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A Dual-Function Na2SO4 Template Directed Formation of Cathode Materials with a High Content of Sulfur Nanodots for Lithium-Sulfur Batteries
Luo, Chong; Lv, Wei; Deng, Yaqian; Zhou, Guangmin; Pan, Zheng-Ze; Niu, Shuzhang; Li, Baohua; Kang, Feiyu; Yang, Quan-Hong; Lv, W; Yang, QH (reprint author), Tsinghua Univ, Engn Lab Functionalized Carbon Mat, Grad Sch Shenzhen, Shenzhen 518055, Peoples R China.; Yang, QH (reprint author), Tsinghua Univ, Shenzhen Key Lab Graphene Based Mat, Grad Sch Shenzhen, Shenzhen 518055, Peoples R China.; Yang, QH (reprint author), Tsinghua Univ, TBSI, Shenzhen 518055, Peoples R China.
2017-07-19
发表期刊SMALL
ISSN1613-6810
卷号13期号:27页码:-
摘要The sulfur content in carbon-sulfur hybrid using the melt-diffusion method is normally lower than 70 wt%, which greatly decreases the energy density of the cathode in lithium-sulfur (Li-S) batteries. Here, a scalable method inspired by the commercialized production of Na2S is used to prepare a hierarchical porous carbon-sulfur hybrid (denoted HPC-S) with high sulfur content (approximate to 85 wt%). The HPC-S is characterized by the structure of sulfur nanodots naturally embedded in a 3D carbon network. The strategy uses Na2SO4 as the starting material, which serves not only as the sulfur precursor but also as a salt template for the formation of the 3D carbon network. The HPC-S cathode with such a high sulfur content shows excellent rate performance and cycling stability in Li-S batteries because of the sulfur nanoparticles, the unique carbon framework, and the strong interaction between them. The production method can also be readily scaled up and used in practical Li-S battery applications.; The sulfur content in carbon-sulfur hybrid using the melt-diffusion method is normally lower than 70 wt%, which greatly decreases the energy density of the cathode in lithium-sulfur (Li-S) batteries. Here, a scalable method inspired by the commercialized production of Na2S is used to prepare a hierarchical porous carbon-sulfur hybrid (denoted HPC-S) with high sulfur content (approximate to 85 wt%). The HPC-S is characterized by the structure of sulfur nanodots naturally embedded in a 3D carbon network. The strategy uses Na2SO4 as the starting material, which serves not only as the sulfur precursor but also as a salt template for the formation of the 3D carbon network. The HPC-S cathode with such a high sulfur content shows excellent rate performance and cycling stability in Li-S batteries because of the sulfur nanoparticles, the unique carbon framework, and the strong interaction between them. The production method can also be readily scaled up and used in practical Li-S battery applications.
部门归属[luo, chong ; lv, wei ; deng, yaqian ; pan, zheng-ze ; niu, shuzhang ; li, baohua ; kang, feiyu ; yang, quan-hong] tsinghua univ, engn lab functionalized carbon mat, grad sch shenzhen, shenzhen 518055, peoples r china ; [luo, chong ; lv, wei ; deng, yaqian ; pan, zheng-ze ; niu, shuzhang ; li, baohua ; kang, feiyu ; yang, quan-hong] tsinghua univ, shenzhen key lab graphene based mat, grad sch shenzhen, shenzhen 518055, peoples r china ; [luo, chong ; deng, yaqian ; pan, zheng-ze ; kang, feiyu] tsinghua univ, sch mat sci & engn, lab adv mat, beijing 100084, peoples r china ; [zhou, guangmin] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china ; [niu, shuzhang ; kang, feiyu ; yang, quan-hong] tsinghua univ, tbsi, shenzhen 518055, peoples r china
学科领域Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
资助者National Natural Science Foundation of China [U1601206, 51525204, 51372167, U1401243]; National Basic Research Program of China [2014CB932400]; Shenzhen Basic Research Project [ZDSYS20140509172959981, JCYJ20150529164918734, JCYJ20150331151358140, JCYJ20150331151358136]
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/78038
专题中国科学院金属研究所
通讯作者Lv, W; Yang, QH (reprint author), Tsinghua Univ, Engn Lab Functionalized Carbon Mat, Grad Sch Shenzhen, Shenzhen 518055, Peoples R China.; Yang, QH (reprint author), Tsinghua Univ, Shenzhen Key Lab Graphene Based Mat, Grad Sch Shenzhen, Shenzhen 518055, Peoples R China.; Yang, QH (reprint author), Tsinghua Univ, TBSI, Shenzhen 518055, Peoples R China.
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GB/T 7714
Luo, Chong,Lv, Wei,Deng, Yaqian,et al. A Dual-Function Na2SO4 Template Directed Formation of Cathode Materials with a High Content of Sulfur Nanodots for Lithium-Sulfur Batteries[J]. SMALL,2017,13(27):-.
APA Luo, Chong.,Lv, Wei.,Deng, Yaqian.,Zhou, Guangmin.,Pan, Zheng-Ze.,...&Yang, QH .(2017).A Dual-Function Na2SO4 Template Directed Formation of Cathode Materials with a High Content of Sulfur Nanodots for Lithium-Sulfur Batteries.SMALL,13(27),-.
MLA Luo, Chong,et al."A Dual-Function Na2SO4 Template Directed Formation of Cathode Materials with a High Content of Sulfur Nanodots for Lithium-Sulfur Batteries".SMALL 13.27(2017):-.
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