| 电化学阻抗技术在高容量锂离子电池中的研究进展 |
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| 作者单位： | Department of Physical Chemistry,School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China;China Electric Power Research Institute,Beijing 100192,China;Electric Power Research Institute,State Grid Shanghai Municipal Electric Power Company,Shanghai 200437,China |
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| 基金项目： | This work was financially supported by the State Grid Corporation Science and Technology Project of China |
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| 摘 要： | The world’s energy system is changing dramatically. Li-ion battery, as a powerful and highly effective energy storage technique, is crucial to the new energy revolution for its continuously expanding application in electric vehicles and grids. Over the entire lifetime of these power batteries, it is essential to monitor their state of health not only for the predicted mileage and safety management of the running electric vehicles, but also for an “end-of-life” evaluation for their repurpose. Electrochemical impedance spectroscopy (EIS) has been widely used to diagnose the health state of batteries quickly and nondestructively. In this review, we have outlined the working principles of several electrochemical impedance techniques and further evaluated their application prospects to achieve the goal of nondestructive testing of battery health. EIS can scientifically and reasonably perform real-time monitoring and evaluation of electric vehicle power batteries in the future and play an important role in vehicle safety and battery gradient utilization.
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| 关 键 词： | ,,,,, |
Research progress of the electrochemical impedance technique applied to the high-capacity lithium-ion battery |
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| Authors: | Li-fan Wang Meng-meng Geng Xia-nan Ding Chen Fang Yu Zhang Shan-shan Shi Yong Zheng Kai Yang Chun Zhan Xin-dong Wang |
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| Abstract: | The world's energy system is changing dramatically. Li-ion battery, as a powerful and highly effective energy storage technique, is crucial to the new energy revolution for its continuously expanding application in electric vehicles and grids. Over the entire lifetime of these power batteries, it is essential to monitor their state of health not only for the predicted mileage and safety management of the running electric vehicles, but also for an "end-of-life" evaluation for their repurpose. Electrochemical impedance spectroscopy (EIS) has been widely used to diagnose the health state of batteries quickly and nondestructively. In this review, we have outlined the working principles of several electro-chemical impedance techniques and further evaluated their application prospects to achieve the goal of nondestructive testing of battery health. EIS can scientifically and reasonably perform real-time monitoring and evaluation of electric vehicle power batteries in the future and play an important role in vehicle safety and battery gradient utilization. |
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| Keywords: | electric vehicle Li-ion battery gradient utilization electrochemical impedance technology |
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