Negative electrode active material for lithium ion secondary battery and method for producing the same
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsNatsumi Goto, Takashi Takeuchi, Masaki Hasegawa
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Abstract
A negative electrode active material for lithium ion secondary batteries of the present invention includes a lithium-titanium composite oxide that has a composition represented by Li4Ti5-xFexO12 (where x satisfies 0<x≦0.3) or Li4Ti5-yMnyO12 (where y satisfies 0<y≦0.3) and that has an average particle diameter of primary particles which is not less than 1 μm.
Claims5
A negative electrode active material for lithium ion secondary batteries, the negative electrode active material comprising a lithium-titanium composite oxide which has a composition represented by Li4Ti5-xFexO12 (where x satisfies 0<x≦0.3) or Li4Ti5-yMnyO12 (where y satisfies 0<y≦0.3) and in which primary particles have an average particle diameter not less than 1 μm.
Dependencies are inferred from the claim text.