Control of Volume Resistivity in Inorganic‐Organic Separators | Zendy

D. W. Sheibley | Zendy; Michelle A. Manzo | Zendy

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Control of Volume Resistivity in Inorganic‐Organic Separators

Author(s) -

D. W. Sheibley,

Michelle A. Manzo

Publication year - 1980

Publication title -

journal of the electrochemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.258

H-Index - 271

eISSN - 1945-7111

pISSN - 0013-4651

DOI - 10.1149/1.2129473

Subject(s) - microporous material , coating , separator (oil production) , materials science , electrical resistivity and conductivity , chemical engineering , filler (materials) , composite material , plasticizer , polymer , mineralogy , chemistry , physics , electrical engineering , thermodynamics , engineering

Control of resistivity in NASA inorganic-organic separators is achieved by incorporating small percentages of high surface area, fine particle silica with other ingredients in the separator coating. The volume resistivity is predictable from the surface area of filler particles in the coating. The approach is applied to two polymer- plasticizer -filler coating systems, where the filler content of each is below the generally acknowledged critical pigment volume concentration of the coating. Application of these coating systems to 0.0254 cm thick (10-mil) fuel cell grade asbestos sheet produces inexpensive, flexible, microporous separators that perform as well as the original inorganic-organic concept, the Astropower separator.

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