| 摘要 |
PURPOSE:To improve voltage drop in initial discharge stage and increase discharge capcity by adding to a positive electrode noncovalent bond graphite intercalation compound intercalating metal fluoride and fluorine between graphite layers. CONSTITUTION:A light metal as a negative active mass, nonaqueous solution prepared by dissolving an inorganic salt in an organic solvent as an electrolyte, and graphite fluoride as a positive active mass are used. Noncovalent bond graphite intercarlation compound intercalating metal fluoride and fluorine between graphite layers is added to the positive electrode. Graphite fluoride having larger electrochemical equivalent is used as a main active mass, and CeF(MFm)n having good conductivity and reactivity as active mass, and high potential is added to the positive electrode, and a battery is assembled. Removal or decrease of nonreactive conductive mass, capacity increase by discharge reaction of CeF(MFm)n, and mixed potential of both active mass improve voltage performance in initial discharge stage. Graphite fluoride is nonconductive before discharge but becomes conductive by discharge inorder to form graphite, then conductivity of the positive electrode is increased. |
