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个人信息Personal Information
副教授
博士生导师
硕士生导师
任职 : 重大装备设计研究所 副所长
性别:男
毕业院校:东北大学
学位:博士
所在单位:机械工程学院
学科:机械设计及理论. 机械制造及其自动化. 机械电子工程
办公地点:机械工程学院知方楼8027室
联系方式:Email: liuww@dlut.edu.cn; ghostliuww@163.com
电子邮箱:liuww@dlut.edu.cn
Remanufacturing cathode from end-of-life of lithium-ion secondary batteries by Nd:YAG laser radiation
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论文类型:期刊论文
发表时间:2016-01-01
发表刊物:CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
收录刊物:SCIE、EI、Scopus
卷号:18
期号:1
页面范围:231-243
ISSN号:1618-954X
关键字:Electrode materials; End-of-life; Electric vehicle; Laser cleaning; Remanufacturing
摘要:The electric vehicle industry has been rapidly developing internationally. Electric vehicle batteries (EVBs) are perceived as a low environmental impact energy storage technology. While the service life of an EVB is relatively long, a significant number of battery packs will reach the end of their service lives eventually. The end-of-life (EOL) EVBs may still have appreciable residual value for remanufacturing and secondary use. Some solid-electrolyte interface (SEI) layers will persist on the surface of electrodes deposit after a period of continuous cycling, causing the battery degradation and failure. An approach to battery end-of-life management was introduced involving remanufacturing of the cathode from EOL lithium-ion battery electrodes, and a recent study on remanufacturing process of the degraded EVBs using pulse laser to radiate SEI on the electrode surface was presented in this paper, here on a laboratory scale. Based on experimental data, the SEI film removal was carried out with laser energy intensity ranging from 0.035 to 0.169 J/mm(2). The remanufactured cathodes were characterized through a combination of scanning electron microscopy, Fourier transform infrared spectroscopy, and wavelength dispersive spectrometer, respectively. The experimental results indicated that the remanufacturing treatments were successful in removing the EOL by-products (e.g., SEI films) and upgrading the cathode to its pre-cycling functionality. It is suggested that the fade capacity of a lithium-ion battery can be recovered by using laser radiation method.