US 11,735,332 B2
Thermal barrier material for a rechargeable electrical energy storage system
Mitchell T. Huang, Austin, TX (US); Kerstin C. Rosen, Cologne (DE); Claus H. G. Middendorf, Neuss (DE); Christoph Kuesters, Korschenbroich (DE); Jan Thomas Krapp, Dusseldorf (DE); Donald A. Gagnon, Franklin, NH (US); Amy Douglass, Austin, TX (US); and Robert H. Turpin, Hill, NH (US)
Appl. No. 17/597,867
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
PCT Filed Jul. 31, 2020, PCT No. PCT/US2020/044442
§ 371(c)(1), (2) Date Jan. 27, 2022,
PCT Pub. No. WO2021/022130, PCT Pub. Date Feb. 4, 2021.
Claims priority of provisional application 62/961,410, filed on Jan. 15, 2020.
Claims priority of provisional application 62/929,127, filed on Nov. 1, 2019.
Claims priority of provisional application 62/881,491, filed on Aug. 1, 2019.
Prior Publication US 2022/0262539 A1, Aug. 18, 2022
Int. Cl. H01B 3/08 (2006.01); H01M 10/625 (2014.01); H01M 10/658 (2014.01); H01M 50/249 (2021.01); H01M 50/24 (2021.01); H01M 50/276 (2021.01); H01M 50/282 (2021.01); B32B 5/26 (2006.01); B32B 5/02 (2006.01); B32B 7/12 (2006.01); B32B 29/02 (2006.01); C03C 25/1095 (2018.01); C03C 25/42 (2006.01); C09K 21/02 (2006.01)
CPC H01B 3/08 (2013.01) [B32B 5/022 (2013.01); B32B 5/028 (2013.01); B32B 5/266 (2021.05); B32B 5/273 (2021.05); B32B 7/12 (2013.01); B32B 29/02 (2013.01); C03C 25/1095 (2013.01); C03C 25/42 (2013.01); C09K 21/02 (2013.01); H01M 10/625 (2015.04); H01M 10/658 (2015.04); H01M 50/24 (2021.01); H01M 50/249 (2021.01); H01M 50/276 (2021.01); H01M 50/282 (2021.01); B32B 2250/20 (2013.01); B32B 2255/02 (2013.01); B32B 2255/20 (2013.01); B32B 2262/101 (2013.01); B32B 2262/105 (2013.01); B32B 2262/108 (2013.01); B32B 2307/206 (2013.01); B32B 2307/304 (2013.01); B32B 2307/3065 (2013.01); B32B 2307/718 (2013.01); B32B 2307/732 (2013.01); B32B 2457/10 (2013.01); H01M 2220/20 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A multilayer material for use as a thermal insulation barrier in a rechargeable electrical energy storage system, the multilayer material comprising:
at least one inorganic fabric layer;
a nonwoven layer comprising inorganic particles and inorganic fibers; and
an inorganic adhesive layer, located between the at least one inorganic fabric layer and the nonwoven layer, the inorganic adhesive layer comprising:
inorganic constituents present in an amount of at least 99 wt. %, and
an organic additive present in an amount of at least 0.01 wt. % and less than 1 wt. %, the organic additive is selected from the group consisting of a sugar, a sugar alcohol, glycerin, a polyol, a polyvinyl alcohol, an acrylic polymers, and a rubber lattices,
wherein wt. % is based on a total solids content of the inorganic adhesive layer, and
wherein the at least one inorganic fabric layer and the nonwoven layer are bonded via the inorganic adhesive layer.