Diaphragm of supercapacitor

A supercapacitor and diaphragm technology, applied in capacitors, electrolytic capacitors, circuits, etc., can solve problems such as large porosity, large resistance, and poor strength in dry and wet states

Inactive Publication Date: 2004-12-08
NANJING SHUANGDENG SCI TECH DEV RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of existing battery separators such as large thickness, high resista

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0006] Example 1 Asbestos fibers with a mass percentage content of 95% and vinylon fibers with a mass percentage content of 5% were mixed and beaten, and a diaphragm with a thickness of 0.05mm was produced by a wet papermaking method.

Embodiment 2

[0007] Example 2 Asbestos fibers with a mass percentage content of 95% and polyethylene fibers with a mass percentage content of 5% were mixed and beaten, and a diaphragm with a thickness of 0.05mm was produced by a wet papermaking method.

Embodiment 3

[0008] Example 3 Asbestos fibers with a mass percentage content of 97% and polyvinyl alcohol with a mass percentage content of 3% were mixed and beaten, and a diaphragm with a thickness of 0.05 mm was produced by a wet papermaking method.

[0009] The diaphragm produced by the above method has high tensile strength, low resistance, compact structure, good ability to isolate electrons, and excellent liquid absorption performance, and is an important diaphragm material for supercapacitors.

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PUM

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Abstract

Membrane of capacitor is made from asbestos fiber and reinforcing material. Reinforcing material is added into asbestos fiber. Composite membrane dedicated to super capacitor with properties of ultrathin, densification, low resistance and high intensity is produced through paper making method of wet process. The invented product is wide applicable to insulation material in super capacitor possessing lowered internal resistance and raised characteristic of high power.

Description

technical field [0001] The invention relates to a supercapacitor diaphragm, which belongs to the technical field of supercapacitors. Background technique [0002] As a new type of chemical power source, supercapacitors have a long service life (10 5 secondary cycle), high specific power, fast charging, low temperature performance, good high current discharge performance, large energy storage, light weight, maintenance-free and low pollution, cheap price, and excellent performance. It is known as a new type of compact energy source. Existing batteries are difficult to meet the requirements of high power, large capacity, and fast charging. Supercapacitors have been widely used in various fields due to their good performance. [0003] High-power performance is an important characteristic of supercapacitors, and internal resistance is a factor that directly affects its high-power characteristics. As an important part of the supercapacitor, the diaphragm has a very important i...

Claims

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Application Information

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IPC IPC(8): H01G9/02H01M2/16
CPCY02E60/13Y02E60/12
Inventor 唐民洪褚德威熊廷玉祝士平陈怀林杨善基
Owner NANJING SHUANGDENG SCI TECH DEV RES INST
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