TY - JOUR
T1 - A Lamellar Yolk–Shell Lithium-Sulfur Battery Cathode Displaying Ultralong Cycling Life, High Rate Performance, and Temperature Tolerance
AU - Liu, Jinyun
AU - Ding, Yingyi
AU - Shen, Zihan
AU - Zhang, Huigang
AU - Han, Tianli
AU - Guan, Yong
AU - Tian, Yangchao
AU - Braun, Paul V.
N1 - Funding Information:
J.L. and Y.D. contributed equally to this work. This work was supported by the National Key Research and Development Program of China (2017YFA0402904, 2020YFA0406104), Science and Technology Major Project of Anhui Province (18030901093), Key Research and Development Program of Wuhu (2019YF07), National Natural Science Foundation of China (22075131, 11775224, and U2032148), University Synergy Innovation Program of Anhui Province (GXXT-2020-073). The authors also thank the National Synchrotron Radiation Lab for the synchrotron beam time at the University of Science and Technology of China.
Funding Information:
J.L. and Y.D. contributed equally to this work. This work was supported by the National Key Research and Development Program of China (2017YFA0402904, 2020YFA0406104), Science and Technology Major Project of Anhui Province (18030901093), Key Research and Development Program of Wuhu (2019YF07), National Natural Science Foundation of China (22075131, 11775224, and U2032148), University Synergy Innovation Program of Anhui Province (GXXT‐2020‐073). The authors also thank the National Synchrotron Radiation Lab for the synchrotron beam time at the University of Science and Technology of China.
Publisher Copyright:
© 2021 The Authors. Advanced Science published by Wiley-VCH GmbH
PY - 2022/1/25
Y1 - 2022/1/25
N2 - The shuttling behavior and slow conversion kinetics of the intermediate lithium polysulfides are the severe obstacles for the application of lithium-sulfur (Li-S) batteries over a wide temperature range. Here, an engineered lamellar yolk–shell structure of In2O3@void@carbon for the Li-S battery cathode is developed for the first time to construct a powerful barrier that effectively inhibits the shuttling of polysulfides. On the basis of the unique nanochannel-containing morphology, the continuous kinetic transformation of sulfur and polysulfides is confined in a stable framework, which is demonstrated by using X-ray nanotomography. The constructed Li-S battery exhibits a high cycling capability over 1000 cycles at 1.0 C with a capacity decay rate as low as 0.038% per cycle, good rate performance, and temperature tolerance at −10, 25, and 50 °C. A nondestructive in situ monitoring method of the interfacial reaction resistance in different cycling stages is proposed, which provides a new analysis perspective for the development of emerging electrochemical energy-storage systems.
AB - The shuttling behavior and slow conversion kinetics of the intermediate lithium polysulfides are the severe obstacles for the application of lithium-sulfur (Li-S) batteries over a wide temperature range. Here, an engineered lamellar yolk–shell structure of In2O3@void@carbon for the Li-S battery cathode is developed for the first time to construct a powerful barrier that effectively inhibits the shuttling of polysulfides. On the basis of the unique nanochannel-containing morphology, the continuous kinetic transformation of sulfur and polysulfides is confined in a stable framework, which is demonstrated by using X-ray nanotomography. The constructed Li-S battery exhibits a high cycling capability over 1000 cycles at 1.0 C with a capacity decay rate as low as 0.038% per cycle, good rate performance, and temperature tolerance at −10, 25, and 50 °C. A nondestructive in situ monitoring method of the interfacial reaction resistance in different cycling stages is proposed, which provides a new analysis perspective for the development of emerging electrochemical energy-storage systems.
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U2 - 10.1002/advs.202103517
DO - 10.1002/advs.202103517
M3 - Article
C2 - 34845856
AN - SCOPUS:85120161863
SN - 2198-3844
VL - 9
JO - Advanced Science
JF - Advanced Science
IS - 3
M1 - 2103517
ER -