CN209929405U - Lithium coating device for pole piece - Google Patents
Lithium coating device for pole piece Download PDFInfo
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- CN209929405U CN209929405U CN201920640353.6U CN201920640353U CN209929405U CN 209929405 U CN209929405 U CN 209929405U CN 201920640353 U CN201920640353 U CN 201920640353U CN 209929405 U CN209929405 U CN 209929405U
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- Prior art keywords
- lithium
- pole piece
- roller
- roll
- compression roller
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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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Abstract
The utility model discloses a lithium device is covered to pole piece, including the lithium area that is used for placing the lithium area put get the mechanism, the pole piece unreels roller, pole piece wind-up roll, be used for the roll-in lithium area and cover the roll-in mechanism and the actuating mechanism that close with lithium area and pole piece, roll-in mechanism is including the first compression roller, second compression roller and the third compression roller that set gradually. The utility model discloses the transfer rate is high, low in production cost, cover lithium thickness uniformity strong, be applicable to all pole pieces and cover lithium device.
Description
Technical Field
The utility model belongs to the technical field of the battery, a lithium battery pole piece covers lithium device is related to.
Background
With the development of social modernization, electronic products play an indispensable role in the production and life of people, batteries are indispensable in the electronic products, and lithium ion batteries are widely used in the fields of consumer electronic products and electric automobiles due to the advantages of high energy density, long service life, greenness, no pollution and the like. However, during the first charge and discharge of the lithium battery, due to the formation of a solid electrolyte film (SEI film), part of lithium is consumed, which results in the loss of lithium as a cathode material, and the loss of capacity due to the first charge and discharge directly results in the loss of battery capacity.
SUMMERY OF THE UTILITY MODEL
For solving exist among the prior art more than not enough, the utility model aims at providing a pole piece covers lithium device to reach and improve transfer rate, reduction in production cost, improve and cover the purpose of lithium thickness uniformity.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a lithium device is covered to pole piece, puts including the lithium area that is used for placing the lithium area and gets mechanism, pole piece unreels roller, pole piece wind-up roll, is used for the roll-in lithium area and covers the roll-in mechanism and the actuating mechanism that close with the lithium area and pole piece, its characterized in that: the roller pressing mechanism comprises a first pressing roller, a second pressing roller and a third pressing roller which are horizontally arranged in sequence; a scraper collecting device used for ensuring the thickness consistency of the rolled lithium strip is arranged below the first pressing roller and the second pressing roller; and a roller for adjusting the angle of the pole piece is arranged between the pole piece unwinding roller and the third compression roller and between the pole piece winding roller and the third compression roller.
As to the utility model discloses a further limit again: the scraper collecting device comprises a collecting box and a scraper fixedly arranged in the collecting box, and the scraper is in contact with the lithium belt.
Since the technical scheme is used, compared with the prior art, the utility model, the beneficial effect who gains lies in:
(1) the utility model discloses the roll-in to the lithium area is accomplished through first compression roller and second roller, consequently can extrude the lithium area of certain thickness into lithium membrane to make it attach to on the second compression roller, along with the rotation of second compression roller, cover the lithium membrane again and close the pole piece through the pressure between second compression roller and the third compression roller, the pole piece after the lithium cladding withdraws it through pole piece wind-up roll, accomplishes pole piece lithium cladding;
(2) the scraper collecting device is arranged below the first compression roller and the second compression roller, the scraper is used for scraping off redundant lithium films attached to the second compression roller after crushing, the thickness of the lithium films is kept consistent, and the scraped lithium films are collected in the collecting box and prevented from falling to the ground to pollute the environment;
(3) the utility model discloses being equipped with the roller between pole piece unreeling roller and the third compression roller, being favorable to adjusting the angle of pole piece, making its better laminate with the third compression roller, improved and covered the lithium effect, be equipped with the roller simultaneously between pole piece wind-up roll and third compression roller, be favorable to the adjustment to cover the cornerite between the pole piece after the lithium and the pole piece wind-up roll, make its better winding on the pole piece wind-up roll.
To sum up, the utility model discloses keep away the transfer rate high, reduced manufacturing cost, improved and cover lithium thickness uniformity, be applicable to all pole pieces and cover lithium device.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic diagram of a lithium coating process according to an embodiment of the present invention.
In the figure: the device comprises a lithium belt unwinding mechanism 1, a lithium belt unwinding mechanism 2, a first compression roller 21, a second compression roller 22, a third compression roller 23, a pole piece unwinding roller 3, a pole piece winding roller 4, a pole piece winding roller 5, a roller passing mechanism 6, a driving mechanism 7, a scraper collecting device 71, a collecting box 72, a scraper, an L-lithium belt and a P-pole piece.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the lithium-clad device of the electrode plate described herein is a preferred embodiment, and is only used for illustrating and explaining the present invention, and does not constitute a limitation to the present invention.
