CN107425168B - Lithium ion battery pack and manufacturing method thereof - Google Patents
Lithium ion battery pack and manufacturing method thereof Download PDFInfo
- Publication number
- CN107425168B CN107425168B CN201710742952.4A CN201710742952A CN107425168B CN 107425168 B CN107425168 B CN 107425168B CN 201710742952 A CN201710742952 A CN 201710742952A CN 107425168 B CN107425168 B CN 107425168B
- Authority
- CN
- China
- Prior art keywords
- plate
- battery
- bus
- battery pack
- lithium ion
- 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.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses a lithium ion battery pack and a manufacturing method thereof, wherein the lithium ion battery pack comprises a plurality of battery cores, a bus plate and a fixed support plate; the bus plate is provided with lower grooves with upward openings, the number of which is equal to that of the battery cells; the fixed support plate is provided with upper grooves with downward openings, the number of which is equal to that of the battery cells; the bottoms of the multiple electric cores are respectively inserted into the multiple lower grooves of the bus plate in an adaptive manner, the tops of the multiple electric cores are respectively inserted into the multiple upper grooves of the fixed support plate in an adaptive manner, and the electric cores are fixed in the middle through the fixed support plate and the bus plate. It has the following advantages: the heat of the battery cells of the battery pack is absorbed in a mutually balanced manner, the heat balance of the single battery cells is effectively controlled, the current uniformly passes through the single battery cells, the current and the temperature of the battery pack are ensured to be uniform in the use process, the influence on the product performance and the service life of the whole battery pack due to short circuit or heat dissipation of the single battery cells is avoided, the battery pack has good electric conduction and heat conduction properties, and the service life, the safety and the product quality level of the battery are improved.
Description
Technical Field
The invention relates to the technical field of lithium ion battery packs, in particular to a lithium ion battery pack and a manufacturing method thereof.
Background
Along with the continuous improvement of the capacity of the lithium ion battery, the application field of the lithium ion battery is expanded continuously. Therefore, the requirements on the application safety and other performances are more stringent, and the manufacturing process of the lithium ion battery pack is promoted to be continuously updated and improved.
The battery pack is a basic unit formed by the battery pack, and the design or manufacturing process of the battery pack affects the application effect of the battery pack. The traditional battery module is mainly formed by fixing an electric core through a bus plate, such as CN104157899A or CN103311490B, and then assembling and spot welding the electric core with a plastic bracket. However, it has the following problems: (1) The nickel strap on the bus plate and the battery cell are subjected to spot welding, so that large current caused by internal and external short circuits of the battery cell cannot be protected, and the more the battery cells are assembled, the more dangerous the battery pack is further synthesized, so that potential safety hazards exist in the working process of the battery pack; (2) Defects such as false welding, explosion welding and the like generated by adopting resistance welding have no effective detection method in the prior art, and the defects can influence the performance of the power battery module; (3) The strength and the hardness of the plastic support are insufficient, and the assembled battery module has low safety performance.
Disclosure of Invention
The invention provides a lithium ion battery pack and a manufacturing method thereof, which overcome the defects of the lithium ion battery pack and the manufacturing method thereof in the background technology.
One of the adopted technical schemes for solving the technical problems is as follows:
the lithium ion battery pack comprises a plurality of battery cells, a bus plate and a fixed support plate; the bus plate is provided with lower grooves with upward openings, the number of which is equal to that of the battery cells; the fixed support plate is provided with upper grooves with downward openings, the number of which is equal to that of the battery cells; the bottoms of the multiple electric cores are respectively inserted into the multiple lower grooves of the bus plate in an adaptive manner, the tops of the multiple electric cores are respectively inserted into the multiple upper grooves of the fixed support plate in an adaptive manner, and the electric cores are fixed in the middle through the fixed support plate and the bus plate.
In a preferred embodiment: the upper grooves are arranged in an array manner, and the upper grooves of every two left and right adjacent columns are distributed in a staggered manner.
In a preferred embodiment: the fixed support plates and the bus plates are made of heat conducting materials.
In a preferred embodiment: the fixed support plate comprises a plate body and a cover plate, wherein through holes with the same number as the battery cells are formed in the plate body, the cover plate is connected onto the plate body in a covering mode, the through holes form the upper groove, and hollowed-out buckles are arranged at positions of the cover plate corresponding to the through holes.
In a preferred embodiment: the bottom of the battery cell and the bus plate are fixed through laser welding, and the top of the battery cell and the fixed support plate are fixed through laser welding.
In a preferred embodiment: the bottom of the battery cell and the bus plate are fixed through laser welding, and the top of the battery cell and the cover plate are fixed through laser welding.
