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- W4283579208 abstract "Data-driven methods are commonly used for state of health (SOH) estimation, which is essential to battery energy management. However, complex machine learning models, data gathering, and feature processing hinder its further implementation. A fast SOH estimation method based on linear properties of short-time charging is proposed to overcome these challenges. Only the exceptional single linear health factor (LHF) is required for effective SOH estimation. The LHF is chosen through correlation analysis from short-term feature derived from charging curves. The processing is straightforward. To define the relationship between LHF and SOH, a linear regression model is developed. For the simplicity and effectiveness of the method, it is suitable to be implemented in online applications with low hardware requirements. Finally, experiments show that the SOH estimation method has the highest accuracy of 0.54%, and the biggest estimation error is 2.20%. Furthermore, the data from first 20% cycles of the battery are used to build the model, ensuring that the SOH estimation accuracy is comparable. It is worth noting that the time cost of data acquisition does not exceed 30 s, which is important for fast estimation." @default.
- W4283579208 created "2022-06-28" @default.
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- W4283579208 date "2022-10-01" @default.
- W4283579208 modified "2023-10-17" @default.
- W4283579208 title "A fast state-of-health estimation method using single linear feature for lithium-ion batteries" @default.
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- W4283579208 doi "https://doi.org/10.1016/j.energy.2022.124652" @default.
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