CN105846011A - Partial cooling battery module suitable for softly-packaged lithium ion battery - Google Patents
Partial cooling battery module suitable for softly-packaged lithium ion battery Download PDFInfo
- Publication number
- CN105846011A CN105846011A CN201610222265.5A CN201610222265A CN105846011A CN 105846011 A CN105846011 A CN 105846011A CN 201610222265 A CN201610222265 A CN 201610222265A CN 105846011 A CN105846011 A CN 105846011A
- Authority
- CN
- China
- Prior art keywords
- cooling
- lug
- battery
- lithium ion
- groove
- 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.)
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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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a partial cooling battery module suitable for a softly-packaged lithium ion battery. The partial cooling battery module comprises a shell and multiple single batteries, wherein the multiple single batteries are arranged in the shell in a laminated manner; the partial cooling battery module also comprises a tab cooling apparatus, packing belts and a bottom cooling apparatus; and the sealing edges of the single batteries are tightened in a tab through slot of the tab cooling apparatus and a cooling through slot of the bottom cooling apparatus through the packing belts. According to the partial cooling battery module, more heat generated by the tabs can be exported, so that the battery tabs can be effectively cooled, and the soaking performance and the radiating performance of the battery pack can be improved; and in addition, mutual extrusion of the batteries caused by expansion due to heat generated in operation can be avoided, so that the safety of the battery can be improved.
Description
Technical field
The present invention relates to high capacity lithium ion battery technical field, particularly polylith flexible packing lithium ion battery monomer
Superposition integrated approach, the battery modular structure that especially battery local can be cooled down.
Background technology
Along with progress and the enhancing of human environment protection consciousness of science and technology, green energy resource industry both domestic and external is
Entering the stage of high speed development, electric motor car industry, communications industry and some special trade all start widely
Use the powerful lithium ion battery of high-energy as power supply, and to the weight ratio of power module and volume when
Safety proposes the highest requirement.For a long time, the safety of battery, the encapsulation of set of cells are tied by people
Structure and production efficiency etc. are carrying out various research always.
Lithium electron ion battery power is to be formed by multiple lithium-ion battery monomer assembled package.Large Copacity,
In the production of high-power lithium ion power supply, it is common that battery cell is carried out tandem compound and realizes high pressure, by electricity
Pond monomer carries out parallel combination and improves capacity.Battery cell, according to the difference of housing, has aluminum hull/box hat battery
With soft-package battery two kinds.It is good that aluminum hull/box hat battery cell has intensity, the advantage of outside simple and convenient assembly, but its
Plasticity is not as good as polymer flexible packaging lithium ion battery, when inside produces a large amount of gas, because of shell rigidity relatively
Can not discharge by force internal gas, the security incident such as easily set off an explosion.Flexible packing lithium ion battery monomer has
Flexible design, security performance is good, and heat-conductivity conducting performance is good, adaptive temperature width, can high current charge-discharge etc. excellent
Point, and substantially solve safety and life problems, become the first-selected product being currently used for making large power supply
Product.But, flexible packing lithium ion battery monomer is one layer of aluminum plastic film because of its outer package, and whole monomer is softer,
Reducing the compactibility of battery, battery core packaging film is easy to be punctured, and reduces its safety, the most effectively
Protection battery core packaging film is intact and ensures that the compactibility of battery becomes the weight that the design of battery unit package structure is to be solved
A point difficult problem.
On the other hand, in high current charge-discharge work process, due to the heating of battery, the heat of set of cells tires out
Long-pending, battery consistency can be caused to reduce, battery produces and expands, and have impact on the one of battery rear each battery in groups
Cause property and balanced important indicator, thus reduce the cycle life of battery.And, the heating master of battery
Battery pole ear near lug to be concentrated on, cools down, improves the soaking performance of set of cells the most effectively
And heat dispersion, become another emphasis difficult problem that the design of battery unit package structure is to be solved.
