| 摘要 |
PURPOSE:To reduce the danger such as firing or inflammation by solving an electrolyte in an organic solvent containing at least one kind of a group of organic silicon heterocyclic compounds containing the silicon element in the molecule for use as an organic electrolyte. CONSTITUTION:An alkali metal is used for a negative electrode, a solid active material is used for a positive electrode, and an electrode is solved in an organic solvent containing an organic silicon heterocyclic compound expressed by the formula I group for use as the electrolyte. Since the nonflammable silicon element is contained, the flash point and the thermal decomposition temperature are high, and the danger such as firing or inflammation can be avoided when a battery is heated due to an abnormal charge/discharge or a short circuit. This electrolyte has small surface tensile, the wettability to positive/negative electrode materials is good, it can satisfactorily infiltrate into fine grain gaps, the contact resistance with electrodes is reduced, high electromotive force and a large discharge capacity are obtained, and the battery can be charged. |
