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作者:

Su, Jingwen (Su, Jingwen.) | Zhang, Meng (Zhang, Meng.) | Tian, Hao (Tian, Hao.) | Han, Mingshan (Han, Mingshan.) | Sun, Zhaopeng (Sun, Zhaopeng.) | Du, Kai (Du, Kai.) | Cui, Fangyan (Cui, Fangyan.) | Li, Jingzhen (Li, Jingzhen.) | Huang, Weiwei (Huang, Weiwei.) | Hu, Yuxiang (Hu, Yuxiang.)

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EI Scopus SCIE

摘要:

Rechargeable aqueous aluminum batteries (AABs) are promising energy storage technologies owing to their high safety and ultra-high energy-to-price ratio. However, either the strong electrostatic forces between high-charge-density Al3+ and host lattice, or sluggish large carrier-ion diffusion toward the conventional inorganic cathodes generates inferior cycling stability and low rate-capacity. To overcome these inherent confinements, a series of promising redox-active organic materials (ROMs) are investigated and a pi-conjugated structure ROMs with synergistic C= O and C= N groups is optimized as the new cathode in AABs. Benefiting from the joint utilization of multi-redox centers and rich pi-pi intermolecular interactions, the optimized ROMs with unique ion coordination storage mechanism facilely accommodate complex active ions with mitigated coulombic repulsion and robust lattice structure, which is further validated via theoretical simulations. Thus, the cathode achieves enhanced rate performance (153.9 mAh g(-1) at 2.0 A g(-1)) and one of the best long-term stabilities (125.7 mAh g(-1) after 4,000 cycles at 1.0 A g(-1)) in AABs. Via molecular exploitation, this work paves the new direction toward high-performance cathode materials in aqueous multivalent-ion battery systems.

关键词:

pi-conjugated organic cathode aqueous aluminum batteries synergistically active sites long-term stability

作者机构:

  • [ 1 ] [Su, Jingwen]Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Funct Mat, Minist Educ, Beijing 100124, Peoples R China
  • [ 2 ] [Han, Mingshan]Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Funct Mat, Minist Educ, Beijing 100124, Peoples R China
  • [ 3 ] [Du, Kai]Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Funct Mat, Minist Educ, Beijing 100124, Peoples R China
  • [ 4 ] [Cui, Fangyan]Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Funct Mat, Minist Educ, Beijing 100124, Peoples R China
  • [ 5 ] [Hu, Yuxiang]Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Funct Mat, Minist Educ, Beijing 100124, Peoples R China
  • [ 6 ] [Zhang, Meng]Yanshan Univ, Hebei Key Lab Appl Chem, Qinhuangdao 066004, Peoples R China
  • [ 7 ] [Tian, Hao]Yanshan Univ, Hebei Key Lab Appl Chem, Qinhuangdao 066004, Peoples R China
  • [ 8 ] [Sun, Zhaopeng]Yanshan Univ, Hebei Key Lab Appl Chem, Qinhuangdao 066004, Peoples R China
  • [ 9 ] [Huang, Weiwei]Yanshan Univ, Hebei Key Lab Appl Chem, Qinhuangdao 066004, Peoples R China
  • [ 10 ] [Li, Jingzhen]Beijing Univ Technol, Fac Informat Technol, Key Lab Optoelect Technol, Minist Educ, Beijing 100124, Peoples R China

通讯作者信息:

  • [Hu, Yuxiang]Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Funct Mat, Minist Educ, Beijing 100124, Peoples R China;;[Huang, Weiwei]Yanshan Univ, Hebei Key Lab Appl Chem, Qinhuangdao 066004, Peoples R China;;[Li, Jingzhen]Beijing Univ Technol, Fac Informat Technol, Key Lab Optoelect Technol, Minist Educ, Beijing 100124, Peoples R China

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来源 :

SMALL

ISSN: 1613-6810

年份: 2024

期: 29

卷: 20

1 3 . 3 0 0

JCR@2022

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WoS核心集被引频次:

SCOPUS被引频次: 6

ESI高被引论文在榜: 0 展开所有

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