An electrode for use in a lithium-ion battery. The electrode comprises a group IV-VI compound and a transition metal group VI compound on a three-dimensional graphene network. A major portion of the transition metal group VI compound is provided on top of the group IV-VI compound or in close proximity to it, whereby the molybdenum group VI compound contributes to the decomposition of a lithium group VI compound at the surface of the group IV-VI compound.

An electrode for use in a lithium-ion battery. The electrode comprises a group IV-VI compound and a transition metal group VI compound on a three-dimensional graphene network. A major portion of the transition metal group VI compound is provided on top of the group IV-VI compound or in close proximity to it, whereby the molybdenum group VI compound contributes to the decomposition of a lithium group VI compound at the surface of the group IV-VI compound.

A three-dimensional all-solid-state lithium ion batteries including a cathode protection layer, the battery including: a cathode including a plurality of plates which are vertically disposed on a cathode current collector; a cathode protection layer disposed on a surfaces of the cathode and the cathode current collector; a solid state electrolyte layer disposed on the cathode protection layer; an anode disposed on the solid state electrolyte layer; and an anode current collector disposed on the anode, wherein the cathode protection layer is between the cathode and the solid state electrolyte layer, and wherein the solid state electrolyte layer is between the cathode protection layer and the anode.

A novel chemical synthesis route for lithium ion battery applications focuses on the synthesis of a new active material using NMC (Lithium Nickel Manganese Cobalt Oxide) as the precursor for a phosphate material having a layered crystal structure. Partial phosphate generation in the layer structured material stabilizes the material while maintaining the large capacity nature of the layer structured material.

A novel chemical synthesis route for lithium ion battery applications focuses on the synthesis of a new active material using NMC (Lithium Nickel Manganese Cobalt Oxide) as the precursor for a phosphate material having a layered crystal structure. Partial phosphate generation in the layer structured material stabilizes the material while maintaining the large capacity nature of the layer structured material.

An object of the present invention is to provide a negative electrode active material having excellent charge/discharge characteristics (charge and discharge capacities, initial coulombic efficiency, and cycle characteristics). The object is achieved by providing a negative electrode active material containing: a silicon-based inorganic compound (a) composed of silicon (excluding zerovalent silicon), oxygen, and carbon; and silicon (zerovalent) (b). The equivalent constituent ratio [Q units/(D units+T units+Q units)] indicating the chemical bonding state (D units [SiO.sub.2C.sub.2], T units [SiO.sub.3C], Q units[SiO.sub.4]) of the silicon (excluding zerovalent silicon) present in the silicon-based inorganic compound (a) is within the range of from 0.30 to 0.80 inclusive.

Prelithiation of a battery anode carried out using controlled lithium metal vapor deposition. Lithium metal can be avoided in the final battery. This prelithiated electrode is used as potential anode for Li-ion or high energy LiS battery. The prelithiation of lithium metal onto or into the anode reduces hazardous risk, is cost effective, and improves the overall capacity. The battery containing such an anode exhibits remarkably high specific capacity and a long cycle life with excellent reversibility.

Prelithiation of a battery anode carried out using controlled lithium metal vapor deposition. Lithium metal can be avoided in the final battery. This prelithiated electrode is used as potential anode for Li-ion or high energy LiS battery. The prelithiation of lithium metal onto or into the anode reduces hazardous risk, is cost effective, and improves the overall capacity. The battery containing such an anode exhibits remarkably high specific capacity and a long cycle life with excellent reversibility.

A method of creating a composite cathode for use within a lithium ion battery. The method beginning with the step of preparing an electrolytic solution. The electrolytic solution includes a plasticizer, a crosslinkable polyether, a first lithium salt and a second lithium salt. The method ending with the step of impregnating a cathodic material with the electrolytic solution so as to form the composite cathode.

A method of creating a composite cathode for use within a lithium ion battery. The method beginning with the step of preparing an electrolytic solution. The electrolytic solution includes a plasticizer, a crosslinkable polyether, a first lithium salt and a second lithium salt. The method ending with the step of impregnating a cathodic material with the electrolytic solution so as to form the composite cathode.