N2 - The abnormality detection of lithium-ion battery pack is crucial to ensure the safety of electric vehicles (EVs). However, the dynamic and complex operating conditions of EVs making it challenging for algorithms designed under laboratory conditions to perform properly. In this study, a novel data-driven framework for abnormality detection ...
1. Introduction. Transportation electrification has been considered as a promising solution to environmental problems and has experienced rapid growth in recent years, leading to a global stock of EVs over 17 million by the end of 2021 [1], [2].The widespread of EVs is partially attributed to technological progress of lithium-ion batteries …
Accurate evaluation of Li-ion battery (LiB) safety conditions can reduce unexpected cell failures, facilitate battery deployment, and promote low-carbon economies.
Common Abnormalities of Lithium-Ion Batteries. For lithium-ion battery systems, there are many other components in addition to the battery unit, such as connection components, sensors, and …
1. Introduction. As one of the most popular energy storage devices, lithium-ion batteries have dominated the consumer electronics market and electric vehicles on account of high energy density and long lifespan [[1], [2], [3]].The safety, durability, and reliable operation of battery systems attract more attention [4] pared with normal …
Common Reasons for Lithium Battery Not Charging 1. Insufficient voltage from the charger. One of the most common reasons for a lithium battery not charging is insufficient voltage from the charger itself. Chargers provide the necessary voltage to recharge the battery. If the voltage output is too low, the battery won''t charge properly.
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1 INTRODUCTION. Lithium-ion batteries are widely used as power sources for new energy vehicles due to their high energy density, high power density, and long service life. 1, 2 However, it usually requires hundreds of battery cells in series and parallel to meet the requirements of pure electric vehicles for mileage and voltage. 3 The …
Common Reasons for Lithium Battery Not Charging 1. Insufficient voltage from the charger. One of the most common reasons for a lithium battery not charging is insufficient voltage from the charger itself. Chargers …
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To ensure safe and efficient battery operations and to enable timely battery system maintenance, accurate and reliable detection and diagnosis of battery …
The rapid development of lithium-ion battery (LIB) technology promotes its wide application in electric vehicle (EV), aerospace, and mobile electronic equipment. ... permanent damage under high voltage [20], and the performance and stability of LIB will be dramatically reduced at the abnormal temperature range [21]. However, during the …
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Lithium-ion battery packs are widely deployed as power sources in transportation electrification solutions. To ensure safe and reliable operation of battery packs, it is of critical importance to monitor operation status and diagnose the running faults in a timely manner. This study investigates a novel fault diagnosis and abnormality …
the designed coefficient, the systematic faults of battery pack and possible abnormal state can be timely diagnosed. 2) The t-SNE technique, The K-means clustering and Z-score methods are ...
Screening out these few batteries with abnormal lifetime performances prior to battery grouping and pack assembly can improve the capacity, lifetime, and cost-benefit of a battery pack with immediate effect.
Before leaving the factory, lithium-ion battery (LIB) cells are screened to exclude voltage-abnormal cells, which can increase the fault rate, troubleshooting difficulty, and degrade pack performance. However, the time interval to obtain the detection results through the existing voltage-abnormal cell method is too long, which can seriously affect …
Downloadable (with restrictions)! The abnormality detection of lithium-ion battery pack is crucial to ensure the safety of electric vehicles (EVs). However, the dynamic and complex operating conditions of EVs making it challenging for algorithms designed under laboratory conditions to perform properly. In this study, a novel data-driven framework for …
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Extreme operating conditions, such as collision, extrusion, puncture, and water immersion, usually lead to cell failure. At the microscopic level, LIB fault is a result of the …
Through comprehensive analysis of operation data of the battery pack in E-scooters, we use the statistical technology to analyze the distribution characteristics of …
The increasing adoption of lithium-ion batteries (LIBs) in low-carbon power systems is driven by their advantages, including long life, low self-discharge, and high-energy density. However, LIB failures degrade performance and cause fire hazards. Effective fault diagnosis is thus critical yet challenging. This article reviews LIB fault mechanisms, features, and …
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The safety of battery packs is greatly affected by individual abnormal cells. However, it is challenging to diagnose abnormal aging batteries in the early stages due to the low abnormality rate and imperceptible initial performance deviations. This paper proposes a feature engineering and deep learning (DL)-based method for abnormal …
The battery system, as the core energy storage device of new energy vehicles, faces increasing safety issues and threats. An accurate and robust fault diagnosis technique is crucial to guarantee the …
The increasing adoption of lithium-ion batteries (LIBs) in low-carbon power systems is driven by their advantages, including long life, low self-discharge, and high-energy …
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1. Introduction. The electrified transportation has become an important initiative to promote economic transformation, optimize energy structure and improve air quality [1].Due to high power, high energy, long life-cycle, lithium-ion batteries are the most suitable energy storage devices for electric vehicles (EVs) [2].To achieve the output …
Xue, Q. et al. Fault diagnosis and abnormality detection of lithium-ion battery packs based on statistical distribution. J. Power Sources 482, 228964 (2021).
