A deep supercooling eutectic phase change material for low-temperature battery thermal management

Recent advances in phase change materials for thermal energy storage

“…Some of the organic components of eutectics considered as phase change materials include paraffins, fatty acids, alcohols, esters, diols and sugar alcohols. 52 Salt hydrate eutectics cycle better and are less prone to phase separation than pure salt hydrates. 52 Metal alloy eutectics are useful for high-temperature Fig.…”

“…52 Salt hydrate eutectics cycle better and are less prone to phase separation than pure salt hydrates. 52 Metal alloy eutectics are useful for high-temperature Fig. 6 Temperatures of fusion (melting) for nine families of long-chain, unbranched organic molecular solids, as a function of chemical family and total number of carbons in the compound.…”

“…22. applications and have especially high thermal conductivity and gravimetric enthalpies of fusion. 52 Molten salt eutectics can show better chemical stability than the pure molten salts from which they are composed, 52 and have significant applications in concentrated solar power. 53 In all cases, care should be taken to use the precise composition of the eutectic (which may be a little removed from the composition derived from ideal mixture theory) to promote stable properties after many melt-freeze cycles.…”

Recent Developments of Thermal Management Strategies for Lithium‐Ion Batteries: A State‐of‐The‐Art Review

“…Then, the stored heat could be released by triggering the crystallization of PCM and warming up the battery with a temperature rise rate of 7.5 C min À1 . Similarly, Sun et al [191] further fabricated a eutectic PCM with a stable supercooling degree of about 61 C, which was expected to expand the operating temperature of PCM-heating to À20 C. Recently, inspired by the Joule heat effect, electric-conductive PCM has emerged as a potential solution for battery preheating. To achieve full-temperature thermal management, Luo et al [192] synthesized a series of PA/EG composites that possessed low-electrical resistance of 0.1-0.28 Ω mm.…”

Experimental and simulation study of REEV charging and discharging strategy considering battery temperature

“…2 The battery capacity problem of pure electric vehicles is not yet a major breakthrough, and the capacity decays too quickly at low temperatures, so there is still mileage anxiety. [3][4][5][6] However, REEV can overcome this problem, and compared to a fuel car, REEV can signicantly reduce fuel consumption. 7 In order to reduce carbon emissions, REEV is an important development route, 8 and the energy management and thermal management of the REEV both affect the fuel consumption economy and range.…”