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Confined Iterative Self-Assembly of Ultrathick Freestanding Electrodes with Vertically Aligned Channels for High Areal Capacity Sodium-Ion Batteries

文献类型：期刊论文

作者Zheng, Shumin1; Feng, Dan1; Xu, Lekai1; Du, Jiang2; Li, Bao3; Wang, Bao1
刊名ACS MATERIALS LETTERS
出版日期2022-02-07
卷号4期号:2页码:432-439
DOI10.1021/acsmaterialslett.1c00806
英文摘要Electrodes with a high areal capacity are critical for developing high-energy-density sodium-ion batteries (SIBs). The free-standing thick electrode is a promising candidate among the state-of-art electrodes, since it has the advantages of high areal mass, binder-free, current-collector-free, and no carbon additive; thus, the whole mass of the electrode is an active material that can contribute to capacity. However, enhancing areal density by introducing thick electrodes impinges on the transport of charge carriers including ions and electrons. Here we designed and synthesized an ultrathick (1500 mu m) free-standing foam, which is a carbon framework with 1T-MoS2 nanosheets embedded in the vertically aligned channel wall. To tune the areal mass and morphology of the as-obtained foam, a confined iterative self-assembly strategy was proposed. The Na+ storage behavior was studied by using the as-obtained foam as a free-standing electrode against Na metal. Consequently, it displays good cycle stability even with a high areal mass of 20.74 mg cm(-2) and delivers an astonishing reversible areal capacity of 19.75 mAh cm(-2) at 0.01 A g(-1), which greatly exceeds that of most sodium storage materials. The proposed confined iterative self-assembly strategy for fabricating thick electrodes opens new avenues for high areal capacity batteries.
WOS关键词HIGH-ENERGY ; NANOSHEETS ; ANODES ; LITHIUM ; STORAGE
资助项目100 Talents Program of Chinese Academy of Sciences, National Natural Science Foundation of China[52172250] ; 100 Talents Program of Chinese Academy of Sciences, National Natural Science Foundation of China[51772296] ; 100 Talents Program of Chinese Academy of Sciences, National Natural Science Foundation of China[52174387]
WOS研究方向Materials Science
语种英语
WOS记录号WOS:000763599100022
出版者AMER CHEMICAL SOC
资助机构100 Talents Program of Chinese Academy of Sciences, National Natural Science Foundation of China
源URL[http://ir.ipe.ac.cn/handle/122111/52475]  
专题中国科学院过程工程研究所
通讯作者Du, Jiang; Li, Bao; Wang, Bao
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450001, Peoples R China
3.Henan Normal Univ, Collaborat Innovat Ctr Henan Prov Green Mfg Fine, Key Lab Green Chem Media & React, Minist Educ,Sch Chem & Chem Engn, Xinxiang 453007, Henan, Peoples R China
推荐引用方式
GB/T 7714		 Zheng, Shumin,Feng, Dan,Xu, Lekai,et al. Confined Iterative Self-Assembly of Ultrathick Freestanding Electrodes with Vertically Aligned Channels for High Areal Capacity Sodium-Ion Batteries[J]. ACS MATERIALS LETTERS,2022,4(2):432-439.
APA Zheng, Shumin,Feng, Dan,Xu, Lekai,Du, Jiang,Li, Bao,&Wang, Bao.(2022).Confined Iterative Self-Assembly of Ultrathick Freestanding Electrodes with Vertically Aligned Channels for High Areal Capacity Sodium-Ion Batteries.ACS MATERIALS LETTERS,4(2),432-439.
MLA Zheng, Shumin,et al."Confined Iterative Self-Assembly of Ultrathick Freestanding Electrodes with Vertically Aligned Channels for High Areal Capacity Sodium-Ion Batteries".ACS MATERIALS LETTERS 4.2(2022):432-439.

入库方式： OAI收割

来源：过程工程研究所

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