High-quality mesoporous graphene particles as high-energy and fast-charging anodes for lithium-ion batteries

Runwei Mo, Fan Li, Xinyi Tan, Pengcheng Xu, Ran Tao, Gurong Shen, Xing Lu, Fang Liu, Li Shen, Bin Xu, Qiangfeng Xiao, Xiang Wang, Chongmin Wang, Jinlai Li (), Ge Wang () and Yunfeng Lu ()
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Runwei Mo: University of California
Fan Li: University of California
Xinyi Tan: University of California
Pengcheng Xu: University of California
Ran Tao: University of California
Gurong Shen: University of California
Xing Lu: University of California
Fang Liu: University of California
Li Shen: University of California
Bin Xu: Jilin University
Qiangfeng Xiao: General Motors Research and Development Center
Xiang Wang: Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory
Chongmin Wang: Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory
Jinlai Li: ENN Group, Langfang
Ge Wang: University of Science and Technology Beijing
Yunfeng Lu: University of California

Nature Communications, 2019, vol. 10, issue 1, 1-10

Abstract: Abstract The application of graphene for electrochemical energy storage has received tremendous attention; however, challenges remain in synthesis and other aspects. Here we report the synthesis of high-quality, nitrogen-doped, mesoporous graphene particles through chemical vapor deposition with magnesium-oxide particles as the catalyst and template. Such particles possess excellent structural and electrochemical stability, electronic and ionic conductivity, enabling their use as high-performance anodes with high reversible capacity, outstanding rate performance (e.g., 1,138 mA h g−1 at 0.2 C or 440 mA h g−1 at 60 C with a mass loading of 1 mg cm−2), and excellent cycling stability (e.g., >99% capacity retention for 500 cycles at 2 C with a mass loading of 1 mg cm−2). Interestingly, thick electrodes could be fabricated with high areal capacity and current density (e.g., 6.1 mA h cm−2 at 0.9 mA cm−2), providing an intriguing class of materials for lithium-ion batteries with high energy and power performance.

Date: 2019
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DOI: 10.1038/s41467-019-09274-y

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