CN220585448U - Polymer lithium ion battery cell structure for adjusting lug position - Google Patents
Polymer lithium ion battery cell structure for adjusting lug position Download PDFInfo
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- CN220585448U CN220585448U CN202322250822.2U CN202322250822U CN220585448U CN 220585448 U CN220585448 U CN 220585448U CN 202322250822 U CN202322250822 U CN 202322250822U CN 220585448 U CN220585448 U CN 220585448U
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- connecting piece
- plug
- positive
- negative
- current collector
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- 229920000642 polymer Polymers 0.000 title claims abstract description 18
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 16
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 239000011888 foil Substances 0.000 claims abstract description 42
- 239000007773 negative electrode material Substances 0.000 claims description 3
- 239000007774 positive electrode material Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000004804 winding Methods 0.000 description 4
- 238000002955 isolation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009831 deintercalation Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of polymer batteries and discloses a polymer lithium ion battery core structure for adjusting the position of a tab, which comprises an anode current collector, a cathode current collector and an isolating layer, wherein the anode current collector is provided with an anode empty foil position and an anode tab, the anode empty foil position is provided with a first connecting piece and a second connecting piece, the cathode current collector is provided with a cathode empty foil position and a cathode tab, the cathode empty foil position is provided with a third connecting piece and a fourth connecting piece, and the first connecting piece, the second connecting piece, the third connecting piece and the fourth connecting piece can be connected with one another; the utility model has the following advantages: the positive and negative electrode empty foil positions are aligned, the respective empty foil positions are divided into two parts through the connecting pieces, the corresponding lugs can be inserted into the corresponding positions at will, the connecting pieces at the corresponding positions are connected and fixed with each other only when the package is carried out, the inserted positions of the lugs are adjusted, and the random conversion of the positive and negative lugs from left to right and vice versa can be realized, so that the operation is simple and quick.
Description
Technical Field
The utility model relates to the field of polymer batteries, in particular to a polymer lithium ion battery cell structure for adjusting the position of a tab.
Background
The polymer lithium ion battery is a novel battery which is formed in a charging and discharging process through continuous intercalation and deintercalation of lithium ions between an anode and a cathode, and is commonly used as a soft-package battery and a hard-shell battery.
The polymer battery core of the soft package battery is generally formed by adopting a winding mode, and the positions of the positive and negative lugs of the winding core are left, right and negative no matter the winding core is positively wound, rewound or the lug is in the middle. In actual use, some battery cells need the lug positions of 'left negative and right positive'. For the battery core, the battery core with the positive coil and the electrode lug in the middle can be solved by reversing the position of the electrode lug when the top side is sealed, but for the battery core with the rewinding, the electrode lug is biased to one side of the winding core, which is at the tail end, and the single pit design cannot be solved by the method, so the inventor carries out a new utility model.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a polymer lithium ion battery cell structure for adjusting the position of a tab, which has the advantage of being convenient for fixing and replacing the position of the tab.
In order to achieve the above purpose, the polymer lithium ion battery cell structure for adjusting the position of the tab comprises a positive current collector and a negative current collector, wherein the positive current collector is coated with a positive active material, the negative current collector is coated with a negative active material, an isolating layer is arranged between the positive current collector and the negative current collector, one end of the positive current collector is provided with a positive empty foil position and a positive tab, the middle part of the positive empty foil position is provided with a first connecting piece, the tail end of the positive empty foil position is provided with a second connecting piece, one end of the negative current collector is provided with a negative empty foil position and a negative tab, the middle part of the negative empty foil position is provided with a third connecting piece, the tail end of the negative empty foil position is provided with a fourth connecting piece, and the first connecting piece, the second connecting piece, the third connecting piece and the fourth connecting piece can be connected with each other.
Furthermore, the positive electrode empty foil position is provided with a first plug position and a second plug position through the first connecting piece, and the positive electrode lug can be freely plugged in the first plug position or the second plug position.
Furthermore, the negative electrode empty foil position is provided with a third plug position and a fourth plug position through a third connecting piece, and the negative electrode lug can be freely plugged in the third plug position or the fourth plug position.
Further, the positive electrode lug and the negative electrode lug are respectively provided with a fixing piece which is clamped with the notch of the first plug-in position, the second plug-in position, the third plug-in position and the fourth plug-in position.
