CN203659970U - Battery module - Google Patents
Battery module Download PDFInfo
- Publication number
- CN203659970U CN203659970U CN201320793686.5U CN201320793686U CN203659970U CN 203659970 U CN203659970 U CN 203659970U CN 201320793686 U CN201320793686 U CN 201320793686U CN 203659970 U CN203659970 U CN 203659970U
- Authority
- CN
- China
- Prior art keywords
- battery unit
- lug
- welding groove
- welding
- brace
- 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.)
- Expired - Lifetime
Links
- 238000003466 welding Methods 0.000 claims abstract description 40
- 210000002421 cell wall Anatomy 0.000 claims description 5
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 230000007306 turnover Effects 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
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
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model provides a battery module. The battery module comprises a battery unit with pole lugs and a connecting sheet, wherein the pole lugs of the battery unit are fixed on the connecting sheet. The battery module is characterized in that a plurality of welding grooves are formed in the connecting sheet; the width of each welding groove is approximately equal to the thickness of each pole lug of the battery unit; the length of each welding groove is approximately equal to the width of each pole lug of the battery unit; the pole lugs of the battery unit are extended into the welding groove and are directly welded on the groove walls of the welding grooves. A connecting mode different from that in the prior art is adopted by the battery module, so that the battery module has the large current passing capacity; meanwhile, the resistance of the connecting sheet is decreased so as to reduce the heating quantity.
Description
Technical field
The utility model discloses a kind of lithium ionic cell module.
Background technology
Soft package lithium battery is conventionally by more piece battery core combination serial connection, and every economize on electricity core is provided with positive pole ear and negative lug, and when more piece battery core is connected in series, positive pole ear, the negative lug of adjacent two battery cores are connected successively.Positive pole ear, the negative lug of existing soft package lithium battery connect by brace, be specially, multiple welding grooves are set on brace, the width of welding groove and length are all greater than width and the length of lug, and lug stretched out from groove to rear turnover and be finally welded on brace, this connected mode possesses the advantage of stable connection, but has also brought other shortcomings thereupon.
Because lug is to stretch out rear turnover from welding groove on brace, the fixation procedure of lug and brace comprises turnover operation and welding operation, and efficiency of assembling is low; And the consideration that existing welding groove therefrom stretches out in being convenient to lug, stock size is larger, makes like this surface area of brace reduce, and has limited the electric current handling capacity of brace, further makes brace caloric value large, easily causes thermal runaway.
Application number is the patent of CN201220464076.6, disclose a kind of the utility model a kind of soft package lithium battery is provided, and a kind of brace structure is disclosed, on brace, be provided with lug pad, on this lug pad, have bar-shaped trough, the length of bar-shaped trough matches with the width of positive pole ear, negative lug, although do not mention the problem of lug turnover, but because lug pad is arranged on brace, must can be welded on lug pad through the turnover of lug.
Utility model content
The purpose of this utility model is to overcome the shortcoming and defect of above-mentioned prior art, a kind of battery module is provided, comprise battery unit and brace, the lug of described battery unit is fixed on brace, several welding grooves are set on described brace, the width of described welding groove approximates the thickness of battery unit lug, and the length of welding groove approximates the width of battery unit lug, and described battery unit lug stretches into welding groove and is directly welded on the cell wall of welding groove.
The width of welding groove approximates the thickness of battery unit lug, and the length of welding groove approximates the width of battery unit lug, has ensured that battery supply lug just can insert in welding groove, retains to greatest extent the surface area of brace to increase electric current handling capacity; Battery unit lug stretch into use after welding groove Laser Welding by battery unit tab welding on the cell wall of welding groove, what both ensured to connect is firm, has simplified again installation step.
The top of described battery unit lug does not exceed the height of welding groove, and as preferably, the top of described battery unit lug and welding groove maintain an equal level.
The topmost of battery unit lug is flushed with brace setting, be convenient to assembling, can prevent from contacting with the miscellaneous part in battery case, avoid short circuit.
