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Xiqian Yu
Researcher at Chinese Academy of Sciences
Publications - 217
Citations - 23542
Xiqian Yu is an academic researcher from Chinese Academy of Sciences. The author has contributed to research in topics: Cathode & Electrolyte. The author has an hindex of 67, co-authored 187 publications receiving 15895 citations. Previous affiliations of Xiqian Yu include Brookhaven College & Brookhaven National Laboratory.
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Journal ArticleDOI
Role of Surface Structure on Li-Ion Energy Storage Capacity of Two-Dimensional Transition-Metal Carbides
Yu Xie,Michael Naguib,Vadym Mochalin,Michel W. Barsoum,Yury Gogotsi,Xiqian Yu,Kyung-Wan Nam,Xiao-Qing Yang,Alexander I. Kolesnikov,Paul R. C. Kent +9 more
TL;DR: L lithiated oxygen terminated MXenes surfaces are able to adsorb additional Li beyond a monolayer, providing a mechanism to substantially increase capacity, as observed mainly in delaminated MXenes and confirmed by DFT calculations and XAS.
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Approaching Practically Accessible Solid-State Batteries: Stability Issues Related to Solid Electrolytes and Interfaces
TL;DR: This review presents an overview on the scientific challenges, fundamental mechanisms, and design strategies for solid-state batteries, specifically focusing on the stability issues ofSolid-state electrolytes and the associated interfaces with both cathode and anode electrodes.
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Structural changes and thermal stability of charged LiNixMnyCozO2 cathode materials studied by combined in situ time-resolved XRD and mass spectroscopy
Seong-Min Bak,Enyuan Hu,Yong-Ning Zhou,Xiqian Yu,Sanjaya D. Senanayake,Sung-Jin Cho,Kwang Bum Kim,Kyung Yoon Chung,Xiao-Qing Yang,Kyung-Wan Nam +9 more
TL;DR: This systematic study provides insight into the rational design of NMC-based cathode materials with a desired balance between thermal stability and high energy density.
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Origin of additional capacities in metal oxide lithium-ion battery electrodes
Yan-Yan Hu,Zigeng Liu,Kyung-Wan Nam,Olaf J. Borkiewicz,Jun Cheng,Xiao Hua,Matthew T. Dunstan,Xiqian Yu,Kamila M. Wiaderek,Lin-Shu Du,Karena W. Chapman,Peter J. Chupas,Xiao-Qing Yang,Claire P. Grey,Claire P. Grey +14 more
TL;DR: High-resolution multinuclear/multidimensional solid-state NMR techniques are used with in situ synchrotron-based techniques to study the prototype conversion material RuO2, demonstrating a protocol for studying the structure and spatial proximities of nanostructures formed in this system, including the amorphous solid electrolyte interphase that grows on battery electrodes.
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Evolution of redox couples in Li- and Mn-rich cathode materials and mitigation of voltage fade by reducing oxygen release
Enyuan Hu,Xiqian Yu,Xiqian Yu,Ruoqian Lin,Ruoqian Lin,Xuanxuan Bi,Jun Lu,Seong-Min Bak,Kyung-Wan Nam,Huolin L. Xin,Cherno Jaye,Daniel A. Fischer,K. Amine,Xiao-Qing Yang +13 more
TL;DR: In this paper, the average valence state of each type of transition metal cation is continuously reduced, which is attributed to oxygen release from the LMR material, and surface coating and modification methods are suggested to suppress the voltage fade through reducing the oxygen release.