Example Pole piece lithium coating device
In this embodiment, as shown in fig. 1, a lithium-clad device for a pole piece includes a lithium-strip unwinding mechanism 1 for placing a lithium strip L, a pole piece unwinding roller 3, a pole piece winding roller 4, a rolling mechanism 2 for rolling the lithium strip L and cladding the lithium strip L and a pole piece P, and a driving mechanism 6, wherein the lithium-strip unwinding mechanism 1 is wound with the lithium strip L and conveys the lithium strip L between a first pressing roller 21 rotating clockwise and a second pressing roller 22 rotating counterclockwise (or conveys the lithium strip L between the first pressing roller 21 rotating counterclockwise and the second pressing roller 22 rotating counterclockwise), the first pressing roller 21, the second pressing roller 22, and the third pressing roller 23 are controlled by independent motors respectively, and adjust the second pressing roller 22 and the first pressing roller 21 to press a lithium film after being extruded, the lithium film is attached to the second pressing roller 22 and rotates along with the second pressing roller 22, and at the same time, the unwinding roller 3 conveys the pole piece P between the second pressing roller 22 and the third pressing roller 23, laminating the lithium film and the pole piece P by the pressure between the second compression roller 22 and the third compression roller 23, and rolling the pole piece P coated with the lithium film onto a pole piece rolling roller 4 by a roller 5 to complete the lithium coating of the pole piece P; a roller 5 for adjusting the angle of the pole piece P is arranged between the pole piece unwinding roller 3 and the third pressing roller 23, and the wrap angle of the pole piece P can be adjusted at any time in the process of covering the pole piece P and the lithium film so as to enable the pole piece P to be better covered with the lithium film; a roller 5 for adjusting the angle of the pole piece is arranged between the pole piece winding roller 4 and the third pressing roller 23, and the wrap angle between the pole piece P coated with the lithium film and the pole piece winding roller 4 can be adjusted at any time, so that the pole piece P can be better wound on the pole piece winding roller 4.
The below of first compression roller 21 and second compression roller 22 is equipped with the scraper collection device 7 that is used for guaranteeing lithium area L thickness uniformity after the roll-in, scraper collection device 7 is including collecting box 71 and setting firmly the scraper 72 in collecting box 71, scraper 72 and the contact setting of lithium area L can scrape unnecessary lithium area L, and thickness is unanimous when making the lithium membrane that attaches to on second compression roller 22 cover with pole piece P and close, has improved and has covered lithium thickness uniformity, and the lithium powder that drops is collected by collecting box 71, prevents the pollution of environment.
The utility model discloses a cover lithium process does: the lithium area L that twines on lithium area is put and is got mechanism 1 passes through the gap between first compression roller 21 and the second compression roller 22 earlier, along with second compression roller 22 rotates, simultaneously, pole piece unreels roller 3 and carries pole piece P to between second compression roller 22 and the third compression roller 23, pressure through between second compression roller 22 and the third compression roller 23 closes lithium membrane and pole piece P complex, pole piece P can separate with the third compression roller 23 completely, pole piece P that has closed the lithium membrane winds it on pole piece wind-up roll 4 through passing roller 5, accomplish the lithium that covers of pole piece P.
Claims (2)
1. The utility model provides a lithium device is covered to pole piece, puts including the lithium area that is used for placing the lithium area and gets mechanism, pole piece unreels roller, pole piece wind-up roll, is used for the roll-in lithium area and covers the roll-in mechanism and the actuating mechanism that close with the lithium area and pole piece, its characterized in that: the roller pressing mechanism comprises a first pressing roller, a second pressing roller and a third pressing roller which are horizontally arranged in sequence; a scraper collecting device used for ensuring the thickness consistency of the rolled lithium strip is arranged below the first pressing roller and the second pressing roller; and a roller for adjusting the angle of the pole piece is arranged between the pole piece unwinding roller and the third compression roller and between the pole piece winding roller and the third compression roller.
2. The lithium-clad device of claim 1, wherein: the scraper collecting device comprises a collecting box and a scraper fixedly arranged in the collecting box, and the scraper is in contact with the lithium belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920640353.6U CN209929405U (en) | 2019-05-07 | 2019-05-07 | Lithium coating device for pole piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920640353.6U CN209929405U (en) | 2019-05-07 | 2019-05-07 | Lithium coating device for pole piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209929405U true CN209929405U (en) | 2020-01-10 |
Family
ID=69089779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920640353.6U Active CN209929405U (en) | 2019-05-07 | 2019-05-07 | Lithium coating device for pole piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209929405U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112838187A (en) * | 2021-04-15 | 2021-05-25 | 江苏时代新能源科技有限公司 | Lithium supplementing device and lithium supplementing method |
| CN113725397A (en) * | 2021-11-02 | 2021-11-30 | 天津中能锂业有限公司 | Fast response transfer multiplexing method |
-
2019
- 2019-05-07 CN CN201920640353.6U patent/CN209929405U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112838187A (en) * | 2021-04-15 | 2021-05-25 | 江苏时代新能源科技有限公司 | Lithium supplementing device and lithium supplementing method |
| CN112838187B (en) * | 2021-04-15 | 2021-09-14 | 江苏时代新能源科技有限公司 | Lithium supplementing device and lithium supplementing method |
| CN113725397A (en) * | 2021-11-02 | 2021-11-30 | 天津中能锂业有限公司 | Fast response transfer multiplexing method |
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