• 专利标题:   Composite particulate used in anode for lithium-ion battery, lithium metal battery, lithium-sulfur battery, lithium-selenium battery, or lithium-air battery, comprises anode-active material particles.
  • 专利号:   US2022246936-A1, WO2022170334-A1
  • 发明人:   JANG B Z
  • 专利权人:   GLOBAL GRAPHENE GROUP INC, GLOBAL GRAPHENE GROUP INC
  • 国际专利分类:   H01M010/0525, H01M004/04, H01M004/36, H01M004/583, H01M004/60, C08K005/5399, C08K009/10, C08L085/02, H01M010/052, H01M004/139, H01M004/62, H01M004/64
  • 专利详细信息:   US2022246936-A1 04 Aug 2022 H01M-004/60 202274 English
  • 申请详细信息:   US2022246936-A1 US166026 03 Feb 2021
  • 优先权号:   US166026

▎ 摘  要

NOVELTY - Composite particulate has a diameter of 10 nm to 50 µm and comprises one or multiple anode-active material particles that are dispersed in a high-elasticity polymer matrix or encapsulated by a high-elasticity polymer shell. The high-elasticity polymer matrix or shell has a recoverable elastic tensile strain not less than 5%, when measured without an additive or reinforcement, and a lithium-ion conductivity not less than 10-8S/cm at room temperature. The high-elasticity polymer comprises a crosslinked polymer network of chains derived from a phosphazene compound. USE - Composite particulate used in anode for lithium-ion battery, lithium metal battery, lithium-sulfur battery, lithium-selenium battery, or lithium-air battery (all claimed). ADVANTAGE - The composite particulate achieves advanced architectures, such as polyphosphazenes with a branched polyphosphazene backbone, supramolecular structures from polyphosphazenes, helical structures with polyphosphazenes, cyclomatrix polyphosphazenes, and dendrimers from hexachloro-cyclotriphosphazene, and achieves absence of chlorine in high yields, and can facilitate the reaction of removing hydrogen chloride. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for manufacturing multiple composite particulates, which involves dispersing multiple particles of an anode active material in a precursor polymer solution to form a suspension, operating a secondary particle-forming procedure to shape the suspension into multiple droplets and remove the liquid solvent from the droplets, and curing the reactive phosphazene compound to form said composite particulates.