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BQ40Z50: BQ40Z50: Help with Chemistry ID for Samsung INR21700-50S

Part Number: BQ40Z50
Other Parts Discussed in Thread: GPCCHEM

Tool/software:

Hi Team,


As per TI's recommendation we performed the test for obtaining Chemistry ID and used GPCCHEM tool.

I have attached two zip files first is the file that we uploaded to the tool test_logs  and second file TI_Report is the file that we received from TI on our mail.

I have attached my configuration file as well for better debugging. Config_params

For some reason the report says that, "Warning: Discharge rate is too high. High rate reduces ID detection accuracy 10 hr rate is recomeended. Total discharge time is less than 5 hrs t_hrs= -0.0011130555555557 0 0
Error: No discharge portion found Make sure discaharge current is negative N_points= 2 0 0"

But in the logs it can be clearly seen that from ElapsedTime column at value 83504.705 starts to discharge the battery and discharges upto 121686.648 ElapsedTime which is more than recommended 10 hours.

Can you please check the logs and confirm what could be the reason for tool to not produce chem-id.
Can you please run the tool from your end and suggest chemistry id for the battery.

Thanks,
Abhishek