Use after the technical solution of the utility model, the welding groove of redesign makes brace possess large electric current handling capacity, and by tab welding on the welding groove cell wall of brace, what ensured to connect is firm, has simplified again installation step.
Brief description of the drawings
Fig. 1 is the structural representation of battery module.
Wherein, 1. battery module, 2. welding groove.
embodiment
As shown in Figure 1, the battery module that the utility model provides comprises battery unit and brace, brace is made up of aluminium flake, battery unit possesses positive pole ear and negative lug, several welding grooves are set on brace, the width of welding groove approximates the thickness of battery unit lug, the length of welding groove approximates the width of battery unit lug, battery unit lug stretch into use after welding groove Laser Welding by battery unit tab welding on the cell wall of welding groove, and the top of battery unit lug is fair with welding groove.
Claims (2)
1. a battery module, comprise battery unit and brace, the lug of described battery unit is fixed on brace, it is characterized in that: several welding grooves are set on described brace, the width of described welding groove approximates the thickness of battery unit lug, the length of welding groove approximates the width of battery unit lug, and described battery unit lug stretches into welding groove and is directly welded on the cell wall of welding groove.
2. battery module according to claim 1, is characterized in that: the top of described battery unit lug and welding groove maintain an equal level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320793686.5U CN203659970U (en) | 2013-12-04 | 2013-12-04 | Battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320793686.5U CN203659970U (en) | 2013-12-04 | 2013-12-04 | Battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203659970U true CN203659970U (en) | 2014-06-18 |
Family
ID=50926324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320793686.5U Expired - Lifetime CN203659970U (en) | 2013-12-04 | 2013-12-04 | Battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203659970U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104659304A (en) * | 2015-02-11 | 2015-05-27 | 天地融科技股份有限公司 | Electronic equipment and battery connecting method |
| CN111180633A (en) * | 2020-02-25 | 2020-05-19 | 四川国创成电池材料有限公司 | Laminate polymer battery module and consumer |
| CN111200086A (en) * | 2020-02-25 | 2020-05-26 | 四川国创成电池材料有限公司 | Modularization laminate polymer battery group and consumer |
| CN111244354A (en) * | 2020-02-25 | 2020-06-05 | 四川国创成电池材料有限公司 | Soft packet of lithium cell and consumer |
| CN111293270A (en) * | 2020-02-25 | 2020-06-16 | 四川国创成电池材料有限公司 | Battery core tab connection structure, soft-packaged battery, electric equipment, electric vehicle and power station |
-
2013
- 2013-12-04 CN CN201320793686.5U patent/CN203659970U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104659304A (en) * | 2015-02-11 | 2015-05-27 | 天地融科技股份有限公司 | Electronic equipment and battery connecting method |
| CN104659304B (en) * | 2015-02-11 | 2018-01-09 | 天地融科技股份有限公司 | Electronic equipment and cell connecting method |
| CN111180633A (en) * | 2020-02-25 | 2020-05-19 | 四川国创成电池材料有限公司 | Laminate polymer battery module and consumer |
| CN111200086A (en) * | 2020-02-25 | 2020-05-26 | 四川国创成电池材料有限公司 | Modularization laminate polymer battery group and consumer |
| CN111244354A (en) * | 2020-02-25 | 2020-06-05 | 四川国创成电池材料有限公司 | Soft packet of lithium cell and consumer |
| CN111293270A (en) * | 2020-02-25 | 2020-06-16 | 四川国创成电池材料有限公司 | Battery core tab connection structure, soft-packaged battery, electric equipment, electric vehicle and power station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 313000 Huzhou economic and Technological Development Zone, Zhejiang, Hung Fung Road, No. 2198 Patentee after: MICROVAST POWER SYSTEMS Co.,Ltd. Address before: 313000 Zhejiang Province, Huzhou City Road No. 1555 sunny Industrial Park 1 Patentee before: MICROVAST POWER SYSTEMS Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |