DataVXAdvanced MaterialsPaper
journal article·2021-02

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

Kun Zhang, Wei Liu, Yuliang Gao, Xiaowei Wang, Zhongxin Chen, Ruiqi Ning, Wei Yu, Runlai Li, Li Li, Xing Li, Kai Yuan, Li Ma, Nan Li, Chao Shen, Wei Huang, Keyu Xie, Kian Ping Loh

Advanced Materials· Volume 33· Issue 5
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Source abstract

Abstract

Abstract 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 LiNi0.8Co0.1Mn0.1O2 (NCM811) as the cathode exhibits a stable energy density of 400 Wh kg−1.
Source: crossref · Quality: baseline

Research context

Energy storagePolymersNanomaterials

OpenAlex topics: Advanced Battery Materials and Technologies · Advancements in Battery Materials · Covalent Organic Framework Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Solidification Processing Center for Nano Energy Materials Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene (NPU) Xi'an 710072 P. R. China

Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore

Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore

Frontiers Science Center for Flexible Electronics (FSCFE) Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 P. R. China

Funding

National Natural Science Foundation of China · Fundamental Research Funds for the Central Universities · National Research Foundation Singapore · China Scholarship Council · National University of Singapore

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