TECHNOLOGY FOCUS - POLYMERS - Preferred Units: The repeating unit (200 and/or 201) comprise a hydrocarbon side-chain extending from main-chain repeating unit. The hydrocarbon side-chain is interdigitated with hydrocarbon side-chain of neighbouring main-chain repeating units. Ion coordinating channel is oxygen-rich at primary coordinating site, and oxygen-deficient in the region of unit (201) relative to primary coordinating site. The units (200,201) comprise several methylene-oxy-methylene linkages. The unit (201) comprises less methylene-oxy-methylene linkages than unit (200). Ion transport within coordinating channel is decoupled from conformational motion of units (200,201) comprising alkylene linkage. The primary coordinating site is configured for releasable coordination of metal cation. The units (200,201) comprise 4-8 oxyethylene linkages and 1-3 oxyethylene linkages, respectively. The units (200,201) comprise ester linkage(s), carbonate linkage(s) and/or ketone linkage(s). The interdigitated hydrocarbon side-chains are organized into crystal or liquid crystal ionophobic regions. Electrolyte comprises several ion coordinating channels organized into ionophilic regions to form a polymer electrolyte lattice of ionophobic regions and ion conducting ionophilic regions. The electrolyte further comprises a polymer (P2) having ionophilic polyoxyalkylene units, positioned between lattice of units (200,201). The electrolyte further has a main-chain repeating unit (I) interdispersed between units (200,201). The unit (I) is less strongly ion coordinating than unit (200), and comprises a single methylene-oxy-methylene linkage, and ester linkage, a carbonate linkage and/or a ketone linkage. Preferred Composition: The electrolyte contains mixture of 15-25 mol% of unit (200) and 75-85 mol% of unit (201). The mole concentration of units (201,I) is more than that of unit (200). Preferred Polymer: The polymer comprises a mixture of hydrocarbon (C12H25) and hydrocarbon (C18H37) in a ratio of 50:50. The polymer further comprises repeating units of formulae (10-13). The molar amount of repeating unit of formula (1) is less than repeating unit of formula (2). The molar amount of repeating unit of formula (11) is more than repeating unit of formula (1), and less than repeating unit of formula (2). The polymer is preferably compound of formula (1 or 2).R1-R3=same as defined above;R4=ester linkage, carbonate linkage or ketone linkage;ands=1-8.The polymer further comprises repeating unit of formula (3): (-O-(A-O-)x-B-), where A is alkylene or phenylene, preferably (CH2)4, B is alkylene, phenylene, alkylene ether, phenylene ether, alkylene-phenylene ether, alkoxy-phenylene ether or alkyl-phenylene ether, preferably side chain hydrocarbon (CH2)m or -O-C6H4-O-(CH2)12-O-C6H4-O-, and x is 20-40. The hydrocarbon side-chain is alkyl, phenyl or substantially straight chain hydrocarbon of formula: -(CH2)m-H, where m is 5-30, more preferably 12, 16 or 18. The hydrocarbon side-chain is provided on each alkylene group or benzene nucleus of several repeating units, and is extended from some of the alkylene groups or benzene nucleus. The polymer electrolyte further contains a main-chain polyether repeating unit having 4-8 oxyethylene linkages, interdispersed between oxyethylene linkages of main-chain polyether comprising 1-3 oxyethylene linkages. The electrolyte further comprises a polyester repeating unit having 1-8 oxyethylene linkages. Preferred Electrolyte: The polymer electrolyte is arranged as multi-layers comprising ionophilic regions of polyester repeating units and ionophobic regions of hydrocarbon side-chains. The polymer electrolyte comprises a lamellar, micellar or lamellar-micellar complex morphology. Preferred Cell: The galvanic cell is configured for use with lithium cations and anions (ClO4-, BF4-, CF3S03- and/or (CF3SO2)N-). The galvanic cell is a solvent free battery. The electrolyte-decoupled ion transport occurs via ionophilic repeating unit channels between a cathode and an anode. The polymer having repeating unit of formula (1) is positioned at or towards the cathode of galvanic cell. The electrolyte of galvanic cell further comprises a lithium salt of formula: LiX, where X is ClO4-, BF4-, CF3S03- and/or (CF3SO2)N-. Preferred Method: Alternately, polymer is obtained by reacting compound of formula (7), compound of formula (8) and compound of formula (9): HO-CH2-R1(-R2-R3)-CH2-OH reacting in dimethyl sulfoxide (DMSO) solvent or a solvent mixture of DMSO and tetrahydrofuran. The compound of formula (2) is blended with compound of formula (1) and/or ionic bridge polymer of formula (3), before heating during preparation of polymer electrolyte. Preferred Condition: The transition temperature is above melting or glass transition temperature of compound of formula (1), preferably between ambient temperature and 110degreesC. Preferred Definitions:    R1=CH or benzene nucleus;    R2=oxygen;    R3=straight chain hydrocarbon, preferably -(CH2)m-H;    m=5-30, preferably 12 or 18.    EXAMPLE - 5-hexa decycloxy-1,3-bis(bromomethyl)benzene (in g) (1), tetraethylene glycol (0.385) and potassium hydroxide (0.44) were mixed with dimethyl sulfoxide (1 ml) and tetrahydrofuran (1 ml). The mixture was stirred at 3-50degreesC for 3 hours. The polymer was precipitated in water. The mixture was neutralized with concentrated acetic acid. The polymer was separated and washed with hot water to remove inorganic salt. A polymer of formula (A) was obtained. The obtained compound (0.4), compound of formula (B) (0.6), 1,3-bis(dibromo methyl)-5-hexadecyloxy benzene and potassium hydroxide (0.045) were mixed with dimethyl sulfoxide (1.8 ml). The mixture was heated at 75degreesC for 3 days. The polymer was precipitated in water, and neutralized. The resulting product was separated and washed to obtain a polymer (0.62) having number average molecular weight of 6048, weight average molecular weight of 29746, Z average molecular weight of 122776 and melting point of 36degreesC. The obtained polymer was mixed with compound of formula: -(-O(-(CH2)4-O)30-(CH2)12)- and lithium salt in a mixed solvent of dichloromethane and acetone. The solvent was removed, and dried under vacuum at 50-60degreesC. An electrolyte was produced. A galvanic cell was produced using the electrolyte.