Positive electrode for nonaqueous electrolyte secondary batteries, and nonaqueous electrolyte secondary battery
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsKatsuya Inoue, Takeshi Ogasawara, Yoshinori Aoki, Youichirou Uka
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Abstract
A positive electrode for nonaqueous electrolyte secondary batteries according to the present invention is provided with a positive electrode collector and a positive electrode mixture layer that is formed on the surface of the positive electrode collector. The positive electrode mixture layer contains at least carbon fibers and a positive electrode active material that contains a lithium transition metal composite oxide; and the lithium transition metal composite oxide has a layered rock salt structure, while containing at least Ni, Al and Ca, but not substantially containing Co.
Claims12
A positive electrode for a non-aqueous electrolyte secondary battery, comprising:
- a positive electrode current collector;
- and
- a positive electrode mixture layer formed on a surface of the positive electrode current collector, wherein
- the positive electrode mixture layer includes at least:
- a positive electrode active material including a lithium-transition metal composite oxide;
- and a carbon fiber,
- the lithium-transition metal composite oxide has a layered rock-salt structure, and contains substantially no Co and contains at least Ni, Al, and Ca,
- a content of Co in the lithium-transition metal composite oxide is 0.01 mol % or less based on a total amount of metal elements excluding Li, and
- a content of Ca in the lithium-transition metal composite oxide is 0.5 mol % or less based on a total amount of metal elements excluding Li.
Dependencies are inferred from the claim text.