Efficient thermal management of Li-ion batteries with a passive interfacial thermal regulator based on a shape memory alloy

Menglong Hao, Jian Li, Saehong Park, Scott Moura and Chris Dames ()
Additional contact information
Menglong Hao: University of California
Jian Li: University of California
Saehong Park: University of California
Scott Moura: University of California
Chris Dames: University of California

Nature Energy, 2018, vol. 3, issue 10, 899-906

Abstract: Abstract The poor performance of lithium-ion batteries in extreme temperatures is hindering their wider adoption in the energy sector. A fundamental challenge in battery thermal management systems (BTMSs) is that hot and cold environments pose opposite requirements: thermal transmission at high temperature for battery cooling, and thermal isolation at low temperature to retain the batteries’ internally generated heat, leading to an inevitable compromise of either hot or cold performances. Here, we demonstrate a thermal regulator that adjusts its thermal conductance as a function of the temperature, just as desired for the BTMS. Without any external logic control, this thermal regulator increases battery capacity by a factor of 3 at an ambient temperature (Tambient) of −20 °C in comparison to a baseline BTMS that is always thermally conducting, while also limiting the battery temperature rise to 5 °C in a very hot environment (Tambient = 45 °C) to ensure safety. The result expands the usability of lithium-ion batteries in extreme environments and opens up new applications of thermally functional devices.

Date: 2018
References: Add references at CitEc
Citations: View citations in EconPapers (13)

Downloads: (external link)
https://www.nature.com/articles/s41560-018-0243-8 Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natene:v:3:y:2018:i:10:d:10.1038_s41560-018-0243-8

Ordering information: This journal article can be ordered from
https://www.nature.com/nenergy/

DOI: 10.1038/s41560-018-0243-8

Access Statistics for this article

Nature Energy is currently edited by Fouad Khan

More articles in Nature Energy from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().