SOLID ELECTROLYTE COMPOSITION, CELL ELECTRODE SHEET AND ALL-SOLID-STATE SECONDARY CELL IN WHICH SAID SOLID ELECTROLYTE COMPOSITION IS USED, AND METHOD FOR MANUFACTURING CELL ELECTRODE SHEET AND ALL-SOLID-STATE ELECTRODE SHEET

摘要

A solid-state electrolyte composition containing a multibranched polymer and an inorganic solid-state electrolyte having conductivity with respect to ions of metals belonging to Group 1 or 2 in the periodic table, wherein the multibranched polymer is an amorphous polymer having a core section and at least three polymeric arm sections bound to the core section.