Self-Supported Graphene Nanosheet-Based Composites as Binder-Free Electrodes for Advanced Electrochemical Energy Conversion and Storage

Bowen Ren; Hao Cui; Chengxin Wang

doi:10.1007/s41918-022-00138-6

Electrochemical Energy Reviews ›› 2022, Vol. 5 ›› Issue (Suppl 2) DOI: 10.1007/s41918-022-00138-6

Review Article

Self-Supported Graphene Nanosheet-Based Composites as Binder-Free Electrodes for Advanced Electrochemical Energy Conversion and Storage

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¹State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, The Key Laboratory of Low-Carbon Chemistry and Energy Conservation of Guangdong Province, Sun Yat-sen University, 510275, Guangzhou, Guangdong, China

^b cuihao3@mail.sysu.edu.cn

^c wchengx@mail.sysu.edu.cn

Bowen Ren

received his B.S. degree in Physics, and Ph.D. degree in Materials Physics and Chemistry from Sun Yat-sen University (Guangzhou) in 2016 and 2021, respectively. His research focuses on the design and synthesis of functional materials and devices for new energy conversion and storage, including electro-catalytic water splitting and supercapacitors.

Hao Cui

received his B.S. degree in Material Science and Engineering from Tongji University (Shanghai) in 2004, and Ph.D. degree (a Master–Doctor combined program) in Materials Physics and Chemistry from Sun Yat-Sen University (Guangzhou) in 2009. Now, Dr. Cui is an associate professor in the School of Physics Science and Engineering, Sun Yat-sen University, China. His current research is mainly focused on the design and synthesis of nanomaterials for energy related applications including photocatalysis and electrocatalysis.

Chengxin Wang

is currently a professor in the School of Physics Science and Engineering, Sun Yat-sen University. He received his BSc, MSc and PhD degrees from Jilin University in 1992, 1999 and 2002, respectively. From 2003 to 2005, he conducted postdoctoral research in the School of Physics and Engineering, Sun Yat-sen University. Subsequently, he was awarded a JSPS fellowship by the Japan Society for the Promotion of Science (JSPS) in 2005. In 2007, he came back to work in China. He was granted the second prize of National Natural Science Award in 2011. Dr. Wang’s research interest lies in developing both theory and experiment investigation on the nanomaterials of IV main group elements and related compounds. His current research focuses on nano-energy materials.

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Abstract

Graphene is composed of single-layered sp² graphite and has been widely used in electrochemical energy conversion and storage due to its appealing physical and chemical properties. In recent years, a new kind of the self-supported graphene nanosheet-based composite (GNBC) has attracted significant attention. Compared with conventional powdered materials, a binder-free electrode architecture has several strengths, including a large surface area, enhanced reaction kinetics, and great structural stability, and these strengths allow users to realize the full potential of graphene. Based on these findings, this review presents preparation strategies and properties of self-supported GNBCs. Additionally, it highlights recent significant developments with integrated binder-free electrodes for several practical applications, such as lithium-ion batteries, lithium-metal batteries, supercapacitors, water splitting and metal-air batteries. In addition, the remaining challenges and future perspectives in this emerging field are also discussed.

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Bowen Ren, Hao Cui, Chengxin Wang. Self-Supported Graphene Nanosheet-Based Composites as Binder-Free Electrodes for Advanced Electrochemical Energy Conversion and Storage. Electrochemical Energy Reviews, 2022, 5(Suppl 2): DOI:10.1007/s41918-022-00138-6