Effects of Neodymium Oxide on Electrochemical Properties of V_2O_5 Cathodes for Li/V_2O_5 Secondary Batteries

摘要

A new type of V_2O_5/cai'bon/Nd_2O_3 composite was prepared by mixing vanadium oxide hydrosol, acetone, carbon, and Nd_2O_3 powder together. Electrodes made of this were tested at a the high rate of discharge/charge to learn their electrochemical properties. With Nd_2O_3 added, the composite showed improvements on both discharge capacity and cycle durability discharge capacity, and the rate capability was also elevated. This enhanced rate capability and cycle life were probably caused by the increase in porosity of open pores and the short diffusion distance for lithium ion.