Quanchao Zhuang

China University of Mining and Technology

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Zhicheng Ju

China University of Mining and Technology

Yongli Cui

China University of Mining and Technology

Yueli Shi

China University of Mining and Technology

Yaxin Chen

China University of Mining and Technology

Shi‐Gang Sun

Xiamen University

Jiangmin Jiang

China University of Mining and Technology

Yanhua Cui

China Academy of Engineering Physics

Leilei Tian

Sichuan University

Xiangyun Qiu

Qingdao University

Yinghuai Qiang

China University of Mining and Technology

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China University of Mining and Technology

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Chinese Academy of Sciences

Xuzhou University of Technology

Xiamen University

Peking University

Tsinghua University

Shandong University

University of Science and Technology of China

Xi'an Jiaotong University

Beijing University of Chemical Technology

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Three-dimensional Tremella-like FeS/C structure under pseudocapacitance as anode for high-performance sodium-ion batteries

Materials Letters (2021)

Huimin Xu Yongli Cui Jian Wang Yueli Shi Zhicheng Ju

Pseudocapacitance

10.1016/j.matlet.2021.129727

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δ‐MnO₂/KMnF₃ Composite with Mixed Valence as Cathode for Potassium Ion Battery

Advanced Materials Interfaces (2019)

Shuya Wang Yongli Cui Bin Cui Quanchao Zhuang Bo Li

Abstract Potassium ion batteries (PIBs) are regarded as potentially promising large‐scale energy storage systems. δ‐MnO 2 /KMnF 3 ‐30 (mass percentage of KMnF 3 : 30%) with mixed valence of manganese is constructed by homogeneous precipitation method, as cathode for PIBs. As a buffer and chelating agent for the reaction, disodium ethylenediamine tetraacetate (EDTA‐2Na) is helpful to form composites with good mixing and uniform dispersion. δ‐MnO 2 nanowires with different lengths can fully utilize the cross‐linking of long nanowires and short‐range filling of short nanowires, resulting in more stable network connectivity. Additionally, the uniform embedding of the KMnF 3 nanoparticles among δ‐MnO 2 nanowires can effectively accommodate the volume expansion associated with ion intercalation during cycling process. δ‐MnO 2 /KMnF 3 combines the advantages of Mn‐based fluoride and Mn‐based oxide as cathode materials, and has high capacity, good cycle performance and rate performance. The capacity at a current density of 100 mA g −1 after 200 cycles can still be as high as 90 mAh g −1 . Electrochemical impedance spectroscopy is used to study the reaction process of the δ‐MnO 2 /KMnF 3 cathode at the electrode/electrolyte interface and to explain some electrochemical phenomena.

10.1002/admi.201901362

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Citations (17)

Superior potassium storage in natural O/N–doped hard carbon derived from maple leaves

Journal of Materials Science Materials in Electronics (2019)

Minqing Liu Jing Dong Yueli Shi Quanchao Zhuang

Carbon fibers

10.1007/s10854-019-01219-x

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Highly Dispersed ZnSe Nanoparticles Embedded in N‐Doped Porous Carbon Matrix as an Anode for Potassium Ion Batteries

Particle & Particle Systems Characterization (2019)

Yi Hu Tiantian Lu Ya Zhang Yongwen Sun Jinlong Liu

Abstract Advanced nanostructured functional materials obtained from the precursors of metal–organic frameworks show several unique advantages, including plentiful porous structures and large specific surface areas. Based on this, designed and constructed are highly dispersed ZnSe nanoparticles anchored in a N‐doped porous carbon rhombic dodecahedron (ZnSe@NDPC) by a sequential high‐temperature pyrolysis and selenization method. The specific synthesis process involves a two‐step heat treatment of the template‐engaged reaction between zinc‐based zeolitic imidazolate framework (ZIF‐8) and selenium power. By optimizing the calcination temperature, the as‐synthesized ZnSe@NDPC‐700 as an advanced anode of potassium ion batteries demonstrates the best electrochemical performance, including a high capacity (262.8 mA h g −1 over 200 cycles at 100 mA g −1 ) and a good rate capability (109.4 mA h g −1 at 2000 mA g −1 and 52.8 mA h g −1 at 5000 mA g −1 ). Moreover, the capacitance and diffusion mechanisms are also investigated by the qualitative and quantitate analysis, finally accounting for the superior K storage.

Zeolitic imidazolate framework

Carbon fibers

10.1002/ppsc.201900199

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Citations (44)

Studies of the first lithiation of graphite materials by electrochemical impedance spectroscopy

Chinese Science Bulletin (2006)

Quanchao Zhuang Zuofeng Chen Quanfeng Dong Yanxia Jiang Ling Huang

Nyquist plot

Double-layer capacitance

10.1007/s11434-006-1055-y

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