Decoupling the air sensitivity of Na-layered oxides
Air sensitivity remains a substantial barrier to the commercialization of sodium (Na)-layered oxides (NLOs). This problem has puzzled the community for decades because of the complexity of interactions between air components and their impact on both bulk and surfaces of NLOs. We show here that water vapor plays a pivotal role in initiating destructive acid and oxidative degradations of NLOs only when coupled with carbon dioxide or oxygen, respectively. Quantification analysis revealed that reducing the defined cation competition coefficient (η), which integrates the effects of ionic potential and sodium content, and increasing the particle size can enhance the resistance to acid attack, whereas using high-potential redox couples can eliminate oxidative degradation. These findings elucidate the underlying air deterioration mechanisms and rationalize the design of air-stable NLOs.
Authors
- Xiaohui Rong (ORCID: https://orcid.org/0000-0002-9786-4424)
- Ruijuan Xiao (ORCID: https://orcid.org/0000-0003-0930-9576)
- Junmei Zhao (ORCID: https://orcid.org/0000-0001-6809-5032)
- Juping Xu (ORCID: https://orcid.org/0000-0002-9576-8391)
- Zaifa Wang (ORCID: https://orcid.org/0009-0005-8270-7943)
- Feixiang Ding (ORCID: https://orcid.org/0000-0002-4028-6141)
- Yaoshen Niu (ORCID: https://orcid.org/0000-0003-0130-5810)
- Yaxiang Lu (ORCID: https://orcid.org/0000-0001-5202-175X)
- Congcong Du (ORCID: https://orcid.org/0000-0003-2859-9601)
- Yong‐Sheng Hu (ORCID: https://orcid.org/0000-0002-8430-6474)
- Liquan Chen (ORCID: https://orcid.org/0000-0002-6557-1213)
- Siyuan Wu (ORCID: https://orcid.org/0000-0001-9220-4956)
- Qinghua Zhang (ORCID: https://orcid.org/0000-0001-9086-7000)
- Xiaowei Li (ORCID: https://orcid.org/0000-0003-2032-4742)
- Yang Yang (ORCID: https://orcid.org/0000-0003-4150-8110)
- Jianyu Huang (ORCID: https://orcid.org/0000-0002-8424-5368)
- Xinyan Li (ORCID: https://orcid.org/0000-0002-3005-0151)
- Xuefeng Wang (ORCID: https://orcid.org/0000-0001-9666-8942)
- Wen Hui Yin (ORCID: https://orcid.org/0000-0002-7110-9471)
- Xubin Wang (ORCID: https://orcid.org/0009-0002-2409-2790)
- Daniel Kuok Ho Tang (ORCID: https://orcid.org/0009-0002-5582-9046)
- Nian Zhang (ORCID: https://orcid.org/0000-0002-9124-6553)
- Xiao Zhang (ORCID: https://orcid.org/0009-0002-9537-8120)
Institutions
- Chinese Academy of Sciences (CN)
- Yanshan University (CN)
- Yangtze River Delta Physics Research Center (China) (CN)
- China Spallation Neutron Source (CN)
- Institute of Process Engineering (CN)
- Shanghai Institute of Microsystem and Information Technology (CN)
- Institute of Physics (CN)
- University of Chinese Academy of Sciences (CN)
Publication Details
- Journal
- Science
- Published
- 2024-08-15
- DOI
- https://doi.org/10.1126/science.adm9223
- Citations
- 201
- Primary Topic
- Advancements in Battery Materials
- Type
- article
- Field-Weighted Citation Impact
- 41.95