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Oxford Researchers Boost Battery Charging Speed by 40%

2/22/2026

Summary

Story summary

Researchers at the University of Oxford developed an imaging technique to visualize polymer binders in lithium-ion battery electrodes.
The method uses silver and bromine markers to detect binders and assess impact on conductivity.
Findings show binder distribution changes can reduce internal ionic resistance by up to 40%, improving charging speed.
The study is supported by the Faraday Institution's Nextrode project and has attracted interest from battery manufacturers and electric-vehicle companies.

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Story summary

Researchers at the University of Oxford developed an imaging technique to visualize polymer binders in lithium-ion battery electrodes.
The method uses silver and bromine markers to detect binders and assess impact on conductivity.
Findings show binder distribution changes can reduce internal ionic resistance by up to 40%, improving charging speed.
The study is supported by the Faraday Institution's Nextrode project and has attracted interest from battery manufacturers and electric-vehicle companies.