Summary of the invention
Present invention aims to the deficiencies in the prior art, it is provided that one is applicable to flexible packing lithium ion battery
Local cooling battery module.
The object of the present invention is achieved like this:
A kind of Local cooling battery module being applicable to flexible packing lithium ion battery, including housing and multiple battery
Monomer, the plurality of battery cell is arranged in described housing with layered laminate, also include lug cooling device,
Strap and bottom coohng device；The edge sealing of described battery cell is anchored on lug cooling dress by strap
In cooling groove on the lug groove put and bottom coohng device.
Described lug cooling device is by lug cooling cavities, lug cooling cavities inlet and lug cooling cavities
Liquid outlet forms；The lug groove of up/down perforation, described battery cell top it is provided with in lug cooling cavities
Edge sealing be placed in described lug groove, lug passes in described lug groove.
Described bottom coohng device is by bottom coohng cavity, bottom coohng cavity inlet and bottom coohng cavity
Liquid outlet forms；The cooling groove of up/down perforation it is provided with, bottom described battery cell on bottom coohng cavity
Edge sealing be placed in this cooling groove.
The heat conductivity of described lug cooling cavities material is more than 300W/m DEG C；The appearance of lug cooling cavities
Face carries out oxidation processes or coated with thermally conductive insullac.
The heat conductivity of described bottom coohng cavity material is more than 300W/m DEG C, the appearance of bottom coohng cavity
Face carries out oxidation processes or coated with thermally conductive insullac.
Coating or the thermal conducting agent of filling in described lug groove, described thermal conducting agent is viscosity or half stickum.
Coating or the thermal conducting agent of filling in described cooling groove, described thermal conducting agent is viscosity or half stickum.
A kind of Local cooling battery module being applicable to flexible packing lithium ion battery that the present invention provides, in heating relatively
Being provided with chiller near big battery pole ear, the lug that lug cooling device is provided with up/down perforation leads to
Groove, the edge sealing on battery cell top is placed in this lug groove, and lug passes in this lug groove；Lug
Chiller is hollow structure, and coolant enters from lug cooling cavities inlet, goes out from lug cooling cavities
Liquid mouth flows out, and can be derived by heat more produced by lug, effectively battery pole ear is cooled down,
Improve soaking performance and the heat dispersion of set of cells.Battery module there is 0.2-0.5mm between adjacent cell monomer
Distance, fever expansion when can avoid battery operated and the mutual extruding that causes, improve the safety of battery.
Accompanying drawing explanation
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the axonometric chart of embodiment of the present invention battery module.
Fig. 2 is the explosive view of Fig. 1.
Fig. 3 is the sectional view of Fig. 1.
Fig. 4 is the partial enlarged drawing of Fig. 3.
Fig. 5 is the cascading schematic diagram of the embodiment of the present invention.
Component symbol illustrates:
Detailed description of the invention
The one provided embodiment of the present invention below in conjunction with the accompanying drawings and the specific embodiments is applicable to flexible package
The Local cooling battery module of lithium ion battery further describes in detail.
Seeing also Fig. 1 to Fig. 3, the present invention provides a kind of local being applicable to flexible packing lithium ion battery cold
But battery module 1, including: lug cooling device 10, strap 30, bottom coohng device 40 and multiple electricity
Pond monomer 20；The edge sealing 201 of battery cell 20 is fixed in lug cooling device 10 by strap 30
On lug groove and cooling groove on bottom coohng device 40 in.
This battery cell 20 is flexible packing lithium ion battery.Each battery cell 20 is one and can independently enter
The lithium ion battery of row discharge and recharge.The battery cell 20 of same battery module 1 have basically identical shape and
Size, can parallel with one another or series connection.This battery cell 20 can include lug 202, is used for being connected with each other also
It is connected with external circuit and carries out discharge and recharge.For ease of wiring, all battery cells 20 in same battery module 1
Lug 202 is arranged at the lateral surface of this battery module 1.This battery cell 20 surrounding has edge sealing 201,
It is thinner than battery mid portion.
