Asymmetric electrochemical capacitor and preparation method of asymmetric electrochemical capacitor

An electrochemical and asymmetric technology, applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, etc., can solve the problems of limiting asymmetric electrochemical capacitors, polluting the environment, and time consumption, and achieves easy promotion and high power Good density and circulation
CN103050291AActive Publication Date: 2013-04-17UNIV OF SCI & TECH OF CHINA
1 Cites 7 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
UNIV OF SCI & TECH OF CHINA
Publication Date
2013-04-17

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides an asymmetric electrochemical capacitor and a preparation method of the asymmetric electrochemical capacitor. The prepared asymmetric electrochemical capacitor comprises a positive electrode, a negative electrode, electrolyte, a diaphragm and a current collector, wherein the positive electrode is made of p-BC@MnO2, and the negative electrode is made of p-BC / N, wherein the p-BC is pyrolyzed bacterial cellulose. The asymmetric electrochemical capacitor provided by the invention has the advantages that the bacterial cellulose with low cost and rich yield is used as electrode raw materials, the prepared asymmetric electrochemical capacitor has high specific capacitance, good cyclicity and high stability, and high energy density and power density are realized.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of electrochemical capacitors, in particular to an asymmetric electrochemical capacitor and a preparation method thereof. Background technique

[0002] Electrochemical capacitors, also known as supercapacitors, are a new type of energy storage device between capacitors and batteries. Compared with traditional capacitors, electrochemical capacitors have higher specific capacity, higher specific power than batteries, can release large current instantly, have short charging time, high charging efficiency, long cycle life, no Advantages such as memory effect and basic maintenance-free. Therefore, electrochemical capacitors have great potential application value in the fields of mobile communications, consumer electronics, electric vehicles, and aerospace.

[0003] At present, the electrode materials of electrochemical capacitors are mainly divided into three categories: metal oxides, conducting polymers, and hybrid mate...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More