Li/TiS_2蓄电池中碳酸丙二醇酯溶剂的电化学夹层

ELECTROCHEMICAL INTERCALATION OF PROPYLENE CARBONATE(PC)SOLVENT FOR RECHARGEABLE Li/TiS_2 CELL

用 X 射线衍射研究了常温 Li/TiS_2蓄电池在充放电循环时碳酸丙二醇酯(PC)往 TiS_2中的夹层行为。PC 夹层的条件是在电解液中因离子的存在而产生的电场梯度。它是在使用1M LiClO_4—PC 电解质的 Li/TiS_2电池中头几次充放电循环时阴极利用率降低的主要原因。

The intercalary behaviour of propylene carbonate in TiS_2 in the charge-discharge process of Li/TiS_2 secondary cell at ambient temperature was inves-tigated by X-ray diffraction.As the condition of PC to intercalate into TiS_2,there must be an electric field gradient caused by Li^+ ions in electrolyte solu-tion.This is one of the reason of low utilization of cathode in a Li/TiS_2cell with 1M LiClO_4-PC electrolyte in its initial charge-discharge cycles.