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author:

Lv, Jinsheng (Lv, Jinsheng.) [1] | Lai, Guobin (Lai, Guobin.) [2] | Yang, Tian (Yang, Tian.) [3] | Sun, Xiaotong (Sun, Xiaotong.) [4] | Liu, Feng (Liu, Feng.) [5] | Wu, Wenpeng (Wu, Wenpeng.) [6] | Shi, Mengfan (Shi, Mengfan.) [7] | Wang, Guantong (Wang, Guantong.) [8] | Gao, Kun (Gao, Kun.) [9] | Li, Xiangyang (Li, Xiangyang.) [10] | Chen, Nan (Chen, Nan.) [11]

Indexed by:

EI Scopus SCIE

Abstract:

Al-S batteries offer advantages such as high energy density, low cost, and good safety. However, they face challenges including poor sulfur conductivity, volume expansion, and slow kinetics of polysulfides, leading to rapid capacity decay and short cycle life. Therefore, the design of materials with high conductivity, capable of anchoring polysulfides, and structurally robust is crucial for enhancing the overall performance of Al-S batteries. To address these issues, we propose the construction of a structurally stable graphene-carbon nanotubes (CNTs) covalently bonded hybrid and a three-dimensional (3D) conductive framework catalyzed by Co active sites. The porous Co, N-doped graphene-carbon nanotubes (CoN-GC) hybrid with excellent mechanical properties provides sufficient space for high sulfur loading, alleviating sulfur volume expansion. Co plays a key role in rapidly transporting electrons, adsorbing, and catalyzing aluminum polysulfides. The Al-S battery using S@CoN-GC cycles over 1500 cycles at a current density of 300 mA center dot g-1,- 1 , maintaining a specific capacity of 315 mAh center dot g-- 1 , and retains 278 mAh center dot g-- 1 after 2000 cycles. Additionally, utilizing the outstanding mechanical properties of CoNGC, a flexible Al-S microbattery was successfully fabricated, maintaining a capacity retention of 90 % after folding 1000 times. These research findings are expected to accelerate the study of multivalent metal-sulfur batteries and their practical applications in various scenarios.

Keyword:

Al-S battery Flexible microbattery Graphene-CNTs covalently bonded hybrid Long cycle life

Community:

  • [ 1 ] [Lv, Jinsheng]Beijing Inst Technol, Sch Chem & Chem Engn, Key Lab Photoelect Electrophoton Convers Mat, Key Lab Cluster Sci,Minist Educ China, Beijing 100081, Peoples R China
  • [ 2 ] [Yang, Tian]Beijing Inst Technol, Sch Chem & Chem Engn, Key Lab Photoelect Electrophoton Convers Mat, Key Lab Cluster Sci,Minist Educ China, Beijing 100081, Peoples R China
  • [ 3 ] [Sun, Xiaotong]Beijing Inst Technol, Sch Chem & Chem Engn, Key Lab Photoelect Electrophoton Convers Mat, Key Lab Cluster Sci,Minist Educ China, Beijing 100081, Peoples R China
  • [ 4 ] [Wu, Wenpeng]Beijing Inst Technol, Sch Chem & Chem Engn, Key Lab Photoelect Electrophoton Convers Mat, Key Lab Cluster Sci,Minist Educ China, Beijing 100081, Peoples R China
  • [ 5 ] [Shi, Mengfan]Beijing Inst Technol, Sch Chem & Chem Engn, Key Lab Photoelect Electrophoton Convers Mat, Key Lab Cluster Sci,Minist Educ China, Beijing 100081, Peoples R China
  • [ 6 ] [Gao, Kun]Beijing Inst Technol, Sch Chem & Chem Engn, Key Lab Photoelect Electrophoton Convers Mat, Key Lab Cluster Sci,Minist Educ China, Beijing 100081, Peoples R China
  • [ 7 ] [Li, Xiangyang]Beijing Inst Technol, Sch Chem & Chem Engn, Key Lab Photoelect Electrophoton Convers Mat, Key Lab Cluster Sci,Minist Educ China, Beijing 100081, Peoples R China
  • [ 8 ] [Chen, Nan]Beijing Inst Technol, Sch Chem & Chem Engn, Key Lab Photoelect Electrophoton Convers Mat, Key Lab Cluster Sci,Minist Educ China, Beijing 100081, Peoples R China
  • [ 9 ] [Lv, Jinsheng]Beijing Inst Technol, Yangtze Delta Reg Acad, Jiaxing 314019, Peoples R China
  • [ 10 ] [Shi, Mengfan]Beijing Inst Technol, Yangtze Delta Reg Acad, Jiaxing 314019, Peoples R China
  • [ 11 ] [Chen, Nan]Beijing Inst Technol, Yangtze Delta Reg Acad, Jiaxing 314019, Peoples R China
  • [ 12 ] [Lv, Jinsheng]Beijing Inst Technol, Tangshan Res Inst, Tangshan 063000, Peoples R China
  • [ 13 ] [Shi, Mengfan]Beijing Inst Technol, Tangshan Res Inst, Tangshan 063000, Peoples R China
  • [ 14 ] [Chen, Nan]Beijing Inst Technol, Tangshan Res Inst, Tangshan 063000, Peoples R China
  • [ 15 ] [Lai, Guobin]Fuzhou Univ, Coll Mat Sci & Engn, Key Lab Ecomat Adv Technol, Fuzhou 350003, Peoples R China
  • [ 16 ] [Lai, Guobin]Chinese Acad Sci, State Key Lab Nonlinear Mech Inst Mech, Inst Mech, Beijing 100190, Peoples R China
  • [ 17 ] [Liu, Feng]Chinese Acad Sci, State Key Lab Nonlinear Mech Inst Mech, Inst Mech, Beijing 100190, Peoples R China
  • [ 18 ] [Wang, Guantong]Harbin Engn Univ, Coll Mech & Elect Engn, Harbin 150001, Peoples R China

Reprint 's Address:

  • [Lv, Jinsheng]Beijing Inst Technol, Sch Chem & Chem Engn, Key Lab Photoelect Electrophoton Convers Mat, Key Lab Cluster Sci,Minist Educ China, Beijing 100081, Peoples R China;;[Lv, Jinsheng]Beijing Inst Technol, Yangtze Delta Reg Acad, Jiaxing 314019, Peoples R China;;[Lv, Jinsheng]Beijing Inst Technol, Tangshan Res Inst, Tangshan 063000, Peoples R China;;

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Source :

CHEMICAL ENGINEERING JOURNAL

ISSN: 1385-8947

Year: 2024

Volume: 494

1 3 . 4 0 0

JCR@2023

Cited Count:

WoS CC Cited Count: 3

SCOPUS Cited Count: 3

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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