Structure engineering of cathode host materials for Li-S batteries

Jia-Jun Long ¹Hua Yu ²Wen-Bo Liu³

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作者信息

1. School of New Energy and Materials,Southwest Petroleum University,Chengdu 610500,China;School of Mechanical Engineering,Sichuan University,Chengdu 610065,China
2. School of New Energy and Materials,Southwest Petroleum University,Chengdu 610500,China
3. School of Mechanical Engineering,Sichuan University,Chengdu 610065,China
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Abstract

Although lithium-sulfur batteries are one of the favorable candidates for next-generation energy storage devices,a few key challenges that have not been addressed have limited its commercialization.These challenges include lithium dendrite growth in the anode side,volume change of the active material,poor electrical conductivity,dissolution and migration of polysulfides,and slow rate of solid-state reactions in the cathode side.Since the elec-trochemical performance of lithium-sulfur batteries is greatly affected by the design of the cathode host material,it has also been widely discussed in addressing the above-mentioned issues.In this paper,three design ideas of cathode host materials in terms of microstructure,crystal structure and electronic structure are introduced and sum-marized.Crucially,the current progress of these three structural design strategies and their effects on the elec-trochemical performance of lithium-sulfur batteries are discussed in detail.Finally,future directions in the struc-tural design of cathode materials for lithium-sulfur bat-teries are discussed and further perspectives are provided.

Key words

Lithium-sulfur batteries/Structure engineering/Cathode/Host materials

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基金项目

National Natural Science Foundation of China(52075351)

National Natural Science Foundation of China(51604177)

National Key Research and Development Program of China(2019YFA0705701)

Major S&T Infrastructure Construction Project of Sichuan Province(2020-510000-73-01-441847)

International S&T Innovation Cooperation Program of Sichuan Province(2020YFH0039)

Chengdu International S&T Cooperation Funded Project(2020-GH02-00006-HZ)

Chengdu International S&T Cooperation Funded Project(2022-GH02-00027-HZ)

the"1000 Talents Plan"of Sichuan Province()

Talent Introduction Program of Sichuan University(YJ201410)

出版年

2024

稀有金属(英文版)

中国有色金属学会

稀有金属(英文版)

CSTPCDCSCDEI

影响因子：0.801

ISSN：1001-0521

参考文献量120

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