In a preferred embodiment: the side wall of the cover plate is fixedly connected with a side plate, and the side plate is abutted against the side wall of the plate body and fixedly connected with the side plate and the side wall of the plate body.
The second technical scheme adopted for solving the technical problems is as follows:
the manufacturing method of the lithium ion battery pack comprises the following steps:
step 1, preparing a plurality of battery cores, a bus plate, a plate body and a cover plate;
step 2, nesting the first poles of all the battery cores in the lower grooves of the bus plate;
step 3, sleeving and clamping second poles of all the battery cells by using through holes of the plate body;
and 4, laser welding the battery core and the bus plate, and fixedly connecting the cover plate and the plate body with the hollow buckle by the laser welding battery core.
The third technical scheme adopted for solving the technical problems is as follows:
the manufacturing method of the lithium ion battery pack comprises the following steps:
step 1, preparing a plurality of battery cores, a bus plate, a plate body and a cover plate;
step 2, nesting the first poles of all the battery cells in the lower groove of the bus plate, and welding the battery cells and the bus plate by laser;
step 3, sleeving and clamping second poles of all the battery cells by using through holes of the plate body, and welding the battery cells and the hollowed-out buckles by using laser;
and 4, fixedly connecting a side plate of the cover plate and the side wall of the plate body.
Compared with the background technology, the technical proposal has the following advantages:
1. the bottoms of the battery cells are respectively inserted into the lower grooves of the bus plate in an adaptive manner, the tops of the battery cells are respectively inserted into the upper grooves of the fixed support plate in an adaptive manner, the battery cells are fixed in the middle through the fixed support plate and the bus plate, so that the heat of the battery cells of the battery pack is absorbed in a balanced manner, the heat balance of the battery cells is effectively controlled, the current uniformly passes through the battery cells, the current and the temperature of the battery pack are ensured to be uniform in the use process, the influence on the product performance and the service life of the whole battery pack due to short circuit or heat dissipation of the battery cells is avoided, the battery pack has good electric conduction and heat conduction properties, the service life, the safety and the product quality level of the battery are improved, the manufacturing procedures of the battery pack are reduced, and the manufacturing process technology is improved. The electric cores are spaced through the grooves, and heat dissipation is good. The cell steel shell is in direct contact with the bus body, and the cell is adopted without sleeving a thermal shrinkage sleeve film, so that the production cost of the cell is reduced.
2. The top of each battery cell is correspondingly provided with a hollowed-out buckle, the inside and the outside of the battery cell are abnormal in the use process of the battery pack, the hollowed-out buckle between the fixed support plate and the connection of the battery cell can be directly fused, and the influence of the internal and external short circuit, thermal runaway and other problems of the single battery cell on the performance of the whole battery pack is avoided.
3. The invention avoids uneven temperature distribution of each battery cell, and forms a soaking system as much as possible under the working state of the battery pack, thereby improving the stability of the battery pack. The invention mainly creatively improves the integral heat dissipation structure of the battery pack. The heat productivity and heat dissipation state of each cell in the existing battery pack are different, so that the temperature of each cell in the battery pack is different, and when the temperature of one or some cells is too high, the cell is easy to burn or the service life is reduced. The battery pack optimizes the whole heat dissipation structure, avoids local overhigh temperature, and the internal battery cells can rapidly transfer heat to the peripheral battery cells or the bus plates and the like through the use of the heat conducting material. Thereby forming the battery cells into an organic whole.
Drawings
The invention is further described below with reference to the drawings and examples.
Fig. 1 is a perspective view of a lithium ion battery pack of the present invention.
Fig. 2 is an exploded perspective view of the lithium ion battery pack of the present invention.
Fig. 3 is a schematic diagram of a circuit connection structure of the lithium ion battery pack of the present invention.
Fig. 4 is a circuit diagram of the lithium ion battery pack of the present invention.
Fig. 5 is a schematic perspective view of a bus plate according to an embodiment of the invention.
Fig. 6 is a schematic perspective view of a second bus plate according to an embodiment of the invention.
Fig. 7 is a schematic structural diagram of a hollow buckle according to an embodiment of the invention.
Fig. 8 is a schematic structural diagram of a three-hollow buckle according to an embodiment of the present invention.
