Chemistry: electrical current producing apparatus – product – and – Having specified venting – feeding or circulation structure – Venting structure
Reexamination Certificate
2006-06-06
2006-06-06
Alejandro, Raymond (Department: 1745)
Chemistry: electrical current producing apparatus, product, and
Having specified venting, feeding or circulation structure
Venting structure
C429S086000, C429S057000, C429S185000, C429S176000
Reexamination Certificate
active
07056617
ABSTRACT:
A non-hermetically sealed, electrochemical power source, includes a first electrode, a second electrode, a separator between the first electrode and the second electrode, and a membrane in fluid communication with an environment external to the battery. The second electrode is between the separator and the membrane. The membrane includes a first portion having a different property, e.g., density, porosity, mass transport resistance, thickness, or gas permeability, than a second portion of the membrane. Methods of designing an electrochemical cell cartridge are also disclosed.
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Kelsey G. Steven
Kouznetsova Yelena
Makovetski Boris
Motupally Sathya
O'Neill Jonathan
Alejandro Raymond
Fish & Richardson P.C.
The Gillette Company
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