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Highly cross-linked carbon sponge enables room-temperature long-life semi-liquid Na/polysulfide battery
Sun, Ju1; Lin, Yunhui1; Sun, Zhenhua2; Zhu, Shenmin3; Amal, Rose1; Li, Feng2; Wang, Da-Wei1,4
Corresponding AuthorLi, Feng(fli@imr.ac.cn) ; Wang, Da-Wei(da-wei.wang@unsw.edu.au)
2019-12-01
Source PublicationMATERIALS TODAY ENERGY
ISSN2468-6069
Volume14Pages:8
AbstractSodium/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.
KeywordNa/polysulfide batteries Semi-liquid battery Cross-linked sponges 3D graphene
Funding OrganizationAustralian 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
DOI10.1016/j.mtener.2019.100342
Indexed BySCI
Language英语
Funding ProjectAustralian 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 Research AreaChemistry ; Energy & Fuels ; Materials Science
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS IDWOS:000504690500012
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/136478
Collection中国科学院金属研究所
Corresponding AuthorLi, Feng; Wang, Da-Wei
Affiliation1.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
Recommended Citation
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.
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