CPC G01R 31/385 (2019.01) [G01R 31/3648 (2013.01); G01R 31/3865 (2019.01); G01R 31/392 (2019.01)] | 20 Claims |
1. A method comprising:
activating an electrochemical cell;
measuring an open circuit voltage of the cell over a period of time to determine a voltage versus time function, wherein the period of time starts after activating the cell, and
the voltage versus time function results from multiple open circuit voltage measurements that include at least 100 open circuit voltage measurements taken between activating the cell and 24 hours after activating the cell; and
screening the cell for the presence of a failure mechanism by checking the voltage versus time function for a failure criteria.
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