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.
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.
Original language | English |
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Title of host publication | Proceedings of the ASME 2018 International Mechanical Engineering Congress and Exposition |
Subtitle of host publication | IMECE 2018 |
Place of Publication | ASME Digital Collection |
Publisher | American Society of Mechanical Engineers |
Number of pages | 6 |
ISBN (Electronic) | 978-0-7918-5207-1 |
DOIs | |
Publication status | Published - 13 Nov 2018 |
MoE publication type | A4 Conference publication |
Event | ASME International Mechanical Engineering Congress and Exposition - Pittsburgh, United States Duration: 9 Nov 2018 → 15 Nov 2018 |
Conference
Conference | ASME International Mechanical Engineering Congress and Exposition |
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Abbreviated title | IMECE |
Country/Territory | United States |
City | Pittsburgh |
Period | 09/11/2018 → 15/11/2018 |
Keywords
- Battery Heat Generation
- Phase Change Materials
- Seebeck Effect and Peltier Effect
- Thermoelectric Cooler
- Abuse Tolerance
- Electric Vehicles