GEL-FORM SOLID POLYMER ELECTROLYTE - MITSUI CHEMICALS INC

Title:

GEL-FORM SOLID POLYMER ELECTROLYTE

Document Type and Number:

WIPO Patent Application WO/1998/025275

Kind Code:

A1

Abstract:

A gel-form solid polymer electrolyte which comprises (a) a matrix consisting of an acrylic ester polymer having structural units derived from at least one acrylic ester selected among those represented by general formulae (I) and (II); (b) a nonaqueous solvent comprising a carbonic ester; and (c) a salt of a Group Ia metal of the Periodic Table, wherein formula (I), R?1�, R?2� and R?2'� are the same or different and each represents hydrogen or C�1-4? alkyl; R?3� represents C�1-4? alkyl; and n is an integer of 1 to 100, and in formula (II), R?4� to R?9� are the same or different and each represents hydrogen or C�1-4? alkyl; and p, q and r are the same or different and each is an integer of 1 to 100. Since the electrolyte comprises the acrylic ester polymer as the matrix and the specific nonaqueous solvent contained therein, it has a high ionic conductivity and is electrochemically stable. It is usable in electrochemical elements for primary battery, secondary battery, capacitor, electrochromic display, etc., and in medical actuator, etc.

Inventors:

SHINDO MASAHARU (JP)
SASANO TAKAKO (JP)

Application Number:

PCT/JP1997/004355

Publication Date:

June 11, 1998

Filing Date:

November 28, 1997

Export Citation:

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Assignee:

MITSUI CHEMICALS INC (JP)
SHINDO MASAHARU (JP)
SASANO TAKAKO (JP)

International Classes:

C08F2/44; H01B1/12; H01M10/052; H01M10/0565; H01M6/16; (IPC1-7): H01B1/12

Foreign References:

JPH02298505A	1990-12-10
JPH0556383B2	1993-08-19
JPH0556384B2	1993-08-19
JPH08217868A	1996-08-27
JPH08217869A	1996-08-27

Other References: