估计
电池(电)
计算机科学
可靠性工程
电子工程
工程类
功率(物理)
物理
系统工程
量子力学
作者
Iker Lopetegi,Gregory L. Plett,M. Scott Trimboli,Lucia Perez,Eduardo de Miguel,Unai Iraola
出处
期刊:Journal of The Electrochemical Society
[The Electrochemical Society]
日期:2024-03-06
标识
DOI:10.1149/1945-7111/ad30d5
摘要
Abstract Battery management systems (BMSs) are required to estimate many non-measurable values that describe the actual operating condition of batteries; such as state of charge (SOC) or state of health (SOH). In order to improve accuracy, many physical states and parameters can be estimated using physics-based models (PBMs). These estimates could be used to improve the control and
prognosis of batteries. In a series of papers, we propose a new method to estimate internal physical states, SOC, SOH and other electrode-specific state of health (eSOH) parameters of a lithium-ion battery, using interconnected sigma-point Kalman filters (SPKFs) and a single-particle model with electrolyte dynamics (SPMe). This second paper focuses on eSOH parameter estimation. Simulation
results show that the method is capable of estimating the eSOH parameters and key degradation modes that can occur inside a lithium-ion battery cell using only cell voltage and current measurements.
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