تقرير
The Case for DeepSOH: Addressing Path Dependency for Remaining Useful Life
| العنوان: | The Case for DeepSOH: Addressing Path Dependency for Remaining Useful Life |
|---|---|
| المؤلفون: | Movahedi, Hamidreza, Weng, Andrew, Pannala, Sravan, Siegel, Jason B., Stefanopoulou, Anna G. |
| سنة النشر: | 2024 |
| المجموعة: | Computer Science |
| مصطلحات موضوعية: | Electrical Engineering and Systems Science - Systems and Control |
| الوصف: | The battery state of health (SOH) based on capacity fade and resistance increase is not sufficient for predicting Remaining Useful life (RUL). The electrochemical community blames the path-dependency of the battery degradation mechanisms for our inability to forecast the degradation. The control community knows that the path-dependency is addressed by full state estimation. We show that even the electrode-specific SOH (eSOH) estimation is not enough to fully define the degradation states by simulating infinite possible degradation trajectories and remaining useful lives (RUL) from a unique eSOH. We finally define the deepSOH states that capture the individual contributions of all the common degradation mechanisms, namely, SEI, plating, and mechanical fracture to the loss of lithium inventory. We show that the addition of cell expansion measurement may allow us to estimate the deepSOH and predict the remaining useful life. Comment: 6 pages, 3 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2405.12028 |
| رقم الأكسشن: | edsarx.2405.12028 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |