In Situ Separator Modifcation with an N‑Rich Conjugated Microporous Polymer for the Effective Suppression of Polysulfde Shuttle and Li Dendrite Growth
文献类型:期刊论文
作者 | Yanfei Yang3; Peng Mu2; Bucheng Li3; An Li1; Zhang, Junping3 |
刊名 | ACS Applied Materials & Interfaces |
出版日期 | 2022-10-19 |
期号 | 14页码:49224−49232 |
DOI | doi.org/10.1021/acsami.2c15812 |
英文摘要 | 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). |
语种 | 英语 |
源URL | [http://ir.licp.cn/handle/362003/29572] |
专题 | 兰州化学物理研究所_环境材料与生态化学研究发展中心 |
通讯作者 | Zhang, Junping |
作者单位 | 1.兰州理工大学 2.西北师范大学 3.中国科学院兰州化学物理研究所 |
推荐引用方式 GB/T 7714 | Yanfei Yang,Peng Mu,Bucheng Li,et al. 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. |
入库方式: OAI收割
来源:兰州化学物理研究所
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