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    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/121837


    题名: Modification of aluminum current collectors with laser-scribed graphene for enhancing the performance of lithium ion batteries
    作者: Cho, Er-Chieh;Cai-Wan, Chang-Jian;Wu, Yen-Ju;Chao, Szu-Han;Huang, Jen-Hsien;Lee, Kuen-Chan;Weng, Huei Chu;Hsu, Shih-Chieh
    关键词: Graphene;Laser irradiation;Current collector;Lithium ion battery
    日期: 2021-09-15
    上传时间: 2022-01-04 12:11:23 (UTC+8)
    摘要: In this study, the graphene-modified Al foils are prepared to assemble lithium ion batteries (LIBs) through a three-step approach comprising: (1) deposition of the polyamic acid (PAA) on the Al substrate; (2) curing the PAA to form the polyimide (PI)-coated Al foils; (3) converting the PI into porous graphene by CO2 laser irradiation. With integration of the PI derived graphene (PDG) in the LIBs, the inserted PDG layer can enhance the adhesion and interface resistance between the active layer and Al electrode. The LiNi0.5Mn1.5O4 (LNMO)//Li4Ti5O12 (LTO) full cells with PDG layer are also fabricated to evaluate the effect of the modified layer on the cell performance. Compared to the pristine Al electrode, the modified current collector can improve the rate performance and reduce the temperature rise during the charge/discharge process leading to better cycling stability.
    關聯: Journal of Power Sources 506, 230060
    DOI: 10.1016/j.jpowsour.2021.230060
    显示于类别:[化學工程與材料工程學系暨研究所] 期刊論文

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