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Multiscale Buffering Engineering in Silicon-Carbon Anode for Ultrastable Li-Ion Storage

文献类型：期刊论文

作者Hou, Guolin4; Cheng, Benli4; Yang, Yijun5; Du, Yu4,6; Zhang, Yihui5; Li, Baoqiang4; He, Jiaping4; Zhou, Yunzhan5,7; Yi, Ding5; Zhao, Nana5
刊名ACS NANO
出版日期2019-09-01
卷号13期号:9页码:10179-10190
ISSN号1936-0851
关键词multiscale buffering engineering silicon anode in situ TEM ultrastable Li-ion storage Li-ion batteries
DOI10.1021/acsnano.9b03355
英文摘要Silicon-carbon (Si-C) hybrids have been proven to be the most promising anodes for the next-generation lithium-ion batteries (LIBs) due to their superior theoretical capacity (similar to 4200 mAh g(-1)). However, it is still a critical challenge to apply this material for commercial LIB anodes because of the large volume expansion of Si, unstable solid-state interphase (SEI) layers, and huge internal stresses upon lithiation/delithiation. Here, we propose an engineering concept of multiscale buffering, taking advantage of a nanosized Si-C nanowire architecture through fabricating specific microsized wool-ball frameworks to solve all the above-mentioned problems. These wool-ball-like frameworks, prepared at high yields, nearly matching industrial scales (they can be routinely produced at a rate of similar to 300 g/h), are composed of Si/C nanowire building blocks. As anodes, the Si-C wool-ball frameworks show ultrastable Li (+) storage (2000 mAh g(-1) for 1000 cycles), high initial Coulombic efficiency of similar to 90%, and volumetric capacity of 1338 mAh cm(-3). In situ TEM proves that the multiscale buffering design enables a small volume variation, only similar to 19.5%, reduces the inner stresses, and creates a very thin SEI. The perfect multiscale elastic buffering makes this material more stable compared to common Si nanoparticle-assembled counterpart electrodes.
WOS关键词GRAPHENE OXIDE ; HIGH-ENERGY ; LITHIUM ; LITHIATION ; NETWORK ; DESIGN
资助项目National Natural Science Foundation of China (NSFC)[21805282] ; National Natural Science Foundation of China (NSFC)[11535003] ; National Natural Science Foundation of China (NSFC)[21878312] ; National Natural Science Foundation of China (NSFC)[51802013] ; Beijing Natural Science Foundation (BNSF)[2184126] ; Australian Research Council (ARC)[FL160100089] ; QUT Project[322170-0355/51]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science
语种英语
出版者AMER CHEMICAL SOC
WOS记录号WOS:000487859600038
资助机构National Natural Science Foundation of China (NSFC) ; Beijing Natural Science Foundation (BNSF) ; Australian Research Council (ARC) ; QUT Project
源URL[http://ir.ipe.ac.cn/handle/122111/30993]  
专题中国科学院过程工程研究所
通讯作者Wang, Xi; Yuan, Fangli
作者单位1.QUT, Sci & Engn Fac, 2 George St, Brisbane, Qld 4000, Australia
2.Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China
3.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multi Phase Complex Syst, Zhongguancun Beiertiao 1 Hao, Beijing 100190, Peoples R China
5.Beijing Jiaotong Univ, Sch Sci, Minist Educ, Key Lab Luminescence & Opt Informat, Beijing 100044, Peoples R China
6.UCAS, 19A Yuquan Rd, Beijing 100049, Peoples R China
7.Chem & Chem Engn Guangdong Lab, Shantou 515031, Peoples R China
8.Tianjin Univ, Dept Chem, Tianjin Key Lab Mol Optoelect Sci, Inst Mol Plus, Tianjin 300072, Peoples R China
推荐引用方式
GB/T 7714		 Hou, Guolin,Cheng, Benli,Yang, Yijun,et al. Multiscale Buffering Engineering in Silicon-Carbon Anode for Ultrastable Li-Ion Storage[J]. ACS NANO,2019,13(9):10179-10190.
APA Hou, Guolin.,Cheng, Benli.,Yang, Yijun.,Du, Yu.,Zhang, Yihui.,...&Yuan, Fangli.(2019).Multiscale Buffering Engineering in Silicon-Carbon Anode for Ultrastable Li-Ion Storage.ACS NANO,13(9),10179-10190.
MLA Hou, Guolin,et al."Multiscale Buffering Engineering in Silicon-Carbon Anode for Ultrastable Li-Ion Storage".ACS NANO 13.9(2019):10179-10190.

入库方式： OAI收割

来源：过程工程研究所

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