US 11,942,618 B2
Methods, systems, and compositions for the liquid-phase deposition of thin films onto the surface of battery electrodes
Sourav Basu, Oakland, CA (US); and Jonathan Tan, San Leandro, CA (US)
Assigned to CORESHELL TECHNOLOGIES, INCORPORATED, San Leandro, CA (US)
Filed by Coreshell Technologies, Inc., San Leandro, CA (US)
Filed on Aug. 24, 2021, as Appl. No. 17/410,797.
Application 17/410,797 is a continuation of application No. 17/232,945, filed on Apr. 16, 2021, granted, now 11,139,460.
Application 17/232,945 is a continuation of application No. 16/244,024, filed on Jan. 9, 2019, granted, now 10,985,360, issued on Apr. 20, 2021.
Application 16/244,024 is a continuation of application No. PCT/US2018/038612, filed on Jun. 20, 2018.
Claims priority of provisional application 62/522,470, filed on Jun. 20, 2017.
Prior Publication US 2022/0045307 A1, Feb. 10, 2022
Int. Cl. B05C 5/00 (2006.01); B05C 3/00 (2006.01); B05C 9/00 (2006.01); C23C 18/16 (2006.01); H01M 4/04 (2006.01); H01M 4/139 (2010.01); H01M 6/00 (2006.01); H01M 10/0525 (2010.01); B05D 1/02 (2006.01); B05D 1/18 (2006.01); B05D 1/26 (2006.01); B05D 1/28 (2006.01); B05D 1/38 (2006.01); H01M 4/36 (2006.01); H01M 4/38 (2006.01); H01M 10/04 (2006.01); H01M 10/0587 (2010.01)
CPC H01M 4/0402 (2013.01) [B05C 5/00 (2013.01); B05C 9/00 (2013.01); H01M 4/049 (2013.01); H01M 4/139 (2013.01); H01M 6/005 (2013.01); H01M 10/0525 (2013.01); B05C 3/00 (2013.01); B05D 1/02 (2013.01); B05D 1/18 (2013.01); B05D 1/26 (2013.01); B05D 1/28 (2013.01); B05D 1/38 (2013.01); C23C 18/1655 (2013.01); H01M 4/36 (2013.01); H01M 4/362 (2013.01); H01M 4/38 (2013.01); H01M 10/0409 (2013.01); H01M 10/0587 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for coating a thin film onto a lithium-ion battery electrode, comprising:
a plurality of chambers, the plurality of chambers including:
a first reaction chamber configured to apply a first solution to active material of the lithium-ion battery electrode, the first solution including at least a first reagent that reacts with the active material of the lithium-ion battery electrode to produce a partially coated lithium-ion battery electrode having a layer comprising an adsorbed first reagent on a surface of the active material of the lithium-ion battery electrode;
a first rinsing chamber coupled to the first reaction chamber, wherein a first rinsing solution comprising a first rinsing solvent is applied to the partially coated lithium-ion battery electrode in the first rinsing chamber;
a second reaction chamber configured to apply a second solution to the partially coated lithium-ion battery electrode, the second solution including at least a second reagent that is different from the first reagent and that reacts with the adsorbed first reagent bonded onto the surface of the active material of the partially coated lithium-ion battery electrode to produce a fully coated lithium ion battery electrode having an artificial solid electrolyte interphase (SEI) comprising a monolayer of thin film coated onto the surface of the active material, the monolayer of thin film comprising a compound generated from a reaction of the second reagent and the adsorbed first reagent;
a second rinsing chamber coupled to the second reaction chamber, wherein a second rinsing solution comprising a second rinsing solvent is applied to the fully coated lithium ion battery electrode in the second rinsing chamber;
one or more filtration apparatuses coupled to the first rinsing chamber and the second rinsing chamber, wherein the one or more filtration apparatuses separate an amount of the first rinsing solvent and an amount of the second rinsing solvent from unreacted first reagent and unreacted second reagent and recycle the amount of the first rinsing solvent to the first rinsing chamber and the amount of the second rinsing solvent to the second rinsing chamber; and
a conveyance apparatus including a series of rollers for conveying the lithium-ion battery electrode to the first reaction chamber and to the second reaction chamber.