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Special-shaped lithium ion battery and preparation method thereof

A lithium-ion battery and ion battery technology, applied in the field of lithium-ion batteries, can solve the problems of unsatisfactory special-shaped assembly space for personalized electronic products, difficulty in actual operation, difficulty in welding tabs and position setting of special-shaped lithium-ion batteries, etc. , to achieve the effects of simple and smooth production process, good performance, simplified position setting and welding difficulty

Pending Publication Date: 2021-03-05
SHENZHEN TOPBAND NEW ENERGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the wide application of the above-mentioned personalized electronic products in various aspects, the requirements for the shape of the battery are no longer limited to the traditional square shape, so the traditional square-shaped battery is not satisfied with the special-shaped assembly space in the personalized electronic products
[0004] In addition, corresponding to different shapes of batteries, the shape of the battery pole piece has also become various, and the tab welding and position setting of special-shaped lithium-ion batteries have always been a difficult problem in the industry. The particularity of the size brings certain difficulties to the actual operation.

Method used

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  • Special-shaped lithium ion battery and preparation method thereof
  • Special-shaped lithium ion battery and preparation method thereof
  • Special-shaped lithium ion battery and preparation method thereof

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Embodiment Construction

[0041] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0042] Such as Figure 1-4 As shown, the special-shaped lithium-ion battery according to an embodiment of the present invention is butterfly-shaped, so the lithium-ion battery as a whole is butterfly-shaped. The special-shaped lithium-ion battery includes a butterfly-shaped casing 10 and a butterfly-shaped cell 20 disposed in the casing 10 .

[0043] The battery cell 20 includes at least one positive electrode sheet 21 and at least two negative electrode sheets 22 stacked together, and a plurality of diaphragm sheets 23 stacked between the positive electrode sheet 21 and the negative electrode sheet 22 and on opposite sides of the battery cell 20 . The positive electrode sheet 21, the negative electrode sheet 22 and th...

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Abstract

The invention discloses a special-shaped lithium ion battery and a preparation method thereof. The special-shaped lithium ion battery comprises a butterfly-shaped shell and a butterfly-shaped batterycell arranged in the shell, wherein the battery cell comprises at least one positive plate and at least two negative plates which are overlapped with each other, and a plurality of diaphragm sheets which are overlapped between the positive plate and the negative plates and on two opposite sides of the battery cell; and the positive plate, the negative plate and the diaphragm sheet are butterfly-shaped. The special-shaped lithium ion battery is integrally arranged in a special shape (butterfly shape), the battery with good performance and unique and individual appearance is provided for a customized electronic product, and the space utilization rate of the electronic product is improved. Manufacturing process is simple and unobstructed.

Description

technical field [0001] The invention relates to the technical field of lithium ion batteries, in particular to a special-shaped lithium ion battery and a preparation method thereof. Background technique [0002] In recent years, with the development of battery technology, lithium-ion batteries have been widely used in digital products, electric tools and power toys because of their large discharge current, good stability, good safety, and large capacity. life has brought great convenience. [0003] With the improvement of people's living standards, personalized electronic products emerge in an endless stream, such as wrist mobile phones, wrist watches, wrist manometers and the like. Due to the wide application of the above-mentioned personalized electronic products in various aspects, the requirement for the shape of the battery is no longer limited to the traditional square shape, so the traditional square-shaped battery is not satisfied with the special-shaped assembly sp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0525H01M10/058
CPCH01M10/0525H01M10/058Y02E60/10Y02P70/50
Inventor 不公告发明人
Owner SHENZHEN TOPBAND NEW ENERGY CO LTD
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