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rdbraatz / data-driven-prediction-of-battery-cycle-life-before-capacity-degradation

Code for Nature energy manuscript
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what is Frequency rate of data collection and unit of time. #35

Closed RonakGajera999 closed 1 year ago

RonakGajera999 commented 1 year ago

Hi, I am struggling with time series analysis while the dataset frequency rate(sampling rate) of the data acquisition method is not described in the research paper. can you please elaborate more about the what is the time stamp unit and at which rate you collect data from the battery.

JoachimSchaeffer commented 1 year ago

Please have a look at issue #33 Let me know whether that resolves your question.

RonakGajera999 commented 1 year ago

thank you for the information but how do we tell it in a minute time frame? while completing one cycle of charging time (0 to 80%) to average 9 to 13.3 minutes, from 80 to 100% with 1C CC-CV with current cutoff C/50 it really takes time 2.5 minutes? and discharge 4C rate 15 minutes. while what is the representation of the difference between two consecutive time points is too narrow and some points it even similar. so I am confused that what the should be concrete unit for time here.

petermattia commented 1 year ago

Thanks for the reply @JoachimSchaeffer!

Often in battery cycling, we log data every X seconds (eg 5 seconds) and Y change in voltage (eg 1 mV). This practice ensures that we log frequently (time component) while not missing any dramatic changes in voltage (voltage component). Thus, the time spacing is not uniform in the dataset.

JoachimSchaeffer commented 1 year ago

Thanks, @petermattia that's a perfect explanation for the figure in #33 .