US 12,266,801 B2
Active material component of a composition for forming an electrode of a battery in a dry process and a method of forming the electrode
Dewen Kong, Shanghai (CN); Meiyuan Wu, Shanghai (CN); Si Chen, Shanghai (CN); and Haijing Liu, Shanghai (CN)
Assigned to GM Global Technology Operations LLC, Detroit, MI (US)
Filed by GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed on May 5, 2022, as Appl. No. 17/737,084.
Claims priority of application No. 202210228876.6 (CN), filed on Mar. 9, 2022.
Prior Publication US 2023/0290953 A1, Sep. 14, 2023
Int. Cl. H01M 4/62 (2006.01); H01M 4/02 (2006.01)
CPC H01M 4/625 (2013.01) [H01M 2004/021 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An active material component of a composition for forming an electrode of a battery in a dry process, the active material component comprising:
a dry powder including a plurality of grains of an active material; and
an electrically conductive filler material pre-embedded upon and attached to each of the plurality of grains;
wherein each of the plurality of grains of the active material includes two materials selected from the group consisting of an olivine compound, a rock salt, cobalt-free layered oxide, a rock salt layered oxide, a spinel, a tavorite, a borate, a silicate, and an organic compound;
wherein a surface of the plurality of grains of the active material is coated with a doping material selected from the group consisting of aluminum, boron, copper, chromium, lanthanum, molybdenum, magnesium, niobium, phosphorus, rhodium, ruthenium, scandium, strontium, antimony, silicon, tin, titanium, tungsten, vanadium, yttrium, and zirconium; and
wherein the surface of the plurality of grains is doped with about 10% by weight of the doping material.