Lug cooling device 10 is cold by lug cooling cavities 101, lug cooling cavities inlet 102 and lug
But cavity liquid outlet 103 forms；The lug groove of up/down perforation it is provided with, electricity in lug cooling cavities 101
The edge sealing 201 on pond monomer 20 top is placed in this lug groove, and lug 202 passes in this lug groove；
Lug cooling cavities 101 is hollow structure, and coolant (not shown) is from lug cooling cavities inlet 102
Enter, flow out from lug cooling cavities liquid outlet 103, can be by heat more produced by lug 202
Derive.
The structure of bottom coohng device 40 is close with lug cooling device 10, by bottom coohng cavity 401, the end
Portion's cooling cavities inlet 402 and bottom coohng cavity liquid outlet 403 form；On bottom coohng cavity 401
Being provided with the cooling groove of up/down perforation, the edge sealing 201 bottom battery cell 20 is placed in this cooling groove；
Bottom coohng cavity 401 is also hollow structure, and coolant (not shown) is from bottom coohng cavity inlet 102
Enter, flow out from bottom coohng cavity liquid outlet 103, the heat produced can be led bottom battery cell 20
Go out.
The side of lug cooling cavities 101 and bottom coohng cavity 401 is provided with groove, for strap 30
Carry out spacing.
The material of lug cooling cavities 101 and bottom coohng cavity 401 can be the material with higher heat-conductivity
Material (heat conductivity should be greater than 300W/m DEG C), such as metal, thus is beneficial to the heat of battery cell 20
Derive.The outer surface of lug cooling cavities 101 and bottom coohng cavity 401 need to carry out oxidation processes to ensure
Its surface insulation, or one layer of thermostable heat-conductive insullac of coating.
Refer to the distance summary between adjacent groove on Fig. 4, lug cooling cavities 101 and bottom coohng cavity 401
More than the thickness of battery cell 20, between adjacent cell monomer 20, there is the distance of 0.2-0.5mm, can keep away
Fever expansion when exempting from battery operated and the mutual extruding that causes.
Further, for strengthening heat dispersion, this battery module 1 also can further include at edge sealing 201 with
Coat or fill between contact surface between groove in lug cooling cavities 101 and bottom coohng cavity 401 leads
Thermit powder (not shown).This thermal conducting agent can be the viscosity or half stickum that heat conductivility is good, such as silicon
Glue.This thermal conducting agent can thoroughly get rid of the air between contact surface, reduces thermal resistance, improves heat dispersion.Separately
Outward, thermal conducting agent is also beneficial to fix this battery cell 20.
Fig. 5 show the another embodiment after the present invention carries out cascading, by long strap 50 the more
Individual battery module carries out cascading.
Claims (7)
1. it is applicable to a Local cooling battery module for flexible packing lithium ion battery, including housing and multiple electricity
Pond monomer, the plurality of battery cell is arranged in described housing with layered laminate, it is characterised in that also include
Lug cooling device, strap and bottom coohng device；The edge sealing of described battery cell is tight by strap
It is fixed in the cooling groove on the lug groove of lug cooling device and bottom coohng device.
A kind of Local cooling battery mould being applicable to flexible packing lithium ion battery the most according to claim 1
Block, it is characterised in that described lug cooling device is by lug cooling cavities, lug cooling cavities inlet and pole
Ear cooling cavities liquid outlet forms；The lug groove of up/down perforation, described electricity it is provided with in lug cooling cavities
The edge sealing on monomer top, pond is placed in described lug groove, and lug passes in described lug groove.
A kind of Local cooling battery mould being applicable to flexible packing lithium ion battery the most according to claim 1
Block, it is characterised in that described bottom coohng device is by bottom coohng cavity, bottom coohng cavity inlet and the end
Portion's cooling cavities liquid outlet composition；The cooling groove of up/down perforation, described electricity it is provided with on bottom coohng cavity
Edge sealing bottom the monomer of pond is placed in this cooling groove.