Detailed Description
Referring to fig. 1 and 2, the lithium ion battery pack includes a plurality of battery cells 10, a bus plate 20 and a fixed support plate 30; the bus plate 20 is provided with upward lower grooves 21 with openings equal to the number of the battery cells 10; the fixed support plate 30 is provided with upper grooves 31 with downward openings, the number of which is equal to that of the battery cells 10; the bottoms of the plurality of battery cells 10 are respectively inserted into the plurality of lower grooves 21 of the bus plate 20 in an adapting way, the tops of the plurality of battery cells 10 are respectively inserted into the plurality of upper grooves 31 of the fixed support plate 30 in an adapting way, and the battery cells 10 are fixed in the middle through the fixed support plate 30 and the bus plate 20.
The upper groove and the lower groove are respectively matched with the top and the bottom of the battery cell, and the matching is identical in structure. In this embodiment, the fixing bracket plate 30 and the bus plate 20 are made of a heat conductive material, and a metal material or a phase change material is preferably selected. The upper grooves are arranged in an array manner, and the upper grooves of every two adjacent columns are staggered, namely, the grooves on two columns of one column at the middle interval are aligned, and the upper grooves of the two adjacent columns are staggered along the front and back direction.
Further, the fixed support plate 30 includes a plate body 32 and a cover plate 33, the plate body 32 is provided with through holes equal to the number of the battery cells 10, the cover plate 33 is covered on the plate body 32, the through holes form the upper groove 31, and each position of the cover plate 33 corresponding to the through hole is provided with a hollow buckle 34. Further, the bottom of the battery cell 10 and the bottom of the lower groove 21 of the busbar 20 are fixed by laser welding, and the top of the battery cell 10 and the hollow buckle 34 of the cover plate 33 are fixed by laser welding. Further, the side wall of the cover 33 is fixedly connected with a side plate 35, the side plate 35 is abutted against the side wall of the plate 32 and fixedly connected with the side plate 35 and the side wall of the plate 32, for example, fixedly connected by screws. It should be noted that laser welding is used in the present invention, and other welding methods may be used as needed.
Referring to fig. 3 and 4, the battery cells 10 in the battery pack are connected in parallel by a circuit; the concrete structure is as follows: the fixed support plate 30 is provided with a conductive connecting sheet 40, and the anodes of all the battery cells 10 are connected through the conductive connecting sheet 40 to serve as the anodes of the whole battery pack; the bus plate 20 is made of a material with good electric conduction and heat conduction properties, and is connected with the cathodes of all the battery cells 10 to serve as the cathodes of the whole battery pack. The maximum overcurrent is limited by controlling the width and the thickness of the conductive connecting sheet 40, once the battery cell has fault short circuit and overlarge current, the battery cell is fused in a very short time, namely, the connection between the fault battery cell and other battery cells is cut off, so that the risk is reduced to the minimum; because the bus plate 20 has excellent heat conduction properties, heat generated from each cell can be diffused to the entire bus plate at an extremely high speed and then dissipated to the air through the outer surface.
Example 1
As a preferred mode: referring to fig. 1 and 2, the battery pack is in an up-down structure, the battery core 10 is in a cylindrical structure, the lower groove 21 of the bus plate 20 is in a cylindrical groove, the bus plate 20 is shown in fig. 5, the hollow buckle 34 is shown in fig. 7, the cover plate 33 is provided with a circular area, two bending through grooves 341 which are symmetrically arranged relative to the center of the circle are arranged in the circular area, the openings of the two bending through grooves 341 are arranged in a facing way and are arranged at intervals, the rest part of the circular area between the two bending through grooves 341 forms the hollow buckle 34, the hollow buckle 34 is provided with a strip through groove 342 positioned at the center of the circle and four rotary through grooves 343, and the four rotary through grooves 343 are symmetrically arranged at two sides of the strip through groove 342; the hollow buckle 34 is provided with two matching grooves 346 corresponding to the bending positions of the two bending through grooves 341 respectively. The connecting part of the hollowed-out buckle and the battery core has a certain telescopic space, so that an anti-vibration effect is achieved, and the risk of welding and welding off caused by vibration of the traditional battery core in use is effectively avoided.
The method for manufacturing the battery pack comprises the following steps:
step 1, preparing a plurality of battery cells 10, a bus plate 20, a plate body 32 and a cover plate 33;
step 2, nesting the cathodes of all the battery cells 10 in the lower groove 21 of the busbar 20;
step 3, sleeving and clamping the anodes of all the battery cells 10 by using the through holes of the plate body 32;
step 4, the battery cell 10 and the bus plate 20 are welded by laser, the battery cell 10 and the hollowed-out buckle 34 are welded by laser, the side plate 35 of the cover plate 33 and the side wall of the plate body 32 are fixedly connected, and the battery cell 10 and the fixed support plate 30 are fixedly connected by adopting the hollowed-out buckle 34.
