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OwnerAtsushi Fukui, Yasuyuki Kusumoto +2inventors
InventorsAtsushi Fukui, Yasuyuki Kusumoto, Mariko Torimae, Hisaki Tarui
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A negative electrode for a lithium secondary battery obtained by sintering an active material layer on a current collector under a non-oxidizing atmosphere after the active material layer including primary particles of an active material containing silicon and/or a silicon alloy and a binder is formed on an electrically conductive metal foil as a current collector. A mean diameter of primary particles of the active material is less than 1 μm, the primary particles are dispersed uniformly in the active material layer, and the primary particles and the binder are uniformly mixed and distributed.
A negative electrode for a lithium secondary battery prepared by forming an active material layer comprising active material particles of silicon and/or a silicon alloy and a binder on a current collector comprising an electrically conductive metal foil, and sintering the active material layer on the current collector under a non-oxidizing atmosphere, wherein said active material particles are primary particles having a mean diameter of not greater than 1 μm, the primary particles are dispersed uniformly in the active material layer, and the primary particles and the binder are uniformly mixed and distributed.
A method for preparing a negative electrode for a lithium secondary battery comprising
Dependencies are inferred from the claim text.