Patent ID: 8012614

Claim:
A non-aqueous electrolyte battery comprising a positive electrode, a negative electrode, and a non-aqueous electrolyte, wherein the positive electrode includes a high-capacity positive electrode portion with a plate area per capacity of smaller than 200 cm 2 /Ah, and a high-power positive electrode portion with a plate area per capacity of 200 cm 2 /Ah or larger, wherein: the high-capacity positive electrode portion contains an amount of a positive electrode active material in a layer on a current collector such that the plate area per capacity is smaller than 200 cm 2 /Ah, the high-power positive electrode portion contains an amount of a positive electrode active material in a layer on a current collector such that the plate area per capacity is 200 cm 2 /Ah or larger, and a difference in electrode plate area per capacity between the high-capacity positive electrode portion and the high-power positive electrode portion is 100 cm 2 /Ah or more, wherein the non-aqueous electrolyte battery has an electrode assembly of a wound structure formed by winding the positive electrode and the negative electrode one over the other, and the high-capacity positive electrode portion is arranged at an inner position of the electrode assembly than the high-power positive electrode portion.