TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: At least one ion pair comprises a lithium ion. The lithium ion dissociates from at least one salt selected from lithium hexafluorophosphate, lithium imide, lithium perfluorosulphonimide (LiTFSI), lithium Inflate, lithium tetrafluoroborate, lithium perchlorate, lithium iodide, lithium trifluorocarbonate, lithium nitrate, lithium thiocyanate, lithium hexafluoroarsenate and/or lithium methide. At least one ion is present in an amount of greater than 0-1 wt.% based on a total weight of the electrolyte composition.The metal oxide comprises silica, alumina, zirconia and/or titania. The scavenger removes water, acid and/or hydrogen halide from the electrolyte composition.The scavenger comprises at least one weakly basic compound.The scavenger comprises silazanes, amides, amines, phosphites, phosphides and/or their derivatives.    TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Article: The article further comprises a positive electrode; a negative electrode; and at least one separator positioned between the positive and negative electrodes.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The electrolyte composition comprises a liquid.The electrolyte composition contains water of less than 100 parts per million (ppm).The electrolyte composition comprises functionalized metal oxide particles; and at least one solvent; where the electrolyte composition is non-elastic when the functionalized metal oxide particles are present in an amount of at least 10 (preferably at least 14, especially at least 15, particularly at least 16) wt.% based on the weight of the electrolyte composition.The electrolyte composition in form of dispersion comprises: functionalized metal oxide particles; and at least one solvent.The electrolyte composition comprises: functionalized metal oxide particles; and at least one solvent; where the functionalized metal oxide particles are present in an amount of less than or equal to 2 (preferably less than or equal to 1, especially less than or equal to 0.5, particularly less than or equal to 0.2) wt.% based on the weight of the electrolyte composition.Preferred Method: The first solvent of less than 100 ppm remains in the dispersion after the removing step.Preferred Components: The functionalized metal oxide particles comprise at least one functional group covalently bonded to and extending from at least a portion of an outer surface of the functionalized metal oxide particles, at least one functional group is of formula -M(R)x(R')y.The functionalized metal oxide particles are present in an amount of 0-50 (preferably 3-20) wt.% based on a total weight of the electrolyte composition.The functionalized metal oxide particles have an average particle size of less than 100 nanometers (nm).The functionalized metal oxide particles and at least one ion are each uniformly distributed throughout the at least one solvent.At least one solvent comprises ethylene carbonate, dimethyl carbonate, dimethyl carbonate, propylene carbonate, diethyl carbonate and/or polyethylene oxide (preferably mixture of ethylene carbonate and dimethyl carbonate).The solvent comprises a non-aqueous solvent.The first solvent is aqueous and the second solvent is non-aqueous.M = metal or metalloid atom;R = optionally branched alkyl or alkenyl or aryl (all optionally substituted) (preferably T1);R' = H or R (preferably H or T1);x and y = 0-3;(x+y) = 1-3; andT1 = 1-8C alkyl or 2-8C alkenyl (both optionally branched and optionally substituted by at least one F, amino or glycidoxy) or phenyl optionally substituted by at least one F. EXAMPLE - No suitable example given.