Electrolysis: processes – compositions used therein – and methods – Utilizing electrolysis to form battery electrode active... – Zinc-containing active material
Patent
1995-05-11
1996-11-26
Valentine, Donald R.
Electrolysis: processes, compositions used therein, and methods
Utilizing electrolysis to form battery electrode active...
Zinc-containing active material
205 74, 205 78, 205111, 205109, C25D 120, C25D 700
Patent
active
055781837
ABSTRACT:
Uniform zinc pellets are formed for use in batteries having a stationary or moving slurry zinc particle electrode. The process involves the cathodic deposition of zinc in a finely divided morphology from battery reaction product onto a non-adhering electrode substrate. The mossy zinc is removed from the electrode substrate by the action of gravity, entrainment in a flowing electrolyte, or by mechanical action. The finely divided zinc particles are collected and pressed into pellets by a mechanical device such as an extruder, a roller and chopper, or a punch and die. The pure zinc pellets are returned to the zinc battery in a pumped slurry and have uniform size, density and reactivity. Applications include zinc-air fuel batteries, zinc-ferricyanide storage batteries, and zinc-nickel-oxide secondary batteries.
REFERENCES:
patent: 3323951 (1967-06-01), Kreiselmaier
patent: 3753779 (1973-08-01), Franko et al.
patent: 4456508 (1984-06-01), Torday et al.
patent: 5453293 (1995-09-01), Beane et al.
Grzybicki Daryl S.
Regents of the University of California
Sartorio Henry P.
Valentine Donald R.
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