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Lithium battery lamination method

A lithium battery and lamination technology, which is applied in the direction of secondary batteries, circuits, electrical components, etc., can solve problems that affect product qualification rate and efficiency, poor alignment, and wrinkled diaphragms, and achieve convenient model replacement and low equipment investment. Low cost and simple way to achieve the effect

Pending Publication Date: 2022-03-04
捷威动力工业嘉兴有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, if figure 1 The existing lamination method is generally Z-shaped stacking laminations, low efficiency, poor alignment, wrinkled diaphragm and other problems seriously affect the product qualification rate and efficiency

Method used

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  • Lithium battery lamination method
  • Lithium battery lamination method
  • Lithium battery lamination method

Examples

Experimental program
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Embodiment 1

[0026] This embodiment provides a lithium battery lamination method, such as Figure 2-4 As shown, it includes a continuous positive electrode sheet 1, a continuous separator belt 2, and a negative electrode sheet 3; wherein the positive electrode sheet, the separator belt, and the negative electrode sheet are all provided with a coating.

[0027] The positive electrode sheet 1 is a continuous positive electrode sheet with an involute 1-1 without cutting, and the negative electrode sheet 3 is several single-piece negative electrode sheets obtained after cutting; Fold at its involute 1-1 position.

[0028] Place the continuous separator belt 2 on both sides of the positive electrode sheet 1, and then insert the negative electrode sheet vertically, wherein when each single piece of negative electrode sheet 3 is inserted vertically: the first contacted separator belt wraps each negative electrode sheet , the wrapped negative electrode sheet is inserted along the involute line of...

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Abstract

The invention discloses a lithium battery lamination method which comprises a continuous positive plate, a continuous diaphragm belt and a negative plate, and folding the continuous positive plate, laminating the diaphragm belt on the folded positive plate, and inserting the negative plate through the folding positions of the diaphragm belt and the positive plate in sequence to obtain the lithium ion laminated battery. The method is simple in implementation mode and low in equipment implementation difficulty; the equipment investment is low; various sizes of batteries are compatible and are convenient to change; and the problems of inaccurate sheet feeding, misplaced carrying and the like in the prior art can be effectively avoided.

Description

technical field [0001] The invention relates to the technical field of lithium battery laminations, in particular to a lithium battery lamination method. Background technique [0002] Lithium battery is currently commercialized with the highest specific power and energy density, and has been widely used in modern tools such as notebook computers, mobile phones, communication base stations and automotive power supplies. The battery core is the most important part of the lithium-ion battery. [0003] The existing lithium battery stacking method is to insert and place the positive and negative pole pieces back and forth through the diaphragm swing or the stacking table to move or swing back and forth, and the original lithium battery positive pole piece and negative pole piece are all cut by a metal cutting knife according to the regulations. Dimension single-piece cutting, as the size of positive and negative electrodes is getting larger and larger with the change of market d...

Claims

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Application Information

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IPC IPC(8): H01M10/0583H01M10/0525
CPCH01M10/0583H01M10/0525Y02E60/10Y02P70/50
Inventor 姜昆吴良骥
Owner 捷威动力工业嘉兴有限公司