out cascading.
Claims (4)
1. a kind of Local cooling battery module suitable for flexible packing lithium ion battery, including housing and multiple battery cells, institute
It is disposed in the housing with layered laminate to state multiple battery cells, which is characterized in that further include lug cooling device, strap with
And bottom coohng device；The edge sealing of the battery cell is anchored on lug straight slot and the bottom of lug cooling device by strap
In cooling straight slot on cooling device；Wherein,
The lug cooling device is by lug cooling cavities of its material thermal conductivity more than 300W/m DEG C, lug cooling cavities
Inlet and lug cooling cavities liquid outlet composition；The lug straight slot of up/down perforation, the electricity are provided in lug cooling cavities
The edge sealing on pond monomer top is placed in the lug straight slot, and lug is passed through out of described lug straight slot；In the lug straight slot also
It coats or filled with thermal conducting agent；
The bottom coohng device is by bottom coohng cavity of its material thermal conductivity more than 300W/m DEG C, bottom coohng cavity
Inlet and bottom coohng cavity liquid outlet composition；The cooling straight slot of up/down perforation, the electricity are provided on bottom coohng cavity
The edge sealing of pond monomer bottom is placed in the cooling straight slot；It is also coated or filled with thermal conducting agent in the cooling straight slot.
2. a kind of Local cooling battery module suitable for flexible packing lithium ion battery according to claim 1, feature
It is that the outer surface of the lug cooling cavities also carries out oxidation processes or coated with thermally conductive insulated paint.
3. a kind of Local cooling battery module suitable for flexible packing lithium ion battery according to claim 1, feature
It is that the outer surface of the bottom coohng cavity also carries out oxidation processes or coated with thermally conductive insulated paint.
4. a kind of Local cooling battery module suitable for flexible packing lithium ion battery according to claim 1, feature
It is the thermal conducting agent for viscosity or half stickum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610222265.5A CN105846011B (en) | 2016-04-11 | 2016-04-11 | A kind of Local cooling battery module suitable for flexible packing lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610222265.5A CN105846011B (en) | 2016-04-11 | 2016-04-11 | A kind of Local cooling battery module suitable for flexible packing lithium ion battery |
Publications (2)
| Publication Number | Publication Date |
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| CN105846011A CN105846011A (en) | 2016-08-10 |
| CN105846011B true CN105846011B (en) | 2018-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610222265.5A Active CN105846011B (en) | 2016-04-11 | 2016-04-11 | A kind of Local cooling battery module suitable for flexible packing lithium ion battery |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106207072B (en) * | 2016-09-14 | 2018-11-13 | 恒大法拉第未来智能汽车（广东）有限公司 | Battery pack lug cooling structure, battery pack and the vehicle with the battery pack |
| CN106299544A (en) * | 2016-10-21 | 2017-01-04 | 法乐第(北京)网络科技有限公司 | Battery modules and battery bag |
| CN109643768B (en) * | 2016-12-06 | 2022-02-18 | Sk新技术株式会社 | Secondary battery module |
| CN106711543B (en) * | 2016-12-23 | 2019-05-21 | 惠州市亿能电子有限公司 | A kind of battery modules of tab water-cooling |
| CN110380151A (en) * | 2018-04-12 | 2019-10-25 | 中信国安盟固利动力科技有限公司 | A kind of liquid cooling plate and lithium battery mould group |
| JP7196872B2 (en) * | 2020-02-26 | 2022-12-27 | トヨタ自動車株式会社 | Bipolar batteries and bipolar battery stacks |
| WO2021212513A1 (en) * | 2020-04-24 | 2021-10-28 | 东莞新能德科技有限公司 | Battery encapsulation structure |
| CN113871810B (en) * | 2020-06-30 | 2023-02-10 | 比亚迪股份有限公司 | Utmost point ear and electric core, battery module and battery package that have it |
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| CN101855748A (en) * | 2007-11-09 | 2010-10-06 | 株式会社Lg化学 | Battery module of excellent heat dissipation property and heat exchange member |
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| CN102881959A (en) * | 2012-09-29 | 2013-01-16 | 湖北绿驰科技有限公司 | Water-cooled heat management system of electric automobile battery pack |
| KR20130073106A (en) * | 2011-12-23 | 2013-07-03 | 에스케이이노베이션 주식회사 | The battery module equipped with a cooling pipes |
| CN204809333U (en) * | 2015-08-03 | 2015-11-25 | 上海中聚佳华电池科技有限公司 | Laminate polymer battery module |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101855748A (en) * | 2007-11-09 | 2010-10-06 | 株式会社Lg化学 | Battery module of excellent heat dissipation property and heat exchange member |
| CN102823023A (en) * | 2010-03-26 | 2012-12-12 | 戴姆勒股份公司 | Battery having a plurality of single cells |
| KR20130073106A (en) * | 2011-12-23 | 2013-07-03 | 에스케이이노베이션 주식회사 | The battery module equipped with a cooling pipes |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105846011A (en) | 2016-08-10 |
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Effective date of registration: 20201023 Address after: 215500 No.13, Caotang Road, Changshu, Suzhou, Jiangsu Province Patentee after: Changshu intellectual property operation center Co.,Ltd. Address before: Meng Xi Road 212003 Zhenjiang city of Jiangsu province Jingkou District No. 2 Patentee before: JIANGSU University OF SCIENCE AND TECHNOLOGY |
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Address after: 215500 5th floor, building 4, 68 Lianfeng Road, Changfu street, Changshu City, Suzhou City, Jiangsu Province Patentee after: Changshu intellectual property operation center Co.,Ltd. Address before: No.13 caodang Road, Changshu City, Suzhou City, Jiangsu Province Patentee before: Changshu intellectual property operation center Co.,Ltd. |