In Situ Separator Modifcation with an N‑Rich Conjugated Microporous Polymer for the Effective Suppression of Polysulfde Shuttle and Li Dendrite Growth | |
Department | 环境材料与生态化学研究发展中心 |
Yanfei Yang1; Peng Mu2; Bucheng Li1; An Li3; Zhang, Junping1 | |
The second department | 硅基功能材料组 |
2022-10-19 | |
Source Publication | ACS Applied Materials & Interfaces |
Issue | 14Pages:49224−49232 |
Abstract | Lithium-sulfur (Li-S) batteries are very promising high-energy-density electrochemical energy storage devices, but suffer from serious Li polysulfde (LiPS) shuttle and uncontrollable Li dendrite growth. Here, we show in situ polyolefn separator modifcation with an N-rich conjugated microporous polymer (NCMP) for advanced Li-S battery. In situ polymerization generates an ultrathin NCMP coating on the whole external surface and the internal surface of the separator, which is substantially different from the conventional approaches with thick coatings only on the external surface. The NCMP coating with abundant N-containing groups (-NH2 and -N=), uniform nanopores (12.294 Å), and π-conjugated structure can simultaneously inhibit LiPS shuttle and regulate uniform nucleation and growth of Li dendrites. Consequently, the NCMP-based separator endows the Li-S battery with signifcantly enhanced cycling stability at high S loading (5.4 mg cm-2), lean electrolyte (E/S = 6.3 μL mg-1), and limited Li excess (50 μm). |
DOI | doi.org/10.1021/acsami.2c15812 |
Indexed By | SCI |
If | 10.383 |
Language | 英语 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/29572 |
Collection | 环境材料与生态化学研究发展中心 |
Corresponding Author | Zhang, Junping |
Affiliation | 1.中国科学院兰州化学物理研究所 2.西北师范大学 3.兰州理工大学 |
Corresponding Author Affilication | Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences |
Recommended Citation GB/T 7714 | Yanfei Yang,Peng Mu,Bucheng Li,等. In Situ Separator Modifcation with an N‑Rich Conjugated Microporous Polymer for the Effective Suppression of Polysulfde Shuttle and Li Dendrite Growth[J]. ACS Applied Materials & Interfaces,2022(14):49224−49232. |
APA | Yanfei Yang,Peng Mu,Bucheng Li,An Li,&Zhang, Junping.(2022).In Situ Separator Modifcation with an N‑Rich Conjugated Microporous Polymer for the Effective Suppression of Polysulfde Shuttle and Li Dendrite Growth.ACS Applied Materials & Interfaces(14),49224−49232. |
MLA | Yanfei Yang,et al."In Situ Separator Modifcation with an N‑Rich Conjugated Microporous Polymer for the Effective Suppression of Polysulfde Shuttle and Li Dendrite Growth".ACS Applied Materials & Interfaces .14(2022):49224−49232. |
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