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 4; Amal, Rose 2; Li, Feng 3; Wang, Da-Wei 1,2
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/321006/136474]
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.Univ New South Wales, UNSW Digital Grid Futures Inst, Sydney, NSW 2052, Australia 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.Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China
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.