Cathode coating dispersion
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United States of America Patent
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Jun 3, 2003
Grant Date -
Oct 17, 2002
app pub date -
Jan 9, 2001
filing date -
Jan 9, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
This invention relates to a graphite and/or carbon black-containing cathode coating dispersion which is suitable for battery production. The dispersion is water, acid and alkali resistant and also electrically conductive when coated on cathode surfaces. The dispersion is a water-based system which contains a binder which is an epoxy resin and is cured with an amine curative. The dispersion is maintained as a two-pot compound wherein the epoxy dispersion is mixed with an amine curative at the time of application. The epoxy resins are preferably a Bisphenol A or Bisphenol F Epichlorohydrin based epoxy or epoxy novalac.
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