Understanding and applying coulombic efficiency in lithium metal batteries
Jie Xiao (),
Qiuyan Li,
Yujing Bi,
Mei Cai,
Bruce Dunn,
Tobias Glossmann,
Jun Liu,
Tetsuya Osaka,
Ryuta Sugiura,
Bingbin Wu,
Jihui Yang,
Ji-Guang Zhang and
M. Stanley Whittingham
Additional contact information
Jie Xiao: Pacific Northwest National Laboratory
Qiuyan Li: Pacific Northwest National Laboratory
Yujing Bi: Pacific Northwest National Laboratory
Mei Cai: General Motors R&D Center
Bruce Dunn: University of California
Tobias Glossmann: Mercedes-Benz Research and Development North America
Jun Liu: Pacific Northwest National Laboratory
Tetsuya Osaka: Waseda University
Ryuta Sugiura: Toyota Motor North America
Bingbin Wu: Pacific Northwest National Laboratory
Jihui Yang: University of Washington
Ji-Guang Zhang: Pacific Northwest National Laboratory
M. Stanley Whittingham: Binghamton University
Nature Energy, 2020, vol. 5, issue 8, 561-568
Abstract:
Abstract Coulombic efficiency (CE) has been widely used in battery research as a quantifiable indicator for the reversibility of batteries. While CE helps to predict the lifespan of a lithium-ion battery, the prediction is not necessarily accurate in a rechargeable lithium metal battery. Here, we discuss the fundamental definition of CE and unravel its true meaning in lithium-ion batteries and a few representative configurations of lithium metal batteries. Through examining the similarities and differences of CE in lithium-ion batteries and lithium metal batteries, we establish a CE measuring protocol with the aim of developing high-energy long-lasting practical lithium metal batteries. The understanding of CE and the CE protocol are broadly applicable in other rechargeable metal batteries including Zn, Mg and Na batteries.
Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natene:v:5:y:2020:i:8:d:10.1038_s41560-020-0648-z
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DOI: 10.1038/s41560-020-0648-z
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