Gs Yuasa International Ltd.

Yasushi Uebo

Keisuke Anami

A positive electrode for a nonaqueous electrolyte secondary battery according to the present invention includes particles A of a lamellar type lithium transition metal oxide and particles B of a spinel type lithium transition metal oxide, as a positive active material, at a ratio within the range of A:B=20:80 to 80:20 (weight ratio), in which a particle size distribution of the positive active material has a peak based on the particles A and a peak based on the particles B within the range of 1 to 50 &#x3bc;m. In the integrated distribution curve of the particle diameter, a particle diameter A(D50) at a degree of accumulation of the particles A of 50% and a particle diameter B(D50) at a degree of accumulation of the particles B of 50% satisfy the following expression (1), and a particle diameter A(D95) at a degree of accumulation of the particles A of 95% and a particle diameter B(D5) at a degree of accumulation of the particles B of 5% satisfy the following expression (2):(50)&#x2212;(50)&#x2267;5 &#x3bc;m&#x2003;&#x2003;Expression (1)(5)&#x3e;(95)&#x2003;&#x2003;Expression (2).

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Kyoto, Japan

Yasushi Uebo