NEGATIVE ELECTRODE MATERIAL FOR NONAQUEOUS SECONDARY BATTERY AND NONAQUEOUS SECONDARY BATTERY

摘要

An object is to provide a negative electrode material having a great discharge capacity. A non-aqueous secondary battery essentially comprises positive and negative electrodes, the negative electrode material including a negative electrode material containing 30 to 90% by weight of silicon and 10 to 70% by weight of carbon for the non-aqueous secondary battery, wherein the negative electrode material is obtained by heating silicon or a compound thereof at 600 to 1,500 DEG C under a non-oxidative atmosphere in the coexsitence with an organic material or a carbon material.