标題: Microstructures and corrosion resistance of PbCaSnAl-M (M=Mg, Sr, Ba) grid alloys

作者: Pang, FZ (Pang, Fangzhao); Wu, YX (Wu, Yongxin); Liu, XW (Liu, Xiaowei); Chen, X (Chen, Xiang); Guo, L (Guo, Lei); Gao, SB (Gao, Shuaibo); Du, KF (Du, Kaifa); Wang, DH (Wang, Dihua); Yin, HY (Yin, Huayi)

來源出版物: JOURNAL OF ENERGY STORAGE 卷: 85 文獻号: 110909 DOI: 10.1016/j.est.2024.110909 Published Date: 2024 APR 30

摘要: The corrosion of positive grid alloys is important for determining the service life of lead-acid batteries (LABs). Herein, we prepared a series of PbCaSnAl-M (M = Mg, Sr, Ba) alloys by an induction melter and systematically investigated the effect of Mg, Sr and Ba on their microstructures and corrosion resistance. The results show that the average grain size of PbCaSnAl-Mg reduces from 14.56 um to 11.96 um, and the average grain size of PbCaSnAl-Sr and PbCaSnAl-Ba increases to 25.95 um and 39.17 um, respectively. The addition of Sr and Ba reduces the corrosion rate of PbCaSnAl alloys from 0.366 mg h-1 cm- 2 to 0.258 and 0.289 mg h-1 cm-2, respectively. The increase corrosion resistance is due to the Sr and Ba change the microstructures of the corrosion layer and improve the densification of the corrosion layer.

作者關鍵詞: Lead-acid battery; PbCaSnAl grid alloy; Alkaline-earth metals; Corrosion

地址: [Pang, Fangzhao; Wu, Yongxin; Chen, Xiang; Guo, Lei; Gao, Shuaibo; Du, Kaifa; Wang, Dihua; Yin, Huayi] Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072, Peoples R China.

[Wu, Yongxin; Liu, Xiaowei; Wang, Dihua; Yin, Huayi] Wuhan Univ & Chilwee, Joint Ctr Green Mfg Energy Storage Mat, Wuhan 430072, Peoples R China.

[Wang, Dihua; Yin, Huayi] Wuhan Univ, Int Cooperat Base Sustainable Utilizat Resources &, Wuhan 430072, Peoples R China.

通訊作者地址: Yin, HY (通訊作者)，Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072, Peoples R China.

電子郵件地址: yinhuayi@whu.edu.cn

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