TECHNOLOGY FOCUS - ELECTRONICS - Preferred Components: The cathode further comprises a conductive additive; and a binder.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Process: The process involves the following steps: a) impregnating a cellulosic precursor with an activating agent comprising phosphoric acid or a phosphate salt or a phosphate ester, b) heating the impregnated cellulosic precursor to produce a phosphorylated carbon of high specific surface area, c) mixing the thus obtained phosphorylated carbon with precursors of lithium, transition metals, optional dopants and, if required, additional phosphate, d) heating the mixture of step c) to produce a nanocomposite of lithium metal phosphate and carbon. The cellulosic precursor is impregnated with a solution of phosphoric acid or a phosphate salt or a phosphate ester, preferably with orthophosphoric acid H3PO4, at an impregnation ratio (weight ratio of phosphate or phosphoric acid to cellulosic precursor on a dry basis) in the range of 0.1-5 (preferably 0.5-2). A graphitization catalyst, such as a metal compound (preferably an iron compound) is added in step (a). The impregnated cellulosic precursor of step (a) is gradually heated to 450-1000 (preferably 450-600) degrees C. The heating rate is low enough to allow escape of volatiles without blowing up the material. The heating rate is high enough to loosen the structure of the material by foaming. After heating to 450 degrees C, the temperature is increased to from 500-1000 (preferably 500-600) degrees C for a short time and preferably in the absence of oxygen, in order to increase the electric conductivity without extensive phosphate loss by evaporation. Mixing is carried out in the dry state, (preferably by milling, especially ball milling). Mixing is carried out in liquid phase, (preferably in aqueous phase). The product of step (c) is heated for crystallization to 400-800 (preferably 450-600) degrees C, preferably under inert gas or reducing atmosphere. Preferred Components: The lithium precursor is Li2CO3, Li2O, lithium hydroxide (LiOH), LiH2PO4, Li2HPO4, Li3PO4, lithium metaphosphate or polyphosphate, and/or any other lithium compound that produces no by-products which degrade the main product. The metal precursors are metal carbonates or oxalates or oxides, hydroxides, salts with carboxylic acids (e.g. acetates) or hydroxyl carboxylic acids (e.g. glycolates, lactates, citrates, tartrates), chlorides, sulfates, nitrates, and/or any other metal compound that produces no by-products which degrade the main product. The phosphate precursor is H3PO4, HPO3, P2O5, LiH2PO4, Li2HPO4, Li3PO4, lithium metaphosphate or polyphosphate, NH4H2PO4, (NH4)2HPO4, and/or any phosphate compound that produces no by-products which degrade the main product. The lithium metal phosphate/carbon nanocomposite obtained comprises the carbon content of 1-20 (preferably 1-10) wt.%. The average crystallite size of the lithium metal phosphate domains (e.g. determined from X-ray diffraction line broadening) is smaller than 200 (preferably smaller than 60) nm. The average cross- sectional dimension of the lithium metal phosphate domains (e.g. determined by electron microscopy) is smaller than 200 (preferably smaller than 60) nm. The carbon is covalently bound to the lithium metal phosphate through carbon-oxygen-phosphorus (C-O-P) bridges. The lithium metal phosphate is a lithium iron phosphate LixFePO4, optionally doped with other elements. The lithium metal phosphate is a lithium manganese iron phosphate of formula LixMnyFe1-yPO4, optionally doped with other elements.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The cellulosic precursor is a vegetable material such as wood (e.g. hardwood, softwood, woodchips, wood flour, sawdust), agricultural residues like straw, nut shells (e.g. coconut, almond or palm nut shells), nut pits, fruit stones (e.g. olive, cherry or peach stones), cotton, linen, jute, bark, cork, cellulose pulp and/or paper. The cellulosic precursor has a low gravimetric density. The cellulosic precursor has low lignin content. The cellulosic precursor has low ash content. The cellulosic precursor is cellulose pulp, paper and/or cotton. EXAMPLE - LiMn0.8FeO2PO4/C Nanocomposite was prepared as follows: cellulose powder (2 g) was impregnated with a solution of 85% H3PO4 (2 g) and water (4 g) and heated in air from ambient temperature to 470 degrees C within 1 hour. The phosphorus content of the obtained activated carbon was determined after digestion of a sample with sulfuric/nitric acid by the phosphomolybdenum blue method to 9.1 mmol P/g. Phosphorylated carbon (1.43 g), MnCO3 (2.76 g), Fe(II)oxalate dihydrate (1.08 g), LiH2PO4 (1.77 g) and Li2CO3 (0.48 g) were milled in a hardened steel container with hardened steel balls for 2 hours at 500 rpm in a planetary ball mill. The obtained powder was heated up to 470 degrees C within 30 minutes and maintained at this temperature for 1 hour under a stream of argon. The carbon content of the resulting LiMn0.8Fe0.2PO4/C nanocomposite was 8 wt.%.