CN209880744U - High-rate discharge polymer lithium ion battery with reverse-winding structure - Google Patents
High-rate discharge polymer lithium ion battery with reverse-winding structure Download PDFInfo
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- CN209880744U CN209880744U CN201920747700.5U CN201920747700U CN209880744U CN 209880744 U CN209880744 U CN 209880744U CN 201920747700 U CN201920747700 U CN 201920747700U CN 209880744 U CN209880744 U CN 209880744U
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- negative pole
- pole piece
- utmost point
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- positive plate
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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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- 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
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Abstract
The utility model discloses a high rate discharge polymer lithium ion battery of formula structure of rewinding, including positive plate head, negative pole piece head and book core, positive plate head left side is connected with the aluminium foil, the welding has positive plate utmost point ear on the positive plate afterbody, the positive plate afterbody stays in the outside after positive plate head is curled up, negative pole piece head left side is connected with the copper foil, the welding has negative pole piece utmost point ear on the negative pole piece afterbody, negative pole piece afterbody stays in the outside and forms the book core after the negative pole piece head is curled up. This high rate of rewinding formula structure discharge polymer lithium ion battery provides a winding structure, and during the coiling, the one end that will not weld utmost point ear is convoluteed earlier, and the one end that has utmost point ear is stayed the core outmost, guarantees like this that the core centre-to-centre spacing that convolutes out has sufficient width, can not lead to utmost point ear centre-to-centre spacing undersize because traditional pole piece head piece goes out utmost point ear inlayer and convolutes, also increases substantially the production efficiency who convolutes simultaneously.
Description
Technical Field
The utility model relates to a gather thing lithium ion battery technical field, specifically be a high rate discharge polymer lithium ion battery of formula structure of rewinding.
Background
Recently, with the rapid rise of the electronic cigarette industry, due to the particularity of the electronic cigarette product structure, the requirement on the center distance of the lug of the high-rate polymer lithium ion battery is higher and higher, and particularly, the lithium ion high-rate battery has the battery width less than or equal to 15mm and the battery thickness more than 6 mm.
At present, when a traditional high-rate discharge polymer lithium ion battery is manufactured in a winding process, a positive winding mode that a core head part is rolled is adopted, the width and the thickness of an electronic cigarette product have certain limitations, the battery width is narrow, the thickness is thick, when the traditional positive winding mode that the core head part is rolled is adopted for winding, the center distance of a lug is narrow, the potential safety hazard of positive and negative short circuit is easily caused due to the narrow positive and negative lugs of the battery during finished products, and the center distance of the positive and negative lugs is narrow and is difficult to be matched with the positive and negative ends of a protection circuit board on the electronic cigarette product. In order to solve the problem, the utility model provides a high rate discharge polymer lithium ion battery of formula structure of rewinding.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high rate discharge polymer lithium ion battery of formula structure rolls back, roll up the core head in order to solve traditional positive book and go out this passenger factor of utmost point ear centre-to-centre spacing excessively narrow of utmost point ear, with positive negative pole utmost point ear welding at the pole piece afterbody when positive negative pole piece welding utmost point ear, when the coiling process is convoluteed, adopt earlier to convolute positive negative pole piece of one end that does not weld utmost point ear earlier, it is outmost to have utmost point ear one end to stay at roll core, utmost point ear centre-to-centre spacing just can be with the positive negative pole end phase-match of the protection circuit board of electron cigarette product like this, utmost point ear centre-to-centre spacing excessively narrow phenomenon can not appear, and produce the obstacle when coiling when not.
For realizing above-mentioned purpose, the utility model provides a high magnification discharge polymer lithium ion battery of formula structure rolls back as following technical scheme, draw forth end and negative pole ear including positive plate head, negative pole piece head, positive plate afterbody, negative pole piece afterbody, positive plate utmost point ear, negative pole piece utmost point ear, aluminium foil, copper foil, book core, positive plate ear and draw forth the end, positive plate head left side is connected with the aluminium foil, and leaves the positive plate afterbody in the aluminium foil left side, the welding has positive plate utmost point ear on the positive plate afterbody, the positive plate afterbody stays the outside after positive plate head is rolled up, and positive plate afterbody outside is rolled up there is the negative pole piece head, negative pole piece head left side is connected with the copper foil, and leaves the negative pole piece afterbody in the copper foil left side, the welding has negative pole piece utmost point ear on the negative pole piece afterbody, the negative pole piece afterbody is left in the outside and is formed the book core after the negative pole piece head is rolled up, positive plate.
