| 摘要 |
PURPOSE:To enhance the overdischarge characteristics by using a mixture solvent consisting of an organic electrolyte solvent to which at least 1,3- dioxolane-2,5-dione is added. CONSTITUTION:A mixture solvent containing 1,3-dioxolane-2,5-dione is used to the solvent for organic electrolyte. This provides a charge/discharge characteristics equivalent to or better than when a conventional mixture solvent of PC or EC and ethers is used, and even an overdischarge cases less dissolution of the solvent, to allow sufficient charging/discharging thereafter. Here mix proportion of 1,3-dioxolane-2,5-dione to the other solvent shall be 1:10 thru 30:10 mol. |
