Kabushiki Kaisha Toshiba

Noikazu Osada

Takashi Kuboki

Yasuyuki Hotta

Tomokazu Morita

Toshiro Hiraoka

Takayuki Fukasawa

Kenji Essaki

There is provided a negative electrode material for non-aqueous electrolyte secondary batteries, the negative electrode material being a silicon oxide represented by the composition formula, SiO, containing silicon and silicon oxide, in which x satisfies the relation of 0.1&#x2266;x&#x2266;0.8; the silicon oxide contains crystalline silicon; among the particles of crystalline silicon having a diameter of 1 nm or greater, the proportion by number of particles having a diameter of 100 nm or less is 90% or greater; and the BET specific surface area of the silicon oxide is larger than 100 m/g.

Negative electrode material for non-aqueous electrolyte secondary battery, negative electrode active material for non-aqueous electrolyte secondary battery, and non-aqueous electrolyte secondary battery

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Tokyo, Japan

Noikazu Osada