低价铌氧化物电解电容器阳极的研制

Preparation of Electrolytic Capacitor Anode of Niobium Suboxide

采用Nb与Nb2O5固-固反应制备低价铌氧化物粉末,用正交试验法及方差分析对制备低价铌氧化物电解电容器阳极的工艺条件进行了优化。所研制的电容器阳极比容69500μF·V·g-1、损耗11.25%、漏电流(K值)1.8×10-4μA·μF-1·V-1,优于FTa16-300电容器钽粉国家标准(GB/T3136-1995)。

The niobium suboxide powder was prepared adopting the solid-solid reaction between Nb and Nb(2)O(5). The technological conditions of preparing the suboxide anode for electrolytic capacitors were optimized by orthogonal experiments and variance analysis. The specific capacity of niobium suboxide anode prepared by this technique is 69 500 mu F(.)V(.)g(-1), the loss is 11.25%, leakage current (value of K) is 1.8 x 10(-4) mu A(.)mu F(-1.)V(-1), and the electrical properties are better than those specified in the national standard (GB/T 3136-1995) of FTa16-300 tantalum powder for capacitor.