| 摘要 |
1,199,220. Non-aqueous electrolytes; secondary cells. SOC. DES ACCUMULATEURS FIXES & DE TRACTION. 14 Nov., 1968 [15 Nov., 1967], No. 54170/68. Heading H1B. An electrolyte for secondary cells comprises a solution of a salt in R-CO 2 R<SP>1</SP> wherein R is a halogen atom or a halogenated methyl or halogenated ethyl group and R<SP>1</SP> is a methyl or ethyl group. A secondary cell is exemplified with a U-shaped Li anode enveloping a sintered copper disc (cathode) with an electrolyte of LiAlCl 4 in methyl chloroformate in which the positive active material in the charged state is CuCl 2 . Other esters specified are methyl chloroacetate and bromoformate and ethyl chloroformate and bromoformate. LiAlBr 4 may be used as solute in the bromo-esters. |