A kind of Local cooling battery mould being applicable to flexible packing lithium ion battery the most according to claim 2
Block, it is characterised in that the material thermal conductivity of described lug cooling cavities is more than 300W/m DEG C；Lug cools down
The outer surface of cavity carries out oxidation processes or coated with thermally conductive insullac.
A kind of Local cooling battery mould being applicable to flexible packing lithium ion battery the most according to claim 3
Block, it is characterised in that the material thermal conductivity of described bottom coohng cavity should be greater than 300W/m DEG C, and bottom is cold
But the outer surface of cavity carries out oxidation processes or coated with thermally conductive insullac.
A kind of Local cooling battery mould being applicable to flexible packing lithium ion battery the most according to claim 2
Block, it is characterised in that coating or the thermal conducting agent filled in described lug groove, described thermal conducting agent be viscosity or
Half stickum.
A kind of Local cooling battery mould being applicable to flexible packing lithium ion battery the most according to claim 3
Block, it is characterised in that coating or the thermal conducting agent filled in described cooling groove, described thermal conducting agent be 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 |
|---|---|
| CN105846011A true CN105846011A (en) | 2016-08-10 |
| CN105846011B CN105846011B (en) | 2018-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 |
Country Status (1)
| Country | Link |
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| CN (1) | CN105846011B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106207072A (en) * | 2016-09-14 | 2016-12-07 | 法乐第(北京)网络科技有限公司 | Set of cells lug cooling structure, set of cells and there is the vehicle of this set of cells |
| 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 |
| CN106711543A (en) * | 2016-12-23 | 2017-05-24 | 惠州市亿能电子有限公司 | Battery module with water-cooling heat dissipation for tabs |
| CN109643768A (en) * | 2016-12-06 | 2019-04-16 | Sk新技术株式会社 | Secondary battery module |
| 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 |
| CN113314756A (en) * | 2020-02-26 | 2021-08-27 | 丰田自动车株式会社 | Bipolar battery and bipolar battery pack |
| WO2021212513A1 (en) * | 2020-04-24 | 2021-10-28 | 东莞新能德科技有限公司 | Battery encapsulation structure |
| WO2022001382A1 (en) * | 2020-06-30 | 2022-01-06 | 比亚迪股份有限公司 | Tab and cell having same, battery module and battery pack |
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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 |
| CN102823023A (en) * | 2010-03-26 | 2012-12-12 | 戴姆勒股份公司 | Battery having a plurality of single cells |
| 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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| 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 |
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Cited By (13)
| 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 |
| CN106207072A (en) * | 2016-09-14 | 2016-12-07 | 法乐第(北京)网络科技有限公司 | Set of cells lug cooling structure, set of cells and there is the vehicle of this set of cells |
| 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 |
| US11245141B2 (en) | 2016-12-06 | 2022-02-08 | Sk Innovation Co., Ltd. | Secondary battery module |
| CN109643768A (en) * | 2016-12-06 | 2019-04-16 | Sk新技术株式会社 | Secondary battery module |
| CN109643768B (en) * | 2016-12-06 | 2022-02-18 | Sk新技术株式会社 | Secondary battery module |
| CN106711543A (en) * | 2016-12-23 | 2017-05-24 | 惠州市亿能电子有限公司 | Battery module with water-cooling heat dissipation for tabs |
| 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 |
| CN113314756A (en) * | 2020-02-26 | 2021-08-27 | 丰田自动车株式会社 | Bipolar battery and bipolar battery pack |
| CN113314756B (en) * | 2020-02-26 | 2024-01-09 | 丰田自动车株式会社 | Bipolar battery and bipolar battery pack |
| WO2021212513A1 (en) * | 2020-04-24 | 2021-10-28 | 东莞新能德科技有限公司 | Battery encapsulation structure |
| WO2022001382A1 (en) * | 2020-06-30 | 2022-01-06 | 比亚迪股份有限公司 | Tab and cell having same, battery module and battery pack |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105846011B (en) | 2018-07-06 |
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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. |