TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The high molecular weight compound in which a polymerization compound of formula -C(X11)(CH2)-C(O)-O-R1-CHOH-CH2-O-C(O)-C(X12)=CH2 (I), -C(X2)(CH2)-C(O)O-R2 (II), -C(X3)-CH2-C(O)O-R3 (III), -C(X11)(CH2)-C(O)-O-CH2-CHOH-CH2-O-C(O)-C(X12)=CH2 (IV), -C(X2)(CH2)-C(O)O-R21 (V), -C(X3)-CH2-C(O)O-R31 (VI), -C(X2)-CH2-C(O)O-R22 (VII) and -C(X3)-CH2-C(O)O-R35 (VIII) is polymerized.X11,X12,X2,X3 = H or methyl;R1 = a structural part containing carbon and no ether group;R2,R3 = H or R1;R21 = H, at most10C alkyl or at most12C aromatic ring;R31 = R21, -(CH2)a-(CF2)b-C(F)c-(R32)d or -R33-R34;R32 = H, F or CF3;a = 0 - 6;b = 0 - 16;c,d = 1 or 2;R33 = bivalent linkage group;R34 = cyclic carbonate group;R22,R35 = at most6C alkyl.    TECHNOLOGY FOCUS - ELECTRONICS - Preferred Components: The anode comprises an anode current collector and an anode active material layer which is alloyed with the anode current collector at least on part of an interface with the anode current collector provided on the anode current collector. The anode active material layer is formed by a method selected from vapor-phase deposition method, liquid phase deposition method and sintering method on the anode current collector. The cathode, the anode, and the high molecular weight electrolyte are housed inside an exterior member and the high molecular weight compound is polymerized inside the exterior member. EXAMPLE - A secondary battery was prepared as follows. A cathode was fabricated by mixing lithium carbonate and cobalt carbonate in a mole ratio of 0.5:1. The mixture was fired for 5 hours at 900degreesC in the air to obtain lithium cobalt complex oxide as a cathode active material. Next, lithium cobalt complex oxide (85 parts), graphite (conductive agent) (5 parts) and polyvinylidene fluoride (binder) (10 parts) were mixed to prepare a cathode mixture. Subsequently this cathode mixture was dispersed in N-methyl-2-pyrrolidone of a carrier fluid to obtain a cathode mixture slurry. This cathode mixture slurry was uniformly applied on a cathode current collector made of an aluminum foil having a thickness of 20 mum, dried and compression-molded to form a cathode active material layer. Then, a cathode terminal was attached to the cathode. The anode was fabricated as follows. A layer made of tin (3 mum) was formed on an anode current collector made of an electrolytic copper foil (18 mum). Then, the resultant was heat treated for 24 hours at 200degreesC to form an anode active material layer. After fabrication the anode, an anode terminal was attached to the anode. A polymerization compound (trimethylol propane triacrylate and neopentyl glycol diacrylate mixed in a mass ratio of 2:8) (5 parts), tert-butyl peroxineodecanoate (peroxiester polymerization initiator) (0.1 part) were mixed in relation to an electrolytic solution (100 parts) to produce an electrolyte composition of matter. The electrolyte composition of matter was impregnated in the fabricated cathode and the anode. Then, the cathode and the anode were contacted with the separator made of a micro-porous polyethylene film (25 mum) and enclosed inside the exterior member under a reduced pressure. For the exterior member, a wet-proof aluminum laminated film where a nylon film (25 mum), an aluminum foil (40 mum) and a polypropylene film (30 mum) were layered in this order from the outermost layer was used. After that, the resultant was sandwiched between glass plates, heated for 30 minutes at 75degreesC to polymerize the polymerization compound. The electrolyte composition of matter was gelatinized to become the high molecular weight electrolyte. A comparative secondary battery was prepared in the same manner as the test secondary battery except that as a polymerization compound (CH2=CH-C(O)=O-(CH2-CH2-O)-4-C(O)-CH=CH2) was used. The test/comparative battery showed initial discharge capacity (mAh) of 776/750; and capacity retention ratio (%) of 73/65. From the results obtained it was found that the test battery showed a high capacitance with improved cyclic characteristics.