A Stable Porous Aluminum Electrode with High Capacity for Rechargeable Lithium-Ion Batteries

Chen P, Ruck M (2023)

Publication Type: Journal article

Publication year: 2023

Journal

Batteries MDPI

Book Volume: 9

Article Number: 37

Journal Issue: 1

DOI: 10.3390/batteries9010037

Abstract

A binder-free aluminum (Al) electrode was fabricated by electrodeposition on a three-dimensional copper foam (3DCu) or carbon fabric (3DCF) from a mixed-halide ionic liquid. The strong adhesion, structural stability and interface compatibility between Al and 3DCu facilitate high electrical conductivity and effectively alleviate large volume change. In a lithium-ion battery, the continuous, dendrite-free Al/3DCu electrode enables stable and reversible reactions, which delivered a first discharge capacity of 981 mAh g−1 in a coin cell at 21 mA g−1. It operates stably for at least 12 cycles with a discharge depth of about 1 mAh per cycle (7 h each) at the rate of 21 mA g−1. The cycled Al/3DCu electrode maintains good interfacial stability and shows no shedding. In contrast to many nanostructured electrodes, the amount of Al can reach 30% of a solid Al electrode with an average conversion to Li0.71Al. The concept of porous 3D electrodes provides a good compromise between diffusion kinetics and the total amount of active metal available in a battery with alloying-type anodes and appears promising for application.

Involved external institutions

Technische Universität Dresden DE Germany (DE)

How to cite

APA:

Chen, P., & Ruck, M. (2023). A Stable Porous Aluminum Electrode with High Capacity for Rechargeable Lithium-Ion Batteries. Batteries, 9(1). https://doi.org/10.3390/batteries9010037

MLA:

Chen, Peng, and Michael Ruck. "A Stable Porous Aluminum Electrode with High Capacity for Rechargeable Lithium-Ion Batteries." Batteries 9.1 (2023).

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