CN203932197U - A kind of lithium ion battery cell - Google Patents
A kind of lithium ion battery cell Download PDFInfo
- Publication number
- CN203932197U CN203932197U CN201420245289.9U CN201420245289U CN203932197U CN 203932197 U CN203932197 U CN 203932197U CN 201420245289 U CN201420245289 U CN 201420245289U CN 203932197 U CN203932197 U CN 203932197U
- Authority
- CN
- China
- Prior art keywords
- flanging
- negative
- pole
- negative pole
- positive
- 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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Classifications
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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
Abstract
A kind of lithium ion battery cell, comprise positive plate, negative plate, anode ear and negative electrode lug, described positive plate head is provided with the empty paper tinsel of positive pole of uncoated positive electrode active materials, the empty foil edge of described positive pole is provided with flanging, described anode ear is welded on described anodal flanging, described negative plate head is provided with the empty paper tinsel of negative pole of uncoated negative active core-shell material, and the empty foil edge of described negative pole is provided with flanging, and described negative pole lug welding is on described negative pole flanging.The battery designing and producing out of pole piece flanging both can reduce the internal resistance increasing because of the horizontal nickel bar of transferring, and can use with a baffle by many moneys battery again, cost-saving and minimizing baffle kind; Can also avoid indivedual cell widths excessive, the problem that common process top weldering centre-to-centre spacing very greatly cannot Over-The-Counter partial volume; Can also reduce in labor hour and process because of manual operation cause bad, increase the consistency of product, improve the volume energy density of battery.
Description
Technical field
The utility model relates to lithium ion battery, especially a kind of lithium ion battery cell.
Background technology
The trend of global environmental protection in recent years, energy-conservation and green manufacturing, brought up the market business opportunity of small-sized secondary batteries, various emerging portable electronic products being developed like the mushrooms after rain, the downstream application product of lithium battery also thereby more and more broadness and diversification, especially flourish with mobile phone, 3C electronic product, and emphasize that, under the development trend of slimming, lightness and multifunction, lithium ion battery is adopted in a large number.Lithium ion battery is generally by winding process moulding, is welded with anode ear on positive plate, is welded with negative electrode lug on negative plate, and after positive plate and negative plate coiling and molding, the centre-to-centre spacing between anode ear and negative electrode lug will be determined.Because the centre-to-centre spacing between battery pole ear is difficult to determine before coiling, the positive plate of employing traditional structure and negative plate are after coiling and molding, and battery pole ear centre-to-centre spacing error is larger, and the product quality causing is uneven.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of lithium ion battery cell, can adjust centre-to-centre spacing between lug according to the difference of different clients' requirement or internal process, can reduce in labor hour and process because of manual operation cause bad, increase the consistency of product, improve the volume energy density of battery.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of lithium ion battery cell, comprise positive plate, negative plate, anode ear and negative electrode lug, described positive plate head is provided with the empty paper tinsel of positive pole of uncoated positive electrode active materials, the empty foil edge of described positive pole is provided with flanging, described anode ear is welded on described anodal flanging, described negative plate head is provided with the empty paper tinsel of negative pole of uncoated negative active core-shell material, the empty foil edge of described negative pole is provided with flanging, and described negative pole lug welding is on described negative pole flanging.The battery designing and producing out of pole piece flanging both can reduce the internal resistance increasing because of the horizontal nickel bar of transferring, and can use with a baffle by many moneys battery again, cost-saving and minimizing baffle kind; Can also avoid indivedual cell widths excessive, the problem that common process top weldering centre-to-centre spacing very greatly cannot Over-The-Counter partial volume; Can also reduce in labor hour and process because of manual operation cause bad, increase the consistency of product, improve the volume energy density of battery.
As improvement, the width of described anodal flanging is consistent with the width of negative pole flanging.
As improvement, the width of described anodal flanging is A, and the width of negative pole flanging is B, and the centre-to-centre spacing of positive plate and negative electrode lug is H, and the width of anode ear and negative electrode lug is I, and the width of tape measure is G, H=G-A-B-I.
The beneficial effect that the utility model compared with prior art brought is:
The battery designing and producing out of pole piece flanging both can reduce the internal resistance increasing because of the horizontal nickel bar of transferring, and can use with a baffle by many moneys battery again, cost-saving and minimizing baffle kind; Can also avoid indivedual cell widths excessive, the problem that common process top weldering centre-to-centre spacing very greatly cannot Over-The-Counter partial volume; Can also reduce in labor hour and process because of manual operation cause bad, increase the consistency of product, improve the volume energy density of battery.
Accompanying drawing explanation
Fig. 1 is positive plate schematic diagram.