The battery pack obtained by the combination has the effects of heat conduction, soaking, heat dissipation, current equalization and the like, and the temperature of the battery pack is controlled to be 50+/-2 ℃.
Example two
As a preferred mode: similar to the one shown in fig. 1 and 2, the battery pack has a top-middle-bottom structure, which is different from the embodiment in that: the cell 10 has a square structure, the lower groove 21 of the bus plate 20 has a square groove, and the bus plate 20 is shown in fig. 6. The battery pack obtained by the combination has the effects of heat conduction, soaking, heat dissipation, current equalization and the like, and the temperature of the battery pack is controlled to be 50+/-2 ℃.
Example III
As a preferred mode: as shown in fig. 1 and 2, the battery pack has a top-middle-bottom structure, which is different from the embodiment in that: as shown in fig. 7, the hollow buckle 34 is provided with a circular area, the circular area is provided with two crescent through grooves 344 which are symmetrically arranged relative to the center of the circle, the openings of the two crescent through grooves 344 are arranged in a facing manner, the rest part of the circular area between the two crescent through grooves 344 forms the hollow buckle 34, the hollow buckle 34 is provided with a long strip through groove 342 positioned at the center of the circle and four rotary through grooves 343, and the four rotary through grooves 343 are symmetrically arranged at two sides of the long strip through groove 342; the hollow buckle 34 is provided with a plurality of circular arc grooves 345 which are annularly arranged at intervals relative to the circle center. The connecting part of the hollowed-out buckle and the battery core has a certain telescopic space, so that an anti-vibration effect is achieved, and the risk of welding and welding off caused by vibration of the traditional battery core in use is effectively avoided.
The battery pack obtained by the combination has the effects of heat conduction, soaking, heat dissipation, current equalization and the like, and the temperature of the battery pack is controlled to be 50+/-2 ℃.
The foregoing description is only illustrative of the preferred embodiments of the present invention, and therefore should not be taken as limiting the scope of the invention, for all changes and modifications that come within the meaning and range of equivalency of the claims and specification are therefore intended to be embraced therein.
Claims (9)
1. A lithium ion battery pack comprising a plurality of cells, characterized in that: the device also comprises a bus plate and a fixed support plate; the bus plate is provided with lower grooves with upward openings, the number of which is equal to that of the battery cells; the fixed support plate is provided with upper grooves with downward openings, the number of which is equal to that of the battery cells; the bottoms of the multiple electric cores are respectively inserted into the multiple lower grooves of the bus plate in an adaptive manner, the tops of the multiple electric cores are respectively inserted into the multiple upper grooves of the fixed support plate in an adaptive manner, and the electric cores are fixed in the middle through the fixed support plate and the bus plate.
2. A lithium ion battery according to claim 1, wherein: the upper grooves are arranged in an array manner, and the upper grooves of every two left and right adjacent columns are distributed in a staggered manner.
3. A lithium ion battery according to claim 1, wherein: the fixed support plates and the bus plates are made of heat conducting materials.
4. A lithium ion battery according to claim 1 or 2 or 3, wherein: the fixed support plate comprises a plate body and a cover plate, wherein through holes with the same number as the battery cells are formed in the plate body, the cover plate is connected onto the plate body in a covering mode, the through holes form the upper groove, and hollowed-out buckles are arranged at positions of the cover plate corresponding to the through holes.
5. A lithium ion battery according to claim 1 or 2 or 3, wherein: the bottom of the battery cell and the bus plate are fixed through laser welding, and the top of the battery cell and the fixed support plate are fixed through laser welding.
6. The lithium ion battery pack of claim 4, wherein: the bottom of the battery cell and the bus plate are fixed through laser welding, and the top of the battery cell and the cover plate are fixed through laser welding.
7. The lithium ion battery pack of claim 4, wherein: the side wall of the cover plate is fixedly connected with a side plate, and the side plate is abutted against the side wall of the plate body and fixedly connected with the side plate and the side wall of the plate body.
8. The method of manufacturing a lithium ion battery pack according to claim 4, wherein: it comprises the following steps:
step 1, preparing a plurality of battery cores, a bus plate, a plate body and a cover plate;
step 2, nesting the first poles of all the battery cores in the lower grooves of the bus plate;
step 3, sleeving and clamping second poles of all the battery cells by using through holes of the plate body;
and 4, laser welding the battery core and the bus plate, and fixedly connecting the cover plate and the plate body with the hollow buckle by the laser welding battery core.
