The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 19, 2022
Filed:
Jul. 10, 2019
Total Marketing Services, Puteaux, FR;
Eric Lacroix, Amberieux d'Azergues, FR;
Philippe China, Seyssuel, FR;
Francis Rondelez, Fontenay-aux-Roses, FR;
Total Marketing Services, Puteaux, FR;
Abstract
The present invention relates to a composition for cooling a propulsion system of an electric or hybrid vehicle including at least one battery, comprising: (i) at least one base oil or at least one hydrocarbon-based fluid with a boiling point of greater than or equal to 50° C.; (ii) at least one fire retardant corresponding to formula (I)R-L-R  (I) in which Ris a perfluorinated or partially fluorinated group, Ris a hydrocarbon-based group, and L is a linker; and (iii) at least one fluoro compound with a boiling point of between 50 and 250° C. The invention also relates to the use of at least one fluoro compound with a boiling point of between 50° C. and 250° C. for promoting the contact between a fire retardant corresponding to formula (I) and an element of a propulsion system of an electric or hybrid vehicle, when thermal runaway is observed, said fire retardant of formula (I) being formulated in a base oil, or a hydrocarbon-based fluid with a boiling point of greater than or equal to 50° C. Finally, the invention relates to a process for cooling and fire-protecting at least one battery of a propulsion system of an electric or hybrid vehicle, comprising at least one step of placing at least one battery in contact with a composition according to the invention.