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Could a New Charge Double the Service-life of Li-Ion Batteries?
"An improved charging protocol might help lithium-ion batteries to last much longer," writes Science Daily: The best commercial lithium-ion batteries...have a service life of up to eight years. Batteries are usually charged with a constant current flow. But is this really the most favorable method...
A new study by Prof. Philipp Adelhelm's group at HZB and Humboldt-University Berlin answers this question clearly with "no." Post-mortem analyses revealed clear differences after several charging cycles: In the CC samples, the solid electrolyte interface (SEI) at the anode was significantly thicker, which impaired the capacity... PC-charging led to a thinner SEI interface and fewer structural changes in the electrode materials. The study is published in the journal Advanced Energy Materials and analyzes the effect of the charging protocol on the service time of the battery, according to the article.
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