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The heating triangle: A quantitative review of self-heating methods for lithium-ion batteries at low temperatures

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Title: The heating triangle: A quantitative review of self-heating methods for lithium-ion batteries at low temperatures
Authors: Ruan, H
Barreras, JV
Steinhardt, M
Jossen, A
Offer, GJ
Wu, B
Item Type: Journal Article
Abstract: Lithium-ion batteries at low temperatures have slow recharge times alongside reduced available power and energy. Battery heating is a viable way to address this issue, and self-heating techniques are appealing due to acceptable efficiency and speed. However, there are a lack of studies quantitatively comparing self-heating methods rather than qualitatively, because of the existence of many different batteries with varied heating parameters. In this work, we review the current state-of-the-art self-heating methods and propose the heating triangle as a new quantitative indicator for comparing self-heating methods, towards identifying/developing effective heating approaches. We define the heating triangle which considers three fundamental metrics: the specific heating rate (°C·g·J−1), coefficient of performance (COP) (−), and specific temperature difference (°C·hr), enabling a quantitative assessment of self-heating methods using data reported in the literature. Our analysis demonstrates that very similar metrics are observed for the same type of self-heating method, irrespective of the study case, supporting the universality of the proposed indicator. With the comparison insights, we identify research gaps and new avenues for developing advanced self-heating methods. This work demonstrates the value of the proposed heating triangle as a standardised approach to compare heating methods and drive innovation.
Issue Date: Oct-2023
Date of Acceptance: 3-Aug-2023
URI: http://hdl.handle.net/10044/1/106187
DOI: 10.1016/j.jpowsour.2023.233484
ISSN: 0378-7753
Publisher: Elsevier BV
Start Page: 1
End Page: 16
Journal / Book Title: Journal of Power Sources
Volume: 581
Copyright Statement: © 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Publication Status: Published
Article Number: 233484
Online Publication Date: 2023-08-22
Appears in Collections:Dyson School of Design Engineering

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