Method for preparing supercapacitor electrode material basic nickel-cobalt carbonate through hydrothermal method

A supercapacitor, nickel-cobalt carbonate technology, applied in hybrid capacitor electrodes, nickel carbonate, cobalt carbonate and other directions, can solve problems such as unsatisfactory electrochemical performance, and achieve improved capacity rate characteristics, improved electrochemical performance, and good stability. Effect
CN106587171AInactive Publication Date: 2017-04-26BEIJING INSTITUTE OF GRAPHIC COMMUNICATION
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING INSTITUTE OF GRAPHIC COMMUNICATION
Publication Date
2017-04-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for preparing a supercapacitor electrode material basic nickel-cobalt carbonate through a hydrothermal method. The method comprises the following steps that metal nickel salt and / or metal cobalt salt and urea are weighed separately and mixed with deionized water, and stirring is performed so that solids can be dissolved to obtain a mixed solution; the mixed solution is poured into a high-pressure reactor, sealing is performed for performing a reaction for 10-16 h under the temperature of 80-110 DEG C, and a reaction product is obtained; the reaction product is separated, washed and dried to obtain basic nickel-cobalt carbonate. According to the method for preparing the supercapacitor electrode material basic nickel-cobalt carbonate through the hydrothermal method, on the basis of control over raw material compatibility and reaction conditions, the three-dimensional porous structure and morphology can be obtained, sufficient wetting and permeation of an electrolyte are promoted, the superficial area of active substances is sufficiently utilized, and the electrochemical performance is improved.
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Description

technical field

[0001] The invention belongs to the technical field of supercapacitors, and in particular relates to a method for preparing supercapacitor electrode material basic nickel-cobalt carbonate by a hydrothermal method. Background technique

[0002] As a new type of energy storage device, supercapacitors have much higher energy density than traditional capacitors and much higher power density than batteries. The combination of high energy density, high power density and long service life has become a research hotspot. At present, supercapacitors have been widely used in mobile communications, industrial fields, consumer electronics, electric vehicles and national defense technology. A supercapacitor consists of four parts: electrode material, electrolyte, separator and current collector. Its performance is mainly affected by the electrode material and the electrolyte system used. Therefore, finding a more ideal electrode system and electrode material has become an ...

Claims

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