US 11,702,577 B2
High thermal conductivity hydrocarbon thermal management fluids for electric vehicles
Shuji Luo, Basking Ridge, NJ (US); Andrew E. Taggi, New Hope, PA (US); Kevin J. Kelly, Mullica Hill, NJ (US); and Daniel Bien, Rheinland Pfalz (DE)
Assigned to EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY, Annandale, NJ (US)
Filed by EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY, Annandale, NJ (US)
Filed on Jun. 7, 2021, as Appl. No. 17/340,638.
Claims priority of provisional application 63/040,614, filed on Jun. 18, 2020.
Prior Publication US 2021/0395592 A1, Dec. 23, 2021
Int. Cl. C09K 5/10 (2006.01); H05K 7/20 (2006.01)
CPC C09K 5/10 (2013.01) [H05K 7/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A thermal management fluid for use in an electric system comprising:
a base oil as a major component, wherein the base oil comprises:
(i) a branch content of about 22 mol % to about 30 mol %, wherein the branch content is a tertiary carbon content of the base oil; and
(ii) a naphthene content of about 30 wt. % or less;
wherein the thermal management fluid has a thermal conductivity at kinematic viscosity of 5 mm2/s at least about 5% greater than a predicted thermal conductivity characterized by the following regression model equation:
TCPred=84.873*(BC)−0.17
wherein TCPred is the predicted thermal conductivity measured in mW/mK, and BC is the branch content of the base oil.