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Propelling polysulfides transformation for high-rate and long-life lithiumsulfur batteries
Zheng, Cheng; Niu, Shuzhang; Lv, Wei; Zhou, Guangmin; Li, Jia; Fan, Shaoxun; Deng, Yaqian; Pan, Zhengze; Li, Baohua; Kang, Feiyu; Yang, Quan-Hong; Lv, W; Yang, QH (reprint author), Tsinghua Univ, Grad Sch Shenzhen, Engn Lab Functionalized Carbon Mat, Shenzhen 518055, Peoples R China.; Yang, QH (reprint author), Tsinghua Univ, Grad Sch Shenzhen, Shenzhen Key Lab Graphene Based Mat, Shenzhen 518055, Peoples R China.
2017-03-01
Source PublicationNANO ENERGY
ISSN2211-2855
Volume33Pages:306-312
AbstractA three-dimensional (3D) hierarchical porous graphene macrostructure coupled with uniformly distributed alpha-Fe2O3 nano-particles (denoted Fe-PGM) was designed as a sulfur host in a lithium- sulfur battery, and was prepared by a hydrothermal method. In this hybrid structure, the alpha-Fe2O3 nano-particles are proved to not only strongly interact with the polysulfides, but more importantly, chemically promote their transformation to insoluble species during the charge/discharge process, working as chemical barriers for the shuttling of the lithium polysulfides (LiPSs). Therefore, together with 3D hierarchical porous structure facilitating fast electron/ion transfer, Fe-PGM as a sulfur host in a cathode contributes to a high rate performance (565 mAh g(-1) at a high rate of 5 C relative to 1571 mAh g(-1) at 0.3 C) as well as long cyclic stability (an ultralow capacity fading rate of 0.049% per cycle over 1000 cycles at the high current rate of 5 C).; A three-dimensional (3D) hierarchical porous graphene macrostructure coupled with uniformly distributed alpha-Fe2O3 nano-particles (denoted Fe-PGM) was designed as a sulfur host in a lithium- sulfur battery, and was prepared by a hydrothermal method. In this hybrid structure, the alpha-Fe2O3 nano-particles are proved to not only strongly interact with the polysulfides, but more importantly, chemically promote their transformation to insoluble species during the charge/discharge process, working as chemical barriers for the shuttling of the lithium polysulfides (LiPSs). Therefore, together with 3D hierarchical porous structure facilitating fast electron/ion transfer, Fe-PGM as a sulfur host in a cathode contributes to a high rate performance (565 mAh g(-1) at a high rate of 5 C relative to 1571 mAh g(-1) at 0.3 C) as well as long cyclic stability (an ultralow capacity fading rate of 0.049% per cycle over 1000 cycles at the high current rate of 5 C).
description.department[zheng, cheng ; niu, shuzhang ; lv, wei ; li, jia ; fan, shaoxun ; deng, yaqian ; pan, zhengze ; li, baohua ; kang, feiyu ; yang, quan-hong] tsinghua univ, grad sch shenzhen, engn lab functionalized carbon mat, shenzhen 518055, peoples r china ; [zheng, cheng ; niu, shuzhang ; lv, wei ; li, jia ; fan, shaoxun ; deng, yaqian ; pan, zhengze ; li, baohua ; kang, feiyu ; yang, quan-hong] tsinghua univ, grad sch shenzhen, shenzhen key lab graphene based mat, shenzhen 518055, peoples r china ; [zheng, cheng] guangdong univ technol, sch mat & energy, guangzhou 510006, guangdong, peoples r china ; [zhou, guangmin] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china
KeywordLithium-sulfur Batteries 3d Alpha-fe2o3/graphene Hybrid Redox Reaction Polysulfides Transformation
Subject AreaChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
Funding OrganizationNational Basic Research Program of China [2014CB932400]; National Natural Science Foundation of China [51525204, 51502150, 51232005]; Shenzhen Basic Research Project [JCYJ20150529164918734, KQCX20140521161756227]; National Science Foundation for Post-doctoral Scientists of China [2015M571038]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/78261
Collection中国科学院金属研究所
Corresponding AuthorLv, W; Yang, QH (reprint author), Tsinghua Univ, Grad Sch Shenzhen, Engn Lab Functionalized Carbon Mat, Shenzhen 518055, Peoples R China.; Yang, QH (reprint author), Tsinghua Univ, Grad Sch Shenzhen, Shenzhen Key Lab Graphene Based Mat, Shenzhen 518055, Peoples R China.
Recommended Citation
GB/T 7714
Zheng, Cheng,Niu, Shuzhang,Lv, Wei,et al. Propelling polysulfides transformation for high-rate and long-life lithiumsulfur batteries[J]. NANO ENERGY,2017,33:306-312.
APA Zheng, Cheng.,Niu, Shuzhang.,Lv, Wei.,Zhou, Guangmin.,Li, Jia.,...&Yang, QH .(2017).Propelling polysulfides transformation for high-rate and long-life lithiumsulfur batteries.NANO ENERGY,33,306-312.
MLA Zheng, Cheng,et al."Propelling polysulfides transformation for high-rate and long-life lithiumsulfur batteries".NANO ENERGY 33(2017):306-312.
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