中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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
DOIdoi.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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