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Flexible battery

A flexible electrical and active material layer technology, applied in circuits, electrical components, secondary batteries, etc., can solve problems such as unfavorable production applications, tight packaging interfaces, increased battery materials and manufacturing costs, etc., to achieve strong cohesion and improve adhesion. force, the effect of improving the strength of the package

Active Publication Date: 2018-07-10
DONGGUAN AMPEREX TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, affected by the flatness of the substrate, it is difficult to make the packaging interface tight no matter whether the silicone layer or other adhesive layer system is used; and the use of the adhesive layer as the packaging material will increase the material and manufacturing costs of the battery, which is not conducive to actual production and application

Method used

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Examples

Experimental program
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Embodiment Construction

[0036] The flexible battery cell according to the present invention will be described in detail below with reference to the accompanying drawings.

[0037] refer to Figure 1 to Figure 15 , the flexible electric core according to the present invention includes: a first pole piece 1, including a first current collector 11 and a first active material layer 12 disposed on only one surface of the first current collector 11; a second pole piece 2, and The first pole pieces 1 have opposite polarities and are stacked on top of each other, including a second current collector 21 and a second active material layer 22 disposed only on one surface of the second current collector 21 opposite to the first current collector 11; an isolation film 3. Located between the first pole piece 1 and the second pole piece 2, covering and exceeding the first active material layer 12 and the second active material layer 22; electrolyte (not shown, used to impregnate the first active material layer 12....

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Abstract

The present invention provides a flexible electric core, which includes: a first pole piece, including a first current collector and a first active material layer; a second pole piece, including a second current collector and a second active material layer; an isolation film; electrolyte. The first current collector has a first peripheral blank area surrounding the first active material layer and not provided with the first active material layer; the second current collector has a second peripheral blank area surrounding the second active material layer and not provided with the second active material layer. surrounding white space. The isolation film includes: an insulating layer; a first polyolefin layer, bonded on one side of the insulating layer, facing the first active material layer; a second polyolefin layer, bonded on the other side of the insulating layer, facing the second The active material layer; the first peripheral blank area is bent and bonded with the first polyolefin layer; the second peripheral blank area is bent and bonded with the second polyolefin layer.

Description

technical field [0001] The invention relates to the field of energy storage devices, in particular to a flexible electric core. Background technique [0002] Due to the many advantages of lithium-ion batteries, such as high voltage, small size, light weight, high specific capacity, no memory effect, no pollution, small self-discharge and long cycle life, etc., its application in the field of mobile devices has been unprecedented. development, including mobile phones, video cameras, notebook computers, and other portable appliances. With the development of technology for mobile convenience devices and the increase in demand for them, the demand for secondary batteries as energy sources has increased dramatically. Among such secondary batteries, studies on lithium secondary batteries having high energy density and discharge voltage have been widely conducted, and are now widely used. [0003] With the interest of consumers, electronic equipment tends to be smaller and thinne...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/0585
CPCY02E60/10Y02P70/50
Inventor 周华利
Owner DONGGUAN AMPEREX TECH