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Battery core folding equipment and battery core folding method adopting battery core folding equipment

A technology of folding equipment and battery cells, which is applied in the manufacture of non-aqueous electrolyte batteries, non-aqueous electrolyte batteries, and electrolyte batteries, and can solve problems such as irregular wrinkles, liquid leakage, and obstacles to the wide application of arc-shaped soft-pack lithium batteries. , to achieve the effect of solving the problem of hemming leakage

Active Publication Date: 2014-07-02
EVE ENERGY CO LTD
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AI Technical Summary

Problems solved by technology

However, in this process, the folding folds at the arc-shaped edge of the battery cell are not neat, and the irregular position is easy to warp, and the damage to the packaging film is relatively large when the folding is done, and it is easy to tear the packaging film and cause damage. Liquid leakage hinders the wide application of curved soft-pack lithium batteries

Method used

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  • Battery core folding equipment and battery core folding method adopting battery core folding equipment
  • Battery core folding equipment and battery core folding method adopting battery core folding equipment
  • Battery core folding equipment and battery core folding method adopting battery core folding equipment

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Embodiment Construction

[0023] The cell folding equipment and the cell folding method using it will be further described in detail below in conjunction with specific embodiments and accompanying drawings.

[0024] The electric core folding equipment of the present invention mainly includes a primary folding device and a secondary folding device, which are used for electric cells with arc-shaped edges, such as figure 2 After the shown unfolded cell 10 undergoes two folds, the folded folds at the arc edge of the cell are neat, and the bending angle relative to the outer wall of the cell is within an appropriate range.

[0025] figure 2 The shape of the shown unfolded cell 10 is close to that of a table tennis racket, with a curved edge 12 and a straight edge 14 connecting the two ends of the curved edge, wherein the handle of the table tennis racket is replaced by the positive and negative tabs 16 of the battery. The packaging film has been heat-sealed and edge-sealed 18 extends from the upper surfa...

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Abstract

The invention relates to battery core folding equipment. The battery core folding equipment is provided with a primary folding device, wherein an upper mould of the primary folding device is provided with a plurality of upper pressing plates which are arranged at intervals; a lower mould is provided with a plurality of lower pressing plates which are arranged at intervals; the interval arrangement of the upper pressing plates and the interval arrangement of the lower pressing plates are matched in a staggered manner so that a regular fold is formed at the hot sealing edge of a battery core arc-shaped edge subjected to the primary folding; then a 90-degree folding device can be used for carrying out secondary folding and the arc-shaped hot sealing edge of a battery core can be orderly folded and turned up; a condition that the hot sealing edge is folded together so that the sealing edge is seriously extended outwards or a packaging film is broken by the folding device does not occur, and the difficulty that the folding edge of a current arc-shaped flexible package lithium battery leaks liquid is completely solved.

Description

technical field [0001] The invention relates to electric core production equipment and methods, in particular to an arc-shaped electric core folding equipment and a electric core folding method using the same. Background technique [0002] With the development of personalization of electronic products, the market demand for curved soft-pack lithium batteries is increasing. [0003] The bending of curved soft-pack lithium batteries has always been a difficult problem in the industry. The existing curved soft-pack lithium batteries are packaged using a one-time folding process and one-time stamping. However, in this process, the folding folds at the arc-shaped edge of the battery cell are not neat, and the irregular position is easy to warp, and the damage to the packaging film is relatively large when the folding is done, and it is easy to tear the packaging film and cause damage. Liquid leakage hinders the wide application of arc-shaped soft-pack lithium batteries. Conten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M6/14H01M10/058
CPCH01M6/14H01M10/04H01M10/058Y02E60/10Y02P70/50
Inventor 朱俊明龙猛韩纪云刘金成陈玉梅
Owner EVE ENERGY CO LTD
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