Preferably, the fixing member is in an M-shape sheet shape and is an insulating member.
Further, the first connecting piece, the second connecting piece, the third connecting piece and the fourth connecting piece are all provided with protruding blocks and grooves which are connected with the protruding blocks in a matching mode.
The beneficial effects are that: compared with the prior art, the polymer lithium ion battery cell structure for adjusting the position of the tab comprises the positive current collector and the negative current collector, wherein an isolation layer is arranged between the positive current collector and the negative current collector, the positive current collector is provided with a positive empty foil position and a positive tab, the positive empty foil position is provided with a first connecting piece and a second connecting piece, the negative current collector is provided with a negative empty foil position and a negative tab, the negative empty foil position is provided with a third connecting piece and a fourth connecting piece, and the first connecting piece, the second connecting piece, the third connecting piece and the fourth connecting piece can be connected with one another; the utility model has the following advantages: the positive and negative electrode empty foil positions are aligned, the respective empty foil positions are divided into two parts through the connecting pieces, the corresponding lugs can be inserted into the corresponding positions at will, the connecting pieces at the corresponding positions are connected and fixed with each other only when the package is carried out, the inserted positions of the lugs are adjusted, and the random conversion of the positive and negative lugs from left to right and vice versa can be realized, so that the operation is simple and quick.
Drawings
Fig. 1 is a schematic view of a positive electrode current collector according to the present utility model.
Fig. 2 is a schematic view of a negative current collector according to the present utility model.
Fig. 3 is a schematic view of a positive and negative current collector stack of the present utility model.
Fig. 4 is a schematic structural view of a first connector according to the present utility model.
The reference numerals include:
positive electrode current collector-1, positive electrode active material-11, negative electrode current collector-2, negative electrode active material-21, isolation layer-3, positive electrode empty foil position-4, positive electrode lug-41, first connecting piece-42, lug-421, groove-422, second connecting piece-43, first inserting position-44, second inserting position-45, negative electrode empty foil position-5, negative electrode lug-51, third connecting piece-52, fourth connecting piece-53, third inserting position-54, fourth inserting position-55 and fixing piece-6.
Detailed Description
The present utility model will be described in detail with reference to fig. 1 to 4.
The utility model relates to a polymer lithium ion battery core structure for adjusting the position of a tab, which comprises a positive current collector 1 and a negative current collector 2, wherein a positive active material 11 is coated on the positive current collector 1, a negative active material 21 is coated on the negative current collector 2, an isolating layer 3 is arranged between the positive current collector 1 and the negative current collector 2, one end of the positive current collector 1 is provided with a positive empty foil position 4 and a positive tab 41, the middle part of the positive empty foil position 4 is provided with a first connecting piece 42, the tail end of the positive empty foil position 4 is provided with a second connecting piece 43, one end of the negative current collector 2 is provided with a negative empty foil position 5 and a negative tab 51, the middle part of the negative empty foil position 5 is provided with a third connecting piece 52, the tail end of the negative empty foil position 5 is provided with a fourth connecting piece 53, and the first connecting piece 42, the second connecting piece 43, the third connecting piece 52 and the fourth connecting piece 53 can be mutually connected. Specifically, after the battery core is rewound and formed, the lengths of the positive electrode empty foil position 4 and the negative electrode empty foil position 5 are consistent, the first connecting piece 42 is fixedly connected with the third connecting piece 52, the second connecting piece 43 is fixedly connected with the fourth connecting piece 53, the battery core can be fixed, the battery core is convenient to package, and the positive electrode empty foil position 4 and the negative electrode empty foil position 5 are divided into four slots so as to adjust the positions of the positive electrode lug 41 and the negative electrode lug 51. More specifically, the positive electrode empty foil position 4 is provided with a first plug position 44 and a second plug position 45 through the first connecting piece 42, and the positive electrode lug 41 can be freely plugged in the first plug position 44 or the second plug position 45; similarly, the negative electrode empty foil position 5 is provided with a third plug position 54 and a fourth plug position 55 through the third connecting piece 52, and the negative electrode lug 51 can be freely plugged in the third plug position 54 or the fourth plug position 55. According to the battery cell structure, when the battery cell is packaged, the left, right, positive and negative of the positive and negative electrode lugs can be randomly converted by connecting and fixing the connecting pieces at the corresponding positions and adjusting the inserting positions of the electrode lugs, and the operation is simple and quick.
