Ostwald‐Ripening Induced Interfacial Protection Layer Boosts 1,000,000‐Cycled Hydronium‐Ion Battery

Abstract Collapsing and degradation of active materials caused by the electrode/electrolyte interface instability in aqueous batteries are one of the main obstacles that mitigate the capacity. Herein by reversing the notorious side reactions include the loss and dissolution of electrode materials, as we applied Ostwald ripening (OR) in the electrochemical cycling of a copper hexacyanoferrate electrode in a hydronium‐ion batteries, the dissolved Cu and Fe ions undergo a crystallization process that creates a stable interface layer of cross‐linked cubes on the electrode surface. The layer exposed the low‐index crystal planes (100) and (110) through OR‐induced electrode particle growth, supplemented by vacancy–ordered (100) superlattices that facilitated ion migration. Our design stabilized the electrode–electrolyte interface considerably, achieving a cycle life of one million cycles with capacity retention of 91.6 %, and a capacity retention of 91.7 % after 3000 cycles for a full battery.

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Publication Details

Journal
Angewandte Chemie
Published
2024-09-13
DOI
https://doi.org/10.1002/ange.202414420
Primary Topic
Advancements in Battery Materials
Type
article
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article

Ostwald‐Ripening Induced Interfacial Protection Layer Boosts 1,000,000‐Cycled Hydronium‐Ion Battery

Jin‐Gyu Kim, Fuxi Liu, Xinyan Zhou, Wei Zhang et al.
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Angewandte Chemie
Advancements in Battery Materials
article

Ostwald‐Ripening Induced Interfacial Protection Layer Boosts 1,000,000‐Cycled Hydronium‐Ion Battery

Jin‐Gyu Kim, Fuxi Liu, Xinyan Zhou, Wei Zhang, Zhongjun Chen, Seung Jo Yoo, Yujin Li, Kexin Song, Jingjuan Li, Wenwen Li, Lin Li, Qing Liang, Zhenzhen Zhao, Weitao Zheng, Xu Zou, Chang Lu, Dong Wang
article en

Abstract

Abstract Collapsing and degradation of active materials caused by the electrode/electrolyte interface instability in aqueous batteries are one of the main obstacles that mitigate the capacity. Herein by reversing the notorious side reactions include the loss and dissolution of electrode materials, as we applied Ostwald ripening (OR) in the electrochemical cycling of a copper hexacyanoferrate electrode in a hydronium‐ion batteries, the dissolved Cu and Fe ions undergo a crystallization process that creates a stable interface layer of cross‐linked cubes on the electrode surface. The layer exposed the low‐index crystal planes (100) and (110) through OR‐induced electrode particle growth, supplemented by vacancy–ordered (100) superlattices that facilitated ion migration. Our design stabilized the electrode–electrolyte interface considerably, achieving a cycle life of one million cycles with capacity retention of 91.6 %, and a capacity retention of 91.7 % after 3000 cycles for a full battery.

Angewandte ChemieVol. 136(50)
Jilin University (CN), Chinese Academy of Sciences (CN), Institute of High Energy Physics (AT), Division of Materials Science and Engineering (AU), Institute of High Energy Physics (CN), Korea Basic Science Institute (KR), Jilin Agricultural Science and Technology University (CN), Jilin Agricultural University (CN), Jilin International Studies University (CN), Ametek (Germany) (DE)
Openalex Percentile: Top 87%
Advancements in Battery Materials
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