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Published online by Cambridge University Press: 28 February 2011
In Japan, some micro-batteries using solid electrolytes, such as silver ion, copper ion and lithium ion conductors are now under development for applying them to micro-devices, integrated-circuits and very-large-scaleintegration. For these purposes, inorganic crystalline and glassy electrolytes as well as polymeric electrolytes have been developed. For electric energy storage batteries, sodium ion conductors such as beta- or beta"- alumina have been developed as the electrolyte. A 1 MW sodium-sulfur battery demonstration power plant is to be constructed in Japan by the fall of 1991. To the fuel cell applications, oxide ion conductors or hydrogen ion conductors have chiefly been tried to be used, though solid electrolyte fuel cells are now at an early stage of development in Japan. Further, an AMTEC system for thermal energy to electrical energy conversion using beta•- alumina is under development in Japan. In this review paper, these battery applications of solid electrolytes in Japan are described briefly.