Chemistry: electrical current producing apparatus – product – and – Having earth feature
Patent
1995-02-21
1997-05-06
Kalafut, Stephen
Chemistry: electrical current producing apparatus, product, and
Having earth feature
252502, 252503, H07M 810
Patent
active
056269773
ABSTRACT:
Carbon aerogels used as a binder for granularized materials, including other forms of carbon and metal additives, are cast onto carbon or metal fiber substrates to form composite carbon thin film sheets. The thin film sheets are utilized in electrochemical energy storage applications, such as electrochemical double layer capacitors (aerocapacitors), lithium based battery insertion electrodes, fuel cell electrodes, and electrocapacitive deionization electrodes. The composite carbon foam may be formed by prior known processes, but with the solid particles being added during the liquid phase of the process, i.e. prior to gelation. The other forms of carbon may include carbon microspheres, carbon powder, carbon aerogel powder or particles, graphite carbons. Metal and/or carbon fibers may be added for increased conductivity. The choice of materials and fibers will depend on the electrolyte used and the relative trade off of system resistivty and power to system energy.
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Kaschmitter James L.
Mayer Steven T.
Pekala Richard W.
Carnahan L. E.
Kalafut Stephen
Regents of the University of California
Sartorio Henry P.
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