Abstract
Solid composite ionic conductors (CIC) with σ r.t. as high as 10 −2 S/cm are obtained by immobilizing solutions of lithium salts in aprotic solvents in inert, inorganic powders with a large specific surface area, such as pyrogenic silica. Cell capacities of Li|CIC|CuO, Li|CIC|FeS 2 and Li|CIC|MnO 2 cells compared with cells using conventional liquid organic electrolytes show increases between 11 and 126%. The lower polarization of a Li|CIC|polypyrrole cell proves that CICs can also be used for cells where cations and anions are involved in the cell reaction.
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