Cell hemming equipment and cell hemming method using the same

A technology for hemming equipment and battery cells, which is applied in the manufacturing of non-aqueous electrolyte batteries, non-aqueous electrolyte batteries, and electrolyte batteries, etc., can solve the problems of uneven wrinkles, liquid leakage, and hindering the wide application of arc-shaped soft-pack lithium batteries. , to achieve the effect of solving the problem of folding and leakage

Active Publication Date: 2016-01-13
EVE ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Cell hemming equipment and cell hemming method using the same
  • Cell hemming equipment and cell hemming method using the same
  • Cell hemming equipment and cell hemming method using the same

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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 a kind of electric core folding equipment, which has a primary folding device, the upper mold of the primary folding device has a plurality of upper pressing plates arranged at intervals, the lower mold has a plurality of lower pressing plates arranged at intervals, and the upper pressing plate The interval setting and the interval setting of the lower platen are staggered, so that the heat-sealed edge of the arc-shaped edge of the cell forms regular folds after the edge is folded once. Then a 90-degree folding device can be used for secondary folding, and the arc-shaped heat-sealed edge of the battery cell can be folded neatly, without serious expansion of the sealing edge or packaging film due to the wrinkled heat-sealed edges. The situation of being torn by the folding device completely solves the current problem of liquid leakage from the folding of the curved soft-pack lithium battery.

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 Patents(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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