People often think of battery monitors as the fuel gauge of a battery. However, they do much more than just provide the state of charge of your battery system. Battery monitors also collect and display helpful data such as battery voltage, power consumption, estimated remaining runtime, current consumption, battery temperature, …
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The service life of large battery packs can be significantly influenced by only one or two abnormal cells with faster aging rates. However, the early‐stage identification of lifetime abnormality ...
The safety of battery packs is greatly affected by individual abnormal cells. However, it is challenging to diagnose abnormal aging batteries in the early stages due to the low abnormality rate and imperceptible initial performance deviations. This paper proposes a feature engineering and deep learning (DL)-based method for abnormal aging prognosis …
Based on the voltage data, this paper develops a fault warning algorithm for electric vehicle lithium-ion battery packs based on K-means and the Fréchet algorithm. And the actual collected EV driving …
People often think of battery monitors as the fuel gauge of a battery. However, they do much more than just provide the state of charge of your battery system. Battery monitors also collect and …
Internal short circuit (ISC) fault can significantly degrade a lithium-ion battery''s lifetime, and in severe cases can lead to fatal safety accidents. Therefore, it is …
1 Introduction. The lithium-ion battery is widely regarded as a promising device for achieving a sustainable society. [1, 2] Nevertheless, its manufacturing process is always accompanied by high consumption of energy and raw materials.[3, 4] Therefore, a long enough service life is critical to achieve net-zero carbon emissions and make …
The battery pack voltage of lithium iron phosphate battery packs ranges from 275 to 401.5 V. Considering the safety during the experiments, a 315–361.5 V battery pack voltage was adopted. For the upper-limit voltage of the battery pack, the fault diagnosis voltage was 410 V when the actual voltage of the battery pack recorded by the …
Electric vehicles are developing prosperously in recent years. Lithium-ion batteries have become the dominant energy storage device in electric vehicle application because of its advantages such as high power density and long cycle life. To ensure safe and efficient battery operations and to enable timely battery system maintenance, …
DOI: 10.1016/j.energy.2024.131276 Corpus ID: 269143691; Aging abnormality detection of lithium-ion batteries combining feature engineering and deep learning @article{Du2024AgingAD, title={Aging abnormality detection of lithium-ion batteries combining feature engineering and deep learning}, author={Jingcai Du and Caiping …
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After that, the battery abnormal temperature is diagnosed online by combining the obtained temperature residuals and the optimal fault threshold. Specifically, if the residual value exceeds the threshold value, the battery temperature is identified abnormal. Download: Download high-res image (837KB) Download: Download full-size …
The battery system, as the core energy storage device of new energy vehicles, faces increasing safety issues and threats. An accurate and robust fault diagnosis technique is crucial to guarantee the safe, reliable, and robust operation of lithium-ion batteries. However, in battery systems, various faults are difficult to diagnose and isolate …
The high safety risks of battery fires and explosions with the large number of battery modules make early and accurate diagnosis of lithium-ion battery faults …
The service life of large battery packs can be significantly influenced by only one or two abnormal cells with faster aging rates. However, the early‐stage identification of lifetime abnormality is challenging due to the low abnormal rate and imperceptible initial performance deviations. This work proposes a lifetime abnormality …
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