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Winding manufacturing method of polymer battery

A production method and polymer technology, which is applied in the field of winding production of polymer batteries, can solve the problems of slow stacking speed, high power consumption, and large internal resistance of batteries, and achieve the effect of small internal resistance and high efficiency

Inactive Publication Date: 2007-05-23
曾坚义
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is: the internal resistance of the finished battery is relatively large, resulting in high internal consumption in high-rate discharge, so the rate discharge performance is not as good as that of laminated batteries
The disadvantage is: the lamination speed is slow, the production efficiency is low, and the general lamination worker can only do about 30 pieces / hour

Method used

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  • Winding manufacturing method of polymer battery
  • Winding manufacturing method of polymer battery
  • Winding manufacturing method of polymer battery

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Experimental program
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Embodiment Construction

[0021] See Figures 5 and 6:

[0022] As shown in Figure 5, it is the structural diagram of the positive electrode sheet and the negative electrode sheet of the winding production method of the polymer battery of the present invention. The one on the sheet is called the positive tab, and the one on the negative sheet is called the negative tab. The positive and negative sheets have the same shape. Since the pole piece has a certain thickness, its circumference will increase every time it is wound from the inside to the outside. In order to ensure that the tabs overlap after winding, the distance between adjacent tabs gradually increases by a certain amount from left to right. This The data can be obtained through theoretical calculations. Then, the positive and negative electrode sheets are wound by a traditional winding method, and the winding forms a layered tab, and the positive tab and the negative tab are respectively overlapped up and down. Then solder the positive and ...

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Abstract

The invention relates to a method for coiling and producing polymer battery, wherein it comprises that: a, making anode and cathode sheets into a bar with several polar ears on one edge, the distance of nearby polar ears is increased from left to right; b, coiling anode and cathode sheets together into laminated shape; c, welding anode and cathode sheets of each layer, said anode and cathode sheets are punched in one time, while there is only one anode and one cathode sheet. The invention has high efficiency, while each layer has polar ear and it has low inner resistance.

Description

Technical field: [0001] The invention relates to a production method of a polymer battery, in particular to a winding production method of a polymer battery. Background technique: [0002] There are two existing production processes for polymer batteries: 1. winding method; 2. stacking method. [0003] Winding method: Both the positive and negative electrodes are a rectangular pole piece, and a piece of tab is welded at the beginning (as shown in Figure 1). Winding is to wind the positive and negative pole pieces in parallel to form an ellipsoid (such as Figure 2), there is only one positive tab and one negative tab. [0004] The advantage of this method is: the speed is fast, the winder who has been trained for 2 to 3 months can do 120-150 pieces / hour, and the speed will be faster if an automatic winding machine is used. The disadvantage is: the internal resistance of the finished battery is relatively large, resulting in high internal consumption in high-rate discharge, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/40H01M6/16H01M4/04H01M10/04
CPCY02E60/122Y02E60/10Y02P70/50
Inventor 何安轩黄泽伟刁胜谭欣荣曹丽君陈伟成
Owner 曾坚义