Issue 15, 2022

Ultrafast charging and ultralong cycle life in solid-state Al-ion batteries

Abstract

Designing and fabricating solid-state batteries with high-rate capability and long cycle life remains a feat. Here, for the first time, a free-standing gel polymer electrolyte (GPE) that exhibits an ultrahigh ionic conductivity of 1.29 × 10−2 S cm−1 is used to regulate the charge transfer between the GPE and Al electrode. Full batteries with a structure of Al/GPE/3D graphene are proved to be stable under current densities from 20 to 200 A g−1, by providing a specific capacity of 122 mA h g−1, a charging rate up to 1000 A g−1 (0.24 s charging time), and a stability over 20 000 cycles. High-flux operations are found to be essential in lowering the energy request during high-rate reactions: not only reducing the surge voltage, but also increasing the energy (237 W h kg−1@20 A g−1) and power density (469 kW kg−1@500 A g−1) in output (>17%).

Graphical abstract: Ultrafast charging and ultralong cycle life in solid-state Al-ion batteries

Supplementary files

Article information

Article type
Paper
Submitted
23 janv. 2022
Accepted
28 févr. 2022
First published
28 févr. 2022

J. Mater. Chem. A, 2022,10, 8178-8185

Ultrafast charging and ultralong cycle life in solid-state Al-ion batteries

X. Shen, T. Sun, Z. Wu and L. Tan, J. Mater. Chem. A, 2022, 10, 8178 DOI: 10.1039/D2TA00630H

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