TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Cathode: The graphene forms electrically conductive pathway across dimension of cathode. The cathode has thickness of 50-200 mu m (preferably 50-100 mu m, more preferably at least 10 mu m). The cathode has performance, as defined by discharge capacity at 4C current, of at least 130 mAh/g. The cathode further comprises binder. Preferred Method: The step of combining particles involves adding sufficient amount of particles to achieve solids loading of at least 65%. The step of forming cathode involves removing solvent. Preferred Paste: The paste has solids loading of 65-85% (preferably 74-81%) and viscosity of 100-10000 cP (preferably 2000-7000 cP).    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Formulation: The electroactive material has mean domain size of 3-20 mu m (preferably 5-20 mu m, more preferably 5-12 mu m). The graphene has BET surface area of 80-800 m2/g. The graphene is 2-20 (preferably 3-15) layer graphene, having mean lateral domain size of 0.5-10 mu m (preferably 1-5 mu m). The cathode formulation comprises 0.1-2.5 wt.% of graphene. Preferred Components: The electroactive material is lithium ion-based material selected from LiMPO4, LiM'O2, Li(M'')2O4, Li1+x(NiyCo1-y-zMnz)1-xO2, LiNiO2, LiNipAlqO2, LiCoO2, LiMn2O4, Li2MnO3, LiNi0.5Mn1.5O4, LiFeaMnbCocPO4, and LiNi1-s-tMnsCotO2 (preferably Li2MnO3, LiNi1-s-tMnsCotO2, LiNi0.5Mn1.5O4, and Li1+x(NiyCo1-y-zMnz)1-xO2); and layer-layer compositions contain Li2MnO3 phase or LiMn2O3 phase.M=Fe, Mn, Co, Ni;M' and M''=Ni, Mn, Co, Al, Mg, Ti, V, Cr, Fe, Zr, Ga, Si;x-z=0-1;p=0.8-0.99;q=0.01-0.2;p+q=1;a and b=0.01-1;c=0.01-0.2;a+b+c=1;s and t=0.01-0.99.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The binder is selected from fluorinated polymers such as poly(vinyldifluoroethylene) (PVDF), poly(vinyldifluoroethylene-co-hexafluoropropylene) (PVDF-HFP), poly(tetrafluoroethylene) (PTFE), polyimides, and water-soluble binders such as poly(ethylene) oxide, polyvinyl-alcohol (PVA), cellulose, carboxymethylcellulose (CMC), starch, hydroxypropylcellulose, regenerated cellulose, polyvinyl pyrrolidone (PVP), polyethylene, polypropylene, ethylene-propylene-diene terpolymer (EPDM), sulfonated EPDM, styrene-butadiene rubber (SBR), fluoro rubber and/or their copolymer. EXAMPLE - A test cathode paste was prepared as follows: A precipitation-made lithium nickel-cobalt-manganese oxide (LiNi0.5Co0.2Mn0.3O2, mean particle size of 10 mu m, 13.055 g) was combined with 7.6 wt.% polyvinylidene fluoride in N-methylpyrrolidone (NMP, 0.46 g) dissolved in 2.9 g NMP, resulting in total of 0.033 g poly(vinyldifluoroethylene) (PvDF) and 3.327 g NMP. To this mixture was added the graphene (Graphene A, surface area (SA) of 670 m2/g, external SA of 522 m2/g, thickness of 1.3 nm and lateral domain 2 mu m, 0.033 g). Two tungsten carbide media were added to the mixture and shaken for 30 minutes, yielding 79.8 wt.% of solids cathode paste having 0.25 wt.% of graphene relative to total solids content. A comparative cathode paste was prepared with carbon black as conductive filler, having BET surface area of 53 m2/g. The test cathode paste (high solids loading of 79.8%) was achieved at 0.25 wt.% graphene compared to the comparative cathode paste (low solids loading of 65.1%) prepared with 3 wt.% of carbon black.