The positive electrode lug 41 and the negative electrode lug 51 are respectively provided with a fixing piece 6 which is clamped with the notches of the first plug-in position 44, the second plug-in position 45, the third plug-in position 54 and the fourth plug-in position 55, so that the replacement and the adjustment of the electrode lugs are facilitated.
The fixing piece 6 is in an M-shaped sheet shape, the fixing effect is improved, the occupied space is reduced, and in order to avoid short circuit of the battery cell, the fixing piece 6 is an insulating piece with certain heat resistance.
The first connecting piece 42, the second connecting piece 43, the third connecting piece 52 and the fourth connecting piece 53 are respectively provided with a convex block 421 and a groove 422 matched and connected with the convex block 421, so that the first connecting piece 42, the second connecting piece 43, the third connecting piece 52 and the fourth connecting piece can be mutually connected and fixed.
The foregoing is merely illustrative of the preferred embodiments of the present utility model, and no limitations are intended to the scope of the utility model except insofar as shown and described herein 。
Claims (6)
1. The utility model provides a polymer lithium ion electricity core structure of adjustment utmost point ear position, includes anodal current collector (1) and negative pole current collector (2), its characterized in that: the positive current collector is characterized in that a positive active material (11) is coated on the positive current collector (1), a negative active material (21) is coated on the negative current collector (2), an isolating layer (3) is arranged between the positive current collector (1) and the negative current collector (2), one end of the positive current collector (1) is provided with a positive empty foil position (4) and a positive lug (41), the middle part of the positive empty foil position (4) is provided with a first connecting piece (42), the tail end of the positive empty foil position (4) is provided with a second connecting piece (43), one end of the negative current collector (2) is provided with a negative empty foil position (5) and a negative lug (51), the middle part of the negative empty foil position (5) is provided with a third connecting piece (52), and the tail end of the negative empty foil position (5) is provided with a fourth connecting piece (53), and the first connecting piece (42), the second connecting piece (43), the third connecting piece (52) and the fourth connecting piece (53) are mutually connected.
2. The polymer lithium ion battery cell structure for adjusting the position of a tab according to claim 1, wherein: the positive electrode empty foil position (4) is provided with a first plug-in position (44) and a second plug-in position (45) through a first connecting piece (42), and the positive electrode lug (41) can be freely plugged in the first plug-in position (44) or the second plug-in position (45).
3. The polymer lithium ion battery cell structure for adjusting the position of a tab according to claim 2, wherein: the negative electrode empty foil position (5) is provided with a third plug position (54) and a fourth plug position (55) through a third connecting piece (52), the negative electrode lug (51) can be freely plugged in the third plug position (54) or the fourth plug position (55), and the first plug position (44) and the second plug position (45) are respectively aligned with the third plug position (54) and the fourth plug position (55).
4. A polymer lithium ion cell structure for adjusting tab position according to claim 3, wherein: the positive lug (41) and the negative lug (51) are respectively provided with a fixing piece (6) which is clamped with the notch of the first plug-in position (44), the second plug-in position (45), the third plug-in position (54) and the fourth plug-in position (55).
5. The polymer lithium ion battery cell structure for adjusting the position of a tab according to claim 4, wherein: the fixing piece (6) is in an M-shaped lamellar shape and is an insulating piece.
6. The polymer lithium ion battery cell structure for adjusting the position of a tab according to claim 1, wherein: the first connecting piece (42), the second connecting piece (43), the third connecting piece (52) and the fourth connecting piece (53) are respectively provided with a convex block (421) and a groove (422) which is connected with the convex block (421) in a matching way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322250822.2U CN220585448U (en) | 2023-08-22 | 2023-08-22 | Polymer lithium ion battery cell structure for adjusting lug position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322250822.2U CN220585448U (en) | 2023-08-22 | 2023-08-22 | Polymer lithium ion battery cell structure for adjusting lug position |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220585448U true CN220585448U (en) | 2024-03-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322250822.2U Active CN220585448U (en) | 2023-08-22 | 2023-08-22 | Polymer lithium ion battery cell structure for adjusting lug position |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220585448U (en) |
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2023
- 2023-08-22 CN CN202322250822.2U patent/CN220585448U/en active Active
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