La3+ Doped Nickel‐Manganese Oxide as High‐Capacity Cathode for Sodium‐Ion Batteries Guided by Bayesian Optimization DOI Open Access
Jie Feng, Dapeng Liu,

Jin Sun

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 30, 2024

Abstract In sodium‐ion batteries, the layered transition metal oxides used as cathode often experience interlayer sliding of spacing and lattice variations during charge/discharge, leading to structural damage capacity degradation. To address this challenge, a La 3+ doping strategy guided by Bayesian optimization has been employed prepare high‐performance O3‐NaNi 0.39 Mn 0.50 Cu 0.06 0.05 O 2 (NMCL) material. Density functional theory calculations reveal that 2p orbital overlaps with t 2g metals in NMCL, facilitating formation Na−O−La bonds promoting oxygen redox reaction kinetics. During Na + (de)intercalation process, NMCL exhibits significant negative expansion, characterized an increase c parameter exceptionally low volume expansion 1.8 % 3.1 %, respectively. Consequently, it delivers excellent specific 243.3 mAh g −1 over wide voltage range 2.0 V 4.5 V, which can be attributed promotes oxidation 2− peroxide n− ( n <2) charge.

Language: Английский

Structural Regulation of P2‐Type Layered Oxide with Anion/Cation Codoping Strategy for Sodium‐Ion Batteries DOI Open Access
Xu Wang,

Zixiang Yang,

Dongliang Chen

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 12, 2024

Abstract P2‐type layered transition metal oxides are potential cathodes for sodium‐ion batteries (SIBs), but they commonly suffer from severe capacity degradation owing to multiple phase transitions and Na + /vacancy ordering during the extraction/insertion process. An anionic/cationic co‐doping strategy at high sodium contents is proposed effectively achieve high‐rate long‐term stability of P2‐Na 0.67 Ni 0.33 Mn O 2 . The resulting 0.75 Mg 0.1 0.23 1.95 F 0.05 (NMNMOF) cathode delivers a reversible 116 mAh g −1 75 mA maintains an initial 73% 1500 after 1000 cycles. Mg/F impacts local environment surrounding oxygen, regulates electron distribution, modifies diffusion state sites, enhancing ability Moreover, P2‐O2 well suppressed decrease in 3+ content greatly alleviates Jahn–Teller effect enhance structural stability. full‐cell devices with NMNMOF hard carbon anode demonstrate 80 10 C excellent cycle life over 500 cycles applications. will inspire rational design provide new perspective advanced SIBs.

Language: Английский

Citations

7
Improving long-cycle capability of O3 type NaNi1/3Fe1/3Mn1/3O2 via Ti replacing Fe for stable sodium-ion batteries DOI
Yiru Zhou,

Zihao Su,

Jie Miao

et al.

Ionics, Journal Year: 2025, Volume and Issue: unknown

Published: April 15, 2025

Language: Английский

Citations

0
Probe the Role of Oxygen Anionic Redox in High‐Energy‐Density Battery with Advanced Characterization Techniques DOI

Qianwen Dong,

Junxiu Wu, Jun Lü

et al.

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 24, 2025

Abstract The rapid advancement of the new energy industry has resulted in an urgent demand for batteries with superior density. To this end, oxygen anionic redox (OAR) emerges as a paradigm significantly enhancing battery density, which is initially explored diverse systems. Although feasibility OAR various cathode materials affirmed, it essential to consider inevitable consequent issues, such irreversibility process and potential damage electrode structure. achieve comprehensive understanding effectively leverage high‐energy‐density batteries, extensive research focused on performance enhancement failure mechanisms different However, owing limitation characterization techniques, systematic approaches studying lacking. Herein, combing advanced overview provided from local full cathodes, triggers, working processes challenges associated are presented. This perspective will end discussion how develop technology applied along caution practical application OAR.

Language: Английский

Citations

0
Co-operative Interaction of Multiple Ions for P2-Type Sodium-Ion Battery Cathodes at High-Voltage Cyclability DOI
Jingcheng Huang,

Lanyan Li,

Zhongyun Ma

et al.

ACS Applied Energy Materials, Journal Year: 2025, Volume and Issue: 8(1), P. 99 - 107

Published: Jan. 2, 2025

Layered P2-type Na0.67Ni0.33Mn0.67O2 (NNMO) is regarded as a viable cathode material because of its open structure, high theoretical capacity, and simplicity in preparation. However, it suffers from intrinsic lattice distortion, complex phase transitions, severe Na+/vacancy ordering issues. In this study, the synthesized Na0.78Li0.05Cu0.05Ni0.25Mn0.6Ti0.05O2 (NLCNMTO) introduces substitution Li, Cu, Ti for Ni Mn. Through synergistic effect multiple ions, structural stability improved transition are suppressed at voltage. NLCNMTO materials have better ionic conductivity stronger TM–O covalent bonds, which improves composites' diffusion rate stability. It stabilized P2 over voltage range 2–4.5 V with good cycling multiplicative performance. This study provides possible multi-ion codoping design advanced SIBs optimized high-voltage activity well excellent

Language: Английский

Citations

0
Realizing reversible anionic redox based on a Na–O–Li configuration for Na-layered oxide cathodes with solid-solution reaction DOI
Mingjing Yang, Guangyu Zhang, Haiyan Hu

et al.

