Work Description

Title: UofM pouch cell voltage and expansion dataset and modeling code Open Access Deposited

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Methodology
  • The expansion was measured using a displacement sensor (Keyence, Japan) mounted on the top plate. The dynamic testing was done using a battery cycler (Biologic, France). The temperature was measured using a K-type thermocouple (Omega, USA) placed on the surface of the battery. Voltage, current, and temperature data were recorded using the BT-Lab software. The expansion data was recorded using a LabView program. The data processing was done using Matlab software.
Description
  • The goal here is to study the voltage and expansion response of lithium-ion batteries at different charging rates. Specifically, the goal is to capture the observation of the smoothing of the peaks in dV/dQ and retention of the peaks in d^2 \delta/dQ^2 at higher C-rates. The retention of the peaks at higher charging rates enables better estimation of the cell capacity. To achieve this goal a reduced order electrochemical and mechanical model with multiple particles with a size distribution is developed. This allows us to capture the smoothing and preservation of the phase transitions in the voltage and expansion measurements at high C-rates, respectively. The model is written in Matlab software.
Creator
Depositor
  • pmohtat@umich.edu
Contact information
Discipline
Funding agency
  • Other Funding Agency
  • National Science Foundation (NSF)
Other Funding agency
  • Automotive Research Center (ARC)
ORSP grant number
  • F051079 (NSF); F053182 (ARC)
Keyword
Citations to related material
  • Mohtat, P., Lee, S., Sulzer, V., Siegel, J. B., & Stefanopoulou, A. G. (2020). Differential Expansion and Voltage Model for Li-ion Batteries at Practical Charging Rates. Journal of The Electrochemical Society, 167(11), 110561. https://doi.org/10.1149/1945-7111/aba5d1
Resource type
Last modified
  • 11/17/2022
Published
  • 08/25/2020
Language
DOI
  • https://doi.org/10.7302/wwma-hx25
License
To Cite this Work:
Mohtat, P., Siegel, J. B., Stefanopoulou, A. G. (2020). UofM pouch cell voltage and expansion dataset and modeling code [Data set], University of Michigan - Deep Blue Data. https://doi.org/10.7302/wwma-hx25

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Files (Count: 10; Size: 709 KB)

Thumbnaildsfsdfsdf Title Original Upload Last Modified File Size Access Actions
READ_ME.pdf 2020-08-21 2020-08-21 332 KB Open Access
Cover10.mat 2020-08-21 2020-08-21 182 KB Open Access
Cover5.mat 2020-08-21 2020-08-21 92 KB Open Access
Cover2.mat 2020-08-21 2020-08-21 37.1 KB Open Access
Cover1.mat 2020-08-21 2020-08-21 19.2 KB Open Access
2C.mat 2020-08-21 2020-08-21 9.88 KB Open Access
main.m 2020-08-21 2020-08-21 18 KB Open Access
Battery_MPM_Electrolyte_DAE.m 2020-08-21 2020-08-21 8.59 KB Open Access
DAEEventsFcn.m 2020-08-21 2020-08-21 2.34 KB Open Access
Plot_data_only.m 2020-08-21 2020-08-21 7.41 KB Open Access

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