Hi,
At 1C-rate, I am doing OCV test on A123 li-ion cyclindrical cells to measure capacity & internal resistance. At the end of discharge cycle how long is the pause time after which I can start my charge cycle or vice versa?
Thanks in advance
During your OCV test, V(t) = VOCV(ttime), check the (common[1]) condition of
abs( dV/dt ) < 0.01 mV/s
to be (always) true, for a (typical) time window of about one hour.
So, the "pause time" of your question is a condition based multi-variable parameter depending on many correlated factors, such as the temperature, C-rate, SOH, SOC, cycle number, aging, etc.
1. Protocols for studying intercalation electrodes materials: Part I: Galvanostatic cycling with potential limitation (GCPL) https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=2ahUKEwj0-oiQ1u7cAhVBvJAKHc0DBpoQFjAAegQIARAC&url=http%3A%2F%2Fwww.bio-logic.net%2Fwp-content%2Fuploads%2FApplication-note-1.pdf&usg=AOvVaw18VOQtDahJAXYuBhOxdMhb
During your OCV test, V(t) = VOCV(ttime), check the (common[1]) condition of
abs( dV/dt ) < 0.01 mV/s
to be (always) true, for a (typical) time window of about one hour.
So, the "pause time" of your question is a condition based multi-variable parameter depending on many correlated factors, such as the temperature, C-rate, SOH, SOC, cycle number, aging, etc.
1. Protocols for studying intercalation electrodes materials: Part I: Galvanostatic cycling with potential limitation (GCPL) https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=2ahUKEwj0-oiQ1u7cAhVBvJAKHc0DBpoQFjAAegQIARAC&url=http%3A%2F%2Fwww.bio-logic.net%2Fwp-content%2Fuploads%2FApplication-note-1.pdf&usg=AOvVaw18VOQtDahJAXYuBhOxdMhb
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