The present invention provides a proton conducting polymer which provides proton conductivity without humidification and is suitable for electrochemical device materials such as solid electrolytes for fuel cells and electrolytes for batteries. The proton c...

A negative electrode active material of lithium secondary battery includes: at least one of a petroleum-derived green coke and a coal-derived green coke, and at least one of a petroleum-derived calcined coke and a coal-derived calcined coke within a mass r...

Green coke from coal and/or petroleum and calcined coke from coal and/or petroleum are blended using a weight ratio between 90:10 and 10:94, and for each 100 parts by weight of the resulting coke blend, 0.1 to 6.0 parts by weight of a phosphor compound and...

Abstract: Green coke from coal and/or petroleum and calcined coke from coal and/or petroleum are blended using a weight ratio between 90:10 and 10:90, and the renting coke material is fired to produce a novel anode active material for lithium secondary bat...

This invention relates to a graphite material for negative electrode of lithium secondary battery. This graphite material is obtained by carbonizing the pulverized green coke to yield coke, adding one kind or more of boron or a compound thereof to the coke...