NEGATIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY AND NEGATIVE ELECTRODE SHEET MANUFACTURED FROM IT

摘要

PROBLEM TO BE SOLVED: To provide a negative electrode material for a lithium secondary battery and a negative electrode sheet with a high charge acceptance and with little swelling of an electrode.

SOLUTION: Of the powder-like negative electrode material with a structure in which a carbonaceous matter with inferior crystallinity than a graphite-system carbonaceous matter is coated on a graphite system carbonaceous matter, a resistance (R) of the negative electrode for the lithium secondary battery made of the negative material and a binder is to be not more than 6.5 ohm, and a double-layer capacity (Cdl) at a negative electrode/electrolyte solution interface is to be within the range of 7.0×10-4F or more or less than 10×10-4F.

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