# US 2021/0280846 A1 · Method for covering particles, especially a battery electrode material particles, and particles obtained with such method and a battery comprising such particle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0280846 A1 - Document ID: US20210280846A1 - Status: Published application - Kind: A1 - Application number: 17/330,383 - Filed: 2021-05-25 - Published: 2021-09-09 - Earliest claimed: 2007-12-12 - Assignees: Forge Nano, Inc. - Applicants: Forge Nano Inc. - Inventors: Erik Maria KELDER; Jan Rudolf VAN OMMEN; John NIJENHUIS - Web page: https://patentgrep.com/patent/US20210280846A1 ## CPC - H01M 4/0428: {Chemical vapour deposition} - B01J 2/16: by suspending the powder material in a gas, e.g. in fluidised beds or as a falling curtain - C23C 16/4417: {Methods specially adapted for coating powder} - C23C 16/442: using fluidised bed process - C23C 16/45525: {Atomic layer deposition [ALD]} - H01M 4/131: Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx - H01M 4/1391: of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx - H01M 4/366: {as layered products} - H01M 4/485: of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy (H01M4/505, H01M4/525 take precedence) - H01M 4/505: of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy - H01M 10/0525: Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries - H01M 2004/028: {Positive electrodes} - Y02E 60/10: Energy storage using batteries - Y10T 428/2991: Coated - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS - C23C: COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL (making metal-coated products by extrusion B21C23/22; covering with metal by connecting pre-existing layers to articles, see the relevant places, e.g. B21D39/00, B23K; metallising of glass C03C; metallising mortars, concrete, artificial stone, ceramics or natural stone C04B41/00; enamelling of, or applying a vitreous layer to, metals C23D; treating metal surfaces or coating of metals by electrolysis or electrophoresis C25D; single-crystal film growth C30B; by metallising textiles D06M11/83; decorating textiles by locally metallising D06Q1/04) - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract Described here is a powder comprising a plurality of lithium-containing particles having a dry, uniform protective layer, wherein the protective layer of the particles is obtained by a sequential vapor phase reaction or adsorption process. Also described is a battery comprising an anode layer and a cathode layer, wherein the cathode layer comprises lithium metal oxide or a lithium metal phosphate, wherein the metal comprises at least one of Nickel, Manganese, Cobalt, Iron, Titanium, and/or Manganese, wherein the cathode particles have a dry, uniform protective layer, and wherein the anode layer comprises lithium titanium oxide particles. ## Claims ### Claim at position 1 1-22. (canceled) ### Claim 23 A powder comprising a plurality of lithium-containing particles having a diameter of 60 μm or less; a uniform alumina protective layer disposed over the lithium-containing particles. ### Claim 24 (depends on 23) A battery comprising an electrode wherein the electrode comprises the lithium-containing particles of claim 23. ### Claim 25 (depends on 23) The powder of claim 23 wherein the lithium-containing particles having a diameter in the range of 10 nm to 500 nm. ### Claim 25 (depends on 23) The powder of claim 23 wherein the lithium-containing particles having a diameter in the range of 10 nm to 100 nm. ### Claim 26 (depends on 23) The powder of claim 23 wherein the lithium-containing particles comprise LiMn2O4, LiCoO2 or LiNiO2. ### Claim 27 (depends on 23) The powder of claim 23 wherein the lithium-containing particles comprise LiFePO4. ### Claim 28 (depends on 23) The powder of claim 23 wherein the lithium-containing particles comprise LiTiOi2. ### Claim 29 (depends on 23) The powder of claim 23 wherein the lithium-containing particles comprise LiMn2O4, and further comprising Mg or Ni. ### Claim 30 (depends on 24) The battery of claim 24 comprising particles of LiFexTiyMn2-x-yO4 where 0