| http://www.w3.org/ns/prov#value | - ous polyolefin separator wherein the pores of the separator are filled with an electrolytic solution (see, for example, Examined JapanesePatent Application Publication No. 59-37292), there is a problem in that a polyolefin has extremely low ion permeability, so that the ion conductivity of the polyolefin separator (having pores simply filled with an electrolytic solution) is low ascompared to that
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