| 摘要 |
PROBLEM TO BE SOLVED: To obtain an ionically conductive solid polyelectrolyte having a high ionic conductivity by incorporating specific electrolytic salts into a matrix comprising a composite of cross-linkable polymers having different elastic moduli. SOLUTION: Equal amts. of electrolytic salts represented by formulas LiX (CF3 SO2 )n (wherein X is N, C, B, or CR; R is an alkyl; and (n) is 1-3) and M(BF4 ) (wherein M is an alkali metal, etc.) are dissolved in a propylene carbonate-dimethyl carbonate mixture, etc. Thus obtd. soln. is mixed with a monofunctional monomer (e.g. ethoxydiethylene glycol acrylate), a polyfunctional monomer (e.g. trimethylolpropane triacrylate), and a photopolymn. initiator to give photopolymerizable soln. A. Photopolymerizable soln. B is prepd. in the same way by changing the monomer ratio only. Soln. A is poured in a certain container to form a thin film and hardened by irradiating with ultraviolet rays. Soln. B is cast onto the above-formed film and hardened by irradiating with ultraviolet rays to give an ionically conductive solid polyelectrolyte having a viscoelastic modulus of 10<4> -10<6> dyn/cm<2> and an ionic conductivity of 10<-4> -10<-2> S/cm. |
