US 12,278,371 B2
Phosphazene compound-based elastic polymer-encapsulated anode particles for lithium batteries and method of manufacturing
Bor Z. Jang, Centerville, OH (US)
Assigned to Honeycomb Battery Company, Dayton, OH (US)
Filed by Global Graphene Group, Inc., Dayton, OH (US)
Filed on Feb. 3, 2021, as Appl. No. 17/166,026.
Prior Publication US 2022/0246936 A1, Aug. 4, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 4/60 (2006.01); H01M 4/04 (2006.01); H01M 4/36 (2006.01); H01M 4/583 (2010.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01)
CPC H01M 4/608 (2013.01) [H01M 4/0497 (2013.01); H01M 4/366 (2013.01); H01M 4/583 (2013.01); H01M 10/0525 (2013.01); H01M 2004/021 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A composite particulate for a lithium battery, wherein said composite particulate has a diameter from 10 nm to 50 μm and comprises one or more than one anode active material particles that are dispersed in a high-elasticity polymer matrix or encapsulated by a high-elasticity polymer shell, wherein said high-elasticity polymer matrix or shell has a recoverable elastic tensile strain no less than 5%, when measured without an additive or reinforcement dispersed therein, and a lithium ion conductivity no less than 10° S/cm at room temperature and wherein said high-elasticity polymer comprises a crosslinked polymer network of chains derived from a phosphazene compound, wherein an anode active material is selected from the group consisting of: (a) silicon (Si), germanium (Ge), tin (Sn), lead (Pb), antimony (Sb), phosphorus (P), bismuth (Bi), zinc (Zn), aluminum (Al), titanium (Ti), nickel (Ni), cobalt (Co), and cadmium (Cd); (b) alloys or intermetallic compounds of Si, Ge, Sn, Pb, Sb, Bi, Zn, Al, Ti, Ni, Co, or Cd with other elements; (c) oxides, carbides, nitrides, sulfides, phosphides, selenides, and tellurides of Si, Ge, Sn, Pb, Sb, Bi, Zn, Al, Ti, Fe, Ni, Co, V, or Cd, and their mixtures, composites, or lithium-containing composites; (d) salts and hydroxides of Sn; (e) lithium titanate, lithium manganate, lithium aluminate, lithium titanium niobium oxide, lithium-containing titanium oxide, lithium transition metal oxide, ZnCo2O4; (f) carbon or graphite particles (g) prelithiated versions thereof; and (h) combinations thereof.