Chemical Communications, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

The incorporation of the Na–O–Li configuration activates and stabilizes anionic redox reactions, realizing complete solid-solution reaction, leading to significant improvements in capacity cycling stability.

Language: Английский

Citations

0
Potential-dependent interfacial specific adsorption accelerates charge transfer in sodium-ion batteries DOI
Yao Xiao, Shaowen Xu, Wei Liu

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: April 10, 2025

Abstract Fast-charging capabilities of sodium-ion batteries have emerged as a pivotal objective within the energy storage fields. Sodium layered P2-type oxide cathodes most potential for fast charging due to their inherent Na+ mobility. However, electrochemical polarization and interfacial charge transfer especially at high state are limiting factors in quick kinetic response large current. Herein, we demonstrate that typical cathode (Na0.7Ni0.27Mn0.53Cu0.04Fe0.08Ti0.08O2) achieves high-rate capacities through avoiding octahedral stacking faults, maintaining lattice oxygen activity controlling anion-specific adsorption. The intermediate Z-phase intergrowth structure mitigate hysteresis thermodynamic by simultaneously suppressing detrimental P2−O2 phase evolution irreversible redox. potential-dependent competitive adsorption mechanism between anions solvent molecules is revealed inner Helmholtz plane (IHP), where optimized elevates difference IHP, accelerating across electrode/electrolyte interface. Furthermore, F-rich cathode/electrolyte interphase generated from IHP avoids transition metal dissolution surface collapse stable long-term cycling. This study highlights synergistic coupling interaction bulk stability environment optimization ensuring Na+/charge transport kinetics batteries.

Language: Английский

Citations

0
Facilitating the oxygen redox chemistry in O3-type layered oxide cathode material for sodium-ion batteries by Fe substitution DOI
Wei Xiong, Zhihao Liu, Wood-Hi Cheng

et al.

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 1, 2024

Language: Английский

Citations

3
Improving High-Voltage Cycling Stability and High-Rate Capability of Sodium-Ion Layered Cathode Oxides through Trace Amounts of Low-Valence Metals DOI
Lei Xu, Hang Fan, Jianying Li

et al.

Langmuir, Journal Year: 2024, Volume and Issue: 40(36), P. 19270 - 19278

Published: Aug. 27, 2024

With the increasing demand for clean energy sources, need large-scale storage systems to ensure stable output of renewable such as wind and solar, has also increased. Sodium-ion batteries have emerged a potential solution these owing their high density, abundance in Earth's crust, low cost. However, larger atomic radius sodium ions results higher barriers ion migration cathode materials, which can affect cycle life rate performance battery. Therefore, developing suitable structure that facilitates rapid sodiation desodiation maintains good cycling stability remains significant challenge. This study aimed reduce content trivalent manganese minimize impact Jahn-Teller effect enhance capacity retention manganese-based layered oxides. Additionally, series P2-type Na

Language: Английский

Citations

1
Reductive coupling mechanism in layered oxide cathodes for lithium-/sodium-ion batteries DOI
Yao Wang, Yongchang Liu

Science China Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 14, 2024

Language: Английский

Citations

1
La3+ Doped Nickel‐Manganese Oxide as High‐Capacity Cathode for Sodium‐Ion Batteries Guided by Bayesian Optimization DOI Open Access
Jie Feng, Dapeng Liu,

Jin Sun

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 30, 2024

Abstract In sodium‐ion batteries, the layered transition metal oxides used as cathode often experience interlayer sliding of spacing and lattice variations during charge/discharge, leading to structural damage capacity degradation. To address this challenge, a La 3+ doping strategy guided by Bayesian optimization has been employed prepare high‐performance O3‐NaNi 0.39 Mn 0.50 Cu 0.06 0.05 O 2 (NMCL) material. Density functional theory calculations reveal that 2p orbital overlaps with t 2g metals in NMCL, facilitating formation Na−O−La bonds promoting oxygen redox reaction kinetics. During Na + (de)intercalation process, NMCL exhibits significant negative expansion, characterized an increase c parameter exceptionally low volume expansion 1.8 % 3.1 %, respectively. Consequently, it delivers excellent specific 243.3 mAh g −1 over wide voltage range 2.0 V 4.5 V, which can be attributed promotes oxidation 2− peroxide n− ( n <2) charge.

Language: Английский

Citations

0