CN202231085U - Tab structure for cylindrical lithium ion battery - Google Patents
Tab structure for cylindrical lithium ion battery Download PDFInfo
- Publication number
- CN202231085U CN202231085U CN2011202894782U CN201120289478U CN202231085U CN 202231085 U CN202231085 U CN 202231085U CN 2011202894782 U CN2011202894782 U CN 2011202894782U CN 201120289478 U CN201120289478 U CN 201120289478U CN 202231085 U CN202231085 U CN 202231085U
- Authority
- CN
- China
- Prior art keywords
- tabs
- lithium ion
- reeling
- lug
- pole piece
- 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 - Fee Related
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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)
- Secondary Cells (AREA)
Abstract
The utility model discloses a tab structure for a cylindrical lithium ion battery. Tabs are distributed on one side of a pole piece at unequal intervals, the designed interval between the tabs gradually increases from the end part of the pole piece to the tail part, the tabs are linearly distributed at the end part of a reeling core after reeling, and the central shaft of the reeling core serves as the symmetry axis. The manufacturing technology of the tabs at unequal intervals is adopted and the tabs are linearly distributed at the end part of the reeling core after reeling, the tab arrangement procedure is omitted, the tab welding procedure is simplified, the production efficiency is improved, the production cost is cut off, both the consistency and security of finished batteries are improved, and the service life of a battery pack is prolonged.
Description
Technical field
The utility model relates to the column lithium ion battery extreme ear structure, relates in particular to a kind of unequal-interval lithium ion cell polar ear structure.
Background technology
Characteristics such as lithium ion battery is high with its voltage, energy density is big, have extended cycle life, self discharge is little, serviceability temperature wide ranges and environmental friendliness and obtain fast development are the remarkable new generation of green high capacity power sources of performance, and prospect is widely used.For column lithium ion, adopt equidistantly of traditional extreme ear structure designed more, and promptly lug equidistantly is distributed in pole piece (collector) side; This simplicity of design, easy to operate, but at follow-up coiling production process, along with the increase of volume core diameter; Lug presents random distribution in volume core end; Increase the follow-up lug arrangement and the difficulty and the complexity of lug welding sequence, and be prone to reduce cycle performance and other electrical property and the security performance of finished product battery, influenced the normal use of battery.
The utility model content
To the problem that above-mentioned column lithium ion battery extreme ear structure design exists, the utility model provides a kind of easy, easy-operating unequal-interval lithium ion cell polar ear structural design.
The technical scheme that the technical problem that the utility model will solve is taked is:
(coiling initiating terminal) sheet afterbody (coiling clearing end) to the utmost point from the pole piece end, lug is the unequal-interval project organization in pole piece one side, and increases gradually from pole piece end to afterbody spacing; This structure can guarantee in follow-up coiling production process; Along with the increase of volume core, lug is linear distribution in volume core end, and is symmetry axis with volume core central shaft; Concrete lug spacing is confirmed according to the volume core diameter, but the back lug linear distribution that must guarantee to reel is in volume core end.Said unequal-interval lithium ion cell polar ear manufacture method can adopt computer program control to carry out.
The beneficial effect of the utility model is:
Adopt unequal-interval lug project organization, the back lug linear distribution of reeling has omitted the lug arranging process in volume core end, has avoided lug arranging process lug to pull apart, put in order problems such as uneven, has guaranteed the consistency that battery is made; At the lug welding sequence, two groups of lugs that only need to be distributed in volume core central shaft both sides concentrate welding to get final product, and have significantly reduced the loaded down with trivial details property of lug welding sequence operation, have improved production efficiency, simultaneously, have reduced energy consumption, have reduced production cost.Said unequal-interval lug project organization, not only simple, and consistency, the fail safe that can improve the finished product battery, prolong the useful life of back battery pack in groups.
Description of drawings
Fig. 1 is the structural representation of the utility model, and 1 is the pole piece end in the drawings, and 2 is the pole piece afterbody, and 3 is lug.
Embodiment
With reference to Fig. 1, the column lithium ion battery of the utility model adopts unequal-interval lug project organization.The lug unequal-interval is distributed in pole piece one side, and to afterbody, spacing increases gradually by the pole piece end, and concrete spacing design to be guaranteeing reeling back lug linear distribution in volume core end, and is that symmetry axis is as the criterion with volume core central shaft.
Claims (1)
1. column lithium ion battery lug project organization, it is characterized in that: lug is the unequal-interval structure distribution in pole piece one side, and spacing is increased by pole piece end to afterbody gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202894782U CN202231085U (en) | 2011-08-09 | 2011-08-09 | Tab structure for cylindrical lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202894782U CN202231085U (en) | 2011-08-09 | 2011-08-09 | Tab structure for cylindrical lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202231085U true CN202231085U (en) | 2012-05-23 |
Family
ID=46081662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202894782U Expired - Fee Related CN202231085U (en) | 2011-08-09 | 2011-08-09 | Tab structure for cylindrical lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202231085U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016187815A1 (en) * | 2015-05-26 | 2016-12-01 | 罗明镜 | Cylindrical high-rate lithium ion battery |
| CN106410104A (en) * | 2016-08-25 | 2017-02-15 | 合肥国轩高科动力能源有限公司 | Cylindrical battery with multiple polar lugs and manufacturing method thereof |
-
2011
- 2011-08-09 CN CN2011202894782U patent/CN202231085U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016187815A1 (en) * | 2015-05-26 | 2016-12-01 | 罗明镜 | Cylindrical high-rate lithium ion battery |
| CN106410104A (en) * | 2016-08-25 | 2017-02-15 | 合肥国轩高科动力能源有限公司 | Cylindrical battery with multiple polar lugs and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhang Yuhua Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Zhang Yuhua Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Zhang Yuhua Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20130809 |