TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Laminates: The laminates are formed by insertion of parting, coiling or folding separators between the positive and negative electrodes.    TECHNOLOGY FOCUS - POLYMERS - Preferred Materials: The polymer gel phase and polymer solid phase may contain the same or different polymer materials but their average molecular weights in these phases are preferably different. Both phases particularly contain polyvinylidene fluorides or polyvinyl alcohols which are of different molecular weights in the two phases. EXAMPLE - A positive electrode was made from (pts.wt.) LiCoO2 (87), graphite (6) and polyvinylidene fluoride (5) as a dispersion in N-methyl-2-pyrrolidone (NMP) by the doctor blade method to give a 300-mum thick film on a 30-mum aluminum net positive electrode current collector, drying at 60 degreesC for 1 hr. and rolling to give a 400-mum laminate for impregnation with an electrode (peeling strength = 20-25 gf/cm). A negative electrode was prepared from (pts.wt.) carbon microbeads (95) and polyvinylidene fluoride (5) in NMP by applying onto a 20 mum ribbon copper net a 300-mum thick film on a 20-mum copper net negative electrode current collector, drying and rolling to a 400-mum laminate for impregnation with an electrolyte (peeling strength = 5-10 gf/cm). An adhesive was prepared from (pts.wt.) poly(methyl methacrylate) (3; average molecular weight, Mw = 350,000) and polyvinylidene fluoride (2; Mw = 534,000) in NMP as a homogeneous solution. One surface of a porous polypropylene oxide was applied with the adhesive and the positive or negative electrode was fixed onto it and on the other side of the electrode was similarly fixed with a separator, then dried at 60 degreesC. After punching the separator at a predetermined size, the adhesive was applied on top and a negative or positive electrode was fixed onto it, while the other separator on opposite side was similarly punched, adhesive applied and a negative or positive electrode applied on, if necessary repeating the process to give a multilayered laminate, and pressed to shape to give a battery body for impregnation with 1 M LiPF6 in ethylene carbonate/dimethoxyethane (1:1). A battery was obtained after assembly. The peeling strength of the laminate of positive electrode -separator, and that of negative electrode-separator were 17 and 12 gf/cm, respectively. The battery electrical resistance = 24 OMEGA.