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Related Experiment Video

Updated: Jun 12, 2025

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

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

Published on: November 11, 2013

High-performance anode-less all-solid-state batteries enabled by multisite nucleation and an elastic network.

Jihoon Oh^1,2, Yeeun Sohn^1,2, Jang Wook Choi^1,2

¹School of Chemical and Biological Engineering and Institute of Chemical Process, Seoul National University 1 Gwanak-ro Gwanak-gu Seoul 08826 Republic of Korea jangwookchoi@snu.ac.kr.

|April 21, 2025

Summary

This summary is machine-generated.

This study introduces a novel multi-seed strategy for anode-less all-solid-state batteries (ALASSBs). This approach enhances lithium deposition uniformity and mechanical stability, improving battery performance at room temperature.

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Area of Science:

Materials Science
Electrochemistry
Energy Storage

Background:

Anode-less all-solid-state batteries (ALASSBs) offer high energy density and safety for green mobility.
Heterogeneous lithium deposition and mechanical degradation hinder ALASSB performance, especially at ambient temperatures.

Purpose of the Study:

To develop a protective layer strategy for ALASSBs to enable uniform lithium deposition and mitigate mechanical stress.
To improve the cycling stability and performance of ALASSBs at room temperature.

Main Methods:

A novel multi-seed strategy was developed, integrating lithiophilic metallic seeds with a polymer matrix.
Multiple seeds with varied lithiation potentials were used to promote diverse lithiation pathways.
An elastic polymer network was employed to dissipate stress within the protective layer.

Main Results:

Uniform lithium deposition was achieved due to the multi-seed nucleation sites.
The elastic polymer matrix effectively mitigated mechanical degradation during cycling.
The ALASSB full-cell retained 70% of its capacity after 100 cycles at 0.5C and 25 °C.

Conclusions:

The synergistic effect of multiple lithiophilic seeds and an elastic binder provides a viable design principle for ALASSB protective layers.
This strategy enhances the practical implementation of ALASSBs for energy storage applications.
The developed method offers a pathway to improved battery longevity and performance in green mobility.