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Enabling long cycle aluminum-sulfur batteries via structurally stable Co, N-doped graphene-CNTs covalently bonded hybrid

文献类型：期刊论文

作者Lv, Jinsheng4,5,6; Lai, Guobin2,3; Yang, Tian6; Sun, Xiaotong6; Liu, Feng2; Wu, Wenpeng6; Shi, Mengfan4,5,6; Wang, Guantong1; Gao, Kun6; Li, Xiangyang6
刊名CHEMICAL ENGINEERING JOURNAL
出版日期2024-08-15
卷号494页码:10
关键词Al-S battery Graphene-CNTs covalently bonded hybrid Long cycle life Flexible microbattery
ISSN号1385-8947
DOI10.1016/j.cej.2024.152811
通讯作者Lv, Jinsheng()
英文摘要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.
资助项目National Natural Science Foundation of China[22279010] ; National Natural Science Foundation of China[21671020] ; Hebei Natural Science Foundation[B2023105029] ; Natural Science Foundation of Beijing Municipality[2222075] ; Analysis & Testing Center, Beijing Institute of Technology
WOS研究方向Engineering
语种英语
WOS记录号WOS:001333617100001
资助机构National Natural Science Foundation of China ; Hebei Natural Science Foundation ; Natural Science Foundation of Beijing Municipality ; Analysis & Testing Center, Beijing Institute of Technology
源URL[http://dspace.imech.ac.cn/handle/311007/97002]  
专题力学研究所_非线性力学国家重点实验室
通讯作者Lv, Jinsheng
作者单位1.Harbin Engn Univ, Coll Mech & Elect Engn, Harbin 150001, Peoples R China
2.Chinese Acad Sci, State Key Lab Nonlinear Mech Inst Mech, Inst Mech, Beijing 100190, Peoples R China
3.Fuzhou Univ, Coll Mat Sci & Engn, Key Lab Ecomat Adv Technol, Fuzhou 350003, Peoples R China
4.Beijing Inst Technol, Tangshan Res Inst, Tangshan 063000, Peoples R China
5.Beijing Inst Technol, Yangtze Delta Reg Acad, Jiaxing 314019, Peoples R China
6.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
推荐引用方式
GB/T 7714		 Lv, Jinsheng,Lai, Guobin,Yang, Tian,et al. Enabling long cycle aluminum-sulfur batteries via structurally stable Co, N-doped graphene-CNTs covalently bonded hybrid[J]. CHEMICAL ENGINEERING JOURNAL,2024,494:10.
APA Lv, Jinsheng.,Lai, Guobin.,Yang, Tian.,Sun, Xiaotong.,Liu, Feng.,...&刘峰.(2024).Enabling long cycle aluminum-sulfur batteries via structurally stable Co, N-doped graphene-CNTs covalently bonded hybrid.CHEMICAL ENGINEERING JOURNAL,494,10.
MLA Lv, Jinsheng,et al."Enabling long cycle aluminum-sulfur batteries via structurally stable Co, N-doped graphene-CNTs covalently bonded hybrid".CHEMICAL ENGINEERING JOURNAL 494(2024):10.

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来源：力学研究所

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