Method for preparing polyaniline/manganese dioxide composite material for super capacitor

A supercapacitor, manganese dioxide technology, used in the manufacture of hybrid/electric double layer capacitors, capacitors, electrolytic capacitors, etc., can solve problems such as poor capacitance and cycle stability, limited material conductivity, and high requirements for production equipment, achieving high performance. Specific capacitance, simplified follow-up processing, less demanding effects
CN101696323AInactive Publication Date: 2010-04-21SOUTH CHINA NORMAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTH CHINA NORMAL UNIVERSITY
Publication Date
2010-04-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for preparing a polyaniline / manganese dioxide composite material for a super capacitor, which adopts permanganate as an oxidizer to oxidize aniline to directly obtain the polyaniline / manganese dioxide composite material. The method can ensure the contact of manganese dioxide and polyaniline at molecular level by oxidizing the aniline by the permanganate, has no an impurity phase after a reaction at the same time, and simplifies subsequent treatment work. The method for preparing the polyaniline / manganese dioxide composite material for the super capacitor has the advantages of simple process, convenient operation and convenient control, ensures that the electric conductivity of the prepared polyaniline / manganese dioxide composite material is effectively improved, and is suitable for mass industrial production.
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Description

technical field

[0001] The invention relates to the field of preparation of electrode materials for supercapacitors, in particular to a method for preparing polyaniline / manganese dioxide composite materials used for supercapacitors. Background technique

[0002] Supercapacitors have a much higher energy density than traditional capacitors and a much higher power density than batteries. They have broad application prospects in electric vehicles, mobile communications, aerospace and defense, and their huge potential market makes them an important part of the energy field. research hotspots.

[0003] The performance of supercapacitors depends on the electrode materials. The electrode materials currently used mainly include carbon-based materials, metal oxide materials, and conductive polymer materials. The specific surface of carbon materials is large, the raw materials are cheap, and they have electrical conductivity, which is conducive to large-scale production, but the spec...

Claims

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