一种高压大容量非固体电解质钽电容器的研究  

Research on a high voltage and large capacity non solid electrolyte tantalum capacitor

作　　者：刘建清 袁艳丰 徐震宇 LIU Jianqing;YUAN Yanfeng;XU Zhenyu(Zhuzhou Hongming Riwang Electronic Science and Technology Co.,Ltd.,Zhuzhou 412007,Hunan Province,China)

机构地区：[1]株洲宏明日望电子科技股份有限公司,湖南株洲412007

出　　处：《电子元件与材料》2020年第8期96-100,共5页Electronic Components And Materials

摘　　要：以非固体电解质钽电解电容器CA35型额定电压160 V电容量100μF产品为代表规格进行试验,通过对电容器生产工艺中钽粉、压制密度、烧结条件、赋能条件及凝胶工作电解质进行优化分析,确定了最佳工艺,探索了一种制备高压大容量非固体电解质钽电容器的方法。着重分析研究了工作电解质闪火电压与硅溶胶之间的关系,硅溶胶经树脂过滤后配制的凝胶工作电解质闪火电压得到提高,从而有效提升了产品合格率、电性能与寿命性能,解决了高压大容量非固体电解质钽电容器难以通过寿命试验的难题,为该领域关键电子元器件国产化实现了新的突破。Orthogonal test was carried out on CA35-160 V 100μF capacitors.By optimizing the content of the tantalum powder,pressing density,sintering condition,energizing condition and gel working electrolyte in the capacitor production process,the best process was determined.The relationship between the flash voltage of the working electrolyte and the silica sol was analyzed.The flash voltage of the gel electrolyte was increased with the purified silica sol,which effectively improved the yield,electrical performance and life performance of the capacitor.The life test qualification of non-solid electrolyte tantalum capacitors was improved,which is a breakthrough for the localization of key electronic components in this field.

关 键 词：非固体电解质 钽电容器 硅溶胶 高电压 闪火电压 

分 类 号：TQ174[化学工程—陶瓷工业]