Winding type L-shaped soft package battery and preparation method thereof

A soft-pack battery and winding technology, which is applied in the field of winding L-shaped soft-pack batteries and its preparation, can solve the problems of large damage to pole pieces or packaging shells, and achieve the effect of ensuring quality

Inactive Publication Date: 2017-02-08
EVE ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a winding type L-shaped pouch battery and its preparation method, and solve the problem of large damage to the pole piece or packaging shell when the battery is formed

Method used

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  • Winding type L-shaped soft package battery and preparation method thereof
  • Winding type L-shaped soft package battery and preparation method thereof
  • Winding type L-shaped soft package battery and preparation method thereof

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Embodiment Construction

[0027] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0028] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of ill...

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Abstract

The invention discloses a winding type L-shaped soft package battery and a preparation method thereof. The winding type L-shaped soft package battery comprises a packaging case and a winding body, wherein the winding body is arranged in the packaging case; the winding body comprises two positive electrode sheets, two negative electrode sheets, positive lugs, negative lugs and a diaphragm; the two positive electrode sheets are respectively welded on the positive electrode lugs; the two negative electrode sheets are respectively welded on the negative electrode lugs; the positive electrode sheets and the negative electrode sheets are separated through the diaphragm and are mutually wound and formed. The welding mode of the positive electrode sheets and the negative electrode sheets is regulated, so that the whole positive and negative electrode sheet is divided into two positive and negative electrode sheets with gaps; the gap between the two electrode sheets is used for solving the problem of pulling damage or pulling fracture on the battery inside electrode sheet due to battery angle folding forming. By regulating the case punching mode of the packaging case, the gap position of the first installing groove and the second installing groove on the packaging case is used for performing angle folding forming; the packaging case damage during the 90-degree angle folding can be avoided, so that the quality of the manufactured L-shaped battery can be ensured.

Description

technical field [0001] The invention relates to the technical field of battery production and manufacturing, in particular to a winding L-shaped pouch 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. With the improvement of people's living standards, personalized digital products are emerging endlessly. Such as wrist mobile phones, wrist watches, wrist manometers. [0003] With the wide application of personalization of electronic products in all aspects, L-shaped electronic products tend to choose L-shaped batteries that match their equipment by making the most use of space. The existing L-shaped battery will cause great damage to the pole piece inside the battery when i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0525H01M10/0587
CPCH01M10/0525H01M10/0587H01M2220/30Y02E60/10Y02P70/50
Inventor 田华葛辉明张保兵刘金成
Owner EVE ENERGY CO LTD
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