▎ 摘　　要

NOVELTY - A composite particulate comprises one or more particles of a cathode active material encapsulated or embedded in an electrically and/or ionically conducting polymer gel network. The cathode active material is chosen from lithium-nickel-cobalt-metal oxide (I). USE - Composite particulate used in powder mass for forming cathode for lithium-ion cell, lithium metal secondary cell (all claimed) and lithium battery. Uses include but are not limited to energy storage devices, aircraft, electric vehicles, drones, renewable energy storage, and smart grid applications. ADVANTAGE - The composite particulate has improved rate capability and cycling stability of the cathode active materials. DETAILED DESCRIPTION - A composite particulate comprises one or more particles of a cathode active material encapsulated or embedded in an electrically and/or ionically conducting polymer gel network. The cathode active material is chosen from lithium-nickel-cobalt-metal oxide of formula: LixNiyCozMwO2 (I), where M is chosen from aluminum, titanium, tungsten, chromium, molybdenum, magnesium, beryllium, calcium, tantalum and/or silicon, x is 0-1.2, y+z+w is 0.8-1.2, w is 0.25-0.5, y and z are more than zero, and z/y is 0-0.5. INDEPENDENT CLAIMS are included for the following: (1) powder mass, which comprises composite particulates; (2) cathode, which comprises powder mass as a cathode active material; (3) lithium-ion cell or lithium metal secondary cell, which comprises an anode, a cathode, and an electrolyte in ionic contact with the anode and cathode; and (4) production of composite particulates, which involves (A) dispersing multiple particles of the cathode active material in a reacting mass comprising an oligomer or monomer, an initiator or catalyst and a curing or cross-linking agent to form reacting slurry, (B) forming the reacting slurry into reacting droplets comprising one or more cathode active material particles dispersed in a matrix of polymerizing or cross-linking chains, and (C) converting the polymerizing or cross-linking chains into a network polymer in the droplet.