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In-situ synthesis of graphene nanosheets encapsulated silicon nanospheres by thermal plasma for ultra-stable lithium storage

文献类型：期刊论文

作者Yang, Zongxian2,3; Liu, Chang2,3; Liu, Xiang2,3; Du, Yu4; Jin, Huacheng2; Ding, Fei2; Li, Baoqiang2; Ouyang, Yuge5; Bai, Liuyang1; Yuan, Fangli2,6
刊名CARBON
出版日期2022-10-31
卷号199页码:424-430
ISSN号0008-6223
关键词Lithium -ion batteries Silicon anode RF-Plasma Graphene nanosheets In -situ synthesis
DOI10.1016/j.carbon.2022.08.039
英文摘要Owing to its high capacity, silicon (Si) is a promising anode for meeting the escalating need for batteries with high energy density. Nonetheless, the substantial volumetric variation generated by lithiation/delithiation often results in the pulverization of Si, which substantially lowers its cycle stability. Graphene/graphene nanosheets (GNSs) with higher electrical conductivity and mechanical strength are anticipated to overcome these obstacles when employed as the coating matrix of silicon. Unfortunately, the majority of Si@graphene composites are not manufactured in situ, so that graphene is hardly to entirely encapsulate Si.The low-quality coating leads to the exposure of Si after cycles, resulting in a short cycle life. Herein, graphene nanosheets encapsulated silicon nanospheres (Si@GNSs) are synthesized in situ using a radio-frequency (RF) thermal plasma system, in which graphene and Si have strong interfacial chemical interactions. Further, free-standing Si@GNSs/reduced graphene oxide (Si@GNSs/rGO) paper was prepared using graphene oxide (GO) as a special "binder'. When Si@GNSs/rGO paper is directly used as anode electrodes, it demonstrates a high reversible capacity (2270 mAh g(-1) at 0.2 A g(-1)), outstanding rate performance (1569 mAh g(-1) at 5.0 A g(-1)) and ultra-stable cycle performance (capacity retention of 98.55% for 2000 cycles at 3.0 A g(-1)).
WOS关键词ANODE MATERIALS ; FACILE SYNTHESIS ; ION ; COMPOSITE ; CARBON ; LI ; FABRICATION ; SHEETS ; GROWTH ; LAYERS
资助项目"Key Program for International S&T Cooperation Projects of China" from the Ministry of Science and Technology of China[2019YFE0123000] ; National Natural Science Foundation of China (NSFC)[21878312] ; Beijing Municipal Natural Science Foundation (BNSF)[2184126] ; Fund of State Key Laboratory of Multi-phase Complex Systems[MPCS-2019-A-11]
WOS研究方向Chemistry ; Materials Science
语种英语
出版者PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号WOS:000843863100002
资助机构"Key Program for International S&T Cooperation Projects of China" from the Ministry of Science and Technology of China ; National Natural Science Foundation of China (NSFC) ; Beijing Municipal Natural Science Foundation (BNSF) ; Fund of State Key Laboratory of Multi-phase Complex Systems
源URL[http://ir.ipe.ac.cn/handle/122111/54601]  
专题中国科学院过程工程研究所
通讯作者Yuan, Fangli
作者单位1.Huanghuai Univ, Ind Innovat & Res & Dev Inst Zhumadian, Zhumadian 463000, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci UCAS, Beijing 100049, Peoples R China
4.SINOPEC Res Inst Safety Engn Co Ltd, State Key Lab Safety & Control Chem, Qingdao 266000, Peoples R China
5.Beijing Technol & Business Univ, Coll Chem & Mat Engn, Beijing 100048, Peoples R China
6.Univ Chinese Acad Sci UCAS, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Zongxian,Liu, Chang,Liu, Xiang,et al. In-situ synthesis of graphene nanosheets encapsulated silicon nanospheres by thermal plasma for ultra-stable lithium storage[J]. CARBON,2022,199:424-430.
APA Yang, Zongxian.,Liu, Chang.,Liu, Xiang.,Du, Yu.,Jin, Huacheng.,...&Yuan, Fangli.(2022).In-situ synthesis of graphene nanosheets encapsulated silicon nanospheres by thermal plasma for ultra-stable lithium storage.CARBON,199,424-430.
MLA Yang, Zongxian,et al."In-situ synthesis of graphene nanosheets encapsulated silicon nanospheres by thermal plasma for ultra-stable lithium storage".CARBON 199(2022):424-430.

入库方式： OAI收割

来源：过程工程研究所

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