| abstract |
A battery negative electrode has an electrical power collector, an active material layer, and an inorganic compound layer. The active material layer is formed on the current collector. The inorganic compound layer is formed on the surface of the active material layer. The general formula of the inorganic compound layer is represented by Li x PT y O z or Li x MO y N z . The compound which comprises an inorganic compound layer has lithium ion conductivity, and is excellent in moisture resistance. |