Provided are a polymeric electrolyte or a nonaqueous electrolyte that can
improve a transport rate of charge carrier ions by adding a compound
having boron atoms in the structure, preferably one or more selected from
the group consisting of compounds represented by the following general
formulas (1) to (4), and an electric device such as a cell or the like
using the same. ##STR00001## wherein R.sup.11, R.sup.12, R.sup.13,
R.sup.14, R.sup.15, R.sup.16, R.sup.21, R.sup.22, R.sup.23, R.sup.24,
R.sup.25, R.sup.26, R.sup.27, R.sup.28, R.sup.31, R.sup.32, R.sup.33,
R.sup.34, R.sup.35, R.sup.36, R.sup.37, R.sup.38, R.sup.39, R.sup.310,
R.sup.41, R.sup.42, R.sup.43, R.sup.44, R.sup.45, R.sup.46, R.sup.47,
R.sup.48, R.sup.49, R.sup.410, R.sup.411 and R.sup.412 each represent a
hydrogen atom, a halogen atom or a monovalent group, or represent groups
bound to each other to form a ring, and Ra, Rb, Rc and Rd each represent
a group having a site capable of being bound to boron atoms which are the
same or different.