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Your search keyword '"Deng, Yonghong"' showing total 14 results
Start Over Author "Deng, Yonghong" Journal acs applied materials & interfaces
14 results on '"Deng, Yonghong"'

4. Tale of Three Phosphate Additives for Stabilizing NCM811/Graphite Pouch Cells: Significance of Molecular Structure–Reactivity in Dictating Interphases and Cell Performance

Author

Zhao, Huajun, primary, Qian, Yunxian, additional, Hu, Shiguang, additional, Luo, Guangfu, additional, Nie, Chenxi, additional, Qiu, Peiqi, additional, Kang, Yuanyuan, additional, Wang, Han, additional, Chu, Yanli, additional, Wang, Qingrong, additional, Wang, Jun, additional, Shao, Huaiyu, additional, Xu, Kang, additional, and Deng, Yonghong, additional

Published
2021
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7. Mechanism Study of Unsaturated Tripropargyl Phosphate as an Efficient Electrolyte Additive Forming Multifunctional Interphases in Lithium Ion and Lithium Metal Batteries

Author

Qian, Yunxian, primary, Kang, Yuanyuan, additional, Hu, Shiguang, additional, Shi, Qiao, additional, Chen, Qun, additional, Tang, Xiwu, additional, Xiao, Yinglin, additional, Zhao, Huajun, additional, Luo, Guangfu, additional, Xu, Kang, additional, and Deng, Yonghong, additional

Published
2020
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10. Stable Lithium Metal Anodes with a GaOxArtificial Solid Electrolyte Interphase in Damp Air

Author

Han, Bing, Zou, Yucheng, Ke, Ruohong, Li, Tengteng, Zhang, Zhen, Wang, Chaoyang, Gu, Meng, Deng, Yonghong, Yao, Jianquan, and Meng, Hong

Abstract

As a promising high energy density electrode material for rechargeable batteries, lithium (Li) metal is still suffering from air/water instability due to its highly reactive nature. In addition, the Li dendrite issue in Li metal batteries needs to be resolved to ensure the safety of batteries and for wide applications. Herein, we demonstrate that a simple compact GaOxlayer formed using liquid metal (LM) can act as an artificial solid electrolyte interphase to block moisture and oxygen in the air from corroding the lithium metal. Interestingly, GaOxthat covered the electrode effectively inhibits Li dendrite growth in electrochemistry cycling, ensuring the safety of Li metal batteries. The exposed composite Li metal anode (exposed under ambient air with relative humidity (RA) ≈ 75% for 5 h) not only shows a superior stability (symmetrical cell) but also delivers an elevated cycling stability (>500 cycles at 0.5 and 1 C) with a sulfur@C cathode in the full-cell configuration. Our work provides a new pathway for the large-scale applications of the air/water-tolerant Li metal anode in rechargeable batteries.

Published
2021
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14. Enhanced Thermoelectric Performance by Strong Phonon Scattering at the Heterogeneous Interfaces of the Mg2Sn/Mg3Sb2High-Content Nanocomposite

Author

Zhu, Yongbin, Han, Zhijia, Han, Bing, Jiang, Feng, Wu, Xinzhi, Han, Cheng-Gong, Deng, Yonghong, and Liu, Weishu

Abstract

Nano approaches are practical strategies to boost the thermoelectric figure of merit due to the strong phonon scattering from the grain boundaries and nanoinclusions. Here, we have reported a strong phonon scattering at the heterogeneous interfaces of Mg2Sn/Mg3Sb2high-content nanocomposites (HCnCs). As a result, a significantly reduced lattice thermal conductivity of 1.09 W m–1K–1was observed in the equimolar Mg2Sn/Mg3Sb2HCnC, 80% lower than pure Mg2Sn and 25% lower than pure Mg3Sb2. As a result, a high ZT∼ 1.13 at 773 K was achieved in the Mg2Sn/Mg3Sb2HCnC. Furthermore, various defects, including solid solutions, nanoinclusions, and misfit dislocations, were observed in both the Mg3Sb2phase and the Mg2Sn phase through the microstructure characterization.

Published
2021
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