Abstract: A solid ionic electrolyte having an organic plastic crystal solvent (e.g. succinonitrile) doped with lithium bioxalato borate salt (LiBOB) may be used in an electrochemical device. Electrochemical devices are disclosed having a cathode, an anode, and a solid ionic electrolyte having a neutral organic plastic crystal solvent doped with LiBOB alone or in combination with another lithium salt. Such devices have a stable electrolyte interface over a broad potential window combined with high energy density delivery capacity and, in one example, the favorable properties of a neutral organic plastic crystal matrix such as succinonitrile.

Abstract: A solid ionic electrolyte having a neutral organic plastic crystal matrix doped with an ionic salt may be used in an electrochemical device having an anode comprising a Li-containing material having an electrochemical potential within about 1.3 V of lithium metal. Electrochemical devices are disclosed having a cathode, an anode of a Li-containing material having an electrochemical potential within about 1.3 V of lithium metal, and a solid ionic electrolyte having a neutral organic plastic crystal matrix doped with an ionic salt. Such devices have high energy density delivery capacity combined with the favorable properties of a neutral organic plastic crystal matrix such as succinonitrile.

Abstract: A solid ionic electrolyte having an organic plastic crystal solvent (e.g. succinonitrile) doped with lithium bioxalato borate salt (LiBOB) may be used in an electrochemical device. Electrochemical devices are disclosed having a cathode, an anode, and a solid ionic electrolyte having a neutral organic plastic crystal solvent doped with LiBOB alone or in combination with another lithium salt. Such devices have a stable electrolyte interface over a broad potential window combined with high energy density delivery capacity and, in one example, the favourable properties of a neutral organic plastic crystal matrix such as succinonitrile.

Abstract: The invention disclosed is a composition of a single-phase solid solution of LiMnO2 and LiMO3 having a Li2MnO3-type crystallographic structure and the general formula Lii+y/3Mn2y/3M(1?y)O2, wherein 0<y<1, manganese is in the 4+ oxidation state, M is one or more transition metal or other cations which have an appropriate ionic radii to be inserted into the structure without unduly disrupting it, but not solely Ni or Cr, e.g. one or more the first row transition metals: Ti, V, Cr, Mn, Fe, Co, Ni or Cu, or other specific other cations: Al, Mg, Mo, W, Ta, Si, Sn, Zr, Be, Ca, Ga, and P, and M has an average oxidation state of +3. Also disclosed are compositions and structures of the materials e.g in the form of a positive electrode for a non-aqueous lithium cell or battery.

Abstract: A solid ionic electrolyte having a neutral organic plastic crystal matrix doped with an ionic salt may be used in an electrochemical device having an anode comprising a Li-containing material having an electrochemical potential within about 1.3 V of lithium metal. Electrochemical devices are disclosed having a cathode, an anode of a Li-containing material having an electrochemical potential within about 1.3 V of lithium metal, and a solid ionic electrolyte having a neutral organic plastic crystal matrix doped with an ionic salt. Such devices have high energy density delivery capacity combined with the favourable properties of a neutral organic plastic crystal matrix such as succinonitrile.

Abstract: A lithium metal oxide positive electrode for a non-aqueous lithium cell or battery is disclosed. The positive electrode comprises a lithium metal oxide having a layered structure and a general formula, after in-situ or ex-situ oxidation, of LixMnyM1-y O2 wherein 0?×?0.20, 0<y<1, manganese is in the 4+ oxidation state, and M is one or more the first row transition metals: Ti, V, Cr, Mn, Fe, Co, Ni or Cu, or other specific other canons: Al, Mg, Mo, W, Ta, Si, Sn, Zr, Be, Ca, Ga, and P, which have an appropriate ionic radii to be inserted in to the structure without unduly disrupting it. Usage of the materials of the invention in lithium cells and batteries is disclosed. A process is disclosed for formation of materials of the invention.

Abstract: The invention disclosed relates to a compound of molecular formula LixCryMn2−yO4+z, wherein 2.2<x<4, 0<y<2 and z≧0, and to the use of this compound as a cathode material in secondary lithium and lithium ion cells.

Abstract: The invention disclosed is an alkali metal-ion secondary cell having a carbonaceous anode and an electrolyte, comprising an alkali metal salt dissolved in an organic electrolyte solvent. Intercalation and de-intercalation during repeated charge/discharge cycle of the secondary cell using a conventional electrolyte solvent causes continual exposure of bare surfaces of the carbonaceous material to the electrolyte, resulting in continual consumption of electrolyte in the formation of new passivation films on the bared or partially covered surfaces, adversely affecting the performance and capacity of the cell. An improvement on the conventional electrolyte involves the addition of fluorinated organic solvent to the conventional electrolyte and results in a more stable passivation film, much less consumption of electrolyte and better performance and cell capacity.