Facile Fabrication of Polymer Electrolytes via Lithium Salt-Accelerated Thiol-Michael Addition for Lithium-Ion Batteries,Macromolecules

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Facile Fabrication of Polymer Electrolytes via Lithium Salt-Accelerated Thiol-Michael Addition for Lithium-Ion Batteries
Macromolecules ( IF 5.1 ) Pub Date : 2020-08-19 , DOI: 10.1021/acs.macromol.0c01302
Ke Jiang ₁ , Jirong Wang ₁ , Cai Zuo ₁ , Shaoqiao Li ₁ , Sibo Li ₁ , Dan He ₁ , Haiyan Peng ₁ , Xiaolin Xie ₁ , Rinaldo Poli ₂ , Zhigang Xue ₁

Affiliation

Polymer electrolyte (PE) that possesses improved thermal and mechanical stability is believed to be by far one of the most promising electrolytes for meeting the safety and performance needs of advanced electrochemical devices. Here, high-performance PEs are fabricated via facile thiol-Michael addition catalyzed by triethylamine in the presence of lithium salts. The lithium salt functions as both an ion source and a co-catalyst, significantly accelerating the thiol-Michael addition reaction. The PEs exhibit a superior thermal decomposition temperature up to 300 °C. Additionally, PEs from the thiol-decorated polyhedral oligomeric silsesquioxane display reversible electrochemical response and stable cycling performance. Our findings based on a self-catalyzed strategy provide a promising direction for rapidly fabricating PEs that meet electrochemical requirements for practical solid polymer batteries.

中文翻译：

通过锂盐加速的Thiol-Michael加成制备锂离子电池，可轻松制造聚合物电解质

迄今为止，具有改善的热稳定性和机械稳定性的聚合物电解质（PE）被认为是满足先进电化学设备的安全性和性能需求的最有前途的电解质之一。在这里，高性能的聚乙烯是通过在锂盐存在下由三乙胺催化的硫醇-迈克尔加成反应制得的。锂盐既充当离子源又充当助催化剂，从而显着加速了硫醇-迈克尔加成反应。PE的热分解温度最高可达300°C。此外，硫醇修饰的多面体低聚倍半硅氧烷的PE表现出可逆的电化学响应和稳定的循环性能。

更新日期：2020-09-09

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