The detection of defects and poor insulation behavior of the separator is essential for high-quality batteries. Optical quality control methods in cell production are unable to detect small but still relevant …
Learn MoreThe defect of the shallow surface of metal parts is detected through the analysis and treatment of the eddy current. It is suitable for defect detection of conductive materials. ... In order to further assist researchers and enterprise engineers to apply the deep-learning method to product defect detection, Table 6 are from high precision [96 ...
Learn MoreThe future direction of global automotive development is electrification, and the battery current collector (BCC) is an essential component of new energy vehicle batteries. However, the welding defects in the BCC during the welding process are characterized by a disorganized distribution, extensive size variations, multiple types, and …
Learn MoreA new strategy for improving safety by designing a smart battery that allows internal battery health to be monitored in situ and achieves early detection of lithium dendrites inside batteries through a bifunctional separator, which offers a third sensing terminal in addition to the cathode and anode. Expand
Learn MoreHowever, this rapid expansion brings an acute challenge: ensuring the integrity and safety of battery cells through meticulous defect detection. One technology to address this challenge is scanning acoustic microscopy (SAM), which can provide detailed insights into the structure of battery cells for improved defect detection.
Learn MoreDefect and structural evolution are critical in determining the stability of battery materials. Here, the authors use high-energy Kr ion irradiation to induce rapid defect and study structural ...
Learn More1. Introduction. Complying with the goal of carbon neutrality, lithium-ion batteries (LIBs) stand out from other energy storage systems for their high energy density, high power density, and long lifespan [1], [2], [3].Nevertheless, batteries are vulnerable under abuse conditions, such as mechanical abuse, electrical abuse, and thermal abuse, …
Learn MoreA YOLOv8-Based Approach for Real-Time Lithium-Ion ...
Learn MoreDownload: Download high-res image (1MB) Download: Download full-size image Fig. 5. Eight types of battery welding defects with labels: (a) the left side shows the coveriswrong image while the right side shows the weldinghole image (b) the left side indicates the continuoushole image while the right side indicates the lackofweld image (c) …
Learn MoreThe improvement of battery management systems (BMSs) requires the incorporation of advanced battery status detection technologies to facilitate early …
Learn MoreReceived December 26, 2020, accepted February 23, 2021, date of publication March 8, 2021, date of current version March 16, 2021. Digital Object Identifier 10.1109/ACCESS.2021.3064180
Learn MoreDefective regions in battery materials often generate excess or non-uniform heat profiles during operation. Here, we discuss lock-in thermography as a high-sensitivity, spatially-resolved, and non-destructive technique to characterize defects and guide the targeted optimization of new battery materials and cell designs.
Learn MoreThis capability is of critical importance for the identification of defects that could lead to battery failure or safety issues, and guide the optimization of LIBs with …
Learn MoreDefect Detection in Solid-State Battery Electrolytes Using Lock-In Thermal Imaging. Dana B. Sulas 5,1, Steve Johnston 1, Natalie Seitzman 4,1,2, ... in the post-breakdown cells to increased resistive heat generation at the smaller-area dendrites where the actual current densities may be relatively high.
Learn MoreAs an essential component of the new energy vehicle battery, current collectors affect the performance of battery and are crucial to the safety of passengers. The significant differences in shape and scale among defect types make it challenging for the model detection of current collector defects. In order to reduce application costs and …
Learn MoreIn addition, these advances also facilitate the detection of not just gross defects, but much smaller defects, to drive highly consistent, high yield products. "Advanced, phased array SAM systems make it possible for battery manufacturers to move to a higher level of failure analysis because of the level of detection and precision …
Learn MoreAbnormal contact resistance at the welding points will be high, and performing direct current (DC) resistance testing on the battery can assess the quality of the welds based on the DC resistance value. ... Scholars have conducted research on how to achieve more comprehensive and accurate detection of battery defects [[99], [100], [101]].
Learn MoreDefect detection is performed every 100 cycles. Normal batteries go through 500 cycles, producing a total of 15 data points. Two 5% defect batteries go through 500 cycles and one 5% defect battery go through 400 cycles because of early failure. Two 10% defect batteries go through 500 cycles and one 10% defect battery fails after 100 …
Learn MoreAn end-to-end adaptive and lightweight defect detection model for the battery current collector (BCC), DGNet is proposed, which achieves higher detection accuracy and lower computational overhead, reaching the state-of-the-art (SOTA) level. As an essential component of the new energy vehicle battery, current collectors affect the …
Learn MoreWhen and why does a rechargeable battery lose capacity or go bad? This is a question that is surprisingly difficult to answer; yet, it lies at the heart of progress in the fields of consumer ...
Learn MoreIn order to reduce the cost of lithium-ion batteries, production scrap has to be minimized. The reliable detection of electrode defects allows for a quality control and fast operator reaction in ideal closed control loops and a well-founded decision regarding whether a piece of electrode is scrap. A widely used inline system for defect detection is …
Learn Moreultrasonic testing to identify cracks in battery casings, showing high sensitivity to structural defects. ... et al. (2019). Limitations of Current Defect Detection Technologies. Journal of Power ...
