Patent ID: 8338012

Claim:
A method of thermal management for an electric battery comprising a plurality of elements generating electric energy, said method providing for using a thermal conditioning system comprising a chamber containing a fluid of thermal exchange with said elements, said system further comprising a circulating device of said fluid in said chamber and at least one thermal conditioning device of said fluid, said method providing for, during the recharging of the battery from an external power source, preconditioning said battery at an average temperature T 0 and, during use of said battery, for determining: the difference ΔT 1 between the temperatures of the hottest element and of the coldest element; the absolute ΔT 2 of the difference between the temperature T 0 and the average temperature T of said battery; said method providing for: when the difference ΔT 1 is less than a first setpoint C 1 , deactivating the circulation device as well as the thermal conditioning device or devices; when the difference ΔT 1 is greater than a first setpoint C 1 or the difference ΔT 2 is greater than a second setpoint C 2 , activating the circulation device of the fluid by: maintaining the thermal conditioning device or devices deactivated if the difference ΔT 2 is less than the second setpoint C 2 ; activating at least one thermal conditioning device if the difference ΔT 2 is greater than the second setpoint C 2 .