| abstract |
Non-aqueous electrolyte secondary having high initial charge / discharge efficiency and excellent cycle characteristics while maintaining high battery capacity and low volume expansion coefficient when particles in which Si is dispersed in SiO 2 are used as an active material Provided are a negative electrode effective as a negative electrode for a battery and a lithium ion secondary battery using the negative electrode. A negative electrode for a non-aqueous electrolyte secondary battery containing (A) particles in which Si is dispersed in SiO 2 and (B) a polyamideimide resin, wherein the (B) polyamideimide resin is an amide A negative electrode for a non-aqueous electrolyte secondary battery, wherein a ratio of an amide group and an imide group represented by a group / imide group is 25/75 to 99/1 and a weight average molecular weight is 10,000 or more. [Selection figure] None |