Patent ID: 8877384
Filing Date: 2014-11-04
Classification: H01M,Y02E,Y02P,Y02T

Abstract:
1. A negative electrode active material of lithium secondary battery, comprising: coke comprising at least one green coke and at least one calcined coke, the green coke and the calcined coke being present in a mass ratio of 90:10 to 10:90, the green coke comprising one or more selected from the group consisting of a petroleum-derived green coke and a coal-derived green coke, and the calcined coke comprising one or more selected from the group consisting of a petroleum-derived calcined coke and a coal-derived calcined coke; a phosphorous compound comprising phosphorous, the phosphorous and the coke being present in a ratio of 0.1:100 to 6.0:100 parts by mass; and a boron compound comprising boron, the boron and the coke being present in a ratio of 0.1:100 to 6.0:100 parts by mass.