Plasma milling modified Sb2S3-graphite nanocomposite as a highly reversible alloying-conversion anode material for lithium storage

作者:Liu, YX (Liu, Yuxuan)^[1 ]; Lu, ZC (Lu, Zhongchen)^[2 ]; Cui, J (Cui, Jie)^[3 ]; Liu, H (Liu, Hui)^[4 ]; Liu, J (Liu, Jun)^[1 ]; Hu, RZ (Hu, Renzong)^[1 ]; Zhu, M (Zhu, Min)^[1 ]

Poor reversibility of conversion and alloying reactions for Sb2S3 limits its application as high capacity anode for rechargeable lithium storage. Herein a facile high-efficiency plasma assisted milling (P-milling) was used to create Sb2S3-C hybrid nanostructure with disk-like Sb2S3 nanograins wrapped within ultrathin graphite nanosheets. Benefiting from the high structure stability and excellent Li+ ion diffusion kinetics in the graphite wrapped Sb2S3 nanostructure, highly reversible conversion and alloying reactions are maintained throughout the long-term cycles. The Sb2S3-C nanocomposite anode demonstrates a high stable capacity of 638.2 mA h g(-1) after 250 cycles at 200 mA g(-1) between 0.01 and 3.0 V vs. Li/Li+, with a high initial Coulombic efficiency of 78.3%. A reversible capacity of 496.1 mA h g(-1) is obtained after 500 cycles even at higher current rate of 1 A g(-1), much superior to those of the unmilled Sb2S3-C and P-milled Sb2S3 anodes. These demonstrate that P-milling could be a promising strategy to create high performance metal chalcogenide anode materials involved both conversion and alloying reactions toward lithium storage. (C) 2019 Elsevier Ltd. All rights reserved.

作者关键词:Antimony sulfide; Plasma milling; Conversion reactions; Reversibility

KeyWords Plus:CYCLIC DURABLE ANODES; HIGH-CAPACITY ANODE; ELECTROCHEMICAL PERFORMANCE; GRAPHENE NANOSHEETS; ELECTRODE MATERIALS; SB2S3 NANORODS; ION BATTERIES; LONG-LIFE; COMPOSITE; SILICON

通讯作者地址:Hu, RZ (通讯作者)

South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510640, Peoples R China.   增强组织信息的名称     South China University of Technology

South China Univ Technol, Sch Mech & Automot Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510640, Peoples R China.   增强组织信息的名称     South China University of Technology

地址:

	[ 1 ] South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510640, Peoples R China   增强组织信息的名称     South China University of Technology
	[ 2 ] South China Univ Technol, Sch Mech & Automot Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510640, Peoples R China   增强组织信息的名称     South China University of Technology
	[ 3 ] South China Univ Technol, Anal & Test Ctr, Guangzhou 510640, Peoples R China   增强组织信息的名称     South China University of Technology
	[ 4 ] Hunan Agr Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China   增强组织信息的名称     Hunan Agricultural University

电子邮件地址:meczlu@scut.edu.cn; msrenzonghu@scut.edu.cn

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