Insights into layered–tunnel dynamic structural evolution based on local coordination chemistry regulation for high‐energy‐density and long‐cycle‐life sodium‐ion oxide cathodes DOI Creative Commons
Yao Xiao, Yi‐Feng Liu, Hongwei Li

et al.

InfoMat, Journal Year: 2023, Volume and Issue: 5(10)

Published: July 26, 2023

Abstract The pursuit of high energy density while achieving long cycle life remains a challenge in developing transition metal (TM) oxide cathode materials for sodium‐ion batteries (SIBs). Here, we present concept precisely manipulating structural evolution via local coordination chemistry regulation to design high‐performance composite materials. controllable process is realized by tuning magnesium content Na 0.6 Mn 1− x Mg O 2 , which elucidated combination experimental analysis and theoretical calculations. substitution into sites not only induces unique from layered–tunnel structure layered but also mitigates the Jahn–Teller distortion 3+ . Meanwhile, benefiting strong ionic interaction between 2+ 2− environments around coordinated with electrochemically inactive are anchored TM layer, providing pinning effect stabilize crystal smooth electrochemical profile. 0.95 0.05 material delivers 188.9 mAh g −1 specific capacity, equivalent 508.0 Wh kg at 0.5C, exhibits 71.3% capacity retention after 1000 cycles 5C as well excellent compatibility hard carbon anode. This work may provide new insights inspire more novel SIB image

Language: Английский

Achieving a Deeply Desodiated Stabilized Cathode Material by the High Entropy Strategy for Sodium‐ion Batteries DOI
Zhaoguo Liu,

Rixin Liu,

Sheng Xu

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(29)

Published: May 6, 2024

Abstract Manganese‐based layered oxides are currently of significant interest as cathode materials for sodium‐ion batteries due to their low toxicity and high specific capacity. However, the practical applications impeded by sluggish intrinsic Na + migration poor structure stability a result Jahn–Teller distortion complicated phase transition. In this study, high‐entropy strategy is proposed enhance high‐voltage capacity cycling stability. The designed P2‐Na 0.67 Mn 0.6 Cu 0.08 Ni 0.09 Fe 0.18 Ti 0.05 O 2 achieves deeply desodiation delivers charging 158.1 mAh g −1 corresponding 0.61 with initial Coulombic efficiency 98.2 %. charge compensation attributed cationic anionic redox reactions conjunctively. Moreover, crystal effectively stabilized, leading slight variation lattice parameters. This research carries implications expedited development low‐cost, high‐energy‐density batteries.

Language: Английский

Citations

18
Unlocking Na-Storage Potential: Hierarchical NASICON Na4MnV(PO4)3 Cathode with Precise V(III)/Mn(II) Integration through the Citric Acid-Derived Carbon Layer DOI

Hongjie Chen,

Yixuan Su,

Yucong Chen

et al.

ACS Applied Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 2, 2025

Language: Английский

Citations

2
Boosting ultralong lifespan of Fe-based Prussian blue analogs cathode via element doping and crystal water capture DOI
Xuan Wang,

Mengran Zhao,

Wenjing Du

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160997 - 160997

Published: Feb. 1, 2025

Language: Английский

Citations

2
Multifunctional Separator Enables High‐Performance Sodium Metal Batteries in Carbonate‐Based Electrolytes DOI Creative Commons
Haoxuan Liu, Xiaoyang Zheng, Yumeng Du

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(5)

Published: Nov. 22, 2023

Abstract Sodium metal has become one of the most promising anodes for next‐generation cheap and high‐energy‐density batteries; however, challenges caused by uncontrollable sodium dendrite growth fragile solid electrolyte interphase (SEI) restrict their large‐scale practical applications in low‐cost wide‐voltage‐window carbonate electrolytes. Herein, a novel multifunctional separator with lightweight high thinness is proposed, assembled cobalt‐based metal–organic framework nanowires (Co‐NWS), to replace widely applied thick heavy glass fiber separator. Benefitting from its abundant sodiophilic functional groups densely stacked nanowires, Co‐NWS not only exhibits outstanding wettability effectively induces uniform Na + ion flux as strong redistributor but also favors constructing robust N,F‐rich SEI layer. Satisfactorily, 10 µL electrolyte, Na|Co‐NWS|Cu half‐cell delivers stable cycling (over 260 cycles) average Coulombic efficiency 98%, symmetric cell shows long cycle life more than 500 h. Remarkably, full long‐term span 1500 cycles 92% capacity retention) at current density electrolyte. This work opens up strategy developing dendrite‐free, low‐cost, long‐life‐span batteries carbonate‐based

Language: Английский

Citations

41
Insights into layered–tunnel dynamic structural evolution based on local coordination chemistry regulation for high‐energy‐density and long‐cycle‐life sodium‐ion oxide cathodes DOI Creative Commons
Yao Xiao, Yi‐Feng Liu, Hongwei Li

et al.

InfoMat, Journal Year: 2023, Volume and Issue: 5(10)

Published: July 26, 2023

Abstract The pursuit of high energy density while achieving long cycle life remains a challenge in developing transition metal (TM) oxide cathode materials for sodium‐ion batteries (SIBs). Here, we present concept precisely manipulating structural evolution via local coordination chemistry regulation to design high‐performance composite materials. controllable process is realized by tuning magnesium content Na 0.6 Mn 1− x Mg O 2 , which elucidated combination experimental analysis and theoretical calculations. substitution into sites not only induces unique from layered–tunnel structure layered but also mitigates the Jahn–Teller distortion 3+ . Meanwhile, benefiting strong ionic interaction between 2+ 2− environments around coordinated with electrochemically inactive are anchored TM layer, providing pinning effect stabilize crystal smooth electrochemical profile. 0.95 0.05 material delivers 188.9 mAh g −1 specific capacity, equivalent 508.0 Wh kg at 0.5C, exhibits 71.3% capacity retention after 1000 cycles 5C as well excellent compatibility hard carbon anode. This work may provide new insights inspire more novel SIB image

Language: Английский

Citations

35