Total Marketing Services

Totalenergies Onetech

Philippe China

Eric Lacroix

Francis Rondelez

Anthony Pelletier

Didier Martin

Marie-Pierre Krafft

The present invention relates to a composition for lubricating a propulsion system of an electric or hybrid vehicle, comprising at least one base oil and at least one fire retardant corresponding to formula (I)R-L-R&#x2003;&#x2003;(I) The invention also relates to the use of at least one fire retardant of formula (I), in a composition for lubricating a propulsion system of an electric or hybrid vehicle, including at least one battery, to give it ignition-resistance properties. Finally, the invention relates to a process for cooling and fire-protecting a battery of a propulsion system of an electric or hybrid vehicle, comprising at least one step of placing at least one battery, in particular a lithium-ion or nickel-cadmium battery, in contact with a composition according to the invention.

Cooling and flame-retardant lubricating composition for a propulsion system of an electric or hybrid vehicle

The present invention relates to a composition for cooling a propulsion system of an electric or hybrid vehicle, comprising (i) at least one hydrocarbon-based fluid with a boiling point of greater than or equal to 50&#xb0; C., and (ii) at least one fire retardant corresponding to formula (I)R-L-R&#x2003;&#x2003;(I) The invention also relates to the use of at least one fire retardant of formula (I), in a composition for cooling a propulsion system of an electric or hybrid vehicle, and more particularly its power electronics and its batteries, to give it ignition-resistance properties, said cooling composition comprising at least one hydrocarbon-based fluid with a boiling point of greater than or equal to 50&#xb0; 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.

Cooling and flame-retardant composition for a propulsion system of an electric or hybrid vehicle

The use of a lubricant composition in order to cool and/or lubricate the engine of an electric vehicle and the different parts thereof, particularly moving parts, is disclosed. In particular, the use of a lubricant composition includes at least one polyalkylene glycol.

Composition for an electric vehicle

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&#xb0; C.; (ii) at least one fire retardant corresponding to formula (I)R-L-R&#x2003;&#x2003;(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&#xb0; C. The invention also relates to the use of at least one fluoro compound with a boiling point of between 50&#xb0; C. and 250&#xb0; 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&#xb0; 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.

The present invention relates to a composition for cooling a propulsion system of an electric or hybrid vehicle, 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&#xb0; C.; and (ii) at least one fire retardant corresponding to formula (I)R-L-R&#x2003;&#x2003;(I) The invention also relates to the use of at least one fire retardant of formula (I) which is at least partially in an encapsulated form in a composition for cooling a propulsion system of an electric or hybrid vehicle, including at least one battery, to give it ignition-resistance properties. Finally, the invention relates to a process for cooling and fire-protecting a battery of a propulsion system of an electric or hybrid vehicle, comprising at least one step of placing at least one battery, in particular a lithium-ion or nickel-cadmium battery, in contact with a composition according to the invention.

The invention is the use, in an electric vehicle, of a fluid having a boiling point in the range of from 200&#xb0; C. to 400&#xb0; C. and a boiling range below 80&#xb0; C., said fluid comprising more than 95% by weight isoparaffins and less than 3% by weight of naphthens, a biocarbon content of at least 95% by weight, containing less than 100 ppm by weight aromatics.

Use of biodegradable hydrocarbon fluids in electric vehicles

This drive system for a motor vehicle includes a top end and a bottom end that are coupled together, a kinematic drive chain, a compressor, a main lubrication system, that includes a main circuit and a main pump, which supplies at least the bottom end with a main lubricant via the main circuit, and a secondary lubrication system, that includes at least one secondary circuit separated from the main circuit and at least one secondary pump separate from the main pump, the secondary pump supplying the top end and/or the compressor with a secondary lubricant via the secondary circuit. The secondary lubrication system includes at least one secondary actuator mechanically separate from the kinematic drive chain and that drives the secondary pump to supply the top end and/or the compressor with the secondary lubricant.

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Seyssuel, France

Philippe China