A HYBRID THERMAL MANAGEMENT SYSTEM WITH NEGATIVE PARASITIC LOSSES FOR ELECTRIC VEHICLE BATTERY PACKS

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Abstract

Parasitic power requirement is a key criterion in selection of suitable battery thermal management system (TMS) for EV applications. This paper presents a hybrid TMS with negative parasitic requirements, designed by integrating phase change material (PCM) with thermoelectric devices. The proposed system does not require any power consumption to maintain tight control over battery cell temperature during aggressive use and repetitive cycling. In addition, it can recover a portion of waste heat produced during the typical operation of EV battery packs.
Commercially available 〖LiFePO〗_4 20 Ah pouch cell has been chosen as a test battery sample for validating the conceptual design presented herein. The commercial battery cells, submerged in a PCM-filled polycarbonate casing, are subjected to a cyclic discharge process to elucidate their heat generation characteristics at 27 °C. Charging and discharging is conducted at 0.5C and 1C, respectively. A thermoelectric circuit is used to recover the heat energy absorbed by the PCM and to convert it to electrical energy. The manuscript further details some of the major findings of this experiment.

Details

Original languageEnglish
Title of host publicationProceedings of the ASME 2018 International Mechanical Engineering Congress and Exposition
Subtitle of host publicationIMECE 2018
Publication statusPublished - 13 Nov 2018
MoE publication typeA4 Article in a conference publication
EventASME International Mechanical Engineering Congress and Exposition - Pittsburgh, United States
Duration: 9 Nov 201815 Nov 2018

Conference

ConferenceASME International Mechanical Engineering Congress and Exposition
Abbreviated titleIMECE
CountryUnited States
CityPittsburgh
Period09/11/201815/11/2018

    Research areas

  • Battery Heat Generation, Phase Change Materials, Seebeck Effect and Peltier Effect, Thermoelectric Cooler, Abuse Tolerance, Electric Vehicles

ID: 30279163