J. Zheng
University of Twente
Faculty of Science & Technology
Carré, 3344
P.O. Box 217
7500 AE Enschede
The Netherlands
Phone: +31 53 4899351
Secretary: +31 53 4892860
E-mail: j.zheng-1@utwente.nl
Research
Recently, all-solid-state lithium-ion batteries, which replace the liquid electrolytes with solid electrolytes, possess many potential merits as higher energy density, long cycle life and higher safety compared with conventional lithium-ion batteries, and consequently have served as the promising next-generation batteries for electric vehicles and smart grid. It is vital to develop solid electrolytes with high lithium-ion conductivity for all-solid-state lithium-ion batteries with high energy and power density. Besides, the fast lithium transfer kinetics between electrodes and solid electrolytes are important as well. Nevertheless, the traditional all-solid-state lithium-ion batteries are still hindered by the ineffective electrode-electrolyte interface.
Hence, my research will focus on exploring the effective strategies to enhance lithium kinetics, and consequently improve the overall electrochemical performance of all-solid-state lithium-ion batteries. In order to achieve this goal, it is necessary to develop interfacial engineering involving effective thin film deposition techniques, among which pulsed laser deposition (PLD) technique is one of ideal strategy to achieve this goal. Using PLD technique can easily achieve a large number of controls during resulting end-product, usually a thin-film. Constructing the electrodes with different crystal orientations via PLD technique has been proved to be the effective ways to enhance lithium transport kinetics because of the larger interface area. Meanwhile, modifying surface of the electrodes by PLD technique has also succeeded in decreasing the solid-solid contact resistance of interfaces. However, it still remains the challenges to explore more effective strategies to use PLD to modify and tune the interfaces between electrodes and electrolytes and address the shortcomings mentioned above.
publication list
- L. Wu1, J. Zheng1, L. Wang1, X. Xiong*, Y. Shao, G. Wang, J. Wang, S. Zhong*, M. Wu*, PPy-encapsulated SnS2 nanosheets stabilized by defects on TiO2 support as durable anode material for lithium ion battery. 1Equal Contribution, Angewandte Chemie International Edition (2018), https://doi.org/10.1002/anie.201811784. (communication)
- J. Zheng, Y. Luo, D. Xie, X. Xiong*, G. Wang, Z. Lin, C. Yang*, M. Liu, One-pot synthesis of SnS/C nanocomposites on carbon paper as a high-performance free-standing anode for lithium ion batteries. Journal of Alloys and Compounds, 2019, 779, 67-73. (Full Paper)
- J. Zheng, X. Xiong*, G. Wang, Z. Lin, X. Ou, C. Yang*, M. Liu, SnS2 nanoparticles anchored on three-dimensional reduced graphene oxide as a durable anode for sodium ion batteries. Chemical Engineering Journal, 2018, 339, 78-84. (Full paper)
- Z. Lin, G. Wang, X. Xiong*, J. Zheng, X. Ou, C. Yang, Ni-polymer gels-derived hollow NiSb alloy confined in 3d interconnected carbon as superior sodium-ion battery anode. Electrochimica Acta, 2018, 269, 225-231. (Full Paper)
- G. Wang, X. Xiong*, Z. Lin, J. Zheng, F. Zheng, Y. Li, Y. Liu, C. Yang, Y. Tang, M. Liu, Uniform Li deposition regulated via three-dimensional polyvinyl alcohol nanofiber networks for effective Li metal anodes. Nanoscale, 2018, 10, 10018-10024. (Full Paper)
- Z. Lin, X. Xiong*, J. Zheng, G. Wang, C. Yang, Three-dimensional N-doped graphene as anode material with superior cycle stability for sodium ion batteries. Materials Letters, 2017, 202, 123-126. (Full Paper)