Appropriately hydrophilic/hydrophobic cathode enables high-performance aqueous zinc-ion batteries

doi:10.1016/j.ensm.2020.05.021

IMR OpenIR

	Appropriately hydrophilic/hydrophobic cathode enables high-performance aqueous zinc-ion batteries
	Zhang, Xiaotan 1; Li, Jiangxu 2; Ao, Huaisheng 1; Liu, Dongyan 3; Shi, Lei 4,5; Wang, Chengming 4,5; Zhu, Yongchun 1,4,5; Qian, Yitai 1,4,5
通讯作者	Zhu, Yongchun(ychzhu@ustc.edu.cn)
	2020-09-01
发表期刊	ENERGY STORAGE MATERIALS
ISSN	2405-8297
卷号	30 页码:337-345
摘要	Organic batteries with improved electrode wettability will exhibit a better electrochemical performance. How about the relationship between electrode wettability and battery performance in aqueous batteries? Here the effect of cathode wettability in aqueous zinc-ion batteries (AZIBs) on the zinc-ion diffusion and charge transfer based on a research platform of cellulose nanowhiskers (CNWs)/graphene/MnO2 wire-in-scroll nanowires with water contact angles turning from 64.70 +/- 3.72 degrees to 115.85 +/- 3.36 degrees as cathodes for AZIBs has been investigated, where the corresponding battery performance shows a parabola trend with the peak in 103.04 +/- 2.91 degrees. The cathode achieves a high capacity of 384 mAh g(-1) at 1 C and features an ultra-long lifetime of over 5000 cycles at 20 C, representing excellent Zn storage performance. A combination of experimental measurements and density functional theory calculations suggests that increased cathode hydrophobicity forces hydrated Zn2+ desolvation at electrode-electrolyte interface, facilitating zinc-ion insertion into host materials, yet extremely hydrophobic cathode leads to sluggish electrochemical kinetics. This study opens a new idea in the design of promising candidates for developing low cost and long lifespan batteries for aqueous systems.
关键词	Cellulose nanowhiskers Graphene Cathode wettability Electrochemical kinetics Aqueous zinc-ion battery
资助者	National Key Research and Development Program of China ; National Natural Science Fund of China
DOI	10.1016/j.ensm.2020.05.021
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2017YFA0206703] ; National Key Research and Development Program of China[2016YFB0901503] ; National Natural Science Fund of China[21875238] ; National Natural Science Fund of China[21521001]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
WOS类目	Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000544760400007
出版者	ELSEVIER
引用统计	被引频次：80[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/139724
专题	中国科学院金属研究所
通讯作者	Zhu, Yongchun
作者单位	1.Univ Sci & Technol China, Dept Appl Chem, Hefei 230026, Anhui, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 4.Univ Sci & Technol China, Dept Chem, Hefei 230026, Anhui, Peoples R China 5.Univ Sci & Technol China, Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xiaotan,Li, Jiangxu,Ao, Huaisheng,et al. Appropriately hydrophilic/hydrophobic cathode enables high-performance aqueous zinc-ion batteries[J]. ENERGY STORAGE MATERIALS,2020,30:337-345.
APA	Zhang, Xiaotan.,Li, Jiangxu.,Ao, Huaisheng.,Liu, Dongyan.,Shi, Lei.,...&Qian, Yitai.(2020).Appropriately hydrophilic/hydrophobic cathode enables high-performance aqueous zinc-ion batteries.ENERGY STORAGE MATERIALS,30,337-345.
MLA	Zhang, Xiaotan,et al."Appropriately hydrophilic/hydrophobic cathode enables high-performance aqueous zinc-ion batteries".ENERGY STORAGE MATERIALS 30(2020):337-345.