A High-Performance Lithium Metal Battery with Ion-Selective Nanofluidic Transport in a Conjugated Microporous Polymer Protective Layer

Bibliographische Detailangaben
Veröffentlicht in:	Advanced materials (Deerfield Beach, Fla.). - 1998. - 33(2021), 5 vom: 22. Feb., Seite e2006323
1. Verfasser:	Zhang, Kun (VerfasserIn)
Weitere Verfasser:	Liu, Wei, Gao, Yuliang, Wang, Xiaowei, Chen, Zhongxin, Ning, Ruiqi, Yu, Wei, Li, Runlai, Li, Li, Li, Xing, Yuan, Kai, Ma, Li, Li, Nan, Shen, Chao, Huang, Wei, Xie, Keyu, Loh, Kian Ping
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2021
Zugriff auf das übergeordnete Werk:	Advanced materials (Deerfield Beach, Fla.)
Schlagworte:	Journal Article conjugated microporous polymers energy density lithium metal batteries nanofluidic transport

Beschreibung
Zusammenfassung:	© 2020 Wiley-VCH GmbH. Lithium metal is the "holy grail" of anodes, capable of unlocking the full potential of cathodes in next-generation batteries. However, the use of pure lithium anodes faces several challenges in terms of safety, cycle life, and rate capability. Herein, a solution-processable conjugated microporous thermosetting polymer (CMP) is developed. The CMP can be further converted into a large-scale membrane with nanofluidic channels (5-6 Å). These channels can serve as facile and selective Li-ion diffusion pathways on the surfaces of lithium anodes, thereby ensuring stable lithium stripping/plating even at high areal current densities. CMP-modified lithium anodes (CMP-Li) exhibit cycle stability of 2550 h at an areal current density of 20 mA cm-2 . Furthermore, CMP is readily amenable to solution-processing and spray coating, rendering it highly applicable to continuous roll-to-roll lithium metal treatment processes. Pouch cells with CMP-Li as the anode and LiNi0.8 Co0.1 Mn0.1 O2 (NCM811) as the cathode exhibits a stable energy density of 400 Wh kg-1
Beschreibung:	Date Revised 02.02.2021 published: Print-Electronic Citation Status PubMed-not-MEDLINE
ISSN:	1521-4095
DOI:	10.1002/adma.202006323