| abstract |
(57) Abstract: A non-aqueous secondary battery including a negative electrode using silicon or a compound thereof as a negative electrode active material, having high capacity and excellent charge-discharge cycle characteristics. SOLUTION: It is composed of a sintered body containing silicon or a compound thereof as a negative electrode active material, and when fully charged, 200 to 1 g of silicon. A battery is formed using a negative electrode that has absorbed 800 mAh of lithium. |