Electrode group structure of a polymer pouch battery

A soft-pack battery and polymer technology, applied in secondary batteries, circuits, electrical components, etc., can solve the problems of unsuitable battery production needs and the inability to effectively control the thickness of wound polymer soft-pack batteries. The practical significance of production, the effect of enhancing product use experience, and improving production quality and production efficiency

Active Publication Date: 2016-01-20
TIANJIN JUYUAN NEW ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the thickness of the existing winding polymer pouch battery cannot be effectively controlled, and it cannot be applied to the production needs of batteries with different thicknesses and different energy densities.

Method used

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  • Electrode group structure of a polymer pouch battery
  • Electrode group structure of a polymer pouch battery
  • Electrode group structure of a polymer pouch battery

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Embodiment Construction

[0018] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] see Figure 1 to Figure 3 ,, the present invention provides an electrode group structure of a polymer pouch battery, including a positive electrode sheet 1 and a negative electrode sheet 2, and the positive electrode sheet 1 and the negative electrode sheet 2 are wound together according to a preset winding method to form a battery electrode group .

[0020] In the present invention, when the positive electrode sheet 1 and the negative electrode sheet 2 are wound, the winding end position is set at the highest point of the thickness of the battery electrode group.

[0021] see Figure 1 to Figure 3 , one end of the positive electrode sheet 1 is connected to a positive electrode empty foil 11, the positive electrode empty foil 11 is ...

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Abstract

The invention discloses an electrode group structure of a polymer pouch battery, comprising a positive electrode sheet (1) and a negative electrode sheet (2), and the positive electrode sheet (1) and the negative electrode sheet (2) are wound according to a preset winding method together to form a battery pole group. The electrode group structure of a polymer pouch battery disclosed by the present invention can effectively control the thickness of the battery conveniently and reliably, is suitable for the production needs of batteries with different thicknesses and different energy densities, and can significantly improve the production quality of the battery And production efficiency, enhance the user's product use experience, is conducive to improving the market competitiveness of polymer pouch batteries, and has great practical significance in production.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to an electrode group structure of a polymer pouch battery. Background technique [0002] At present, lithium-ion batteries have the advantages of high specific energy, many cycle times, and long storage time. They are not only widely used in portable electronic devices such as mobile phones, digital cameras, and laptop computers, but also widely used in electric vehicles and electric bicycles. And large and medium-sized electric equipment such as electric tools. [0003] Among them, the winding polymer pouch battery has been widely used on a large scale due to its high degree of mechanization, fast production speed, and guaranteed uniformity. There is also diversity. [0004] With the increasing demand for consumer electronics, polymer pouch batteries are also diversified: different sizes, different shapes, and different energy requirements. At present, among small and medium-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/0587
CPCY02E60/10Y02P70/50
Inventor 辛宁宁程君杜晨树王玉虎
Owner TIANJIN JUYUAN NEW ENERGY TECH CO LTD
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