US 12,438,224 B2
Flame resistant materials for electric vehicle battery applications
Claus H. G. Middendorf, Neuss (DE); Christoph Kuesters, Korschenbroich (DE); Kerstin C. Rosen, Cologne (DE); Bernd Kühneweg, Duesseldorf (DE); and Walter R. Romanko, Austin, TX (US)
Assigned to 3M Innovative Properties Company, St. Paul, MN (US)
Appl. No. 17/781,492
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
PCT Filed Dec. 2, 2020, PCT No. PCT/US2020/062777
§ 371(c)(1), (2) Date Jun. 1, 2022,
PCT Pub. No. WO2021/113281, PCT Pub. Date Jun. 10, 2021.
Claims priority of provisional application 62/942,279, filed on Dec. 2, 2019.
Prior Publication US 2023/0035787 A1, Feb. 2, 2023
Int. Cl. H01M 10/625 (2014.01); C09D 1/02 (2006.01); C09D 5/18 (2006.01); C09D 7/61 (2018.01); C09D 133/04 (2006.01); H01M 10/658 (2014.01); H01M 50/204 (2021.01); H01M 50/24 (2021.01); H01M 50/282 (2021.01); H01M 50/293 (2021.01)
CPC H01M 50/24 (2021.01) [C09D 1/02 (2013.01); C09D 5/18 (2013.01); C09D 7/61 (2018.01); C09D 133/04 (2013.01); H01M 10/625 (2015.04); H01M 10/658 (2015.04); H01M 50/204 (2021.01); H01M 50/282 (2021.01); H01M 50/293 (2021.01); H01M 2220/20 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A fire barrier article comprising,
a flame-resistant substrate layer having a first major surface and a second major surface, wherein the flame resistance substrate layer is a phlogopite mica sheet;
and
a fire protection coating composition comprising:
an inorganic binder, being potassium silicate;
a first inorganic filler is phlogopite mica having 60 micron median particle size; and
a second inorganic filler is kaolin clay,
a third inorganic filler is a glass fiber,
wherein the potassium silicate is present in an amount of 54 wt %,
wherein the first inorganic filler is present in an amount of 0.09 wt %,
wherein the second inorganic filler is present in an amount of 36 wt %, and
wherein the third inorganic filler is present in an amount of 0.01 wt %, wt % being with respect to the weight of the fire protection coating composition and wherein the fire protection coating is disposed on a substantial portion of the first major surface of the flame-resistant substrate layer.