TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Method: Preferred Method: The matrix is sintered to form a solid. The step of sintering the matrix comprises subjecting the matrix to pressure of at least 5000 pounds per square inch and heating the matrix at a temperature of at least 200 degrees C. Preferred Components: The lithium aluminate intercalate solid is present in the matrix in an amount of at least 80 wt.% and the polymer is present in an amount of 1-20 wt.%. The lithium salt is lithium chloride. The alumina comprises gibbsite, alumina hydrate, bayerite, nordstandite, bauxite, amorphous aluminum trihydroxide, and activated alumina. The particulate material has an average diameter of 100-450, preferably 180-300 mu m.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The polymer comprises polyethylene, ultra high molecular weight polyethylene, high density polyethylene, polypropylene, polyvinyl alcohol, poly acrylic acid, polyvinylidine difluoride and/or PTFE. The polymer comprises an emulsified water insoluble polymer including fluoropolymer and acrylic interpolymer. EXAMPLE - 1.47 g of Kynarflex 2821 (RTM: Polyvinylidene fluoride copolymer) and 27.56 g of lithium aluminate intercalate were placed in a plastic jar and mixed using a mechanical stirrer at 1000-5000 revolution/minute (rpm) for 5 minutes. The resulting mixed matrix powder was placed in a frame having two Teflon (RTM: Polytetrafluoroethylene) lined metal plates. The powdered mixture in the press frame was placed in a hydraulic press and subjected to 3500 pounds per square inch pressure for 3 minutes, released, again subjected to 4000-5000 pounds per square inch pressure and then to 10,000 pounds per square inch pressure at 360 degrees C for 3 minutes, and released. The mixture was subjected to 3500 pounds per square inch pressure for about 2-3 minutes. The resulting sintered polyvinylidene fluoride/lithium aluminate intercalate block was broken into large granulates using a hammer. The polyvinylidene fluoride/lithium aluminate intercalate granulates were separated using sieves having a diameter of 180-450 mu m.