Abstract: The stainless steel current collector of sodium-sulfur batteries is prone to suffer high-temperature corrosion in molten sodium polysulfide, which affects the performance of the battery. In this work, the high-temperature corrosion behavior of 304 stainless steel molten sodium polysulfide molten salt at 350 ℃ was studied by electrochemical impedance spectroscopy (EIS). Combined with microstructure analysis, the high-temperature corrosion mechanism was investigated. Electrochemical impedance spectroscopy of 304 stainless steel corroded in the molten sodium polysulfide is composed of the capacitive arc in the high frequency zone and the straight line in the low frequency zone, which shows a typical diffusion controlled reaction. The charge transfer resistance is between 0.918 Ω·cm2 and 2.014 Ω·cm2, indicating that 304 stainless steel is apt to corrode in the molten sodium polysulfide. The corrosion scale is mainly composed of FeS2, FeNiS2 outer layer, and inner layer Cr2S3. During the corrosion process, the product film on the surface of the alloy undergoes growth, dissolution and shedding.
通讯作者:
*任延杰,长沙理工大学教授,2001年6月毕业于长春工业大学获得工学学士学位,2004年6月毕业于长春工业大学获材料学硕士学位,2008年毕业于中国科学院金属研究所获材料学博士学位。主要从事动力设备的腐蚀与防护、金属的表面改性领域的研究。近年来在Corrosion Science、Journal of Power Sources、International Journal of Hydrogen Energy等国内外刊物上发表论文40余篇。参与完成国家“973”项目子课题1项。目前主持国家自然科学基金、湖南省自然科学基金项目等10余项;主编及参编专著各1部,申请并获批发明专利8项。yjren@csust.edu.cn
1 Hu Y Y, Wu X W, Wen Z Y. Energy Storage Science and Technology, 2021, 10(3), 781(in Chinese). 胡英瑛, 吴相伟, 温兆银. 储能科学与技术, 2021, 10(3), 781. 2 Toledo O M, Filho D O, Diniz A S A C. Renewable & Sustainable Energy Reviews, 2010, 14(1), 506. 3 Lu X C, Xia G G, Lemmon J P, et al. Journal of Power Sources, 2010, 195(9), 2431. 4 Cao J D. Battery Bimonthly, 1996(6), 276 (in Chinese). 曹佳弟. 电池, 1996(6), 276. 5 Qiu G W, Zeng Y C, Liu P. Joural of Shanghai Electirc Technology, 2011, 4(1), 54. 邱广玮, 曾乐才, 刘平. 上海电气技术, 2011, 4(1), 54(in Chinese). 6 Song S F, Yin W Y, Lu W. Dongfang Electric Review, 2011, 25(4), 28(in Chinese). 宋树丰, 阴宛珊, 卢苇. 东方电气评论, 2011, 25(4), 28. 7 Liu S L, Sun Y Z, Zhang M J, et al. Power Supply Technology, 2013, 37(8), 1481(in Chinese). 刘肃力, 孙洋洲, 张敏吉, 等. 电源技术, 2013, 37(8), 1481. 8 Huang P, Hong Y F, Zhu C F, et al. Plating and Finishing, 2016, 38(2), 6(in Chinese). 黄攀, 洪永飞, 朱承飞, 等. 电镀与精饰, 2016, 38(2), 6. 9 Knğdler R R. Journal of Applied Electrochemistry, 1988, 18(4), 653. 10 Bao J M, Xu Z C, Gong M G, et al. Power Supply Technology, 2018, 42(8), 1193(in Chinese). 鲍剑明, 徐中超, 龚明光, 等. 电源技术, 2018, 42(8), 1193. 11 Zhang X W, Li H C, Li S Y, et al. Petro-Chemical Equipment, 2019, 48(2), 12(in Chinese). 张学文, 李洪川, 李生云, 等. 石油化工设备, 2019, 48(2), 12. 12 Patel K, Sadeghilaridjani M, Pole M, et al. Solar EnergyMaterials and Solar Cells, 2021, 230(8), 111222. 13 Li J. Electrochemical impedance study of thermal corrosion of salt film of several metal materials. Ph. D. Thesis, Changsha University of Science and Technology, China, 2006 (in Chinese). 李杰. 几种金属材料的盐膜热腐蚀的电化学阻抗研究. 博士学位论文, 中国科学院金属研究所, 2006. 14 Hang B, Wang Y X, Wei F H, et al. Technology Innovation and Application, 2019(27), 29(in Chinese). 杭博, 王永霞, 魏飞虎, 等. 科技创新与应用, 2019(27), 29. 15 He Y W, Li Y C, Zhang H L, et al. Material Protection, 2016, 49(5), 18(in Chinese). 何玉武, 李宇春, 张宏亮, 等. 材料保护, 2016, 49(5), 18. 16 Sotelo-Mazon O, Cuevas-Arteaga C, Porcayo-Calderón J, et al. Current Analytical Chemistry, 2016, 12(6), 602. 17 Zhu M, Song Z, Zhang H, et al. Solar Energy Materials and Solar Cells, 2018, 186, 200. 18 Tian Y Q, Yuan Q Y, Fu A Q, et al. Materials Reports, 2021, 35(S2), 399. 田永强, 苑清英, 付安庆, 等. 材料导报, 2021, 35(S2), 399(in Chinese). 19 Song J, Bazant M Z. Journal of the Electrochemical Society, 2012, 160(1), A15. 20 Xu D F, Chen K H, Hu G Y, et al. Materials Reports, 2020, 34(8), 8100(in Chinese). 徐道芬, 陈康华, 胡桂云, 等. 材料导报, 2020, 34(8), 8100. 21 Li J, Zeng C L. Corrosion Science and Protection Technology, 2005, 17(1), 50 (in Chinese). 李杰, 曾潮流. 腐蚀科学与防护技术, 2005, 17(1), 50. 22 Wang F, Du X D, Wu C, et al. Surface Technology, 2014, 43(6), 16(in Chinese). 汪峰, 杜晓东, 吴辰, 等. 表面技术, 2014, 43(6), 16. 23 Xie F, Wang D, Wu M, et al. Materials Reports, 2017, 31(8), 51(in Chinese). 谢飞, 王丹, 吴明, 等. 材料导报, 2017, 31(8), 51. 24 Liu Q B, Liu Z D, Guo S Y, et al. Journal of Chinese Society for Corrosion and Protection, 2021, 41(6), 883(in Chinese). 刘泉兵, 刘宗德, 郭胜洋, 等. 中国腐蚀与防护学报, 2021, 41(6), 883. 25 Kinsman K R, Winterbottom W L. Thin Solid Films, 1981, 83(4), 417. 26 Yang Y X. Study on the microstructure and thermal corrosion properties of 316 stainless steel surface laser cladding FeCrAlSi coating. Master’s Thesis, North Central University, China, 2021 (in Chinese). 杨宜鑫. 316不锈钢表面激光熔覆FeCrAlSi涂层的组织及热腐蚀性能研究. 硕士学位论文, 中北大学, 2021.