Galvanic cell
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United States of America Patent
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Jul 25, 1995
Grant Date -
N/A
app pub date -
Sep 21, 1993
filing date -
Jan 21, 1992
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Abstract
A cell is obtained with use of a solid electrolyte prepared by dissolving a trifunctional terminal acryloyl-modified alkylene oxide polymer having a polymer chain represented by the following formula (1) and an electrolyte salt in a solvent, and then by crosslinking it by a radioactive ray irradiation and/or by heating. The solvent is used in a ratio of 220 to 950 weight % based on the above polymer. ##STR1## (R' is an alkyl group having 1 to 6 carbon atoms, R' is hydrogen or methyl group, and m and n are respectively 0 or an integer of at least 1 and m+n.gtoreq.35.) In a typical galvanic cell, a solid electrolyte combined with a positive electrode active material, which is obtained by mixing said trifunctional terminal acryloyl-modified alkylene oxide polymer with the electrolyte salt, the solvent and the positive electrode active material and crosslinking it by radioactive ray irradiation and/or heating, is used as a composite positive electrode and, between the positive electrode and a negative electrode, an electrode prepared by crosslinking a mixture of said trifunctional terminal acryloyl-modified alkylene oxide polymer, the electrolyte salt, the solvent and the positive electrode active material by radioactive ray irradiation and/or by heating is placed as a separator.
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