US 12,434,978 B2
Microgranulation methods and product particles therefrom
Mark Obrovac, Halifax (CA); Lituo Zheng, Halifax (CA); and Matthew Garayt, Halifax (CA)
Assigned to Novonix Battery Technology Solutions Inc., Bedford (CA)
Appl. No. 17/638,646
Filed by NOVONIX BATTERY TECHNOLOGY SOLUTIONS INC., Bedford (CA)
PCT Filed Jul. 24, 2020, PCT No. PCT/US2020/043621
§ 371(c)(1), (2) Date Feb. 25, 2022,
PCT Pub. No. WO2021/040932, PCT Pub. Date Mar. 4, 2021.
Claims priority of provisional application 63/020,526, filed on May 5, 2020.
Claims priority of provisional application 62/946,938, filed on Dec. 11, 2019.
Claims priority of provisional application 62/893,787, filed on Aug. 29, 2019.
Prior Publication US 2022/0298023 A1, Sep. 22, 2022
Int. Cl. C01G 1/02 (2006.01); C01G 45/1228 (2025.01); C01G 45/22 (2025.01); C01G 51/50 (2025.01); C01G 51/82 (2025.01); C01G 53/44 (2025.01); C01G 53/50 (2025.01); C01G 53/82 (2025.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01)
CPC C01G 1/02 (2013.01) [C01G 45/1228 (2013.01); C01G 45/22 (2025.01); C01G 51/50 (2013.01); C01G 51/82 (2025.01); C01G 53/44 (2013.01); C01G 53/50 (2013.01); C01G 53/82 (2025.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); C01P 2002/52 (2013.01); C01P 2002/74 (2013.01); C01P 2002/77 (2013.01); C01P 2002/85 (2013.01); C01P 2004/03 (2013.01); C01P 2004/32 (2013.01); C01P 2004/52 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01); C01P 2004/64 (2013.01); C01P 2006/40 (2013.01)] 35 Claims
OG exemplary drawing
 
1. A microgranulation method of aggregating precursor particles comprising:
obtaining an amount of precursor particles having an average particle size less than 1000 μm;
obtaining an amount of templating media having a hardness greater than that of the precursor particles;
preparing a mixture comprising the amounts of precursor particles and templating media;
dry mixing the mixture in a chamber with a blade that rotates relative to a chamber wall thereby aggregating the precursor particles into product particles; and
separating the product particles from the templating media after aggregating the precursor particles into product particles;
wherein the rotational speed is about 8 m/s or greater.