Ion exchange membrane and process for producing the same
AssigneeJapan Atomic Energy Research Institute
InventorsIsao Ishigaki, Takanobu Sugo, Jiro Okamoto
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Abstract
A separator membrane for use in secondary alkali batteries having a non-ion selective hydrophilic group and ion exchange group said membrane having an electrical resistance which, when said membrane is heated in 12NaOH for 30 minutes at a temperature between about 20.degree. and 100.degree. C., varies from the initial value for 20.degree. C. by an amount between 10% and about 24% and the process thereof are herein disclosed.
Claims5
A separator membrane for use in secondary alkali batteries, said membrane comprising a hydrocarbon-or non-fluorine halogen-containing polymer substrate having a non-ion selective hydrophilic group and ion exchange group, said membrane having an electrical resistance which, when said membrane is heated in 12N NaOH for 30 minutes at a temperature between about 20.degree. and 100.degree. C., varies from the initial value for 20.degree. C. by an amount between 10% and about 24%.
Dependencies are inferred from the claim text.