| 摘要 |
Rechargeable cell, in the charged state, has a Li-contg. anode (I), solid cathode (II) and anhydrous organic electrolyte soln. (III) contg. a Li-contg. conductive salt (IV). The novel features are flat that (I) consists of a light metal in which the Li is incorporated by electrochemical alloying and (III) contains >=10 wt.% simple or substd. alkyl or aryl esters (V) of polybasic acids which, with (IV), forms on (I) an anticorrosive film of Li cpd. which is scarcely soluble in (III). (I) is based on Be, Mg, Ca, B, Al, Sc, C, Si or As (alloys) and pref. is an Al (alloy) contg. Li, the Al:Li molar ratio being =1 in the charged state. (I) has a support of Cu, Ni, stainless steel or Ti fleece, fabric, fibres or foil. (II) is based on CrOx (1.5 = x =3; produced by heating CrO3) or Tl (giving Tl halide on charging in solns. contg. halide). (III) is based on alkene carbonates (propylene, ethylene or butylene carbonate) and/or substd. alkyl or aryl carbonate, sulphate, sulphite, borate or phosphate esters. (IV) is LiClO4, LiCl, LiBr, LiI, LiBF4, LiPF6 and/or LiAsF6 in a concn. of under 1m/l. Harmful self-discharge is prevented. |
