Issue 42, 2020

CuO–C modified glass fiber films with a mixed ion and electron-conducting scaffold for highly stable lithium metal anodes

Abstract

The most critical issue hindering the practical application of lithium metal anodes in secondary batteries is the uncontrollable growth of dendrites, which is caused by the uneven supply of lithium ions transported from the inevitably inhomogeneous solid electrolyte interface (SEI) layer on the electrode surface. During lithium deposition, the intrinsically uneven distribution of lithium ions on the anode surface causes the lithium to be liable to deposit at tips and humps, and this results in uncontrollable dendrite growth. Herein, CuO–C modified glass fiber films with a mixed ion and electron-conducting network are proposed to realize homogenized lithium ion flux via providing widespread inner lithium ion transport channels in the skeleton. The improved lithium ion transport in the anodes can remarkably weaken the polarization of lithium plating, further contributing to uniform lithium deposition and high cycling stability. Owing to the high-performance mixed ion and electron transport frameworks, the resultant half cells achieve a long lifespan of over 500 cycles at 1 mA cm−2. Moreover, a full battery coupled with LiFePO4 shows enhanced rate capabilities and high cycle stability, with retention of 81.1% at 1C over 400 cycles compared with a Cu–C modified glass fiber film scaffold.

Graphical abstract: CuO–C modified glass fiber films with a mixed ion and electron-conducting scaffold for highly stable lithium metal anodes

Supplementary files

Article information

Article type
Communication
Submitted
16 Way 2020
Accepted
08 Dit 2020
First published
09 Dit 2020

J. Mater. Chem. A, 2020,8, 21961-21967

CuO–C modified glass fiber films with a mixed ion and electron-conducting scaffold for highly stable lithium metal anodes

X. Shen, G. Zhao, L. Fan, Z. Guo, C. Zhao, A. Chen, G. Yang, Z. Cheng and N. Zhang, J. Mater. Chem. A, 2020, 8, 21961 DOI: 10.1039/D0TA09113H

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements