| 摘要 |
PURPOSE:To prevent voltage drop in the initial stage of discharge, especially large voltage drop, which instantaneously appears immediately after the start of discharge, even in the large current discharge of a battery after storage by adding the polymer of an oxygen-containing organic silane compound to an electrolyte. CONSTITUTION:The polymer of an oxygen-containing organic silane compound is added to an electrolyte. This silane compound polymer is taken-in on the surface of a lithium electrode, and a lithium chloride film formed is made coarse. Lithium in the negative electrode is easily converted into lithium ion even in the large current discharge of a battery stored at high temperature or for a long time. The diffusion of lithium ions from the negative electrode to the electrolyte is smoothly conducted without any obstruction by the lithium chloride film. Hence, activation polarization and concentration polarization are decreased and the voltage drop in the initial stage of discharge is prevented. |
