Reference

Battery with improved discharge characteristics

Battery with improved discharge characteristics. Morita, Akiyoshi; Iijima, Takashi (Matsushita Electric Industrial Co., Ltd., Japan). Japan. Kokai JP 52022721 21 Feb 1977 Showa, 3 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: H01M006-16. APPLICATION: JP 75-98891 13 Aug 1975. DOCUMENT TYPE: Patent CA Section: 52 (Electrochemical, Radiational, and Thermal Energy Technology) A soln. obtained by dissolving THF and ethyl chloroformate in .gamma.-butyrolactone and/or propylene carbonate is used as electrolyte solvent for batteries having light-metal anodes and graphite fluoride cathodes. Such batteries have improved discharge characteristics and storage stability. Thus, 1 g of a :10 graphite fluoride-acetylene black-tetrafluoroethylene and hexafluoropropylene polymer mixt. was compacted with a Ti grid to obtain a cathode, while an anode was made from a Li sheet and Ni grid. A battery was assembled from the cathode, anode, and an electrolyte of M LiBF4 [14283-07-9] in a 2:1:1 mixt. of .gamma.-butyrolactone-THF-ethylene chloroformate. The battery had good storage stability. No redn. in discharge voltage was obsd. even after storage at 70.degree. for 1 month.

Organic-electrolyte battery

Organic-electrolyte battery. Morita, Akiyoshi; Iijima, Takashi (Matsushita Electric Industrial Co., Ltd., Japan). Japan. Kokai JP 52022720 21 Feb 1977 Showa, 3 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: H01M006-16. APPLICATION: JP 75-98890 13 Aug 1975. DOCUMENT TYPE: Patent CA Section: 52 (Electrochemical, Radiational, and Thermal Energy Technology) A soln. obtained by dissolving THF and crotononitrile in .gamma.-butyrolactone and/or propylene carbonate is used as electrolyte solvent for batteries having light-metal anodes and graphite fluoride cathodes. Such batteries have improved discharge characteristics and storage stability. Thus, 1 g of a :10 graphite fluoride-acetylene black-tetrafluoroethylene and hexafluoropropylene polymer mixt. was compacted with a Ti grid to obtain a cathode, while an anode was made from Li sheet and Ni grid. A battery was assembled from the cathode, anode and an electrolyte of M LiBF4 [14283-07-9] in a 2:1:1 mixt. of .gamma.-butyrolactone-THF-crotononitrile. When the battery was discharged at -20.degree. and 4 mA, its terminal voltage was .apprx.2.1 V regardless of storage at 70.degree. for 1 month.