Boosting the kinetics of PF6- into graphitic layers for the optimal cathode of dual-ion batteries: the rehearsal of pre-intercalating Li+

doi:10.1016/j.jechem.2022.04.009

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	Boosting the kinetics of PF6- into graphitic layers for the optimal cathode of dual-ion batteries: the rehearsal of pre-intercalating Li+
	H. Yang; T. T. Qin; X. Y. Zhou; Y. Feng; Z. Z. Wang; X. Ge; N. L. Yue; D. B. Li; W. Zhang and W. T. Zheng
	2022
发表期刊	Journal of Energy Chemistry
ISSN	2095-4956
卷号	71 页码:392-399
摘要	Large anions exhibit slow diffusion kinetics in graphite cathode of dual-ion batteries (DIBs); particularly at high current density, it suffers severely from the largely-reduced interlayer utilization of graphite cathode, which as a bottleneck limits the fast charge application of DIBs. To maximize interlayer utilization and achieve faster anion diffusion kinetics, a fast and uncrowded anion transport channel must be established. Herein, Li+ was pre-intercalated into the graphite paper (GP) cathode to increase the interlayer spacing, and then hosted for the PF-6 anion storage. Combined with theoretical calculation, it shows that the local interlayer spacing enlargement and the residual Li334659365_20220507122404649 / urn:si:7735412 reduce the anion intercalation energy and diffusion barrier, leading to better rate stability. The obtained GP with Li+ pre-intercalation (GP-Li) electrode exhibits a discharge capacity of 23.1 mAh g(-1) at a high current of 1300 mA g(-1) This work provides a facile method to efficiently improve the interlayer utilization of graphite cathode at large currents. (C) The Author(s). Published by Elsevier B.V. on behalf of King Saud University. All rights reserved.
DOI	10.1016/j.jechem.2022.04.009
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收录类别	sci ; ei
语种	英语
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67250
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	H. Yang,T. T. Qin,X. Y. Zhou,et al. Boosting the kinetics of PF6- into graphitic layers for the optimal cathode of dual-ion batteries: the rehearsal of pre-intercalating Li+[J]. Journal of Energy Chemistry,2022,71:392-399.
APA	H. Yang.,T. T. Qin.,X. Y. Zhou.,Y. Feng.,Z. Z. Wang.,...&W. Zhang and W. T. Zheng.(2022).Boosting the kinetics of PF6- into graphitic layers for the optimal cathode of dual-ion batteries: the rehearsal of pre-intercalating Li+.Journal of Energy Chemistry,71,392-399.
MLA	H. Yang,et al."Boosting the kinetics of PF6- into graphitic layers for the optimal cathode of dual-ion batteries: the rehearsal of pre-intercalating Li+".Journal of Energy Chemistry 71(2022):392-399.

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