Highly cross-linked carbon sponge enables room-temperature long-life semi-liquid Na/polysulfide battery

doi:10.1016/j.mtener.2019.100342

IMR OpenIR

	Highly cross-linked carbon sponge enables room-temperature long-life semi-liquid Na/polysulfide battery
	Sun, Ju 1; Lin, Yunhui 1; Sun, Zhenhua 2; Zhu, Shenmin 3; Amal, Rose 1; Li, Feng 2; Wang, Da-Wei 1,4
通讯作者	Li, Feng(fli@imr.ac.cn) ; Wang, Da-Wei(da-wei.wang@unsw.edu.au)
	2019-12-01
发表期刊	MATERIALS TODAY ENERGY
ISSN	2468-6069
卷号	14 页码:8
摘要	Sodium/sulfur (Na/S) batteries are actively studied due to their low cost and potential energy density. Improvements have been achieved in the room temperature Na/S batteries during the last decades, however still with low practical capacity and unstable cycling performance. We hereby report a semi-liquid Na/polysulfide (Na/PS) cell with unique microscale intertwined carbon/polymer sponges to alleviate sulfur loss during cycling. The as-prepared highly cross-linked structure not only facilitates mass transfer but provides functional reservoir to entrap polysulfides. The Na/PS batteries with low electrolyte/sulfur (E/S) ratio (similar to 4.05 mu L/mg) retain 375 mA h/g capacity after 200 cycles. More importantly, the interlinked sponge with high sulfur loading (e.g. 1.9 mg/cm(2)) restricts the decay rate of open-circuit voltage to only 0.04 parts per thousand per hour, which overcomes the severe self-discharge behavior observed in many Na/S cells. The highly cross-linked sponge therefore is an efficient approach to addressing the notorious challenges of Na/PS batteries. (C) 2019 Elsevier Ltd. All rights reserved.
关键词	Na/polysulfide batteries Semi-liquid battery Cross-linked sponges 3D graphene
资助者	Australian Research Council ; UNSW Faculty of Engineering Start-up grant ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; UNSW Digital Grid Futures Institute, UNSW, Sydney ; UNSW-SJTU joint grant
DOI	10.1016/j.mtener.2019.100342
收录类别	SCI
语种	英语
资助项目	Australian Research Council[DP160103244] ; UNSW Faculty of Engineering Start-up grant ; National Natural Science Foundation of China[51525206] ; National Natural Science Foundation of China[51521091] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA22010602] ; UNSW Digital Grid Futures Institute, UNSW, Sydney ; UNSW-SJTU joint grant
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
WOS类目	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS记录号	WOS:000504690500012
出版者	ELSEVIER SCI LTD
引用统计	被引频次：17[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/321006/136478
专题	中国科学院金属研究所
通讯作者	Li, Feng; Wang, Da-Wei
作者单位	1.Univ New South Wales, Sch Chem Engn, Sydney, NSW 2052, Australia 2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 3.Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China 4.Univ New South Wales, UNSW Digital Grid Futures Inst, Sydney, NSW 2052, Australia
推荐引用方式 GB/T 7714	Sun, Ju,Lin, Yunhui,Sun, Zhenhua,et al. Highly cross-linked carbon sponge enables room-temperature long-life semi-liquid Na/polysulfide battery[J]. MATERIALS TODAY ENERGY,2019,14:8.
APA	Sun, Ju.,Lin, Yunhui.,Sun, Zhenhua.,Zhu, Shenmin.,Amal, Rose.,...&Wang, Da-Wei.(2019).Highly cross-linked carbon sponge enables room-temperature long-life semi-liquid Na/polysulfide battery.MATERIALS TODAY ENERGY,14,8.
MLA	Sun, Ju,et al."Highly cross-linked carbon sponge enables room-temperature long-life semi-liquid Na/polysulfide battery".MATERIALS TODAY ENERGY 14(2019):8.