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New battery electrolytes for low and high temperatures: Liquid and solid ammoniates for high energy batteries: I. Sodium iodide and lithium perchlorate ammoniates

Journal Article · · J. Electrochem. Soc.; (United States)
DOI:https://doi.org/10.1149/1.2095662· OSTI ID:6941326
Some ammoniates of lithium or sodium salts do not dissolve Li or Na and possess a low ammonia pressure at room temperature. This family of ammoniates can be used as liquid or solid electrolytes for lithium or sodium batteries without any diaphragm between the anodic material (Li or Na) and the cathodic material. In this work two ammoniates LiClO/sub 4/ . 4NH/sub 3/ and NaI . 3.3NH/sub 3/ both possessing rho(NH/sub 3/) < 760 Hg mm at +20/sup 0/C and prepared at room temperature were used as electrolytes. High performance batteries have been tested. For instance with LiClO/sub 4/ . 4NH/sub 3/ and the couple ''LiMnO/sub 2/'' at +20/sup 0/C: open-circuit voltage = 3V and short-circuit current density = 1A cm/sup -2/ (at -32/sup 0/C this last value becomes 0.05A cm/sup -2/) for an electrode distance = 0.2 cm.
Research Organization:
Laboratoire de Chimie Inorganique et Electrochimie, ESPCI, 75231 Paris Cedex 05 (FR)
OSTI ID:
6941326
Journal Information:
J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 135:3; ISSN JESOA
Country of Publication:
United States
Language:
English