A Disordered Rubik's Cube‐Inspired Framework for Sodium‐Ion Batteries with Ultralong Cycle Lifespan. (2nd January 2023)

• Record Type: Journal Article
• Authors: Peng, Jian; Zhang, Bao; Hua, Weibo; Liang, Yaru; Zhang, Wang; Du, Yumeng; Peleckis, Germanas; Indris, Sylvio; Gu, Qinfen; Cheng, Zhenxiang; Wang, Jiazhao; Liu, Huakun; Dou, Shixue; Chou, Shulei
• Is Part Of: Angewandte Chemie. Volume 135:Number 6(2023)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2023-01-02
• Subjects: High Entropy -- Long Lifespan -- Prussian Blue Analogs -- Sodium-Ion Batteries; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.202215865
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: Sodium‐ion batteries (SIBs) with fast‐charge capability and long lifespan could be applied in various sustainable energy storage systems, from personal devices to grid storage. Inspired by the disordered Rubik's cube, here, we report that the high‐entropy (HE) concept can lead to a very substantial improvement in the sodium storage properties of hexacyanoferrate (HCF). An example of HE‐HCF has been synthesized as a proof of concept, which has achieved impressive cycling stability over 50 000 cycles and an outstanding fast‐charging capability up to 75 C. Remarkable air stability and all‐climate performance are observed. Its quasi‐zero‐strain reaction mechanism and high sodium diffusion coefficient have been measured and analyzed by multiple in situ techniques and density functional theory calculations. This strategy provides new insights into the development of advanced electrodes and provides the opportunity to tune electrochemical performance by tailoring the atomic composition. Abstract : Sodium‐ion batteries with fast‐charge capability and long lifespan could be applied in various sustainable energy storage systems, from personal devices to grid storage. Inspired by the disordered Rubik's cube, herein, Peng et al. report that the high‐entropy concept can lead to a very substantial improvement in the sodium storage properties of hexacyanoferrate. which has achieved impressive cycling stability over 50 000 cycles