Unlocking Air Stability in Defect-Free Na-Ion Layered Oxide Cathodes via Ultrafast Synthesis

The industrialization of O3-type cathodes for sodium-ion batteries (SIBs) is hindered by a critical vulnerability─severe air sensitivity, which causes irreversible structural degradation and performance decay upon exposure. Herein, we employ a high-temperature shock (HTS) synthesis process (>800 °C s–1) governed by kinetic control. This ultrafast method suppresses the formation of impurities (like Na/Ni anti-sites and NiO phases), yielding a nearly defect-free lamellar framework. The resulting material exhibits intrinsic air stability stemming from its lattice integrity. This inherent stability prevents corrosion without extrinsic modifications, demonstrated by its retention of electrochemical performance even after direct water immersion. Consequently, this enables low-cost, environmentally benign aqueous electrode processing. The material retains approximately 70% of its capacity after 1500 cycles at a 2C rate, highlighting the HTS strategy as a broadly applicable pathway for the scalable manufacturing of air-stable cathodes.

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Publication Details

Journal
ACS Energy Letters
Published
2025-10-16
DOI
https://doi.org/10.1021/acsenergylett.5c02679
Citations
4
Primary Topic
Advancements in Battery Materials
Type
article
Field-Weighted Citation Impact
2.92
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article

Unlocking Air Stability in Defect-Free Na-Ion Layered Oxide Cathodes via Ultrafast Synthesis

Zhedong Liu, Jingchao Zhang, Haoran Jiang, Wei‐Di Liu et al.
4 citations
ACS Energy Letters
Advancements in Battery Materials
2.92
article

Unlocking Air Stability in Defect-Free Na-Ion Layered Oxide Cathodes via Ultrafast Synthesis

Zhedong Liu, Jingchao Zhang, Haoran Jiang, Wei‐Di Liu, Wenbin Hu, Jiawei Luo, Renjie Xue, Li Chen, Jinfeng Zhang, Rui Liu, Zekun Li, Yanan Chen, Zhikai Miao, Chunying Wang, Pengfei Huang, Zhaoxin Guo, Xiaoqi Ye
article en
4 citations

Abstract

The industrialization of O3-type cathodes for sodium-ion batteries (SIBs) is hindered by a critical vulnerability─severe air sensitivity, which causes irreversible structural degradation and performance decay upon exposure. Herein, we employ a high-temperature shock (HTS) synthesis process (>800 °C s–1) governed by kinetic control. This ultrafast method suppresses the formation of impurities (like Na/Ni anti-sites and NiO phases), yielding a nearly defect-free lamellar framework. The resulting material exhibits intrinsic air stability stemming from its lattice integrity. This inherent stability prevents corrosion without extrinsic modifications, demonstrated by its retention of electrochemical performance even after direct water immersion. Consequently, this enables low-cost, environmentally benign aqueous electrode processing. The material retains approximately 70% of its capacity after 1500 cycles at a 2C rate, highlighting the HTS strategy as a broadly applicable pathway for the scalable manufacturing of air-stable cathodes.

ACS Energy LettersVol. 10(11)
Queensland University of Technology (AU), Tianjin University (CN), Shanghai Institute of Ceramics (CN), National Power (United Kingdom) (GB), Shandong University of Science and Technology (CN)
Openalex Percentile: Top 8%
Advancements in Battery Materials
2.92
DOISourceOpenAlex
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