Correlating concerted cations with oxygen redox in rechargeable batteries

Wang, Shiqi; Wang, Lifan; Sandoval, David; Liu, Tongchao; Zhan, Chun; Amine, Khalil

doi:10.1039/d3cs00550j

Cited by 4 publications

(2 citation statements)

References 156 publications

(242 reference statements)

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“…It is noted that the specific capacity of the P2 phase material has been significantly augmented in recent years through the introduction of anionic redox. Relative to simple cationic redox, the synergistic effect between cationic and anionic redox offers significant potential for practical applications of P2 phase materials . Regrettably, these compounds frequently undergo phase transitions during the cycling process, leading to volume changes.…”

Section: Phase Transition In Layered Oxides For Sibsmentioning

confidence: 99%

“…Relative to simple cationic redox, the synergistic effect between cationic and anionic redox offers significant potential for practical applications of P2 phase materials. 29 Regrettably, these compounds frequently undergo phase transitions during the cycling process, leading to volume changes. These inadvertent phase transitions can significantly diminish the cycle life.…”

Section: Phase Transition In Layered Oxides For Sibsmentioning

confidence: 99%

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Perspective on Phase Transition in Layered Oxide Cathodes for Sodium-Ion Batteries: Mechanism, Influenced Factors, and Inhibition Strategies

Zhang,

2024

Energy Fuels

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Sodium-ion batteries (SIBs) have great potential for large-scale energy storage devices due to the high abundance, wide distribution, and nontoxicity of the resource. Among the various cathode materials, layered oxides are considered a strong contender in the future SIBs market due to their open two-dimensional sodium ion diffusion channels, high theoretical capacity, and ease of synthesis. Unfortunately, layered oxides face phase transition during cycling, accompanied by severe electrochemical performance degradation, which greatly limits the long cycling stability. Therefore, it is of great significance to fully understand the mechanism, the origin, the influenced factors, and the inhibition strategies of phase transitions to develop a good cathode material. This review focuses on the phase transition in layered oxide cathodes, pointing out the intrinsic causes and degradation mechanisms of phase transition. Moreover, we summarize the mainstream strategies to inhibit the phase transition, such as elemental doping, surface coating, and structural modification, as well as the novel strategy of introducing anionic redox. We hope that this review provides new comprehension in understanding the phase transition of layered oxides and in designing SIBs with superior performance.

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Section: Phase Transition In Layered Oxides For Sibsmentioning

confidence: 99%

Section: Phase Transition In Layered Oxides For Sibsmentioning

confidence: 99%

Perspective on Phase Transition in Layered Oxide Cathodes for Sodium-Ion Batteries: Mechanism, Influenced Factors, and Inhibition Strategies

Zhang,

2024

Energy Fuels

View full text Add to dashboard Cite

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Insights into Cation Migration and Intermixing in Advanced Cathode Materials for Lithium‐Ion Batteries

Zhang,

Yang,

et al. 2024

Advanced Energy Materials

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Cathode materials are the core components of lithium‐ion batteries owing to the determination of the practical voltage and effective energy of the battery system. However, advanced cathodes have faced challenges related to cation migration and cation intermixing. In this review, the study summarizes the structural failure mechanisms due to the cation mixing of advanced cathodes, including Ni‐rich and Li‐rich layered cathodes, spinel, olivine, and disordered rock‐salt materials. This review starts by discussing the structural degradation mechanisms caused by cation intermixing in different cathodes, focusing on the electronic structure, crystal structure, and electrode structure. Furthermore, the optimization strategies for effective inhibition of cation migration and rational utilization of cation mixing are systematically encapsulated. Last but not least, the remaining challenges and proposed perspectives are highlighted for the future development of advanced cathodes. The accurate analysis of cation migration using advanced characterization, precise control of material synthesis, and multi‐dimensional synergistic modification will be the key research areas for cation migration in cathodes. This review provides a comprehensive understanding of cation migration and intermixing in advanced cathodes. The effective inhibition of cation migration and the rational utilization of cation intermixing will emerge as pivotal and controllable factors for the further development of advanced cathodes.

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Layered Oxide Cathode Materials for Sodium-Ion Batteries: A Mini-Review

Gao,

Wang

2024

Energy Fuels

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Layered transition metal oxides (LTMOs) are considered promising cathode materials for sodium-ion batteries (SIBs) due to their high specific capacity and low cost, making them promising candidates for commercialization. This review focuses on the current state of research on the structure and performance of LTMOs beginning with an explanation of the structure characteristics of P-phase and O-phase cathode materials. Next, to address the issues faced by LTMOs, including irreversible phase transitions during charge−discharge processes, the imbalance between energy density and cycling stability, and poor air stability, three modification strategies, such as element doping, surface coating, and structure design are summarized. Additionally, research on the complementary manganese and oxygen redox chemistry was also elucidated. Finally, an outlook on the development trends and application prospects of LTMOs is proposed, aiming to promote further fundamental research and practical application of SIBs.

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Correlating concerted cations with oxygen redox in rechargeable batteries

Abstract: This review underscores the critical importance of oxygen redox and elucidates the precise commonalities of cations in regulating oxygen redox.

Cited by 4 publications

References 156 publications

Perspective on Phase Transition in Layered Oxide Cathodes for Sodium-Ion Batteries: Mechanism, Influenced Factors, and Inhibition Strategies

Perspective on Phase Transition in Layered Oxide Cathodes for Sodium-Ion Batteries: Mechanism, Influenced Factors, and Inhibition Strategies

Insights into Cation Migration and Intermixing in Advanced Cathode Materials for Lithium‐Ion Batteries

Layered Oxide Cathode Materials for Sodium-Ion Batteries: A Mini-Review

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