TECHNOLOGY FOCUS - ELECTRONICS - Preferred Components: The electrode comprises: 60-95 wt.% of the polyphosphazene cyclomatrix; 15.5-40 wt.% of the particles; and 0-30 wt.% of silicon particles, and 0-30 wt.% of carbonaceous material particles. The electrode and negative electrodes further comprise at least one additional polyphosphazene cyclomatrix having at least one different property than the polyphosphazene cyclomatrix. The electrochemical cell has: an average operating cell voltage of greater than or equal to 3.5 V; and a specific gravimetric capacity of greater than or equal to 200 Ah kg-1. The electrolyte comprises at least one lithium salt. Preferred Method: The method further comprises: applying at least one of heat and pressure to the electrode composition on the surface of the current collector; formulating the electrode composition to comprise at least one solvent; evaporating the at least one solvent from the electrode composition on the surface of the current collector; and exposing the electrode composition on the surface of the current collector to at least one of heat and radiation. The step of applying the electrode composition on at least one surface of the current collector comprises spraying the electrode composition on the surface of the current collector.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The particles comprise: particles of at least one of silicon, germanium, tin, aluminum, alloys, and/or oxides; particles of at least one of a carbonaceous material and a conductive polymer; and particles of at least one lithium salt. The carbonaceous material comprises at least one of graphite, synthetic graphite, hard carbon, activated carbon, mesophase carbon, carbon blacks, pyrolytic carbon, glassy carbon, coal, coke, diamond, and fullerenes.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The phosphazene compound is of formula (I). The crosslinkage of the crosslinkages comprises: an ester group, a urea group, a urethane group, an amide group, an ether group, or a sulfone group; at least one of a diester, a diurea, a diurethane, a diamide, a diether, and a disulfone; and an ester group of formula (-C-O-C(=O)-CH2-CH2-C(=O)-O-), (-O-C(=O)-CH23-C(=O)-O-), or (-O-C(=O)CH26-C(=O)-O-), an alkane group of formula (-CH2-) or a divalent group of formula (II) or (III).R = hydroquinone group (optionally substituted), preferably methylhydroquinone, ethylhydroquinone, tert-butylhydroquinone, isopropyl hydroquinone, n-propylhydroquinone, isobutylhydroquinone, butylhydroquinone, methoxyhydroquinone, ethoxyhydroquinone, n-propoxyhydroquinone, isopropoxyhydroquinone, n-butylhydroquinone, isobutoxyhydroquinone, tert-butyl hydroquinone, halo-methylhydroquinone, halo-ethylhydroquinone, halo-n-propyl hydroquinone, halo-isopropylhydroquinone, halo-n-butylhydroquinone, halo-isobutylhydroquinone or halo-tert-butylhydroquinone group, or -X-G-L;X = -O-, -S- or -NH-;G = alkyl, alkoxy, heteroalkyl or halogenated alkyl (all substituted by arylene), (hetero)alicyclic or (hetero)arylene (both optionally substituted), (hetero)alkylene, (hetero)alkenylene, (hetero)alkynylene, -CO-, -SO2-, -SO-, -PO-, -O-, -S- or -NH-; andL = reactive functional group including amide group, amino group, alkyl halide group, aldehyde group, carbonyl group, carboxyl group, hydroxyl group, mercaptan group, or thiol group.