电子元件与材料2025，Vol.44Issue(9)：1034-1041,8.DOI:10.14106/j.cnki.1001-2028.2025.0009
烧结温度对粉末积层型电极箔性能影响的探究
The effects of sintering temperature on the powder layered electrode foils
摘要
Abstract
Compared to traditional etched foils,powder-layered electrode foils show superior performance metrics along with an environmentally friendy fabrication process.Although considerable research has been devoted to their preparation methodologies,the temperature-dependent microstructural evolution during sintering remains insufficiently explored.This work systematically investigates how sintering temperature(615-655 ℃)governs the microstructure and electrochemical properties of the powder-architected aluminum electrode foils fabricated using 3-4 μm aluminum particles.Three pivotal findings were revealed as follows:First,sintering neck evolution follows volume diffusion kinetics with pronounced temperature dependence,leading to deteriorated structural uniformity at elevated temperatures.Second,an exponential decrease in specific surface area occurs due to progressive pore channel occlusion.Third,the optimal sintering temperature of 625 ℃ yields a breakdown voltage of 574 V(+18.3％enhancement),a specific capacitance of 1.002 μF/cm2,and reduced dielectric breakdown probability.Microstructural analysis demonstrates that moderate sintering necks(1216-1640 nm)within the 615-635 ℃ temperature range preserve graded pore distribution,whereas excessively high temperatures induce significant porosity reduction caused by localized melting.The established ternary correlation among sintering temperature,microstructure,and performance provides fundamental guidelines for precision manufacturing of high-performance dielectric foils.This study conclusively demonstrates the critical role of sintering temperature in electrode foil engineering,highlighting that sintering temperature must be tailored according to the aluminum powder particle size in developing advanced powder-layered electrode systems.关键词
电极箔/铝粉烧结/烧结温度/比表面积/比电容Key words
electrode foils/aluminum powder sintering/sintering temperature/specific surface area/specific capacitance分类
动力与电气工程引用本文复制引用
李合克,贾俊仁,董行,游彭飞,董晓红..烧结温度对粉末积层型电极箔性能影响的探究[J].电子元件与材料,2025,44(9):1034-1041,8.基金项目
国家重点研发计划(2024YFB3411500) （2024YFB3411500）
新疆维吾尔自治区重点研发计划(2023B01016) （2023B01016）
新疆维吾尔自治区中央引导地方科技发展资金(ZYYD2023A07) （ZYYD2023A07）
