| 摘要 |
PURPOSE:To enhance the conductivity of the electrolytic solution in a battery which employs a calcium negative electrode, by using calcium as a negative electrode and using as an organic electrolytic solution a mixture solution of acetonitrile and dimethylformamide into which a specified solute is dissolved. CONSTITUTION:A battery is formed by combining a calcium negative electrode 1, a positive electrode 3 through a separator and an organic electrolytic solution 7; the former calcium negative electrode 1 is, for example, a calcium plate to which nickel net is pressed to touch, then in addition, a nickel lead plate 2 is welded to stick to it; a positive electrode 3 is, for example, a nickel net to which heat-treated manganese dioxide, acetylene black, and binder are pressed to touch, then in addition, a nickel plate 4 is mounted to it. The preferable electrolytic solution is a mixed solvent in which acetonitrile and dimethyl amide are mixed in the equal volume proportion, added by 1mol/l of a solute of tetrafluoroborate selected from Ca(BF4)2, LiBF4 and NaBF4. Thus, a novel battery system which is used in a wide range of temperature and empoys an electrolytic solution with excellent conductivity can be obtained. |
