Jahn‐Teller Effect in Sodium Layered Oxide Cathodes: Inducement Mechanisms, Mitigation Strategies, and Rational Utilizations DOI
Yanjiang Li,

Yan‐Fang Zhu,

Bing‐Bing Chen

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 2, 2025

Abstract The sodium‐layered transition metal oxides (Na x TMO 2 ) are regarded as the promising cathode for sodium‐ion batteries (SIBs) relying on their high theory capacity and cost‐effectiveness. Nevertheless, intrinsic lattice distortions caused by Jahn‐Teller active ions significantly degrade structural stability of Na , generally resulting in unsatisfactory electrochemical properties. In this review, begins introducing inducement mechanisms effect (TM) ions. Subsequently, restraining strategies well corresponding using element doping/substitutions, surface reconstructions, polyphase symbiosis, TM/oxygen/Na + vacancy manipulations summarized detail. Specifically, influences such mitigation deformation properties, phase evolution behaviors, TM dissolution characteristics, crystal comprehensively discussed. Furthermore, sensible utilization distortion is to build cathodes with and/or repaid ion transport kinetics well. end, challenges faced amelioration methods overviewed put forward research directions future trenchantly constrain 6 octahedron deformation. This work will provide more perceptions further studies SIBs.

Язык: Английский

Recent Advances in High‐Entropy Layered Oxide Cathode Materials for Alkali Metal‐Ion Batteries DOI
Liping Duan, Yingna Zhang,

Haowei Tang

и другие.

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Окт. 29, 2024

Abstract Since the electrochemical de/intercalation behavior is first detected in 1980, layered oxides have become most promising cathode material for alkali metal‐ion batteries (Li + /Na /K ; AMIBs) owing to their facile synthesis and excellent theoretical capacities. However, inherent drawbacks of unstable structural evolution sluggish diffusion kinetics deteriorate performance, limiting further large‐scale applications. To solve these issues, novel strategy high entropy has been widely applied oxide cathodes AMIBs recent years. Through multielement synergy stabilization effects, high‐entropy (HELOs) can achieve adjustable activity enhanced stability. Herein, basic concepts, design principles, methods HELO are introduced systematically. Notably, it explores detail improvements on limitations oxides, highlighting latest advances materials field AMIBs. In addition, introduces advanced characterization calculations HELOs proposes potential future research directions optimization strategies, providing inspiration researchers develop areas energy storage conversion.

Язык: Английский

Процитировано

37

Mitigating Long Range Jahn‐Teller Ordering to Stabilize Mn Redox Reaction in Biphasic Layered Sodium Oxide DOI

Shihao Li,

Wei Zhou, Fangyan Liu

и другие.

Advanced Energy Materials, Год журнала: 2024, Номер unknown

Опубликована: Окт. 31, 2024

Abstract To develop the next‐generation commercial oxide cathodes for sodium‐ion batteries, it is crucial to reduce expensive Ni element content, and further regulate redox reaction of cheap transition metal elements such as Mn elevate specific capacity. Nevertheless, activation (MRR) remains a challenge, notably, MRR induces pronounced Jahn‐Teller effect, resulting in severe structural distortion fast performance decay. Herein, activated by Na vacancies weakened hybridization O (2p)‐TM (3d‐t 2 g ) orbital, biphasic low‐Ni Mn‐based P2/O3‐Na 0.8 0.23 Fe 0.34 0.43 (P2/O3) exhibits reversible MRR, which performs between 4+ 3+ during charging discharging. Due interlaced arrangement P2‐type O3‐type crystal domains P2/O3, long range ordering restricted mitigate cooperative MnO6 octahedron induced effect suppressed, ensuring sustained stable involvement charge compensation. In addition, owing introduction phase, there significant reduction migration barrier sodium ions no obvious capacity decline after air exposure, leading marked enhancement dynamic stability respectively. Consequently, P2/O3 excellent electrochemical processing performance.

Язык: Английский

Процитировано

11

Research progress on P2-type layered oxide cathode materials for sodium-ion batteries DOI
Chen Wu, Yuxing Xu,

Jiechen Song

и другие.

Chemical Engineering Journal, Год журнала: 2024, Номер 500, С. 157264 - 157264

Опубликована: Ноя. 1, 2024

Язык: Английский

Процитировано

8

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

и другие.

Chemical Communications, Год журнала: 2025, Номер unknown

Опубликована: Янв. 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.

Язык: Английский

Процитировано

0

Jahn‐Teller Effect in Sodium Layered Oxide Cathodes: Inducement Mechanisms, Mitigation Strategies, and Rational Utilizations DOI
Yanjiang Li,

Yan‐Fang Zhu,

Bing‐Bing Chen

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 2, 2025

Abstract The sodium‐layered transition metal oxides (Na x TMO 2 ) are regarded as the promising cathode for sodium‐ion batteries (SIBs) relying on their high theory capacity and cost‐effectiveness. Nevertheless, intrinsic lattice distortions caused by Jahn‐Teller active ions significantly degrade structural stability of Na , generally resulting in unsatisfactory electrochemical properties. In this review, begins introducing inducement mechanisms effect (TM) ions. Subsequently, restraining strategies well corresponding using element doping/substitutions, surface reconstructions, polyphase symbiosis, TM/oxygen/Na + vacancy manipulations summarized detail. Specifically, influences such mitigation deformation properties, phase evolution behaviors, TM dissolution characteristics, crystal comprehensively discussed. Furthermore, sensible utilization distortion is to build cathodes with and/or repaid ion transport kinetics well. end, challenges faced amelioration methods overviewed put forward research directions future trenchantly constrain 6 octahedron deformation. This work will provide more perceptions further studies SIBs.

Язык: Английский

Процитировано

0