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Your search keyword '"Zhu Caizhen"' showing total 553 results
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553 results on '"Zhu Caizhen"'

1. Combining Zn0.76Co0.24S with S-doped graphene as high-performance anode materials for lithium- and sodium-ion batteries

Author

Lin Yemao, Huang Jintao, Shi Ludi, Cong Guangtao, Zhu Caizhen, and Xu Jian

Subjects
zn0.76co0.24s@n/s-rgo, sodium-ion batteries, lithium-ion batteries, anode materials, Technology, Chemical technology, TP1-1185, Physical and theoretical chemistry, QD450-801
Abstract

An easy and facile hydrothermal method is presented to synthesize hybrid materials of hollow mesoporous Zn0.76Co0.24S nanospheres anchored on reduced graphene oxide (rGO) sheets (Zn0.76Co0.24S@N/S-rGO), in which the obtained Zn0.76Co0.24S nanospheres are composed of numerous nanoparticles. Being evaluated as anode materials for lithium-ion batteries (LIBs) and sodium-ion batteries (SIBs), the Zn0.76Co0.24S@N/S-rGO composites exhibited a high reversible capacity of 804 and 605 mA h g−1 at the current density of 1 A g−1 after 500 cycles for LIBs and SIBs, respectively. The excellent electrochemical performance of Zn0.76Co0.24S@N/S-rGO composites originates from the synergistic effect between hollow Zn0.76Co0.24S nanospheres and reduction graphene, as well as the void spaces between the neighbouring nanoparticles of Zn0.76Co0.24S providing large contact areas with electrolyte and buffer zone to accommodate the volume variation during the cycling process.

Published
2020
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21. Ion‐Conducting Molecular‐Grafted Sustainable Cellulose Quasi‐Solid Composite Electrolyte for High Stability Solid‐State Lithium‐Metal Batteries

Author

Wang, Ruixue, primary, Dong, Weiliang, additional, Song, Zhennuo, additional, Tan, Jiji, additional, Liu, Qiang, additional, Mu, Kexin, additional, Xu, Weijian, additional, Huang, Haiyu, additional, Zhang, Zhili, additional, Yin, Gang, additional, Zhu, Caizhen, additional, Xu, Jian, additional, and Tian, Lei, additional

Published
2024
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29. Optimization Design of Fluoro‐Cyanogen Copolymer Electrolyte to Achieve 4.7 V High‐Voltage Solid Lithium Metal Battery.

Author

Xu, Weijian, Dong, Weiliang, Lin, Jianzhou, Mu, Kexin, Song, Zhennuo, Tan, Jiji, Wang, Ruixue, Liu, Qiang, Zhu, Caizhen, Xu, Jian, and Tian, Lei

Subjects
POLYELECTROLYTES, FLUOROPOLYMERS, LITHIUM cells, SOLID electrolytes, ELECTROLYTES, LITHIUM cobalt oxide, INTERFACE stability
Abstract

Raising the charging voltage and employing high‐capacity cathodes like lithium cobalt oxide (LCO) are efficient strategies to expand battery capacity. High voltage, however, will reveal major issues such as the electrolyte's low interface stability and weak electrochemical stability. Designing high‐performance solid electrolytes from the standpoint of substance genetic engineering design is consequently vital. In this instance, stable SEI and CEI interface layers are constructed, and a 4.7 V high‐voltage solid copolymer electrolyte (PAFP) with a fluoro‐cyanogen group is generated by polymer molecular engineering. As a result, PAFP has an exceptionally broad electrochemical window (5.5 V), a high Li+ transference number (0.71), and an ultrahigh ionic conductivity (1.2 mS cm−2) at 25 °C. Furthermore, the Li||Li symmetric cell possesses excellent interface stability and 2000 stable cycles at 1 mA cm−2. The LCO|PAFP|Li batteries have a 73.7% retention capacity after 1200 cycles. Moreover, it still has excellent cycling stability at a high charging voltage of 4.7 V. These characteristics above also allow PAFP to run stably at high loading, showing excellent electrochemical stability. Furthermore, the proposed PAFP provides new insights into high‐voltage resistant solid polymer electrolytes. [ABSTRACT FROM AUTHOR]

Published
2024
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