Materials useful as electrolytic solutes
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United States of America Patent
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Apr 2, 2002
Issued Date -
N/A
app pub date -
Sep 7, 1999
filing date -
Feb 3, 1998
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Abstract
The invention concerns novel ionic compounds with low melting point whereof the onium type cation having at least a heteroatom such as N, O, S or P bearing the positive charge and whereof the anion includes, wholly or partially, at least an ion imidide such as (FX.sup.1 O)N.sup.- (OX.sup.2 F) wherein X.sup.1 and X.sup.2 are identical or different and comprise SO or PF, and their use as solvent in electrochemical devices. Said composition comprises a salt wherein the anionic charge is delocalized, and can be used, inter alia, as electrolyte.
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