CN205452412U - Compound pole piece of battery module - Google Patents
Compound pole piece of battery module Download PDFInfo
- Publication number
- CN205452412U CN205452412U CN201620162425.7U CN201620162425U CN205452412U CN 205452412 U CN205452412 U CN 205452412U CN 201620162425 U CN201620162425 U CN 201620162425U CN 205452412 U CN205452412 U CN 205452412U
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- Prior art keywords
- pole piece
- thick
- battery
- thin
- width
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- 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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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model relates to a compound pole piece of battery module, including thick pole piece and length and the thin pole piece of thick pole piece assorted, the width of thick pole piece is with the width phase -match of battery top cap and be greater than the width that approaches the pole piece, thick pole piece has been offered a plurality of being used for along its central line and has been carried out the welded guiding hole with the battery top cap, the both sides of guiding hole are equipped with the corresponding hole of dodging of a plurality of and battery positive and negative poles mast respectively, set up a plurality ofly and the corresponding circular slot of guiding hole on the thin pole piece. The utility model discloses a thin, thick pole piece all adopts the aluminium material to make, not only guarantees the conduction sectional area of battery module electric current, avoids the conduction temperature anomaly of pole piece to rise, is equipped with the guiding hole on its surface, dodges hole and circular slot, has guaranteed the welding effect of pole piece with the battery top cap moreover, accords with the lightweight requirement of battery system simultaneously.
Description
Technical field
This utility model belongs to technical field of lithium batteries, is specifically related to a kind of battery modules composite pole piece.
Background technology
At present, rectangular cell module connection pole piece mostly is copper, nickel single pole piece or copper and nickel compound piece.Often there is problems with in copper, nickel single pole piece: pole piece thickness is little, the long-pending deficiency of conduction current cross section, cause pole piece temperature to raise；Pole piece thickness is big, welds instability with battery cap, has rosin joint.Often there is problems with in copper and nickel compound piece: nickel sheet resistivity is big, conduct difference between current；Copper is the biggest with the density of nickel sheet, does not meets the lightweight requirements of battery system.
Utility model content
The purpose of this utility model is to provide a kind of battery modules composite pole piece, both can guarantee that the sectional area that battery modules electric current conducts, and had not the most affected the welding effect with battery cap, meet the lightweight requirements of battery system simultaneously.
For achieving the above object, this utility model have employed techniques below scheme:
A kind of battery modules composite pole piece, the thin pole piece matched with thick pole piece including thick pole piece and length, the described thick width of pole piece matches with the width of battery cap and is more than the width of thin pole piece, described thick pole piece offers multiple pilot hole for carrying out welding with battery cap along its centrage, being respectively provided on two sides with of described pilot hole multiple corresponding with battery plus-negative plate post dodges hole, and described thin pole piece offers multiple circular groove corresponding with pilot hole.
The thickness of described thin pole piece is 0.2～0.4mm.
The thickness of described thick pole piece is 1～3mm.
A diameter of the 8 of described pilot hole～12mm.
The width of described circular groove is 1～2mm, and the internal diameter of described circular groove is 6～8mm.
Described thin pole piece and thick pole piece all use aluminium material to make, and thin pole piece uses with thick pole piece and is welded to connect.
As shown from the above technical solution, composite pole piece of the present utility model is made up of pole piece thin, thick, aluminium material is all used to make, not only ensure that the conductive cross-section of battery modules electric current is amassed, avoid the abnormal rising of transition temperature of pole piece, and ensure the welding effect of pole piece and battery cap, meet the lightweight requirements of battery system simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of thin pole piece of the present utility model；
Fig. 2 is the structural representation of thick pole piece of the present utility model；
Fig. 3 is the structural representation that this utility model thickness pole piece coordinates after installing with thin pole piece.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described further:
As shown in Figures 1 to 3, the battery modules composite pole piece of the present embodiment, the thin pole piece 1 matched with thick pole piece 2 including thick pole piece 2 and length, the thick width of pole piece 2 matches with the width of battery cap and is more than the width of thin pole piece 1, thick pole piece 2 offers multiple pilot hole 21 for carrying out welding with battery cap along its centrage, being respectively provided on two sides with of pilot hole 21 multiple corresponding with battery plus-negative plate post dodges hole 22, this dodges hole 22 can avoid battery electrode column, enables battery to fit with thick pole piece 2.Offering multiple circular groove 11 corresponding with pilot hole 21 on thin pole piece 1, this circular groove 11 is the welding region with battery cap.In the present embodiment, thin pole piece 1 uses with thick pole piece 2 and is welded to connect.When welding, thin pole piece 1 is welded with battery cap by circular groove 11.
