Positive active material for primary batteries having high energy density
AssigneeSaft-Societe des Accumulateurs Fixes et de Traction
InventorJean-Paul Gabano
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Abstract
The invention relates to a positive active material for primary batteries having high energy density and constituted by a metal salt whose cation is monovalent silver and whose complex anion is composed of a central atom and ligands, for example a ferrocyanide or a ferricyanide. According to the invention, the ligands are at least partly constituted by monovalent anions. Application is to lithium primary batteries of the so-called button type or other conventional constructions useful particularly as energy sources for watches or heart stimulators or pacemakers wherein essential requirements are substantially uniform discharge voltage from inception of use to exhaustion and relatively long life.
Claims10
Primary batteries of high energy density useful as an energizing source for devices requiring substantial uniformity of discharge voltage throughout a relatively long life comprising a negative electrode constituted by lithium, an electrolyte solution comprising an organic solvent having dissolved therein an ion-forming salt and a positive electrode comprising positive active material constituted by a metal salt whose cation is monovalent silver and where complex anion is selected from the group consisting of silver ferrocyanide and silver ferricyanide.
A primary battery of high energy density useful as the energizing source for devices requiring substantial uniformity of discharge voltage throughout a relatively long life, whose negative electrode is constituted by lithium and whose electrolyte is a solution comprising an organic solvent having dissolved therein an ion-forming salt and wherein its positive active material is selected from the group consisting of silver ferrocyanide and silver ferricyanide.
Dependencies are inferred from the claim text.