申请人:Mitsui Chemicals, Inc.
公开号:EP0896340A1
公开(公告)日:1999-02-10
A polymeric gel electrolyte comprising:
(a) an acrylic ester polymer matrix containing structural units derived from at least one acrylic ester selected from among acrylic esters represented by the general formulae:
(wherein, in the formula (I), R1, R2 and R2' are identical with or different from each other and represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, R3 represents an alkyl group having 1 to 4 carbon atoms, and n is an integer of 1 to 100; and, in the formula (II), R4 to R9 are identical with or different from each other and represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and p, q and r are identical with or different from each other and are an integer of 1 to 100); (b) a nonaqueous solvent of a carbonic ester; and (c) a salt of a metal of Group Ia of the periodic table. This polymeric gel electrolyte uses an acrylic ester polymer as a polymeric matrix and contains a specified nonaqueous solvent, so that it exhibits high ionic conductivity and is electrochemically stable. Thus, the polymeric gel electrolyte can suitably be used in electrochemical devices such as a primary battery, a secondary battery, a capacitor and an electrochromic display and in medical actuators.
聚合物凝胶电解质,包括
(a) 一种丙烯酸酯聚合物基体,含有至少一种丙烯酸酯衍生的结构单元,该丙烯 酸酯选自通式如下的丙烯酸酯:
(其中,在式(I)中,R1、R2 和 R2'彼此相同或不同,代表氢原子或具有 1 至 4 个碳原子的烷基,R3 代表具有 1 至 4 个碳原子的烷基,n 是 1 至 100 的整数;在式(II)中,R4 至 R9 彼此相同或不同,且代表氢原子或具有 1 至 4 个碳原子的烷基,p、q 和 r 彼此相同或不同,且为 1 至 100 的整数);(b)碳酸酯的非水溶剂;以及(c)元素周期表 Ia 族金属的盐。这种聚合物凝胶电解质使用丙烯酸酯聚合物作为聚合物基质,并含有特定的非水溶剂,因此具有高离子导电性和电化学稳定性。因此,这种聚合物凝胶电解质可适用于电化学装置,如一次电池、二次电池、电容器和电致变色显示器以及医疗致动器。