1湿法球磨制备光伏太阳能电池片用片状银粉的工艺研究朱健罗恒刘萍廖亚琴*东方电气集团科学技术研究院有限公司,成都611731摘要:虽然湿法球磨制备片状银粉的工艺在行业内已有应用,但相对于干法球磨,湿法的工艺条件,如球磨介质,球料比,研磨频率等影响因素与成型后银粉成片效果并没有成熟的系统性研究,本文采用湿法球磨将微纳米级球形银粉制备成片状银粉,探究了无水乙醇用量、球料比、球磨频率对片状银粉形貌和片径分布的影响。实验发现:无水乙醇用量40wt.%Ag时,可吸收球磨过程中产生的热量,同时减少冷焊和叠片现象,粒径分布较窄且可控;球料比和球磨频率的增大可增强球形银粉的片化效率;无水乙醇用量40wt.%Ag、球料比9比1、球磨频率25Hz/30Hz时,可保证较高的片化率,粒径可控且分布较窄,集中分布在1至4μm。关键词:片状银粉;湿法球磨;无水乙醇用量;球料比;球磨频率中图分类号:TB383.1文献标识码:A文章编号:1001-9006(2022)04-0001-04PreparationofFlakeSilverPowderforPhotovoltaicSolarCellsbyWetBallMillingZHUJian,LUOHeng,LIUPing,LIAOYaqing*(DECAcademyofScienceandTechnologyCo.,Ltd.,611731,Chengdu,China)Abstract:Micronanosphericalsilverpowderwaspreparedintoflakesilverpowderbywetballmilling.Theeffectsofanhydrousethanoldosage,ballmaterialratioandballmillingfrequencyonthemorphologyanddiameterdistributionofflakesilverpowderwereinvestigated.Itisfoundthatwhen40wt.%Agisusedwithoutwater,itcanabsorbtheheatgeneratedintheprocessofballmilling,reducecoldweldingandlamination,andtheparticlesizedistributionisnarrowandcontrollable;Theflakeefficiencyofsphericalsilverpowdercanbeenhancedwiththeincreaseofballmaterialratioandballmillingfrequency;Whentheamountofanhydrousethanolis40wt.%Ag,theballmaterialratiois9:1,andtheballmillingfrequencyis25hz/30hz,thehigherfragmentationratecanbeguaranteed.Theparticlesizeiscontrollableandthedistributionisnarrow;whichisconcentratedin1to4μmKeywords:flakesilverpowder;wetballmilling;alcoholconsumption;ballmaterialratio;ballmillingfrequency1收稿日期:2022-07-12作者简介:朱健(1983-),男,工程师,硕士,主要从事导电粉体及电子浆料应用研究。廖亚琴(1982-),女,高级工程师,博士,主要从事导电粉体开发。通讯邮...