| 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 Author | Li, Feng(fli@imr.ac.cn) ; Wang, Da-Wei(da-wei.wang@unsw.edu.au) |
| 2019-12-01 | |
| Source Publication | MATERIALS TODAY ENERGY
 |
| ISSN | 2468-6069 |
| Volume | 14Pages:8 |
| Abstract | 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. |
| Keyword | Na/polysulfide batteries Semi-liquid battery Cross-linked sponges 3D graphene |
| Funding Organization | 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 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Chemistry ; Energy & Fuels ; Materials Science |
| WOS Subject | Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary |
| WOS ID | WOS:000504690500012 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/136475 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Li, Feng; Wang, Da-Wei |
| Affiliation | 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 |
| 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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