Fig. 2 is negative plate schematic diagram.
Fig. 3 is core strueture schematic diagram.
Embodiment
Below in conjunction with Figure of description, the utility model is described in further detail.
A lithium ion battery cell, comprises positive plate 1, negative plate 4, anode ear 2 and negative electrode lug 5; As shown in Figure 1, described positive plate 1 head is provided with the empty paper tinsel of positive pole of uncoated positive electrode active materials, and the empty foil edge of described positive pole is provided with flanging 3, and described anode ear 2 is welded on described anodal flanging 3; As shown in Figure 2, described negative plate 4 heads are provided with the empty paper tinsel of negative pole of uncoated negative active core-shell material, and the empty foil edge of described negative pole is provided with flanging 6, and described negative electrode lug 5 is welded on described negative pole flanging 6.The width of described anodal flanging 3 is consistent with the width of negative pole flanging 6, the width of described anodal flanging 3 is A, the width of negative pole flanging 6 is B, as shown in Figure 3, positive plate 1 is H with the centre-to-centre spacing of negative electrode lug 5, and the width of anode ear 2 and negative electrode lug 5 is I, and the width of tape measure is G, owing to can having error in the middle of actual production, so H=G-A-B-I-correction value.
During flanging, need one the orientation tool that is specifically designed to discount, first need to, in location, lug inner side, roll over pole piece, during discount, with have gentle hands, comfort pole piece discount place, fix pole piece flanging position, because foil discount place stationarity is fine, need not be again with the fixing pole piece of adhesive tape, otherwise, if adhesive tape has been pasted at flanging place, can affect the stationarity of its position, the easy perk in flanging position.
The battery designing and producing out of pole piece flanging both can reduce the internal resistance increasing because of the horizontal nickel bar of transferring, and can use with a baffle by many moneys battery again, cost-saving and minimizing baffle kind; Can also avoid indivedual cell widths excessive, the problem that common process top weldering centre-to-centre spacing very greatly cannot Over-The-Counter partial volume; Can also reduce in labor hour and process because of manual operation cause bad, increase the consistency of product, improve the volume energy density of battery.
Claims (3)
1. a lithium ion battery cell, comprise positive plate, negative plate, anode ear and negative electrode lug, it is characterized in that: described positive plate head is provided with the empty paper tinsel of positive pole of uncoated positive electrode active materials, the empty foil edge of described positive pole is provided with flanging, described anode ear is welded on described anodal flanging, described negative plate head is provided with the empty paper tinsel of negative pole of uncoated negative active core-shell material, and the empty foil edge of described negative pole is provided with flanging, and described negative pole lug welding is on described negative pole flanging.
2. a kind of lithium ion battery cell according to claim 1, is characterized in that: the width of described anodal flanging is consistent with the width of negative pole flanging.
3. a kind of lithium ion battery cell according to claim 1, is characterized in that: the width of described anodal flanging is A, and the width of negative pole flanging is B, the centre-to-centre spacing of positive plate and negative electrode lug is H, the width of anode ear and negative electrode lug is I, and the width of tape measure is G, H=G-A-B-I.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420245289.9U CN203932197U (en) | 2014-05-14 | 2014-05-14 | A kind of lithium ion battery cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420245289.9U CN203932197U (en) | 2014-05-14 | 2014-05-14 | A kind of lithium ion battery cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203932197U true CN203932197U (en) | 2014-11-05 |
Family
ID=51827961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420245289.9U Expired - Fee Related CN203932197U (en) | 2014-05-14 | 2014-05-14 | A kind of lithium ion battery cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203932197U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105470560A (en) * | 2015-12-30 | 2016-04-06 | 惠州亿纬锂能股份有限公司 | High-energy lithium-ion battery and winding method therefor |
| CN108598359A (en) * | 2018-05-12 | 2018-09-28 | 山东金品能源有限公司 | A method of improving rectangular polymer lithium ion battery cell pole piece active material coated weight |
-
2014
- 2014-05-14 CN CN201420245289.9U patent/CN203932197U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105470560A (en) * | 2015-12-30 | 2016-04-06 | 惠州亿纬锂能股份有限公司 | High-energy lithium-ion battery and winding method therefor |
| CN108598359A (en) * | 2018-05-12 | 2018-09-28 | 山东金品能源有限公司 | A method of improving rectangular polymer lithium ion battery cell pole piece active material coated weight |
| CN108598359B (en) * | 2018-05-12 | 2020-08-28 | 山东金品能源有限公司 | Method for increasing coating amount of active substances of square polymer lithium ion battery cell electrode plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20170514 |