Method of producing negative electrode, negative electrode, and lithium-ion secondary battery
AssigneeToyota Jidosha Kabushiki Kaisha
InventorAtsushi Sugihara
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Abstract
A method of producing a negative electrode includes at least the following (A) to (C): (A) mixing powder consisting of lithium titanate oxide particles, a binder, and a solvent to prepare a particle-dispersed liquid; (B) granulating powder consisting of graphite-based particles by using the particle-dispersed liquid to prepare wet granules; and (C) forming the wet granules into a negative electrode composite material layer to produce a negative electrode. The negative electrode composite material layer is formed so as to include the lithium titanate oxide particles in an amount not lower than 2 mass % and not higher than 15 mass % of the total amount of the graphite-based particles and the lithium titanate oxide particles.
Claims4
A method of producing a negative electrode of a lithium-ion secondary battery, comprising at least:
- mixing a powder consisting of lithium titanate oxide particles, a binder, and a solvent to prepare a particle-dispersed liquid;
- granulating a powder consisting of graphite-based particles by using the particle-dispersed liquid to prepare wet granules;
- and
- forming the wet granules into a negative electrode composite material layer to produce the negative electrode,
- the negative electrode composite material layer including the lithium titanate oxide particles in an amount not lower than 2 mass % and not higher than 15 mass % of a total amount of the graphite-based particles and the lithium titanate oxide particles.
Dependencies are inferred from the claim text.