Toward Ultrahigh Rate and Cycling Performance of Cathode Materials of Sodium Ion Battery by Introducing a Bicontinuous Porous Structure

Chen Tang; Wei Lu; Yixiao Zhang; Wenwei Zhang; Congcong Cui; Pan Liu; Lu Han; Xiaoshi Qian; Liwei Chen; Fugui Xu; Yiyong Mai

doi:10.1002/adma.202402005

Toward Ultrahigh Rate and Cycling Performance of Cathode Materials of Sodium Ion Battery by Introducing a Bicontinuous Porous Structure

Adv Mater. 2024 Apr 10:e2402005. doi: 10.1002/adma.202402005. Online ahead of print.

Authors

Chen Tang¹, Wei Lu², Yixiao Zhang¹, Wenwei Zhang³, Congcong Cui⁴, Pan Liu⁵, Lu Han⁴, Xiaoshi Qian², Liwei Chen¹, Fugui Xu¹, Yiyong Mai¹

Affiliations

¹ School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Key Laboratory of Green and High-End Utilization of Salt Lake Resources (Chinese Academy of Sciences), In-situ Center for Physical Sciences, and Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China.
² School of Mechanical Engineering, State Key Laboratory of Mechanical System and Vibration, Interdisciplinary Research Center, Institute of Refrigeration and Cryogenics, and MOE Key Laboratory for Power Machinery and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China.
³ State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China.
⁴ School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China.
⁵ School of Materials Science and Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China.

PMID: 38598862
DOI: 10.1002/adma.202402005

Abstract

The emerging sodium-ion batteries (SIBs) are one of the most promising candidates expected to complement lithium-ion batteries and diversify the battery market. However, the exploitation of cathode materials with high-rate performance and long-cycle stability for SIBs has remained one of the major challenges. To this end, an efficient approach to enhance rate and cycling performance by introducing an ordered bicontinuous porous structure into cathode materials of SIBs is demonstrated. Prussian blue analogues (PBAs) are selected because they are recognized as a type of most promising SIB cathode materials. Thanks to the presence of 3D continuous channels enabling fast Na⁺ ions diffusion as well as the intrinsic mechanical stability of bicontinuous architecture, the resultant PBAs exhibit excellent rate capability (80 mAh g^-1 at 2.5 A g^-1) and ultralong cycling life (>3000 circulations at 0.5 A g^-1), reaching the top performance of the reported PBA-based cathode materials. This study opens a new avenue for boosting sluggish ion diffusion kinetics in electrodes of rechargeable batteries and also provides a new paradigm for solving the dilemma that electrodes' failure due to high-stress concentration upon ion storage.

Keywords: bicontinuous structure; cathode materials; cycle life; rate capability; sodium‐ion battery.

Abstract

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