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作者:

Du, Kai (Du, Kai.) | Liu, Yujie (Liu, Yujie.) | Zhao, Yiqi (Zhao, Yiqi.) | Li, Hui (Li, Hui.) | Liu, Hexiong (Liu, Hexiong.) | Sun, Chunhao (Sun, Chunhao.) | Han, Mingshan (Han, Mingshan.) | Ma, Tianyi (Ma, Tianyi.) | Hu, Yuxiang (Hu, Yuxiang.)

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摘要:

Aqueous aluminum ion batteries (AAIBs) hold significant potential for grid-scale energy storage owing to their intrinsic safety, high theoretical capacity, and abundance of aluminum. However, the strong electrostatic interactions and delayed charge compensation between high-charge-density aluminum ions and the fixed lattice in conventional cathodes impede the development of high-performance AAIBs. To address this issue, this work introduces, for the first time, high-entropy Prussian blue analogs (HEPBAs) as cathodes in AAIBs with unique lattice tolerance and efficient multipath electron transfer. Benefiting from the intrinsic long-range disorder and robust lattice strain field, HEPBAs enable the manifestation of the lattice respiration effect and minimize lattice volume changes, thereby achieving one of the best long-term stabilities (91.2% capacity retention after 10 000 cycles at 5.0 A g-1) in AAIBs. Additionally, the interaction between the diverse metal atoms generates a broadened d-band and reduced degeneracy compared with conventional Prussian blue and its analogs (PBAs), which enhances the electron transfer efficiency with one of the best rate performance (79.2 mAh g-1 at 5.0 A g-1) in AAIBs. Furthermore, exceptional element selectivity in HEPBAs with unique cocktail effect can facile tune electrochemical behavior. Overall, the newly developed HEPBAs with a high-entropy effect exhibit promising solutions for advancing AAIBs and multivalent-ion batteries. To overcome the inherent incompatibility between high-charge-density Al3+ and conventional cathode materials in AAIBs, this work proposes a novel family of high-entropy Prussian blue analogs (HEPBAs) with a unique lattice "respiration" characteristic and efficient multipath electron transfer. The optimized HEPBAs achieve one of the best long-term stabilities in AAIBs (91.2% capacity retention after 10 000 cycles at 5.0 A g-1). image

关键词:

lattice respiration high entropy material aqueous aluminum-ion battery

作者机构:

  • [ 1 ] [Du, Kai]Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Funct Mat, Educ Minist China, Beijing 100124, Peoples R China
  • [ 2 ] [Liu, Yujie]Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Funct Mat, Educ Minist China, Beijing 100124, Peoples R China
  • [ 3 ] [Zhao, Yiqi]Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Funct Mat, Educ Minist China, Beijing 100124, Peoples R China
  • [ 4 ] [Liu, Hexiong]Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Funct Mat, Educ Minist China, Beijing 100124, Peoples R China
  • [ 5 ] [Sun, Chunhao]Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Funct Mat, Educ Minist China, Beijing 100124, Peoples R China
  • [ 6 ] [Han, Mingshan]Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Funct Mat, Educ Minist China, Beijing 100124, Peoples R China
  • [ 7 ] [Hu, Yuxiang]Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Funct Mat, Educ Minist China, Beijing 100124, Peoples R China
  • [ 8 ] [Li, Hui]RMIT Univ, Sch Sci, Melbourne, Vic 3000, Australia
  • [ 9 ] [Ma, Tianyi]RMIT Univ, Sch Sci, Melbourne, Vic 3000, Australia

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来源 :

ADVANCED MATERIALS

ISSN: 0935-9648

年份: 2024

期: 30

卷: 36

2 9 . 4 0 0

JCR@2022

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SCOPUS被引频次: 26

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