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

doi:10.1016/j.mtener.2019.100342

CORC > 金属研究所 > 中国科学院金属研究所

	Highly cross-linked carbon sponge enables room-temperature long-life semi-liquid Na/polysulfide battery
	Sun, Ju 2; Lin, Yunhui 2; Sun, Zhenhua 3; Zhu, Shenmin 1; Amal, Rose 2; Li, Feng 3; Wang, Da-Wei 2,4
刊名	MATERIALS TODAY ENERGY
	2019-12-01
卷号	14 页码:8
关键词	Na/polysulfide batteries Semi-liquid battery Cross-linked sponges 3D graphene
ISSN号	2468-6069
DOI	10.1016/j.mtener.2019.100342
通讯作者	Li, Feng(fli@imr.ac.cn) ; Wang, Da-Wei(da-wei.wang@unsw.edu.au)
英文摘要	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.
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
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000504690500012
资助机构	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
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/136477]
专题	金属研究所_中国科学院金属研究所
通讯作者	Li, Feng; Wang, Da-Wei
作者单位	1.Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China 2.Univ New South Wales, Sch Chem Engn, Sydney, NSW 2052, Australia 3.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, 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.