NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a negative electrode for a lithium secondary battery with small irreversible capacity and low average discharge voltage. SOLUTION: A negative electrode for a lithium secondary battery is formed by absorbing lithium in a negative electrode active material. The negative electrode active material consists of 60-95% (by weight) graphite and 5-40% carbonaceous material. The carbonaceous material contains phosphorous, oxygen, and unavoidable impurities, and the content of the phosphorous is 0.01-10% based on the weight of the carbonaceous material and the content of the oxygen is 0.01-15%.