DataVXAdvanced MaterialsPaper
journal article·2022-09

Single‐Layer‐Particle Electrode Design for Practical Fast‐Charging Lithium‐Ion Batteries

Shuibin Tu, Ziheng Lu, Mengting Zheng, Zihe Chen, Xiancheng Wang, Zhao Cai, Chaoji Chen, Li Wang, Chenhui Li, Zhi Wei Seh, Shanqing Zhang, Jun Lu, Yongming Sun

Advanced Materials· Volume 34· Issue 39
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Source abstract

Abstract

Abstract Efforts to enable fast charging and high energy density lithium‐ion batteries (LIBs) are hampered by the trade‐off nature of the traditional electrode design: increasing the areal capacity usually comes with sacrificing the fast charge transfer. Here a single‐layer chunky particle electrode design is reported, where red‐phosphorus active material is embedded in nanochannels of vertically aligned graphene (red‐P/VAG) assemblies. Such an electrode design addresses the sluggish charge transfer stemming from the high tortuosity and inner particle/electrode resistance of traditional electrode architectures consisting of randomly stacked active particles. The vertical ion‐transport nanochannels and electron‐transfer conductive nanowalls of graphene confine the direction of charge transfer to minimize the transfer distance, and the incomplete filling of nanochannels in the red‐P/VAG composite buffers volume change locally, thus avoiding the variation of electrodes thickness during cycling. The single‐layer chunky particle electrode displays a high areal capacity (5.6 mAh cm−2), which is the highest among the reported fast‐charging battery chemistries. Paired with a high‐loading LiNi0.6Co0.2Mn0.2O2 (NCM622) cathode, a pouch cell shows stable cycling with high energy and power densities. Such a single‐layer chunky particle electrode design can be extended to other advanced battery systems and boost the development of LIBs with fast‐charging capability and high energy density.
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Research context

Energy storageNanomaterialsComposites

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Advanced Battery Technologies Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Wuhan National Laboratory for Optoelectrons and School of Optical and Electron Information Huazhong University of Science and Technology Wuhan 430074 P. R. China

Department of Materials Science and Engineering Huazhong University of Science and Technology Wuhan 430074 P. R. China

Department of Materials Science and Metallurgy University of Cambridge Cambridge CB3 0FS UK

Centre for Clean Environment and Energy School of Environment and Science Gold Coast 11 Campus Griffith University Gold Coast 4222 Australia

Hubei Key Laboratory of Biomass Resource Chemistry and Environmental Biotechnology Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy Hubei Engineering Center of Natural Polymers‐Based Medical Materials School of Resource and Environmental Science Wuhan University Wuhan 430079 P. R. China

Institute of Nuclear & New Energy Technology Tsinghua University Beijing 100084 P. R. China

Institute of Materials Research and Engineering Agency for Science Technology and Research (A*STAR) 2 Fusionopolis Way, Innovis Singapore 138634 Singapore

Chemical Sciences and Engineering Division Argonne National Laboratory Lemont IL 60439 USA

College of Chemical and Biological Engineering Zhejiang University Hangzhou 310027 China

Funding

National Natural Science Foundation of China · National Research Foundation Singapore

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