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Related Experiment Video

Updated: Sep 8, 2025

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

Published on: August 12, 2013

Lithiating magneto-ionics in a rechargeable battery.

Yong Hu¹, Weiyi Gong², Sichen Wei³

¹Department of Mechanical and Aerospace Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260.

Proceedings of the National Academy of Sciences of the United States of America

|June 13, 2022

Summary

Researchers developed a novel magneto-ionic material for rechargeable batteries. This material acts as a built-in sensor, accurately monitoring the battery

Keywords:

lithium-ion battery magneto-ionics molecule-based magnet sensor state of charge

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Last Updated: Sep 8, 2025

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Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques

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Published on: November 11, 2013

Area of Science:

Solid-state materials science
Electrochemistry
Magnetism

Background:

Magneto-ionics enables ionic control of magnetism for low-power electronics.
Real-time ion intercalation is crucial for monitoring battery state of charge.

Purpose of the Study:

To investigate reversible lithiation/delithiation in a molecular magneto-ionic material.
To demonstrate its use as a real-time state-of-charge sensor in rechargeable batteries.

Main Methods:

Electrochemical and magnetic studies were performed.
Microwave-excited spin wave spectroscopy was employed at low frequency (0.35 GHz) and magnetic field (100 Oe).

Main Results:

Reversible lithiation/delithiation was confirmed, enabled by structural vacancy and hydrogen-bonding networks.
The material demonstrated dynamic tunability of magnetic ordering, correlating with charge state.
A fast and reliable built-in magneto-ionic sensor function was revealed.

Conclusions:

Molecular magneto-ionic cathodes can serve as integrated state-of-charge sensors.
This technology promises enhanced monitoring for rechargeable batteries.