Xuexia Song

“Pinning effect” mitigating Jahn-Teller distortion of manganese-rich phosphate cathodes in sodium-ion batteries

Zihao Yang, Dongzhu Liu, Yongtao Ma, Xuexia Song et autres

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Coupled optimization of electronic and lattice structure for sodium storage stability in layered sodium vanadate cathodes

Haofei Yang, Wenbin Li, Jintao Xu, Yetong Li et autres

Layered sodium vanadate has attracted considerable attention as a promising cathode material for sodium-ion batteries, due to its multiple accessible vanadium valence states and large interlayer spacing. However, its inherent limitations in electronic/ionic conductivity and lattice stability result in poor Na + …

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Local electronic regulation of Na5V12O32 cathode suppressing structural distortion toward enhanced sodium storage

Xuexia Song, Jingjing Wang, Wenbin Li, Xiao Wei et autres

High-voltage layered oxide cathodes have received extensive attention for sodium-ion batteries owing to their potential high energy and power densities, but their stabilization remains a universal challenge. Herein, a stable high-voltage KxNa5-xV12O32 cathode is designed by synergistically tuning the irreversible phase and …

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Phosphorus Vacancies Induced Electron Redistribution of Ni‐CoP 1‐x /Ti 3 C 2 Boosting Bimetallic Redox Activity for High‐Performance Hybrid Supercapacitors

Yangyang Luo, Shuting Jia, Guiqiang Cao, Xuexia Song et autres

Abstract Defect engineering is recognized as an effective strategy to address the sluggish reaction kinetics of cobalt phosphide (CoP). Herein, nickel‐doped CoP nanosheet arrays with different phosphorus vacancies (Ni‐CoP 1‐x ) are vertically grown on both sides of alkali‐induced 3D crumpled Ti …

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Reconstructing the inner/outer interphases in phosphorus/carbon anodes toward fast and durable potassium storage via chalcogen modifications

Wengang Lv, Wei Xiao, X.B. Li, Menglin Zhang et autres

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Oxygen Vacancy Engineering Induced by Binary Metal Ions Pre‐Intercalation to Realize Stable Na + Storage at High Voltage

Haofei Yang, Wenbin Li, Qi Dong, Jianhua Zhang et autres

Abstract Oxygen vacancy (Vo) engineering is an important lattice modification strategy to achieve the balance between Na + storage number and lattice stability of layered oxide cathodes. However, the as‐reported Vo regulation strategies usually present poor modulation accuracy, which would be detrimental …

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Optimization of single-atom catalysts for sulfur cathode in lithium-sulfur batteries: A review

Mengyang Li, Jingjing Wang, Guiqiang Cao, Xuexia Song et autres

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Construction of Ultrafine Bimetallic Mn–Fe Phosphide Embedded in Nitrogen-Doped 3D Carbon Shells and the Excellent Na-Ion Storage Performance

Zhipeng Qin, Shuling Liu, Xiaoxia Du, Zijing Wu et autres

Transition-metal phosphides (TMPs) possess high theoretical capacity and voltage, which make them promising candidates for anode materials in sodium-ion batteries (SIBs). However, TMP anode materials face challenges such as significant volume expansion and poor conductivity. In this study, we synthesized nanobimetallic manganese–iron …

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Inner Helmholtz Plane constructing LiF-rich solid electrolyte interphase of silicon anodes

Ming Li, Hao Li, Qinting Jiang, Jingjing Wang et autres

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Tuning D‐Band Center of Vanadium in Constructing Lattice‐Matched Coherent Heterostructure for Enhanced Sodium Storage

Xuexia Song, Jingjing Wang, Qinting Jiang, Ming Li et autres

Abstract A multiphasic K 0.147 Na 4.853 V 12 O 32 /NaV 6 O 15 @C (KNVO/NVO@C) heterostructure is realized to feature a lattice‐matched coherent interface with a strong interfacial electric field in the cathodes, thereby elevating the d‐band center and strengthening …

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LiF‐Rich Cathode Electrolyte Interphases Homogenizing Li + Fluxes toward Stable Interface in Li‐Rich Mn‐Based Cathodes

Qinting Jiang, Ming Li, Jun Li, Jingjing Wang et autres

Abstract Constructing a stable cathode‐electrolyte interphase (CEI) is crucial to enhance the battery performance of Li‐rich Mn‐based oxide (LMO) cathodes. To achieve an ideal CEI, a gas‐phase fluorination technique is proposed to pre‐structure a robust LiF layer (≈1 nm) on the LMO …

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Ti/Cr dual-doped NASICON-type Na 3 V 2 (PO 4 ) 3 cathodes for multi-electron high-energy sodium storage

Shuling Liu, Yu Cao, Zhipeng Qin, J S Li et autres

A Ti/Cr dual-doped NVP cathode uses Ti/V redox for high capacity and rate stability. Doping lowers Na + migration barriers for faster kinetics. A full cell shows practical SIB viability.

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