This application provides a mixed positive electrode material, a positive electrode plate and a preparation method thereof, a battery, and an apparatus. The mixed positive electrode material includes a mixed component consisting of a material of lithium iron phosphate chemical system and a material of ternary chemical system, where the material of lithium iron phosphate chemical system is secondary particles with an average specific surface area within 10 m.sup.2/g. In the mixed positive electrode material of this application, the introduction of lithium iron phosphate secondary particles having a low specific surface area improves ease of processing of the mixed positive electrode material, making a slurry less prone to agglomeration and the two materials highly miscible. When the positive electrode plate is prepared by using the mixed positive electrode material of this application, uniform distribution of the positive electrode material on the positive electrode plate can be effectively improved.

A method of making an anode for use in an energy storage device is provided. The method includes providing a current collector having an electrically conductive substrate and a surface layer overlaying a first side of the electrically conductive substrate. A second side of the electrically conductive substrate includes a filament growth catalyst, wherein the second side is opposite the first. The method further includes depositing a lithium storage layer onto the surface layer using a first CVD process forming a plurality of lithium storage filamentary structures on the second side of the electrically conductive substrate using second CVD process.

A method of making an anode for use in an energy storage device is provided. The method includes providing a current collector having an electrically conductive substrate and a surface layer overlaying a first side of the electrically conductive substrate. A second side of the electrically conductive substrate includes a filament growth catalyst, wherein the second side is opposite the first. The method further includes depositing a lithium storage layer onto the surface layer using a first CVD process forming a plurality of lithium storage filamentary structures on the second side of the electrically conductive substrate using second CVD process.

A method for preparing a solid electrolyte for an all-solid state battery, may include obtaining a slurry by dispersing a first raw material comprising lithium sulfide; and a second raw material selected from the group consisting of silicon sulfide, phosphorus sulfide, germanium sulfide, boron sulfide, and a combination thereof in a solvent; and drying the slurry.

A method for preparing a solid electrolyte for an all-solid state battery, may include obtaining a slurry by dispersing a first raw material comprising lithium sulfide; and a second raw material selected from the group consisting of silicon sulfide, phosphorus sulfide, germanium sulfide, boron sulfide, and a combination thereof in a solvent; and drying the slurry.

The invention relates to composite multilayer lithium ion battery anodes that include a porous metal alloy foam, and a lithium ion conductor coating applied to the metal alloy foam. The metal alloy foam can include structurally isomorphous alloys of lithium and, optionally, lithium and magnesium. The lithium ion conductor coating can include ternary lithium silicate, such as, lithium orthosilicate. Lithium ions from the ternary lithium silicate may be deposited within the pores of the metal alloy foam. Optionally, the lithium ion conductor coating may include a dopant. The dopant can include one or more of magnesium, calcium, vanadium, niobium and fluorine, and mixtures and combinations thereof.

The present disclosure relates to an anode electrode active material for a secondary battery containing nickel cobalt molybdenum oxide, an anode electrode for a secondary battery including the same, a secondary battery including the anode electrode for a secondary battery, and a method for manufacturing the same. The novel anode electrode material for a sodium secondary battery containing nickel cobalt molybdenum oxide according to the present disclosure allows intercalation/deintercalation reaction of sodium ion during charge/discharge and does not undergo significant volume change during the intercalation reaction because structure is maintained stably during repeated charge/discharge. As a result, electrode damage and electric short circuit are decreased and, thus, improved electrochemical characteristics can be achieved in long-life and high-rate capability.

A negative electrode active material tor a secondary battery includes a silicate composite particle including crystalline silicon particles, an amorphous phase comprising an Li element, an O element, and an Si element, and a silicon oxide phase, wherein the silicon oxide phase and the silicon particles are dispersed in the amorphous phase.

Electrodepositable compositions including an aqueous medium, an ionic resin and particles including thermally produced graphenic carbon nanoparticles are disclosed. The compositions may also include lithium-containing particles. Electrodeposited coatings comprising a cured ionic resin, thermally produced graphenic carbon nanoparticle and lithium-containing particles are also disclosed. The electrodeposited coatings may be used as coatings for lithium ion battery electrodes.

A method of preparing a lithium-ion battery electrode, S1, preparing a carbon nanotube raw material; S2, providing an electrode active material and a solvent; S3, mixing the carbon nanotube raw material and the electrode active material with the solvent to form a mixture, and stirring the mixture to form an electrode mixture; and S4, spraying the electrode mixture on a substrate to form an electrode layer, and removing the substrate and drying the electrode layer to form the lithium-ion battery electrode.