| abstract |
A negative electrode comprising (A) particles having Si dispersed in SiO, and (B) a polyamide-imide resin which contains amide and imide groups in an amide/imide ratio of 25/75 to 99/1 and has a weight average molecular weight of 10,000-200,000 is suited for nonaqueous electrolyte secondary batteries. The electrode exhibits a high 1st cycle charge/discharge efficiency and improved cycle performance while maintaining a high battery capacity and a low volume expansion. |