ELECTRIC STORAGE ELEMENT
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United States of America Patent
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Issued Date -
Apr 15, 2010
app pub date -
Mar 21, 2008
filing date -
Mar 22, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
This invention provides a high-capacitance electric storage element which, by virtue of the adoption of a metal electrode, can realize a large specific capacitance, a high energy density, and a higher withstanding voltage (not less than 6.0 V) than the prior art. The electric storage element comprises a metal electrode and a polymeric electrolyte-containing electrolyte. The electric storage element is characterized in that the metal electrode is formed so as to constitute a pair electrode, the metal electrode is in contact with the electrolyte, the metal electrode is provided on the surface and within the polymeric electrolyte, the electrolyte contains an amphiphatic polyether compound and/or a lipophilic compound, or a hydrophilic polyether compound and/or glycerin carbonate which are liquid under room temperature and atmospheric pressure conditions, and the electrolyte is in the state of being swollen with the amphiphatic polyether compound and/or the lipophilic compound, or the hydrophilic polyether compound and/or glycerin carbonate.
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