Lithium-ion battery lifespan increase

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battery informatics team

TechXplore

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Researchers discover a surprising way to jump-start battery performance

Summary

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87% Informative

Researchers at the SLAC- Stanford Battery Center report that giving batteries this first charge at unusually high currents increased their average lifespan by 50% .

The researchers were able to use scientific machine learning to pinpoint specific changes in the battery electrodes that account for this increase in lifespan and performance.

The study was carried out by a SLAC/ Stanford team led by Professor Will Chueh.

Removing more lithium ions up front frees up headspace in the positive electrode and allows the electrode to cycle in a more efficient way, improving subsequent performance.

"Brute force optimization by trial-and-error is routine in manufacturing how should we perform the first charge, and what is the winning combination of factors?" said Cui .

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