(WO9307626-A1)      An ion-contg. gel with bulk ionic conductivity at 20 deg.C and 10 kHz greater than 10 power (-4) Siemens/cm and a dynamic modulus at 10 kHz greater than 10 power 3 (pref. 10 power 4, esp. 10 power 5) Pa, comprises a minor amt. of a crystallisable polymer, a major amt. of an organic cpd. which is not a solvent for the polymer at 20 deg.C and a salt soluble in the cpd. at 20 deg.C and at a concn. of 4 mass % based on the cpd. The method of making the gel is also claimed, as is a galvanic cell with the electrolyte comprising the gel.    The polymer is pref. of mol. wt. to form a coherent film or fibre, and is pref. from polyamide, polyester, polyether or substd. polyolefin, esp. from poly(ethylene terephthalate), poly(1,4-butylene terephthalate), poly(3-oxybutanoate), polyhydroxybutanoic acid, poly(hexamethylene adipamide), poly(metaxylylene adipamide), poly(m-phenylene isophthalamide), poly(vinylidene fluoride), polyoxymethylene and polyoxyethylene. The organic cpd. is pref. a solvent for the polymer at 100 deg.C or more, and is pref. an amide, esp. a tert. amide, a sulphoxide and/or an ether, esp. from DMF, dimethyl acetamide, N-methyl-2-pyrrolidone (NMP), N-formyl piperidine, a dimethyl ether of di-, tri-, or tetra-ethylene glycol, and dimethyl sulphoxide. Pref. salts are of an alkali metal or (substd.) ammonium, esp. Li, the anion being monovalent and selected from Br, I, a pseudo-halogen, and a perfluorinated alkyl carbonate or sulphonate.    USE/ADVANTAGE -   The gels provide higher bulk ionic conductivities at both ambient and elevated temps. than prior art polymer salt complexes and better mechanical props than polymer salt plasticising solvent complexes    (JP6511595-W)      An ion-contg. gel with bulk ionic conductivity at 20 deg. C and 10 kHz greater than 10 power (-4) Siemens/cm and a dynamic modulus at 10 kHz greater than 10 power 3 (pref. 10 power 4, esp. 10 power 5) Pa, comprises a minor amt. of a crystallisable polymer, a major amt. of an organic cpd. which is not a solvent for the polymer at 20 deg. C, and a salt soluble in the cpd. at 20 deg. C and at a concn. of 4 mass % based on the cpd. The method of making the gel is also claimed, as is a galvanic cell with the electrolyte comprising the gel.    The polymer is pref. of mol. wt. to form a coherent film or fibre, and is pref. from polyamide, polyester, polyether or substd. polyolefin, esp. from poly(ethylene terephthalate), poly(1,4-butylene terephthalate), poly(3-oxybutanoate), polyhydroxybutanoic acid, poly(hexamethylene adipamide), poly(methaxylylene adipamide), poly(m-phenylene isophthalamide), poly(vinylidene fluoride), polyoxymethylene and polyoxyethylene. The organic cpd. is pref. a solvent for the polymer at 100 deg. C or more, and is pref. an amide, esp. a tert. amide, a sulphoxide and/or an ether, esp. from DMF, dimethyl acetamide, N-methyl-2-pyrrolidone (NMP), N-formyl piperidine, a dimethyl ether of di-, tri-, or tetra-ethylene glycol, and dimethyl sulphoxide. Pref. salts are of an alkali metal or (substd.) ammonium, esp. Li, the anion being monovalent and selected from Br-, I-, a pseudohalogen, and a perfluorinated alkyl carbonate or sulphonate.    USE/ADVANTAGE -   The gels provide higher bulk ionic conductivities at both ambient and elevated temps. than prior art polymer-salt complexes, and better mechanical properties than polymer-salt-plasticising solvent complexes.    (US5460903-A)      The ionically conductive ion-contg. gel having a bulk ionic conductivity at 20 deg.C and 10 kHz over 4 Siemens/cm and a dynamic modulus at 10 Hz over 10 power 3 Pa, where the gel contains up to 50% by mass of a crystallisable polymer from poly(ethylene terephthalate), poly(1,4-butylene terephthalate), poly(3-oxybutanoate), polyhydroxybutyric acid, poly(hexamethylene adipamide), poly(metaxylylene adipamide), poly(meta-phenylene isophthalamide), poly(vinylidene fluoride), polyoxymethylene and polyoxyethylene.    Over 50% by mass of an organic cpd. that is not a solvent for the crystallisable polymer at 20 deg.C, the cpd. being from DMF, dimethyl acetamide, N-methyl-2-pyrrolidinone, N-formyl piperidine, a dimethyl ether of diethylene glycol, triethylene glycol or tetraethylene glycol, and DMSO and a lithium salt with an anion from Br, I, a pseudohalogen and a perfluorinated alkyl carboxylate or sulphonate. The salt is sol. in the cpd. at 20 deg.C and dissolved in it at over 4% by mass w.r.t. cpd.    USE/ADVANTAGE -   Used as an electrolyte in a galvanic cell. Is solid and so is more stable than a liquid electrolyte. Has higher ionic conductivity that polymer electrolytes, and better mechanical properties than polymer-salt-plasticising solvent complexes.