Layered buserite Mg-Mn oxide cathode for aqueous rechargeable Mg-ion battery

Caiyun Sun; Hailian Wang; Feixiang Yang; Aitao Tang; Guangsheng Huang; Lingjie Li; Zhongting Wang; Baihua Qu; Chaohe Xu; Shuangshuang Tan; Xiaoyuan Zhou; Jingfeng Wang; Fusheng Pan

Journal of Magnesium and Alloys (Mar 2023)

Layered buserite Mg-Mn oxide cathode for aqueous rechargeable Mg-ion battery

Caiyun Sun,
Hailian Wang,
Feixiang Yang,
Aitao Tang,
Guangsheng Huang,
Lingjie Li,
Zhongting Wang,
Baihua Qu,
Chaohe Xu,
Shuangshuang Tan,
Xiaoyuan Zhou,
Jingfeng Wang,
Fusheng Pan

Affiliations

Caiyun Sun: College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China; National Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
Hailian Wang: College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China; National Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
Feixiang Yang: College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China; National Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
Aitao Tang: College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China; National Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
Guangsheng Huang: College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China; National Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China; Corresponding authors at: College of Materials Science and Engineering, Chongqing University, Chongqing 400044, PR China.
Lingjie Li: National Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China; College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
Zhongting Wang: College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China; National Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
Baihua Qu: College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China; National Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
Chaohe Xu: National Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China; College of Aerospace Engineering, Chongqing University, Chongqing 400044, China
Shuangshuang Tan: College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China; National Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China; Corresponding authors at: College of Materials Science and Engineering, Chongqing University, Chongqing 400044, PR China.
Xiaoyuan Zhou: College of Physics, Chongqing University, Chongqing, 401331, China
Jingfeng Wang: College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China; National Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
Fusheng Pan: College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China; National Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China; Corresponding authors at: College of Materials Science and Engineering, Chongqing University, Chongqing 400044, PR China.

Journal volume & issue: Vol. 11, no. 3
pp. 840 – 850

Abstract

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Owing to the features (high safety, inexpensive and environmental friendliness) of aqueous rechargeable Mg-ion batteries (ARMIBs), they have drawn extensive attention in the future energy storage systems. However, the poor Mg2+ migration kinetics during the Mg2+ intercalation/extraction still hinders the progress of developing suitable cathode materials. Herein, a layered buserite Mg-Mn oxide (MMO) material with large interlayer space (∼9.70 Å) and low-crystalline structure is studied as a high-performance cathode in ARMIBs. Compared with the counterpart, the Mg2+ migration kinetics of the MMO cathode can be enhanced by its unique structure (bigger interlayer spacing and low-crystalline structure). The layered buserite MMO as a high-performance ARMIBs cathode exhibits high Mg storage capacity (50 mA g−1: 169.3 mAh g−1), excellent rate capability (1000 mA g−1: 98.3 mAh g−1), and fast Mg2+ migration (an average diffusion coefficient: ∼4.21 × 10−10 cm2 s−1) in 0.5 M MgCl2 aqueous electrolyte. Moreover, the MMO-1//AC full battery achieved a high discharge capacity (100 mA g−1: 111 mAh g−1), and an ignored fading over 5000 cycles (1000 mA g−1). Therefore, layered Mg-Mn oxide with large interlayer space may break a new path to develop the promising ARMIBs.

Published in Journal of Magnesium and Alloys

ISSN: 2213-9567 (Online)
Publisher: KeAi Communications Co., Ltd.
Country of publisher: China
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.keaipublishing.com/en/journals/journal-of-magnesium-and-alloys/

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