Patent ID: 8758938

Claim:
A negative electrode for a lithium secondary battery, comprising: a negative-electrode mixture, comprising: a binder material; a negative-electrode active material being a layered structural body that includes an organic framework layer and an alkali metal element layer, the organic framework layer containing an aromatic compound that has a structure with two or more aromatic rings, the aromatic compound being in the form of dicarboxylate anions, the alkali metal element layer containing an alkali metal element that is coordinated with oxygen in the carboxylate anions to form a framework, and the negative-electrode active material having a specific surface area of Sx (m 2 /g) and an average particle size of Lx (μm); a fibrous conductive material having a specific surface area of Sy (m 2 /g) and an average length of Ly (μm); and a granular conductive material having a specific surface area of Sz (m 2 /g) and an average particle size of Lz (μm), wherein: letting the negative-electrode active material content be X, letting the fibrous conductive material content be Y, and letting the granular conductive material content be Z, Log((SyY+SzZ)/SxX×10 −1 )×Log((LyY+LzZ)/LxX×10 1 ) is defined as an electrode parameter, and the electrode parameter satisfies expression (1): Log(( SyY+SzZ )/ SxX× 10 −1 )×Log(( LyY+LzZ )/ LxX× 10 1 )≧0 expression (1); X is from 50 parts by mass to 80 parts by mass with resect to 100 parts by mass of the total negative-electrode mixture; Sx is from 0.1 m 2 /g to 10 m 2 /g; Lx is from 0.5 μm to 20 μm; Y is from 5 parts by mass to 15 parts by mass with respect to 100 parts by mass of the total negative-electrode mixture; Sy is from 1 m 2 /g to 100 m 2 /g; Ly is from 5 μm to 100 μm; Z is from 5 parts by mass to 15 parts by mass with respect to 100 parts by mass of the total negative-electrode mixture; Sz is from 10 m 2 /g to 500 m 2 /g; and Lz is from 0.005 μm to 5 μm.