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author:

Xiao, Yuanbin (Xiao, Yuanbin.) [1] | Wang, Xiaofeng (Wang, Xiaofeng.) [2] | Yang, Kang (Yang, Kang.) [3] | Wu, Jianyang (Wu, Jianyang.) [4] | Chao, Yu (Chao, Yu.) [5] | Xi, Chenpeng (Xi, Chenpeng.) [6] | Li, Mengchao (Li, Mengchao.) [7] | Zhang, Qiaoli (Zhang, Qiaoli.) [8] | Liu, Zheyuan (Liu, Zheyuan.) [9] (Scholars:刘哲源) | Li, Liuyi (Li, Liuyi.) [10] (Scholars:李留义) | Yu, Yan (Yu, Yan.) [11] (Scholars:于岩) | Yang, Chengkai (Yang, Chengkai.) [12]

Indexed by:

EI Scopus SCIE

Abstract:

Electrolyte plays a dominant role in solving the various challenges of Li-metal batteries (LMBs). The complex competition coordination and diversity of the anion coordination clusters in electrolytes are still unclear. In this paper, an anion-dominated dynamic coordination field (ADCF) theory is proposed to reasonably explain the coordination behavior in the high-concentration, localized high-concentration, and weak-ionization localized high-concentration electrolytes, which is based on specific characterizations and theoretical calculations. The novel model selects the anions as the center of the whole molecular groups/clusters, while the Li+ acts as the counterion or carrier, which can promote the dynamic and elastic movement of the whole cluster. The specific coordination clusters could remarkably enhance the interaction between TFSI- and Li+, and make the counterion composition of Li+ increase. The confinement effect of the coordination field provides a difficult ionization atmosphere for the Li+, and enables clusters to preferentially adsorb on the Li surface, and construct a specific solid electrolyte interphase (SEI). Furthermore, the electrode/electrolyte interface kinetics and the growth of lithium dendrites are systematically investigated. These new viewpoints of coordination behavior provide inclusive strategies in the electrolyte design, and promote further research of the charge transfer or solution behavior.

Keyword:

Ab initio molecular dynamics Anion-dominated coordination clusters Anion-dominated dynamic coordination field Electrode interfaces Lithium batteries

Community:

  • [ 1 ] [Xiao, Yuanbin]Fuzhou Univ, Coll Mat Sci & Engn, Key Lab Adv Mat Technol Int Hong Kong Macao & Taiw, Joint Lab Adv Mat Technol, Fuzhou 350108, Fujian, Peoples R China
  • [ 2 ] [Wang, Xiaofeng]Fuzhou Univ, Coll Mat Sci & Engn, Key Lab Adv Mat Technol Int Hong Kong Macao & Taiw, Joint Lab Adv Mat Technol, Fuzhou 350108, Fujian, Peoples R China
  • [ 3 ] [Yang, Kang]Fuzhou Univ, Coll Mat Sci & Engn, Key Lab Adv Mat Technol Int Hong Kong Macao & Taiw, Joint Lab Adv Mat Technol, Fuzhou 350108, Fujian, Peoples R China
  • [ 4 ] [Chao, Yu]Fuzhou Univ, Coll Mat Sci & Engn, Key Lab Adv Mat Technol Int Hong Kong Macao & Taiw, Joint Lab Adv Mat Technol, Fuzhou 350108, Fujian, Peoples R China
  • [ 5 ] [Xi, Chenpeng]Fuzhou Univ, Coll Mat Sci & Engn, Key Lab Adv Mat Technol Int Hong Kong Macao & Taiw, Joint Lab Adv Mat Technol, Fuzhou 350108, Fujian, Peoples R China
  • [ 6 ] [Li, Mengchao]Fuzhou Univ, Coll Mat Sci & Engn, Key Lab Adv Mat Technol Int Hong Kong Macao & Taiw, Joint Lab Adv Mat Technol, Fuzhou 350108, Fujian, Peoples R China
  • [ 7 ] [Zhang, Qiaoli]Fuzhou Univ, Coll Mat Sci & Engn, Key Lab Adv Mat Technol Int Hong Kong Macao & Taiw, Joint Lab Adv Mat Technol, Fuzhou 350108, Fujian, Peoples R China
  • [ 8 ] [Liu, Zheyuan]Fuzhou Univ, Coll Mat Sci & Engn, Key Lab Adv Mat Technol Int Hong Kong Macao & Taiw, Joint Lab Adv Mat Technol, Fuzhou 350108, Fujian, Peoples R China
  • [ 9 ] [Li, Liuyi]Fuzhou Univ, Coll Mat Sci & Engn, Key Lab Adv Mat Technol Int Hong Kong Macao & Taiw, Joint Lab Adv Mat Technol, Fuzhou 350108, Fujian, Peoples R China
  • [ 10 ] [Yu, Yan]Fuzhou Univ, Coll Mat Sci & Engn, Key Lab Adv Mat Technol Int Hong Kong Macao & Taiw, Joint Lab Adv Mat Technol, Fuzhou 350108, Fujian, Peoples R China
  • [ 11 ] [Yang, Chengkai]Fuzhou Univ, Coll Mat Sci & Engn, Key Lab Adv Mat Technol Int Hong Kong Macao & Taiw, Joint Lab Adv Mat Technol, Fuzhou 350108, Fujian, Peoples R China
  • [ 12 ] [Wu, Jianyang]Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China

Reprint 's Address:

  • [Yang, Chengkai]Fuzhou Univ, Coll Mat Sci & Engn, Key Lab Adv Mat Technol Int Hong Kong Macao & Taiw, Joint Lab Adv Mat Technol, Fuzhou 350108, Fujian, Peoples R China;;

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Source :

ENERGY STORAGE MATERIALS

ISSN: 2405-8297

Year: 2022

Volume: 55

Page: 773-781

2 0 . 4

JCR@2022

1 8 . 9 0 0

JCR@2023

ESI Discipline: MATERIALS SCIENCE;

ESI HC Threshold:91

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 38

SCOPUS Cited Count: 36

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

Affiliated Colleges:

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