Evaluation of pore size deformation in Hovosorb(R) battery separators

The porosity of nonwoven separator materials can decrease when subjected to pressure during assembly into a battery, thus affecting performance. A compression porometer that can simulate the compaction experienced in actual practice by separator mats is described. Present and future capabilities are...

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Bibliographic Details
Main Authors: Perna, V.F., Dixon, J.S., Zguris, G.C.
Format: Conference Proceeding
Language:English
Subjects:
Assembly
Battery charge measurement
Compaction
Data analysis
Knee
Optical fiber testing
Particle separators
Pressure gauges
Scanning electron microscopy
Shape
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Description
Summary:The porosity of nonwoven separator materials can decrease when subjected to pressure during assembly into a battery, thus affecting performance. A compression porometer that can simulate the compaction experienced in actual practice by separator mats is described. Present and future capabilities are given and measurements of pore-related parameters versus compression are presented. The engineering option of pre-deformation of the separator is considered.
ISSN:1089-8182
DOI:10.1109/BCAA.1998.653859