US 11,814,520 B2
Thermal gap filler and its application for battery management system
Yan Zheng, Shanghai (CN); Zhongwei Cao, Shanghai (CN); Qiang Huang, Shanghai (CN); Rui Yang, Shanghai (CN); Sandrine Teixeira de Carvalho, Rosseignies (BE); and Lujing Xie, Shanghai (CN)
Assigned to DOW SILICONES CORPORATION, Midland, MI (US)
Appl. No. 17/253,744
Filed by DOW SILICONES CORPORATION, Midland, MI (US)
PCT Filed Jun. 27, 2018, PCT No. PCT/CN2018/092983
§ 371(c)(1), (2) Date Dec. 18, 2020,
PCT Pub. No. WO2020/000228, PCT Pub. Date Jan. 2, 2020.
Prior Publication US 2021/0269643 A1, Sep. 2, 2021
Int. Cl. C08L 83/04 (2006.01); H01M 10/625 (2014.01); H01M 10/66 (2014.01); C08K 5/00 (2006.01); C08K 3/04 (2006.01); C08K 3/40 (2006.01); C08K 7/20 (2006.01); C08K 7/18 (2006.01); C08K 3/22 (2006.01); C08K 3/38 (2006.01); H01M 10/48 (2006.01)
CPC C08L 83/04 (2013.01) [C08K 5/005 (2013.01); H01M 10/625 (2015.04); H01M 10/66 (2015.04); C08K 3/042 (2017.05); C08K 3/40 (2013.01); C08K 7/18 (2013.01); C08K 2003/2227 (2013.01); C08K 2003/385 (2013.01); C08K 2201/001 (2013.01); C08K 2201/005 (2013.01); C08L 2203/20 (2013.01); H01M 10/486 (2013.01)] 13 Claims
 
1. A thermally conductive silicone composition comprising:
(A) 100 parts by mass of an alkenyl group-containing organopolysiloxane having a viscosity of from 10 to 100000 mPa·s at 25° C.;
(B) an organohydrogenpolysiloxane having a viscosity of from 1 to 1000 mPa·s at 25° C. having an average of two to four silicon-bonded hydrogen atoms in a molecule, comprised at a quantity whereby an amount of the silicon-bonded hydrogen atoms in component (B) is 0.2 to 5 moles per mole of the alkenyl groups in component (A), wherein at least two of the silicon-bonded hydrogen atoms are located on the side chains of the molecule;
(C) a catalytic quantity of a hydrosilylation reaction catalyst;
(D) 400 to 3500 parts by mass of a thermally conductive filler;
(E) an alkoxysilane having an alkyl group containing 6 or more carbon atoms in a molecule, comprised at a quantity of from 0.1 to 2.0 mass % relative to component (D); and
(F) glass beads having a particle size within the range of 100 μm to 500 containing less than 0.1 mass % of iron, comprised at a quantity of from 0.1 to 10 parts by mass relative to 100 parts by mass of component (A).