Estimation of
            <scp>NCM111</scp>
            /graphite acoustic properties under different lithium stoichiometry based on nondestructive acoustic in situ testing

Yi, Mengchao; Jiang, Fachao; Lu, Languang; Ren, Jianqiao; Jin, Ming-Xin; Yuan, Yuebo; Xiang, Yong; Geng, Xiang; Zhang, Xingong; Han, Xiao; Ouyang, Minggao

doi:10.1002/er.7336

Cited by 8 publications

(3 citation statements)

References 49 publications

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“…Table 2 summarizes the properties of the materials used to prepare the battery sample. Specifically, the data of cathode and anode are obtained from previous work (Yi et al, 2021), they were completely wetted in the electrolyte at a porosity of 30%. The others are standard materials, their acoustic properties are publicly available information.…”

Section: Methodsmentioning

confidence: 99%

“…For scanning and imaging of small batteries, the liquid coupling method used by Deng et al ( 2020) is superior to the air coupling method used by Li and Zhou (2019) and Chang and Steingart (2021). Therefore, the non-contact-multiple acoustic channel-battery in situ testing (NCMAC-BIST) methodology proposed in previous work (Yi et al, 2021) was applied in this study. The ultrasonic equipment was developed by Tsinghua University and manufactured by Solid (Beijing) Technology Co., Ltd., it can support maximum eight channels of signal transmission and reception at the same time.…”

Section: Experimental Setupsmentioning

confidence: 99%

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Ultrasonic Tomography Study of Metal Defect Detection in Lithium-Ion Battery

Yi¹,

Jiang²,

Lu³

et al. 2021

Front. Energy Res.

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Lithium-ion batteries are widely used in electric vehicles and energy storage systems. Sudden fire accident is one of the most serious issue, which is mainly caused by unpredicted internal short circuit. Metal particle defect is a key factor in internal short circuit it will not show an obvious abnormal change in battery external characteristic just like mechanical and thermal abuse. So, a non-destructive testing of battery internal metal defect is very necessary. This study is first time to scan and analyze different types of defects inside a battery by using ultrasonic technology, and it shows the detection capability boundary of this methodology. A non-contact ultrasonic scanning system with multi-channel was built to scan the battery sample with aluminum foil, copper foil and copper powder defects. The position and shape of those defects were clearly shown by using tomography methodology. It was found that the acoustic properties difference between metal defects and battery active materials has a strong influence on detection sensitivity. Compared with aluminum foil, copper foil and copper powder are easier to be detected and change the ultrasonic signal greatly, they will produce an obvious shadowing artifacts and speed displacement phenomena in tomography images. Ultrasonic tomography technology is an effective method for non-destructive testing of lithium-ion batteries.

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Section: Methodsmentioning

confidence: 99%

Section: Experimental Setupsmentioning

confidence: 99%

Ultrasonic Tomography Study of Metal Defect Detection in Lithium-Ion Battery

Yi¹,

Jiang²,

Lu³

et al. 2021

Front. Energy Res.

Self Cite

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show abstract

“…Currently, ultrasound has shown great potential for battery state estimation, imaging of electrolyte distribution, and characterisation of side reaction products. [19][20][21] As yet, there are fewer acoustic results on capacity fading. Kevin W. Knehr et al 22 proposed to monitor the long-term evolution of batteries using acoustic metrics and analysed the consistency of the acoustic response over the first 50 cycles.…”

mentioning

confidence: 99%

Ultrasonic Non-Destructive Testing on Fast-Charging Lithium-Ion Battery’s Capacity Fading

Sun,

Zhang,

Liu

et al. 2024

J. Electrochem. Soc.

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The ultrasonic inspection technique has been widely used for the internal structure detection and reaction process characterization of lithium-ion batteries because of its nondestructive testing properties. One of the main challenges in addressing the issue of charging time for power supplies with long-life requirements is fast charging, which is a crucial technological advancement. Fast charging, however, will shorten the charging period while also hastening the power battery’s capacity degradation, reducing its service life. This paper presents a method for monitoring the capacity attenuation of a fast-charging battery by calculating the ultrasonic attenuation coefficient. The experimental and calculation results show that the battery capacity decays nonlinearly with the increase in service time, which is a power function of the ultrasonic attenuation coefficient. Moreover, the inhomogeneous ageing of battery electrode material is detected and quantified based on the differences in acoustic signals, which provides new insights into battery health management and uneven ageing assessment.

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Application of Nondestructive Testing Technology in Device‐Scale for Lithium‐Ion Batteries

Wan,

Xu,

et al. 2023

Small Structures

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Lithium‐ion batteries (LIBs), due to their high energy density and long cycling life have been widely applied in a variety of industries, including electric vehicles, small‐ and medium‐sized electronic devices, and intelligent medical care. Nevertheless, the security and real‐time state of LIBs is difficult to obtain accurately, improving the battery's service life and ensuring battery safety have become the focus of research. Nondestructive testing (NDT) technology has developed quickly to reach this purpose, requiring a thorough investigation of how batteries’ internal structures have evolved. The principles, contributing factors, and applications of various widely used NDT techniques are summarized and discussed in this review. These inspection techniques can be used to evaluate the battery condition, observe the internal structure of the battery, analyze the failure phenomenon and electrochemical performance of the battery operation, etc. Finally, a summary and outlook are given regarding the characteristics and prospects of NDT methods. This overview will show new light on the application of NDT technology for LIBs and will promote the development of next‐generation LIBs with high security.

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Estimation of NCM111 /graphite acoustic properties under different lithium stoichiometry based on nondestructive acoustic in situ testing

Cited by 8 publications

References 49 publications

Ultrasonic Tomography Study of Metal Defect Detection in Lithium-Ion Battery

Ultrasonic Tomography Study of Metal Defect Detection in Lithium-Ion Battery

Ultrasonic Non-Destructive Testing on Fast-Charging Lithium-Ion Battery’s Capacity Fading

Application of Nondestructive Testing Technology in Device‐Scale for Lithium‐Ion Batteries

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