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Ni2P electrocatalysts decorated hollow carbon spheres as bi-functional mediator against shuttle effect and Li dendrite for Li-S batteries
Yang, Shan1,2; Xiao, Ru2,3; Hu, Tianzhao2,4; Fan, Xialu2,3; Xu, Ruogu2,3; Sun, Zhenhua2,3; Zhong, Benhe1; Guo, Xiaodong1; Li, Feng2,3,5
Corresponding AuthorSun, Zhenhua(zhsun@imr.ac.cn) ; Guo, Xiaodong(xiaodong2009@scu.edu.cn) ; Li, Feng(fli@imr.ac.cn)
2021-12-01
Source PublicationNANO ENERGY
ISSN2211-2855
Volume90Pages:12
AbstractLithium-sulfur (Li-S) batteries are promising candidates for next-generation energy storage devices, while shuttle effect and Li dendrite growth severely obstruct the practical applications. Herein, well-dispersed Ni2P electrocatalysts decorated hollow carbon spheres (Ni2P-HCS) are constructed as high-efficiency bi-functional mediator for Li-S batteries. Benefiting from polar surface and high electrical conductivity, Ni2P-HCS possesses strong interaction and efficient electrocatalysis toward polysulfides. Moreover, regulated Li deposition behavior is realized on lithiated Ni2P-HCS surface ascribed to its lithiophilicity and as-formed mixed ion-electron conducting host composed of Li3P and Ni. As a result, the assembled Li-S full cells with Ni2P-HCS used as interlayer and Li host exhibit excellent rate capability (755.5 mAh g(-1) at 2 C) and long-term cycling stability (capacity fading rate of 0.05% per cycle at 1 C after 500 cycles). Importantly, high areal capacity (6.67 mAh cm(-2)) with high sulfur loading of 5.9 mg cm(-2) at low E/S ratio (6.8 mu L mg(-1)) is achieved. The loading coefficient and catalytic effectiveness value (CEV) are proposed to evaluate catalytic efficiency of electrocatalysts. This work exploits the potential of metal phosphides in concurrently solving challenges for S cathode and Li anode, and offers insight into developing high-efficiency electrocatalysts for advanced Li-S batteries.
KeywordLithium-sulfur battery Bi-functional mediator Nickel phosphide Shuttle effect Lithium dendrite
Funding OrganizationNational Natural Science Foundation of China ; National Key R&D Program of China ; Strategic Priority Research Program of Chinese Academy of Science ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Liaoning Revitalization Talents Program ; DNL Cooperation Fund, CAS
DOI10.1016/j.nanoen.2021.106584
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51972313] ; National Natural Science Foundation of China[52020105010] ; National Natural Science Foundation of China[51927803] ; National Key R&D Program of China[2016YFA0200100] ; National Key R&D Program of China[2016YFB0100100] ; Strategic Priority Research Program of Chinese Academy of Science[XDA22010602] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[Y201942] ; Liaoning Revitalization Talents Program[XLYC1908015] ; Liaoning Revitalization Talents Program[XLYC2007080] ; DNL Cooperation Fund, CAS[DNL202019]
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000708813000002
PublisherELSEVIER
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/166593
Collection中国科学院金属研究所
Corresponding AuthorSun, Zhenhua; Guo, Xiaodong; Li, Feng
Affiliation1.Sichuan Univ, Sch Chem Engn, Chengdu 610065, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
3.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
4.Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450001, Peoples R China
5.Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Yang, Shan,Xiao, Ru,Hu, Tianzhao,et al. Ni2P electrocatalysts decorated hollow carbon spheres as bi-functional mediator against shuttle effect and Li dendrite for Li-S batteries[J]. NANO ENERGY,2021,90:12.
APA Yang, Shan.,Xiao, Ru.,Hu, Tianzhao.,Fan, Xialu.,Xu, Ruogu.,...&Li, Feng.(2021).Ni2P electrocatalysts decorated hollow carbon spheres as bi-functional mediator against shuttle effect and Li dendrite for Li-S batteries.NANO ENERGY,90,12.
MLA Yang, Shan,et al."Ni2P electrocatalysts decorated hollow carbon spheres as bi-functional mediator against shuttle effect and Li dendrite for Li-S batteries".NANO ENERGY 90(2021):12.
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