Electrolyte for electrochemical device

   
   

The invention relates to an electrolyte for an electrochemical device. This electrolyte includes a first compound that is an ionic metal complex represented by the general formula (1); and at least one compound selected from special second to fourth compounds, fifth to ninth compounds respectively represented by the general formulas A.sup.a+ (PF.sub.6.sup.-).sub.a, A.sup.a+ (ClO.sub.4.sup.-).sub.a, A.sup.a+ (BF.sub.4.sup.-).sub.a, A.sup.a+ (AsF.sub.6.sup.-).sub.a, and A.sup.a+ (SbF.sub.6.sup.-).sub.a, and special tenth to twelfth compounds, ##STR1## The electrolyte is superior in cycle characteristics and shelf life as compared with conventional electrolytes.

A invenção relaciona-se a um eletrólito para um dispositivo eletroquímico. Este eletrólito inclui um primeiro composto que seja um complexo ionic do metal representado pela fórmula geral (1); e ao menos um composto selecionado do segundo especial aos compostos do fourth, quintos a nonos compostos representados respectivamente pelas fórmulas gerais A.sup.a+ (PF.sub.6.sup.-).sub.a, A.sup.a+ (ClO.sub.4.sup.-).sub.a, A.sup.a+ (BF.sub.4.sup.-).sub.a, A.sup.a+ (AsF.sub.6.sup.-).sub.a, e A.sup.a+ (SbF.sub.6.sup.-).sub.a, e décimos a twelfth compostos especiais, ## do ## STR1 o eletrólito é superior em características do ciclo e na vida útil em comparação aos eletrólitos convencionais.

 
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