Hierarchical porous silicon structures with extraordinary mechanical strength as high-performance lithium-ion battery anodes

• Published in: Nature communications Vol. 11; no. 1; pp. 1474 - 9
• Main Authors: Jia, Haiping, Li, Xiaolin, Song, Junhua, Zhang, Xin, Luo, Langli, He, Yang, Li, Binsong, Cai, Yun, Hu, Shenyang, Xiao, Xingcheng, Wang, Chongmin, Rosso, Kevin M., Yi, Ran, Patel, Rajankumar, Zhang, Ji-Guang
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 19.03.2020; Nature Publishing Group; Nature Portfolio
• Subjects: 639/638; 639/638/161; 639/638/161/891; Anodes; batteries; Calendering; Carbon; Cathodes; chemistry; Electrochemical analysis; Electrochemistry; Electrode materials; Electrodes; ENERGY STORAGE; Flux density; Humanities and Social Sciences; Lithium; Lithium-ion batteries; Mechanical properties; Microspheres; multidisciplinary; Nanotubes; Porosity; Porous silicon; Rechargeable batteries; Retention; Science; Science (multidisciplinary); Silicon; Specific capacity; Strength; Structural hierarchy

Porous structured silicon has been regarded as a promising candidate to overcome pulverization of silicon-based anodes. However, poor mechanical strength of these porous particles has limited their volumetric energy density towards practical applications. Here we design and synthesize hierarchical c...