(CN1267683-A)   NOVELTY - A polymer electrolyte comprising: a polymer gel holding a nonaqueous solvent containing an electrolyte. The gel comprises: (I) a unit derived from a monomer having a copolymerizable vinyl group; (II) a unit derived from (IIa) a compound having two acryloyl groups and a (poly)oxyethylene group,and (IIb) a compound having one acryloyl group and a (poly)oxyethylene group; and (IIc) a glycidyl ether compound.    USE - The polymer electrolyte is used in lithium batteries.    ADVANTAGE - The polymer electrolyte has high ionic conductivity and exhibits excellent discharge characteristics in low to high temperatures. The polymer electrolyte also suppresses growth of dendrites.    (JP2001189166-A)   NOVELTY - A polymer electrolyte comprising: a polymer gel holding a nonaqueous solvent containing an electrolyte. The gel comprises: (I) a unit derived from a monomer having a copolymerizable vinyl group; (II) a unit derived from (IIa) a compound having two acryloyl groups and a (poly)oxyethylene group,and (IIb) a compound having one acryloyl group and a (poly)oxyethylene group; and (IIc) a glycidyl ether compound.    USE - The polymer electrolyte is used in lithium batteries.    ADVANTAGE - The polymer electrolyte has high ionic conductivity and exhibits excellent discharge characteristics in low to high temperatures. The polymer electrolyte also suppresses growth of dendrites.    (KR2001006825-A)   NOVELTY - A polymer electrolyte comprising: a polymer gel holding a nonaqueous solvent containing an electrolyte. The gel comprises: (I) a unit derived from a monomer having a copolymerizable vinyl group; (II) a unit derived from (IIa) a compound having two acryloyl groups and a (poly)oxyethylene group,and (IIb) a compound having one acryloyl group and a (poly)oxyethylene group; and (IIc) a glycidyl ether compound.    USE - The polymer electrolyte is used in lithium batteries.    ADVANTAGE - The polymer electrolyte has high ionic conductivity and exhibits excellent discharge characteristics in low to high temperatures. The polymer electrolyte also suppresses growth of dendrites.