Model-Based State-of-Charge and State-of-Health Estimation Algorithms Utilizing a New Free Lithium-Ion Battery Cell Dataset for Benchmarking Purposes

State estimation for lithium-ion battery cells has been the topic of many publications concerning the different states of a battery cell. They often focus on a battery cell’s state of charge (SOC) or state of health (SOH). Therefore, this paper introduces, on the one hand, a new lithium-ion battery...

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Main Authors: Steven Neupert, Julia Kowal
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Batteries
Subjects:
Online Access:https://www.mdpi.com/2313-0105/9/7/364
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author Steven Neupert
Julia Kowal
author_facet Steven Neupert
Julia Kowal
author_sort Steven Neupert
collection DOAJ
description State estimation for lithium-ion battery cells has been the topic of many publications concerning the different states of a battery cell. They often focus on a battery cell’s state of charge (SOC) or state of health (SOH). Therefore, this paper introduces, on the one hand, a new lithium-ion battery dataset with dynamic validation data over degradation and, on the other hand, a model-based SOC and SOH estimation based on this dataset as a reference. An unscented Kalman-filter-based approach was used for SOC estimation and extended with a holistic ageing model to handle the SOH estimation. The paper describes the dataset, the models, the parameterisation, the implementation of the state estimations, and their validation using parts of the dataset, resulting in SOC and SOH estimations over the entire battery life. The results show that the dataset can be used to extract parameters, design models based on it, and validate it with dynamically degraded battery cells. The work provides an approach and dataset for better performance evaluations, applicability, and reliability investigations.
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spelling doaj.art-52f442a7411848c2a76d5c46cf3ee23b2023-11-18T18:18:56ZengMDPI AGBatteries2313-01052023-07-019736410.3390/batteries9070364Model-Based State-of-Charge and State-of-Health Estimation Algorithms Utilizing a New Free Lithium-Ion Battery Cell Dataset for Benchmarking PurposesSteven Neupert0Julia Kowal1Department Electrical Energy Storage Technology, Technische Universität Berlin, Einsteinufer 11, 10587 Berlin, GermanyDepartment Electrical Energy Storage Technology, Technische Universität Berlin, Einsteinufer 11, 10587 Berlin, GermanyState estimation for lithium-ion battery cells has been the topic of many publications concerning the different states of a battery cell. They often focus on a battery cell’s state of charge (SOC) or state of health (SOH). Therefore, this paper introduces, on the one hand, a new lithium-ion battery dataset with dynamic validation data over degradation and, on the other hand, a model-based SOC and SOH estimation based on this dataset as a reference. An unscented Kalman-filter-based approach was used for SOC estimation and extended with a holistic ageing model to handle the SOH estimation. The paper describes the dataset, the models, the parameterisation, the implementation of the state estimations, and their validation using parts of the dataset, resulting in SOC and SOH estimations over the entire battery life. The results show that the dataset can be used to extract parameters, design models based on it, and validate it with dynamically degraded battery cells. The work provides an approach and dataset for better performance evaluations, applicability, and reliability investigations.https://www.mdpi.com/2313-0105/9/7/364SOCSOHdatasetageingmodelestimation
spellingShingle Steven Neupert
Julia Kowal
Model-Based State-of-Charge and State-of-Health Estimation Algorithms Utilizing a New Free Lithium-Ion Battery Cell Dataset for Benchmarking Purposes
Batteries
SOC
SOH
dataset
ageing
model
estimation
title Model-Based State-of-Charge and State-of-Health Estimation Algorithms Utilizing a New Free Lithium-Ion Battery Cell Dataset for Benchmarking Purposes
title_full Model-Based State-of-Charge and State-of-Health Estimation Algorithms Utilizing a New Free Lithium-Ion Battery Cell Dataset for Benchmarking Purposes
title_fullStr Model-Based State-of-Charge and State-of-Health Estimation Algorithms Utilizing a New Free Lithium-Ion Battery Cell Dataset for Benchmarking Purposes
title_full_unstemmed Model-Based State-of-Charge and State-of-Health Estimation Algorithms Utilizing a New Free Lithium-Ion Battery Cell Dataset for Benchmarking Purposes
title_short Model-Based State-of-Charge and State-of-Health Estimation Algorithms Utilizing a New Free Lithium-Ion Battery Cell Dataset for Benchmarking Purposes
title_sort model based state of charge and state of health estimation algorithms utilizing a new free lithium ion battery cell dataset for benchmarking purposes
topic SOC
SOH
dataset
ageing
model
estimation
url https://www.mdpi.com/2313-0105/9/7/364
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AT juliakowal modelbasedstateofchargeandstateofhealthestimationalgorithmsutilizinganewfreelithiumionbatterycelldatasetforbenchmarkingpurposes