Patent ID: 7125630

Claim:
A non-aqueous electrolyte battery comprising: an cathode containing an cathode active material allowing lithium to insert/extract thereto and therefrom; an anode comprising an anode mixture layer having an anode active material which contains a first active material and/or a second active material, said first active material being capable of allowing lithium to insert/extract thereto and therefrom, and comprising a metal, an alloy or a compound reactive with lithium, and said second active material comprising a carbonaceous material allowing lithium to insert/extract thereto and therefrom; and a non-aqueous electrolyte containing an electrolytic salt, wherein said anode contains said first active material at least in an amount of 10 wt % of the total anode active material, and a packing ratio y/((ax+bz)/(a+b)) of said anode mixture layer falls within a range from 0.5 to 0.8, both ends inclusive, where “a” represents weight of said first active material, “x” represents true specific gravity of said first active material, “b” represents weight of said second active material, “z” represents true specific gravity of said second active material, and “y” represents density of said anode mixture layer.