ANODE ACTIVE MATERIAL FOR ELECTROCHEMICAL DEVICE

摘要

The present invention relates to an anode active material for an electrochemical device and, in particular, to an electrochemical device including secondary particles produced by making first particles globular. The first particles and the second particles are titanium dioxide of which the surfaces are coated with conductive carbon, and has the chemical composition represented by the chemical formula 1: xC + (1-x)(Ti1-aMaO2) (1) where 0 < x < 0.1, 0 ≤a < 0.1 and M is a metal, metalloid, alkali metal, or alkali earth metal element stable in a four-coordinated structure composed of oxygen. [Reference numerals] (AA) Comparative example 1;(BB) Example 1