Patent ID: 8431273

Claim:
A non-aqueous electrolyte battery comprising: an electrode group comprising a positive electrode, a negative electrode and a separator disposed between the positive electrode and negative electrode; and a non-aqueous electrolyte, wherein, the negative electrode comprises a current collector and a porous negative electrode layer formed on the current collector and containing a lithium compound particles as an active material and binder, a distribution of grain size in the lithium compound particles has a peak at a grain size of 0.3 to 2 μm and a peak at a grain size exceeding 2 μm and less than 10 μm, and relation 0.2≦(b/a)≦1.0 is established between maximum frequency (a) in the range of 0.3 to 2 μm and maximum frequency (b) in the range exceeding 2 μm and less than 10 μm, the binder is contained in the porous negative electrode layer in an amount of 2 to 7% by weight, the porous negative electrode layer has pores at least in the binder and between the lithium compound particles and the binder, and the pores in the porous negative electrode layer are distributed to form a first peak at a pore diameter of 0.04 to 0.15 μm and a second peak at a pore diameter of 0.8 to 6 μm in the relation between the pore diameter and log differential intrusion obtained in the mercury press-in method.