Test results and Li inventory tracking of nine cells in the formation cycle. a, Results of the nine cells presented in voltage versus specific capacity curves in the formation cycle. b, The results presented in a Veq versus x relationship. Credit: Nature Energy (2024). DOI: 10.1038/s41560-024-01476-z
Reliably monitoring the amount of lithium (Li) present in rechargeable batteries, specifically in the so-called cathode active material (CAM), is key to understanding the condition of batteries from the time when it is fabricated to the end of its operation. However, a reliable methodology to directly track the active Li in batteries …
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