Negative electrode for nonaqueous electrolyte secondary battery, and nonaqueous electrolyte secondary battery using same
AssigneeAESC Japan Ltd.
InventorsKazuhiro AKAGAWA, Chiaying LU, Risa SHIMOJI
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AssigneeAESC Japan Ltd.
InventorsKazuhiro AKAGAWA, Chiaying LU, Risa SHIMOJI
Estimating the term…
Provided is a negative electrode for nonaqueous electrolyte secondary battery, and the negative electrode active material includes a silicon-based active material (A) containing SiOx (where x is a number satisfying 0.5≤x≤1.6), a carbon-based active material (B) that forms secondary particles formed by aggregation of primary particles, and a carbon-based active material (C) consisting of primary particles different from the carbon-based active material (B). Specific surface areas of the silicon-based active material (A), the carbon-based active material (B), and the carbon-based active material (C) are SA[m2/g], SB[m2/g], and SC[m2/g], respectively, a maximum specific surface area value among these specific surface areas is Smax, and a minimum specific surface area value among these specific surface areas is Smin, where a value of Smax/Smin is 3 or less, and Smax is 3 or less.
A negative electrode for nonaqueous electrolyte secondary battery, which is a negative electrode for a nonaqueous electrolyte secondary battery,
Dependencies are inferred from the claim text.