Journal
CHEM
Volume 6, Issue 10, Pages 2533-2557Publisher
CELL PRESS
DOI: 10.1016/j.chempr.2020.06.032
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Funding
- National Natural Science Foundation of China (NSFC) [U1805254, 21673196, 21703186, U1705255, 21773192, 21975211]
- Fundamental Research Funds for the Central Universities [20720190035]
- Nanqiang Young Top-notch Talent Fellowship from Xiamen University
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Li-S batteries have long been at the pinnacle in the realm of high-energy Li-metal batteries. Although valuable progress has been made in the last few years, there is not yet any report with stable theoretical capacity output due to the complexity of electrode conversion reactions during battery operation, which is the intrinsic bottleneck to realize the full potential of Li-S batteries for practical application In this Review, we take a mechanism-oriented view into Li-S batteries. The principles, strategies, and in-operando characterization techniques to understand the effects of Li2Sn in sulfur cathode and Li anode are summarized to elucidate the surface electrochemical and chemical reactions on electrodes. New insights are also prospected to design Li-S batteries and to satisfy the high expectation in the future, including the requirement to design advanced sulfur cathode and Li anode, various Li-S battery construction strategies, and novel characterization ways to investigate single electrode and whole cell.
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