The properties of the capacitor grade niobium powders developed in Ningxia which can meet the requirements for manufacturing solid electrolytic capacitors were introduced.

The application of metal niobium for making niobium capacitor in electronic industry was introduced, and the original, background, history and current state for development of niobium capacitor were described.

This paper gives an introduction to basic performance of metal Nb and applications of niobium as a kind of material used in the industry of electronic components and devices, and also gives a description of the original, background, history and current status for development of niobium capacitor, its performances and advantages for applications.

Electrolytic niobium capacitor is a future electrolytic capacitor because it′s better in capability than electrolytic aluminum capacitor and lower in price than electrolytic tantalum capacitor.

The preparation technology of capacitor grade nano Ta powder was studied by using induction plasma powder synthesis system.

In order to control the particle size and morphology of capacitor grade Ta powder using plasma technology,the preparation experiments were performed by changing two main processing parameters to investigate influences of plasma power and feedrate on particle size,particle size distribution and morphology of the powder.

The capacitor grade Ta powder preparation experiments were done using induction plasma technology.