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题名: W18O49 nanowire composites as novel barrier layers for Li-S batteries based on high loading of commercial micro-sized sulfur
作者: Zhang, WK(张炜坤); Lin, C; Cong, S(丛杉); Hou, JY; Liu, B; Geng, FX; Jin, J(靳健); Wu, MH; Zhao, ZG(赵志刚)
通讯作者: Zhao, ZG(赵志刚)
刊名: RSC ADVANCES
发表日期: 2016
DOI: 10.1039/c5ra27635g
卷: 6, 期:18
收录类别: SCI ; EI
文章类型: 期刊论文
部门归属: 先进材料研究部
英文摘要: Li-S batteries are regarded as one of the most promising energy-storage devices due to their high theoretical energy density, five times higher than that of lithium-ion batteries (2600 vs. similar to 500 W h kg(-1)). However, the polysulfide shuttle effect is the primary challenge for future applications of Li-S batteries. Herein, a novel barrier layer material, nonstoichiometric W18O49 nanowires, is reported to alleviate the undesirable shuttle effect, thereby largely boosting the specific capacity and cyclability of Li-S batteries. Without particular cathode design, the introduction of W18O49 nanowires enables the commercially available micro-sized sulfur cathode with 70% sulfur loading to deliver a respectable initial discharge capacity of 1142 mA h g(-1) and retain a specific capacity of about 809 mA h g(-1) after 50 cycles, even at a current density of 0.5 A g(-1). To the best of our knowledge, such a capacity fading for Li-S batteries based on high loading of commercial micro-sized sulfur has been rarely reported.
关键词[WOS]: LONG CYCLE-LIFE ; CARBON PAPER ; LITHIUM ; INTERLAYER ; GRAPHENE ; CATHODES ; CELLS ; CAPACITY
语种: 英语
JCR小类分区: 二区
WOS记录号: WOS:000369658100096
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinano.ac.cn/handle/332007/4555
Appears in Collections:先进材料研究部_赵志刚团队_期刊论文

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Recommended Citation:
Zhang, WK,Lin, C,Cong, S,et al. W18O49 nanowire composites as novel barrier layers for Li-S batteries based on high loading of commercial micro-sized sulfur[J]. RSC ADVANCES,2016,6(18).
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