Preferably, a piece of separator paper is arranged between the tail of the positive plate and the head of the negative plate.
Preferably, the aluminum foil and the copper foil leave a space in the range of 10-30mm without being coated with a positive polarity substance.
Preferably, the winding core is formed by winding the positive plate and the negative plate, and the winding core is in an inverted winding structure.
Preferably, the positive tab leading-out terminal and the negative tab leading-out terminal are respectively arranged at two sides of the winding core.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a high rate discharge polymer lithium ion battery that formula structure is used for electron cigarette rolls over, the structure of positive and negative pole piece all adopts traditional continuous coating mode during the coating, it is 10-30mm without coating positive and negative active material all to adopt positive and negative face to leave white at the pole piece afterbody, positive and negative pole piece coating is accomplished the back, through the film-making positive negative pole ear and paste insulating adhesive tape in positive and negative pole piece afterbody welding, during the coiling, the one end that will not weld utmost point ear is convoluteed earlier, there is the one end of utmost point ear to stay at a roll core outwardly, it has sufficient width to ensure the book core centre-to-centre spacing of coiling like this, can not lead to utmost point ear centre-to-centre spacing undersize because traditional pole piece head piece goes out utmost point ear inlayer coiling.
Drawings
Fig. 1 is a schematic structural view of a positive plate of the present invention;
fig. 2 is a schematic structural view of the negative plate of the present invention;
fig. 3 is the utility model discloses the roll core structure schematic diagram after the back roll takes shape.
In the figure: 1. positive plate head, 2, negative pole piece head, 3, positive plate afterbody, 4, negative pole piece afterbody, 5, positive plate utmost point ear, 6, negative pole piece utmost point ear, 7, aluminium foil, 8, copper foil, 9, roll up the core, 10, positive pole ear lead-out terminal, 11, negative pole ear lead-out terminal.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a high-rate discharge polymer lithium ion battery with an inverted winding structure comprises a positive plate head 1, a negative plate head 2, a positive plate tail 3, a negative plate tail 4, a positive plate tab 5, a negative plate tab 6, an aluminum foil 7, a copper foil 8, a winding core 9, a positive tab leading-out end 10 and a negative tab leading-out end 11, wherein the aluminum foil 7 is connected with the left side of the positive plate head 1, the tail part 3 of the positive plate is left on the left side of the aluminum foil 7, the tab 5 of the positive plate is welded on the tail part 3 of the positive plate, the tail part 3 of the positive plate is left on the outer side after the head part 1 of the positive plate is rolled up, the outer side of the tail part 3 of the positive plate is coiled with a head part 2 of the negative plate, the left side of the head part 2 of the negative plate is connected with a copper foil 8, a negative plate tail part 4 is reserved on the left side of the copper foil 8, a negative plate tab 6 is welded on the negative plate tail part 4, the negative plate tail part 4 is reserved on the outer side after the negative plate head part 2 is rolled up to form a roll core 9, and the outer ends of a positive plate tab 5 and a negative plate tab 6 are respectively connected with a positive tab leading-out end 10 and a negative tab leading-out end 11;
a piece of diaphragm paper is arranged between the tail part 3 of the positive plate and the head part 2 of the negative plate; a space of 10-30mm is reserved between the aluminum foil 7 and the copper foil 8 without coating positive substances; the winding core 9 is formed by winding a positive plate and a negative plate, and the winding core 9 is arranged in an inverted winding structure; positive tab terminal 10 and negative tab terminal 11 are provided on both sides of winding core 9, respectively.