Owing to the thick pole piece 2 in composite pole piece need not and welding battery, its thickness can be accomplished sufficiently large, it is ensured that enough conducts the electric current of battery modules；Thin pole piece 1 only needs the electric current of conducting monomers battery, and its thickness can be accomplished sufficiently thin little, is conducive to and the welding of battery cap；Pole piece thin, thick in composite pole piece is aluminium material, owing to the density of aluminum is less than the density of copper, nickel, alleviates the weight of pole piece, meets the lightweight requirements of battery system.In the present embodiment, the thickness of thin pole piece 1 is 0.2～0.4mm, and the thickness of thick pole piece 2 is 1～3mm, and a diameter of the 8 of pilot hole 21～12mm, the width of circular groove 11 is 1～2mm, and circular groove internal diameter is 6～8mm.
Embodiment described above is only to be described preferred implementation of the present utility model; not scope of the present utility model is defined; on the premise of without departing from this utility model design spirit; various deformation that the technical solution of the utility model is made by those of ordinary skill in the art and improvement, all should fall in the protection domain that this utility model claims determine.
Claims (6)
1. a battery modules composite pole piece, it is characterized in that: include the thin pole piece (1) that thick pole piece (2) and length match with thick pole piece (2), the described thick width of pole piece (2) matches with the width of battery cap and is more than the width of thin pole piece (1), described thick pole piece (2) offers multiple pilot hole (21) for carrying out welding with battery cap along its centrage, being respectively provided on two sides with of described pilot hole (21) multiple corresponding with battery plus-negative plate post dodges hole (22), multiple circular groove (11) corresponding with pilot hole (21) is offered on described thin pole piece (1).
Battery modules composite pole piece the most according to claim 1, it is characterised in that: the thickness of described thin pole piece (1) is 0.2～0.4mm.
Battery modules composite pole piece the most according to claim 1, it is characterised in that: the thickness of described thick pole piece (2) is 1～3mm.
Battery modules composite pole piece the most according to claim 1, it is characterised in that: a diameter of the 8～12mm of described pilot hole (21).
Battery modules composite pole piece the most according to claim 1, it is characterised in that: the width of described circular groove (11) is 1～2mm, and the internal diameter of circular groove is 6～8mm.
Battery modules composite pole piece the most according to claim 1, it is characterised in that: described thin pole piece (1) and thick pole piece (2) all use aluminium material to make, and thin pole piece (1) uses with thick pole piece (2) and is welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620162425.7U CN205452412U (en) | 2016-03-03 | 2016-03-03 | Compound pole piece of battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620162425.7U CN205452412U (en) | 2016-03-03 | 2016-03-03 | Compound pole piece of battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205452412U true CN205452412U (en) | 2016-08-10 |
Family
ID=56604934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620162425.7U Active CN205452412U (en) | 2016-03-03 | 2016-03-03 | Compound pole piece of battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205452412U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110024165A (en) * | 2016-10-14 | 2019-07-16 | 伊奈维特有限责任公司 | The contact plate of the joint connections electrically engaged is established with the terminal of at least one set of battery unit in battery module including at least one |
-
2016
- 2016-03-03 CN CN201620162425.7U patent/CN205452412U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110024165A (en) * | 2016-10-14 | 2019-07-16 | 伊奈维特有限责任公司 | The contact plate of the joint connections electrically engaged is established with the terminal of at least one set of battery unit in battery module including at least one |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170104 Address after: 266600 Qingdao Province, Laixi City, Jiang Shan town, new energy road, No. 3 Patentee after: Qingdao Xuan Battery Co., Ltd. Address before: Dai River Road New District of Hefei City, Anhui province 230011 No. 599 Patentee before: Hefei Guoxuan High-Tech Power Energy Co., Ltd. |