Learn MoreBattery packs: Detection of common battery pack defects using machine learning models. The likelihood of effective fault isolation was relatively low. SVM: Battery data: Automated and real-time internal short-circuit fault detection using powerful machine learning models. The deep transfer learning approach was not used. Sample entropy: …
Learn MoreLithium-ion batteries are a key technology for electromobility; thus, quality control in cell production is a central aspect for the success of electric vehicles. The detection of defects and poor insulation behavior of the separator is essential for high-quality batteries. Optical quality control methods in cell production are unable to detect …
Learn MoreDefect Detection in Solid-State Battery Electrolytes Using Lock-In Thermal Imaging. Dana B. Sulas 5,1, ... we discuss lock-in thermography as a high-sensitivity, spatially-resolved, and non-destructive technique to characterize defects and guide the targeted optimization of new battery materials and cell designs. ... Voltage and …
Learn MoreLithium-ion batteries are considered the most suitable option for powering electric vehicles in modern transportation systems due to their high energy density, high energy efficiency, long cycle life, and low weight. Nonetheless, several safety concerns and their tendency to lose charge over time demand methods capable of determining their …
Learn MoreFurther development of solid-state batteries can bring significant advances in future energy storage devices for renewable energy technologies, transportation electrification, and portable devices. Optimization of anode materials properties via defect engineering is key in attaining their required functionality. Advanced carbon-based …
Learn MoreFault Detection and Diagnosis of the Electric Motor Drive ...
Learn MoreMoreover, in the face of sudden spontaneous combustion accidents caused by latent defects, the potential sensor can detect battery defects at an early stage and …
Learn MoreDownload figure: Standard image High-resolution image Therefore, defects detection is necessary before the use of thermal batteries. Traditional detection …
Learn More1 Introduction. Characterized by high energy densities, wide operating voltage windows, and long service lifetimes, lithium (Li)-ion batteries (LIBs) are vital energy storage devices in new-energy vehicles and electronic products (Han et al., 2019).The performance and quality of LIBs have a direct impact on products in terms of the user …
Learn MorePowering Up Battery Manufacturing with High-Speed Defect Detection. Scanning Acoustic Microscopy can provide detailed insights into the structure of battery cells. ... "With more sensors and advanced software to interpret the information at very high resolutions, battery OEMs can inspect 100% of the materials utilized at a level one to two ...
Learn MoreOverall, these results clearly indicate that low-quality batteries are widespread and that CT scanning is an effective way to detect them. Glimpse is a Boston-based startup pioneering high-throughput CT scanning for battery quality control by solving CT scanning''s two major bottlenecks: scan time and analysis time. First, most high …
Learn MoreRecently, Yuan et al. [27] proposed an in-situ method to detect the pore closure defect of the separator, which is based on the observation of abnormal voltage variation when the battery with ...
Learn MoreSGNet (ShuffleNet V2 + G_GFPN), a lightweight model for current collector defect detection, utilizes ShuffleNet V2 as the backbone feature extraction network and a designed G_GFPN as the feature fusion network to ensure high detection accuracy while minimizing computational costs. The quality of the current collector, an …
Learn MoreThe detection of product defects is essential in quality control in manufacturing. This study surveys stateoftheart deep-learning methods in defect detection. First, we classify the defects of products, such as electronic components, pipes, welded parts, and textile materials, into categories. Second, recent mainstream techniques and …
Learn More1 Introduction. Li-ion batteries (LIBs) have become the energy supply backbone of today''s portable electronic devices, electric vehicles and stationery (micro-)grid storage. 1, 2 The current trend of decarbonization in the mobility sector will lead to a tremendous demand and increase in Li-ion battery production. 3 Following recent …
Learn MoreThe 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 …
Learn MoreMRI, which utilizes magnetic fields to visualize the internal battery current distribution, is likely to prove useful for detecting patterns of change in the current …
Learn MoreAs a summary of the needs for defect detection: the models needs to be high accuracy, run at high speed, while needing a few MBs of memory or a few tens of MBs for operation and also consuming as little power as possible per every GFLOPS of computation. ... Image-based defect detection in lithium-ion battery electrode using …
Learn MoreLithium-ion batteries are a key technology for electromobility; thus, quality control in cell production is a central aspect for the success of electric vehicles. The detection of defects and poor insulation behavior of the separator is essential for high-quality batteries. Optical quality control methods in cell production are unable to detect small but still relevant …
Learn MoreIn the study of the charge current and defect size, the end condition was when the voltage reached 4.2 V. In the study of the equilibrium potential, the end condition was then the charge time reached the same value as in the case with a 0.5C current and 1.5 mm defect. 6.1.1. Charge current
Learn MoreThe quality of the current collector, an essential component in new energy vehicle batteries, is crucial for battery performance and significantly impacts the safety of vehicle occupants. However, detecting defects in battery current collector in real-time industrial applications with limited computational resources poses a major challenge. To address this, our paper …
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