Journal
ENERGIES
Volume 14, Issue 9, Pages -Publisher
MDPI
DOI: 10.3390/en14092371
Keywords
V vs; Q curves; synthetic data; LFP; NCA; NMC 811; BDG tier 1 challenge
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Funding
- Office of Naval Research [N00014-18-1-2127, N00014-19-1-2159]
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This study introduces improved datasets for three major battery chemistries, which can be utilized for statistical or deep learning methods, along with a detailed statistical analysis. By incorporating the combined information of three learnable parameters, accurate diagnosis and early prognosis comparable to state of the art, while providing physical interpretability, were demonstrated.
The development of data driven methods for Li-ion battery diagnosis and prognosis is a growing field of research for the battery community. A big limitation is usually the size of the training datasets which are typically not fully representative of the real usage of the cells. Synthetic datasets were proposed to circumvent this issue. This publication provides improved datasets for three major battery chemistries, LiFePO4, Nickel Aluminum Cobalt Oxide, and Nickel Manganese Cobalt Oxide 811. These datasets can be used for statistical or deep learning methods. This work also provides a detailed statistical analysis of the datasets. Accurate diagnosis as well as early prognosis comparable with state of the art, while providing physical interpretability, were demonstrated by using the combined information of three learnable parameters.
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