Air sensitivity of electrode materials in Li/Na ion batteries: Issues and strategies
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TL;DR: In this article , a review of the issues related to air exposure of electrode materials in Li/Na ion batteries, including factors related to the air sensitivity, degradation mechanisms, and recent progress in improving their air stability is presented.
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Abstract: With the development of electrode materials in lithium ion batteries—upgrading from LiCoO2 and LiFePO4 to Ni-rich layered oxides, and the shifting of battery systems from high cost lithium ion to low cost sodium ion technology, the air sensitivity of the electrode materials has become an increasingly important issue in both production and application. Furthermore, the air sensitivity of electrode materials must be carefully considered throughout nearly all stages of their life, including material design, synthesis, production, storage, packaging, transportation, and battery assembly. Therefore, a fundamental understanding of the air degradation mechanism of electrode materials and the exploration of new methods to enhance their air stability are of great significance for the development of batteries with better performance. Herein, we provide a review of the issues related to air exposure of electrode materials in Li/Na ion batteries, including factors related to air sensitivity, degradation mechanisms, and recent progress in improving their air stability. The merits and existing challenges of different strategies are presented, and a rational design perspective as well as general principles for evaluating air stability are proposed.
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Citations
Layered Oxide Cathodes for Sodium-Ion Batteries: Storage Mechanism, Electrochemistry, and Techno-economics
Yong Yang,Marie Diekmann +1 more
TL;DR: In this paper , the authors discuss the recent progress in the development of air-stable, electrochemically stable, and cost-effective NaxTMO2, with an emphasis on the cost, large-scale fabrication capability, and electrochemical performance.
178
Long‐Cycle‐Life Cathode Materials for Sodium‐Ion Batteries toward Large‐Scale Energy Storage Systems
TL;DR: In this article , a comprehensive discussion of the key points in SIBs toward large-scale applications is provided, and effective strategies are summarized from the recent progress on long-cycle-life and low-cost cathodes.
114
Layered oxide cathodes for sodium‐ion batteries: From air stability, interface chemistry to phase transition
Yi-Feng Liu,Kai Han,Dan Peng,Ling-yi Kong,Hong‐Wei Li,Hai-Yan Hu,Jiayun Li,Hongrui Wang,Zhiqiang Fu,Qiang Ma,Yan-Fang Zhu,Rui‐Ren Tang,Shulei Chou,Yao Xiao,Xiongwei Wu +14 more
TL;DR: In this paper , a comprehensive summary of mainstream modification strategies including chemical substitution, surface modification, structure modulation, and so forth, concentrating on how to improve air stability, reduce interfacial side reaction, and suppress phase transition for realizing high structural reversibility, fast Na+ kinetics, and superior comprehensive electrochemical performance.
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Structure evolution of layered transition metal oxide cathode materials for Na-ion batteries: Issues, mechanism and strategies
TL;DR: In this paper , a review summarizes surface and bulk structural evolution in air exposure and during cycling to reveal the relationship between structure evolution, charge transfer mechanisms and electrochemical performance, which is of great significance for designing advanced electrode materials.
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Routes to high-performance layered oxide cathodes for sodium-ion batteries.
Jingqiang Wang,Yan-Fang Zhu,Yu Su,Jun-Xu Guo,Shuang‐Qiang Chen,H. Liu,Shi-Xue Dou,Shulei Chou,Yao Xiao +8 more
TL;DR: High-performance layered oxide cathodes for sodium-ion batteries require addressing their intrinsic shortcomings, such as irreversible multiphase transition, poor air stability, and low energy density. Strategies to overcome these challenges include bulk phase modulation, surface/interface modification, functional structure manipulation, and cationic and anionic redox optimization.
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