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Hou G, Cheng B, Yang Y, Du Y, Zhang Y, Li B, He J, Zhou Y, Yi D, Zhao N, Bando Y, Golberg D, Yao J, Wang X, Yuan F. Multiscale Buffering Engineering in Silicon-Carbon Anode for Ultrastable Li-Ion Storage. ACS Nano 2019; 13:10179-10190. [PMID: 31424917 DOI: 10.1021/acsnano.9b03355] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
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 (∼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 ∼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 ∼90%, and volumetric capacity of 1338 mAh cm-3. In situ TEM proves that the multiscale buffering design enables a small volume variation, only ∼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.
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Affiliation(s)
- Guolin Hou
- State Key Laboratory of Multi-Phase Complex Systems, Institute of Process Engineering , Chinese Academy of Sciences (CAS) , Zhongguancun Beiertiao 1 Hao , Beijing 100190 , People's Republic of China
| | - Benli Cheng
- State Key Laboratory of Multi-Phase Complex Systems, Institute of Process Engineering , Chinese Academy of Sciences (CAS) , Zhongguancun Beiertiao 1 Hao , Beijing 100190 , People's Republic of China
| | - Yijun Yang
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, School of Science , Beijing Jiaotong University , Beijing 100044 , People's Republic of China
| | - Yu Du
- State Key Laboratory of Multi-Phase Complex Systems, Institute of Process Engineering , Chinese Academy of Sciences (CAS) , Zhongguancun Beiertiao 1 Hao , Beijing 100190 , People's Republic of China
- University of Chinese Academy of Sciences (UCAS) , No. 19A Yuquan Road , Beijing 100049 , People's Republic of China
| | - Yihui Zhang
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, School of Science , Beijing Jiaotong University , Beijing 100044 , People's Republic of China
| | - Baoqiang Li
- State Key Laboratory of Multi-Phase Complex Systems, Institute of Process Engineering , Chinese Academy of Sciences (CAS) , Zhongguancun Beiertiao 1 Hao , Beijing 100190 , People's Republic of China
| | - Jiaping He
- State Key Laboratory of Multi-Phase Complex Systems, Institute of Process Engineering , Chinese Academy of Sciences (CAS) , Zhongguancun Beiertiao 1 Hao , Beijing 100190 , People's Republic of China
| | - Yunzhan Zhou
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, School of Science , Beijing Jiaotong University , Beijing 100044 , People's Republic of China
- Chemistry and Chemical Engineering Guangdong Laboratory , Shantou 515031 , People's Republic of China
| | - Ding Yi
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, School of Science , Beijing Jiaotong University , Beijing 100044 , People's Republic of China
| | - Nana Zhao
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, School of Science , Beijing Jiaotong University , Beijing 100044 , People's Republic of China
| | - Yoshio Bando
- Institute of Molecular Plus, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry , Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072 , People's Republic of China
| | - Dmitri Golberg
- Science and Engineering Faculty , Queensland University of Technology (QUT) , 2 George Street , Brisbane , QLD 4000 , Australia
| | - Jiannian Yao
- Chemistry and Chemical Engineering Guangdong Laboratory , Shantou 515031 , People's Republic of China
- Institute of Molecular Plus, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry , Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072 , People's Republic of China
| | - Xi Wang
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, School of Science , Beijing Jiaotong University , Beijing 100044 , People's Republic of China
| | - Fangli Yuan
- State Key Laboratory of Multi-Phase Complex Systems, Institute of Process Engineering , Chinese Academy of Sciences (CAS) , Zhongguancun Beiertiao 1 Hao , Beijing 100190 , People's Republic of China
- Center of Materials Science and Optoelectronics Engineering , University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
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