journal article·2025Open access

A 3D mixed ion-electron conducting framework for dendrite-free lithium metal anodes

Jinmin Lin, Zerui Chen, Wei Zhao, Junwei Han, Bo Chen, Yao Chen, Qianqian Liu, Hao Bin Wu

Nanoscale· Volume 17· Issue 3

Abstract

To enable the practical application of lithium metal batteries, it is crucial to address the challenges of dendrite growth and volume expansion in lithium metal anodes. A 3D framework offers an effective solution to regulate the lithium plating/stripping process. In this work, we present a 3D mixed ion-electron conducting (MIEC) framework as a lithium metal anode, achieved by conformally coating carbon nanotubes (CNTs) onto Li0.5La0.5TiO3 (LLTO) particles. The synergy between LLTO's lithiophilicity and CNTs' high electron conductivity ensures uniform lithium deposition and mitigates volume changes, thereby enhancing the electrochemical performance. As a result, the LLTO@CNT anode demonstrates a high coulombic efficiency of 99.24% for 400 cycles at 1 mA cm-2 in a half-cell, along with excellent cycling stability and prolonged lifespan.
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Research context

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Advanced Battery Technologies Research

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

Affiliations

Institute for Composites Science Innovation (InCSI) and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, China

Zhejiang Cosmx Battery Co., Ltd, Jiaxing, China

Key Laboratory of Electronic Materials and Devices of Tianjin, School of Electronics and Information Engineering, Hebei University of Technology, Tianjin, China

Zhejiang Key Laboratory of Advanced Solid State Energy Storage Technology and Applications, Taizhou Institute of Zhejiang University, Taizhou 318000, China

Funding

National Natural Science Foundation of China · Fundamental Research Funds for the Central Universities · Natural Science Foundation of Hebei Province · Natural Science Foundation of Zhejiang Province

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