Electrolytes for electrochemical double layer capacitors
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United States of America Patent
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Dec 10, 2002
Grant Date -
N/A
app pub date -
Nov 16, 2000
filing date -
May 18, 1998
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Expired
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Abstract
Novel organic electrolytes comprising tetrafluoroborates and hexafluorophosphates of doubly charged cations of N,N-dialkyl-1,4-diazabicyclo[2.2.2]octanediium (DADACO) are disclosed, which have general formula (2), where R is the alkyl C.sub.1 -C.sub.4, and Y.sup.31 is a BF.sub.4.sup.- or PF.sub.6.sup.- anion. The invention also comprises a process for the preparation of said electrolytes comprising at least one compound of formula (2) and the use of compounds of formula (2) dissolved in an aprotic polar solvent or a mixture of such solvents as an electrolyte for an electrochemical double layer capacitor. ##STR1##
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