Non-aqueous electrolyte secondary battery having a negative electrode mixture multilayer coating
AssigneePanasonic Energy Co., Ltd.
InventorsAkihiro Katogi, Takamitsu Tashita, Fumikazu Mizukoshi, Sho Urata
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AssigneePanasonic Energy Co., Ltd.
InventorsAkihiro Katogi, Takamitsu Tashita, Fumikazu Mizukoshi, Sho Urata
Estimating the term…
A non-aqueous electrolyte secondary battery provided with a positive electrode, a negative electrode, and a non-aqueous electrolyte. The negative electrode includes a negative electrode current collector and a negative electrode mixture layer formed on the surface of the negative electrode current collector. The negative electrode mixture layer includes a first negative electrode mixture layer opposite to the negative electrode current collector, and a second negative electrode mixture layer laminated on the surface of the first negative electrode mixture layer. The negative electrode mixture layer includes graphite particles and a highly dielectric material having a higher dielectric constant than the graphite particles. The porosity between the graphite particles in the second negative electrode mixture layer is greater than in the first negative electrode mixture layer. The content proportion of the highly dielectric material in the first negative electrode mixture layer is greater than in the second negative electrode mixture layer.
A non-aqueous electrolyte secondary battery comprising:
Dependencies are inferred from the claim text.