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8 results on '"Chai, Zongjian"'

3. High–Performance of Bi3+and Cl−co–Doped Li3V2(PO4)3as Cathode for Lithium-Ion Batteries

Author

Zhu, DongZhi, Di, YuLi, Chai, ZongJian, Zhu, XiaoDong, Deng, Lin, and Chen, Shanhua

Abstract

Bi3+and Cl−co–doped Li3V1.97Bi0.03(PO4)3−xClx/C compounds (x= 0.03, 0.05, 0.07, 0.09) were prepared via a simple sol–gel method. The XRD patterns proved that a small amount of Bi3+and Cl−doping does not change the crystal structure of Li3V2(PO4)3. Charge/discharge results displayed that Bi3+and Cl−co–doped samples exhibited higher initial capacities than Li3V2(PO4)3/C. Li3V1.97Bi0.03(PO4)2.95Cl0.05/C demonstrated the highest capacity of 188 mAh / g at 0.1 C. Cycling performance at 1 C showed that the capacity retention of Li3V1.97Bi0.03(PO4)2.95Cl0.05/C reaches 81.31 % after 300 cycles. Electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) testing implied that Li3V1.97Bi0.03(PO4)2.95Cl0.05has the smallest charge transfer resistance and the largest lithium ion diffusion coefficient. The improvement can be assigned to the enhanced kinetics of lithium ions, reduction in polarization and decreased charge transfer resistance of the electrode.

Published
2024
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4. Bonding properties evaluation for an EBW joint of RAFM steel by using notched small tensile specimens

Author

Fu, Haiying, primary, Zhang, Liwen, additional, Chai, Zongjian, additional, Zhang, Ming, additional, Yang, Guangpu, additional, Wang, Qiang, additional, Zhang, Kuan, additional, Liao, Hongbin, additional, Wu, Xinghua, additional, Wang, Xiaoyu, additional, Liu, Danhua, additional, Han, Shilei, additional, Chen, Jiming, additional, and Lee, Pengyuan, additional

Published
2021
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5. Variation of gamma radiation shielding properties with incident photon energy and penetration depth for WC/Al composites

Author

Chai Zongjian, Yali Yang, Dengpan Xue, Chen Shanhua, and Xueling Jiang

Subjects
Nuclear and High Energy Physics, Work (thermodynamics), Radiation, Materials science, 020209 energy, 02 engineering and technology, Photon energy, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Radiation shielding, Electromagnetic shielding, 0202 electrical engineering, electronic engineering, information engineering, General Materials Science, Mass attenuation coefficient, Composite material, 0210 nano-technology, Penetration depth, Effective atomic number
Abstract

In this work, we examined the usefulness of the WCx/Al100−x composites (x = 10, 20, 50, 80 wt. %) for gamma-ray shielding materials. The mass attenuation coefficient (μ/ρ), effective atomic...

Published
2018

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