The working principle is as follows: before the high-rate discharge polymer lithium ion battery with the reverse-winding structure is used, the structure of the whole battery positive plate needs to be known simply, the whole treatment process can be divided into three parts, firstly, as shown in figure 1, about 10-30mm of aluminum foil 7 is reserved during coating production without coating positive substances, the welding position of the positive plate aluminum foil lug, namely the positive plate tail 3, is reserved, the positive plate head 1 is firstly put into a winding machine for winding during winding, and one end with the positive plate lug 5 is reserved on the outermost layer of a winding core; secondly, as shown in fig. 2, about 10-30mm is reserved in the copper foil 8 during coating production without coating negative substances, a negative plate copper foil tab welding position, namely a negative plate tail 4, is reserved, the head 2 of the negative plate is firstly put into a winding machine for winding during winding, and one end with a negative plate tab 6 is reserved on the outermost layer of the winding core; finally, as shown in fig. 3, during winding, a winding mode that the inner layer is the negative plate, the middle layer is the diaphragm paper, and the outer layer is the positive plate is adopted for winding, a winding core 9 is formed after winding, the winding core 9 is of an inverted winding structure, and the central points of the positive tab leading-out end 10 and the negative tab leading-out end 11 can be placed on the side edge of the winding core to the maximum extent, so that the center distance of the tabs is effectively enlarged.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (5)
1. The utility model provides a high magnification of formula structure of rewinding discharges polymer lithium ion battery, includes positive plate head (1), negative pole piece head (2), positive plate afterbody (3), negative pole piece afterbody (4), positive plate utmost point ear (5), negative pole piece utmost point ear (6), aluminium foil (7), copper foil (8), rolls up core (9), and positive pole ear draws forth end (10) and negative pole ear and draws forth end (11), its characterized in that: anodal piece head (1) left side is connected with aluminium foil (7), and leaves anodal piece afterbody (3) in aluminium foil (7) left side, the welding has anodal piece utmost point ear (5) on anodal piece afterbody (3), anodal piece afterbody (3) stay the outside after anodal piece head (1) is rolled up, and anodal piece afterbody (3) outside is rolled up and is had negative pole piece head (2), negative pole piece head (2) left side is connected with copper foil (8), and leaves negative pole piece afterbody (4) on copper foil (8) left side, the welding has negative pole piece utmost point ear (6) on negative pole piece afterbody (4), negative pole piece afterbody (4) are rolled up back negative pole piece head (2) and are stayed the outside and form roll core (9), anodal piece utmost point ear (5) and negative pole piece utmost point ear (6) outer end are drawn forth with anodal ear end (10) and negative pole ear respectively and are.
2. The high-rate discharge polymer lithium ion battery with an inverted structure according to claim 1, wherein: and a diaphragm paper is arranged between the tail part (3) of the positive plate and the head part (2) of the negative plate.
3. The high-rate discharge polymer lithium ion battery with an inverted structure according to claim 1, wherein: the aluminum foil (7) and the copper foil (8) leave a space within the range of 10-30mm without being coated with positive substances.
4. The high-rate discharge polymer lithium ion battery with an inverted structure according to claim 1, wherein: the winding core (9) is formed by winding a positive plate and a negative plate, and the winding core (9) is arranged in a reverse winding structure.
5. The high-rate discharge polymer lithium ion battery with an inverted structure according to claim 1, wherein: the positive tab leading-out terminal (10) and the negative tab leading-out terminal (11) are respectively arranged at two sides of the winding core (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920747700.5U CN209880744U (en) | 2019-05-23 | 2019-05-23 | High-rate discharge polymer lithium ion battery with reverse-winding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920747700.5U CN209880744U (en) | 2019-05-23 | 2019-05-23 | High-rate discharge polymer lithium ion battery with reverse-winding structure |
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| Publication Number | Publication Date |
|---|---|
| CN209880744U true CN209880744U (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920747700.5U Active CN209880744U (en) | 2019-05-23 | 2019-05-23 | High-rate discharge polymer lithium ion battery with reverse-winding structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111490219A (en) * | 2020-03-11 | 2020-08-04 | 安徽潜川动力锂电科技有限公司 | Cylindrical lithium ion battery roll core structure |
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2019
- 2019-05-23 CN CN201920747700.5U patent/CN209880744U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111490219A (en) * | 2020-03-11 | 2020-08-04 | 安徽潜川动力锂电科技有限公司 | Cylindrical lithium ion battery roll core structure |
| CN111490219B (en) * | 2020-03-11 | 2022-10-04 | 安徽潜川动力锂电科技有限公司 | Cylindrical lithium ion battery roll core structure |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A high rate discharge polymer lithium-ion battery with an inverted coil structure Effective date of registration: 20230724 Granted publication date: 20191231 Pledgee: Bank of China Co.,Ltd. Dongguan Branch Pledgor: DONGGUAN JUHE NEW ENERGY CO.,LTD. Registration number: Y2023980049407 |