DISPERSION ELEMENT FOR NONAQUEOUS ELECTROCHEMICAL ELEMENT, MEMBER FOR NONAQUEOUS ELECTROCHEMICAL ELEMENT FABRICATED USING THE DISPERSION ELEMENT, AND NONAQUEOUS ELECTROCHEMICAL ELEMENT INCLUDING THE MEMBER

摘要

PROBLEM TO BE SOLVED: To provide a nonaqueous electrochemical element excellent in charge/discharge cycle characteristics.SOLUTION: A fine particle dispersion element for a nonaqueous electrochemical element includes a dispersion medium and at least one fine particle selected from the group consisting of a metal fine particle, a metal oxide fine particle and a carbonaceous fine particle, and contains a polyoxyalkylene compound represented by formula 1. {R-(OX)ni-}mQ...(1) Q represents a reaction residue obtained by removing a hydrogen atom from m primary hydroxy groups of a non-reducing disaccharide or trisaccharide; OX represents an oxyalkylene group having 2-4 carbon atoms; R represents an alkyl group having 1-4 carbon atoms and/or a hydrogen atom; ni, m and i represent an integer of 0-100, 2-4 and 1-m, respectively, while m ni's may be the same or different, but at least one of ni's is 1 or more; and the total number (Σni×m) of OX is an integer of 20-100.