9. The method of manufacturing a lithium ion battery pack according to claim 7, wherein: it comprises the following steps:
step 1, preparing a plurality of battery cores, a bus plate, a plate body and a cover plate;
step 2, nesting the first poles of all the battery cells in the lower groove of the bus plate, and welding the battery cells and the bus plate by laser;
step 3, sleeving and clamping second poles of all the battery cells by using through holes of the plate body, and welding the battery cells and the hollowed-out buckles by using laser;
and 4, fixedly connecting a side plate of the cover plate and the side wall of the plate body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710742952.4A CN107425168B (en) | 2017-08-25 | 2017-08-25 | Lithium ion battery pack and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710742952.4A CN107425168B (en) | 2017-08-25 | 2017-08-25 | Lithium ion battery pack and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107425168A CN107425168A (en) | 2017-12-01 |
| CN107425168B true CN107425168B (en) | 2023-05-16 |
Family
ID=60434358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710742952.4A Active CN107425168B (en) | 2017-08-25 | 2017-08-25 | Lithium ion battery pack and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107425168B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108470869A (en) * | 2018-05-29 | 2018-08-31 | 深圳市统凌科技有限公司 | A kind of combined electrical core support structure |
| CN111029658A (en) * | 2019-09-20 | 2020-04-17 | 杭州乾代科技有限公司 | Manufacturing method of lithium battery module |
| CN111540944A (en) * | 2019-09-20 | 2020-08-14 | 杭州乾代科技有限公司 | Assembled lithium battery module |
| CN111607362A (en) * | 2020-07-01 | 2020-09-01 | 广东工业大学 | Preparation method of high-thermal-conductivity flexible phase change material and battery module |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867049A (en) * | 2010-06-17 | 2010-10-20 | 惠州亿纬锂能股份有限公司 | Lithium battery |
| CN104659402A (en) * | 2015-02-05 | 2015-05-27 | 杨小丽 | Power battery bunching module structure of electric automobile |
| CN205752344U (en) * | 2016-05-12 | 2016-11-30 | 深圳市沃特玛电池有限公司 | Electrokinetic cell module |
| CN207250597U (en) * | 2017-08-25 | 2018-04-17 | 福建猛狮新能源科技有限公司 | A kind of Li-ion batteries piles |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10343527B2 (en) * | 2014-01-20 | 2019-07-09 | Murata Manufacturing Co., Ltd. | Cell, cell pack, electronic device, electric vehicle, electricity storage apparatus, and power system |
-
2017
- 2017-08-25 CN CN201710742952.4A patent/CN107425168B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867049A (en) * | 2010-06-17 | 2010-10-20 | 惠州亿纬锂能股份有限公司 | Lithium battery |
| CN104659402A (en) * | 2015-02-05 | 2015-05-27 | 杨小丽 | Power battery bunching module structure of electric automobile |
| CN205752344U (en) * | 2016-05-12 | 2016-11-30 | 深圳市沃特玛电池有限公司 | Electrokinetic cell module |
| CN207250597U (en) * | 2017-08-25 | 2018-04-17 | 福建猛狮新能源科技有限公司 | A kind of Li-ion batteries piles |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107425168A (en) | 2017-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107425168B (en) | Lithium ion battery pack and manufacturing method thereof | |
| EP3460878B1 (en) | Battery pack | |
| US10978689B2 (en) | Battery pack | |
| KR101106544B1 (en) | Cell cartridge | |
| KR102396361B1 (en) | Battery pack | |
| EP2615666B1 (en) | Battery pack with high output and large capacity | |
| KR101805559B1 (en) | Strip of electrochemical cells for the production of a battery module for an electric or hybrid vehicle, and method for the production of such a module | |
| JP6295901B2 (en) | Power storage device | |
| US20110039142A1 (en) | Battery pack with improved heat dissipation efficiency | |
| KR200493175Y1 (en) | Battery busbar | |
| KR102117859B1 (en) | Battery module | |
| JP2011096660A (en) | Secondary battery | |
| KR101312425B1 (en) | Secondary battery pack and connector utilized therein | |
| KR20110134750A (en) | Battery pack | |
| CN207250597U (en) | A kind of Li-ion batteries piles | |
| JPWO2015155919A1 (en) | Battery block and battery module | |
| KR20190016691A (en) | Cell module and its manufacturing method | |
| KR20210073887A (en) | Battery pack | |
| JP2022549321A (en) | Battery modules, battery packs and automobiles with busbars | |
| JP2020095777A (en) | Battery pack | |
| US20200243809A1 (en) | A battery module casing, a battery module and a battery | |
| KR102211369B1 (en) | Battery Module | |
| CN106450128A (en) | Battery group and electrode current piece thereof | |
| US11677119B2 (en) | Secondary battery | |
| KR101712449B1 (en) | A hollow-shaped jelly roll tap plate assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |