TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Components: (II) and/or (III) comprises: a dry polymer; and at least one lithium salt. (I) further comprises: electronically conducting particles in at least a portion of the negative electrode assembly and at least a portion of the positive electrode assembly; and a separator electrolyte between the negative electrode assembly and the positive electrode assembly. The negative electrode assembly comprises particles of the negative electrode active material mixed together with the negative electrode electrolyte. The negative electrode active material comprises: graphite; and lithium metal. The negative electrode assembly comprises a layer comprising the negative electrode active material adjacent a layer of (II). The negative electrode active material comprises a lithium or lithium alloy foil comprising a lithium-aluminum alloy that has no more than 0.5 wt.% of aluminum. (II) is a solid electrolyte that has a yield strain greater than or equal to a maximum volume expansion of the negative electrode material. The negative electrode assembly further comprises many voids. The positive electrode assembly comprises: particles of the positive electrode active material mixed together with (III); and a layer comprising the positive electrode active material adjacent a layer of (III). The positive electrode active material comprises an electrochemically active cation, and less than 10 (preferably less than 1)% of the electrochemically active cation dissolves from the positive electrode active material after 500 cycles in the temperature of 45-80 degrees C. (I) has a difference of no more than 25% between ionic conductance of the negative electrode assembly and ionic conductance of the positive electrode assembly. (I) further comprises a separator electrolyte between the negative electrode assembly and the positive electrode assembly, the separator electrolyte different from (II) and/or (III). The separator electrolyte is ceramic electrolytes, polymer electrolytes or block copolymer electrolytes. The separator electrolyte comprises a solid electrolyte. The conductance of the negative electrode assembly, the conductance of the positive electrode assembly, and the conductance of the separator electrolyte are all within 25% of one another. (I) comprises: a composite negative electrode comprising negative electrode active material and (II); a composite positive electrode comprising positive electrode active material and (III); and a separator electrolyte between the negative electrode and the positive electrode, where (II), (III) and/or the separator electrolyte comprises a dry polymer. The separator electrolyte is different from both the negative electrode electrolyte and the positive electrode electrolyte. The negative electrode can accommodate volumetric expansion and contraction of the negative electrode active material upon cycling.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The negative electrode active comprises material comprising lithium (Li)-aluminum (Al), Li-silicon (Si), Li-tin (Sn) or Li-magnesium (Mg). The negative electrode active material comprises a material comprising silicon; silicon alloys of tin (Sn), nickel (Ni), copper (Cu), iron (Fe), cobalt (Co), manganese (Mn), zinc (Zn), indium (In), silver (Ag), titanium (Ti), germanium (Ge), bismuth (Bi), antimony (Sb), or chromium (Cr); silicon oxides; silicon carbides and/or graphite. The positive electrode active material has a structure of formulae (LiA1-y-xMyB1xO2 (a); LiAxM2-xY14 (b); Li(Ni(0.5-x)Co(0.5-x)M2x)O2 (c); Li(Ni(0.5-x)Mn(0.5-x)M2x)O2 (d); Li(Ni1/3-xMn1/3-xCo1/3-xMx)O2 (e); and Lix(FeyM1-y)PO4 (f)). In formula (a),A = at least one transition metal of Mn, Co or Ni;M = at least one element comprising B, Mg, Ca, Sr, Ba, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Al, In, Nb, Mo, W, Y or Rh;B1 = at least one element comprising Al, Fe, Mn or Mg; andx, y = 0-1.In formula (b),A, M = Mn, Ni, Co, Cu, V, Fe or Cr;Y1 = O or S; andx = 0-2.In formula (c),M = Al, Mg, Mn or Ti; andx = 0-0.2.In formula (d),M = Al, Mg, Co, Ti or Fe; andx = 0-0.2.In formula (e),M = Al, Mg or Fe; andx = 0-0.1.In formula (f),M = at least one element comprising Mn, Co or Ni;x = 0.9-1.1; andy = 0-1.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: (II) and (III) are dry polymer electrolytes or dry block copolymer electrolytes. The block copolymer is either a diblock copolymer or a triblock copolymer. The first block of the block copolymer is ionically conductive and is polyethers, polyamines, polyimides, polyamides, alkyl carbonates, polynitriles, polysiloxanes, polyphosphazines, polyolefins and/or polydienes. The first block of the block copolymer comprises an ionically-conductive comb polymer, which comb polymer comprises a backbone and pendant groups. The backbone comprises polysiloxanes, polyphosphazines, polyethers, polydienes, poly olefins, poly acrylates and/or polymethacrylates. The pendants comprise oligoethers, substituted oligoethers, nitrile groups, sulfones, thiols, polyethers, polyamines, polyimides, polyamides, alkyl carbonates, polynitriles and/or other polar groups. The second block of the block copolymer is polystyrene, hydrogenated polystyrene, polymethacrylate, poly(methyl methacrylate), polyvinylpyridine, polyvinylcyclohexane, polyimide, polyamide, polypropylene, polyolefins, poly(tert-butyl vinyl ether), poly(cyclohexyl methacrylate), poly(cyclohexyl vinyl ether), poly(tert-butyl vinyl ether), polyethylene, fluorocarbons, polyvinylidene fluoride, and/or copolymers that contain styrene, methacrylate, and/or vinylpyridine. EXAMPLE - No preparative examples are given.