Process for preparing nano nickel oxide electrode for super capacitor

Abstract

The present invention relates to electrode material preparing technology, and is especially process of preparing nanometer nickel oxide electrode for super capacitor. The technological process includes the following steps: 1. compounding water solution A of nickel salt containing polyglycol as the protecting agent and water solution B of sodium hydroxide containing ammonia; 2. adding the solution B into the solution A at 50 deg.C through magnetic stirring for 2 hr to produce precipitant, suction filtering, washing and stoving the precipitant, and calcining at 400-500 deg.C for 4-5 hr to obtain nanometer nickel hydroxide; and 3. mixing the nanometer nickel hydroxide with organic adhesive in the weight ratio of 4-9, mixing in a ball mill, hot pressing at 150 deg.C and 300 MPa for 10-20 min, and final carbonizing at 850 deg.C to obtain nanometer nickel oxide electrode.

Description

technical field

[0001] The invention relates to a preparation method of a nano-nickel oxide electrode used for a supercapacitor, and belongs to the technical field of chemical electrode material manufacturing technology. Background technique

[0002] Supercapacitors are unique capacitors that are 20 to 2000 times larger than conventional capacitors. It has excellent pulse discharge performance and large-capacity energy storage performance that traditional capacitors do not have, and its application in high-energy pulse lasers has attracted widespread attention. At the same time, because of its unique advantages such as large energy storage, high power, light weight, and long cycle life, it is used as a backup power source, such as temporary lighting, heating, electric water pumping, and backup power for computers. Recently, during the practical application of electric vehicles, it was discovered that the vehicle urgently needs to supply high-current pulse electric energy wh...