| 摘要 |
PURPOSE:To provide a lithium battery excellent in charge/discharge efficiency by coating a surface of a carbon negative pole with a coating material having a specific nature. CONSTITUTION:This lithium battery is used with a carbon negative pole whose surface is at least partly coated with a coating material capable of permeating a lithium ion further with electron conductivity less than 10<-5>S/cm. As the coating material, for instance, a high molecular material, high molecular material compound containing a lithium compound, ceramics, etc., are listed, but of the materials, aliphatic polyether, aliphatic polyester, polythioether, polyethylenemine, etc., which are ion conductive polymer, are particularly preferable. A mean film thickness of the coating material is preferable 100Angstrom or more and 50 micron or less. |
