Abstract: The present invention relates to a membraneless direct-type fuel cell, which directly uses oxidizable phosphorus compound, sulphur compound or nitrogen compound as fuel.

Abstract: The present invention relates to a method for preparing a graphene/HE-NCM composite, wherein more than one HE-NCM particles of the formula (1) xLi2MnO3.(1?x)LiNiyCozMn1-y-zO2, wherein 0<x<1, 0<y<1, and 0<z<1, are in electrical contact with each other via one or multiple graphene flakes, said method including: a) dispersing HE-NCM particles in a solution of graphene oxide by ultrasonication to give a dispersion; b) lyophilization of the dispersion to give a graphene oxide/HE-NCM composite; c) thermal decomposition of the graphene oxide/HE-NCM composite to give the graphene/HE-NCM composite. The present invention further relates to a graphene/HE-NCM composite for lithium ion battery prepared by said method, an electrode material and a lithium ion battery comprising said graphene/HE-NCM composite.

Abstract: A coated lithium-rich layered oxide consisting of: a lithium-rich layered oxide represented by the formula xLi2MO3(1?x) LiM?O2, wherein M is Mn, Ti, Zr or any combination thereof, M? is Mn, Ni, Co or any combination thereof, and 0<x<1, and an outer layer formed by gas deposition of P2O5. A process for producing the coated lithium-rich layered oxide, a cathode comprising the coated lithium-rich layered oxide, and a rechargeable lithium battery.

Abstract: Provided are a lithium-metal oxide nanoparticles and the preparation method thereof. The lithium-metal oxide nanoparicles have a general formula: xLi2MnO3.(1-x)LiNiyCozMn1-y-zO2, where 0<x<1, 0<y<1, 0<z<1, wherein the nanoparticles have a primary particle size ranging from 50 nm to 500 nm. The preparation method comprises reacting a mixture comprising transition metal compounds of manganese (Mn), nickel (Ni) and cobalt (Co), and a lithium compound in a molten salt used as a reaction medium, wherein the respective transition metal compounds are selected from the group consisting of oxides and salts of Mn, Ni, and Co; the lithium compound is selected from the group consisting of lithium oxides and lithium salts. Also provided are a cathode material for a lithium ion battery comprising the lithium-metal oxide nanoparticles and a lithium ion battery comprising the lithium-metal oxide nanoparticles.

Abstract: The invention relates to a process for preparing a core-shell structured lithiated manganese oxide, comprising the steps of providing spinel LiMxMn2-xO4 particles, where M is one or more metal ions selected from the group consisting of Li, Mg, Cr, Al, Co, Ni, Zn, Cu, and La, and 0?x<1, as core particles, and subjecting the spinel particles to a heat-treatment with a reactive chemical reagent in the form of liquid or gas to form a shell layer on the surface of the core particles, and to the prepared core-shell structured lithiated manganese oxide, and its use as a cathode material for a lithium ion battery