| 摘要 |
The disclosed anode material, which is provided as the anode material of a low-cost non-aqueous electrolyte secondary battery, and which suppresses the amount of high-cost Co that is used, contains three types of powdered material, which respectively are alloy material A, alloy material B, and a conductive material. Alloy material A contains an alloy having a CoSn2 structure containing Co, Sn, and Fe, and the amount of Sn contained is at least 70.1 mass% and less than 82.0 mass% of alloy material A. Alloy material B contains Co3Sn2, has a lower discharge capacity than alloy material A, and the ratio (RB) of the mass of alloy material B to the total of the mass of alloy material A and the mass of alloy material B is greater than 5.9% and less than 27.1%. The amount of conductive material contained is at least 7 mass% and no greater than 20 mass% of the total of alloy material A, alloy material B, and the conductive material. The exothermic onset temperature obtained by means of differential scanning calorimetry of this anode material is less than 375.4°C. |
