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High-energy-storage-density lead-free ceramic capacitor material and preparation method thereof
The invention discloses a lead-free ceramic capacitor material with high energy storage density and a preparation method thereof, the material is proportioned according to the stoichiometric ratio of (1-x) (Na < 0.5 > Bi < 0.5 > TiO3)-x (Bi < 1/6 > Na < 1/6 > Ca < 1/6 > Sr < 1/6 > Nd < 1/6 > Li < 1/6 >) TiO3, x is the mole number, and x is more than or equal to 0 and less than or equal to 0.55. The preparation method comprises the following steps: (1) mixing Na2CO3, Bi2O3 and TiO2, and carrying out ball milling, drying and pre-sintering, so as to obtain Na0. 5Bi0. 5TiO3 powder; (2) mixing Na2CO3, Bi2O3, CaCO3, SrCO3, Li2CO3, Nd2O3 and TiO2, carrying out ball milling, drying and pre-sintering, so as to obtain (Bi < 1/6 > Na < 1/6 > Ca < 1/6 > Sr < 1/6 > Nd1/6 > Li < 1/6 >) TiO3 powder; and (3) mixing the Na < 0.5 > Bi < 0.5 > TiO < 3 > powder and the (Bi < 1/6 > Na < 1/6 > Ca < 1/6 > Sr < 1/6 > Nd < 1/6 > Li < 1/6 >) TiO < 3 > powder, carrying out ball milling, and drying to obtain the lead-free ceramic capacitor material with high energy storage density. The high-energy-storage-density lead-free ceramic capacitor material has the characteristics of ultrahigh density, high efficiency and high stability; meanwhile, the preparation method is simple, reaction conditions are easy to control, the repeatability is high, and the cost is low.
本发明公开了一种高储能密度无铅陶瓷电容器材料及其制备方法，所述材料按照(1‑x)(Na0.5Bi0.5TiO3)‑x(Bi1/6Na1/6Ca1/6Sr1/6Nd1/6Li1/6)TiO3的化学计量进行配比，其中x为摩尔数，所述x的取值范围为0≤x≤0.55。所述制备方法包括以下步骤：(1)将Na2CO3、Bi2O3、TiO2混合、球磨、烘干、预烧，得到Na0.5Bi0.5TiO3粉体；(2)将Na2CO3、Bi2O3、CaCO3、SrCO3、Li2CO3、Nd2O3、TiO2混合、球磨、烘干、预烧，得到(Bi1/6Na1/6Ca1/6Sr1/6Nd1/6Li1/6)TiO3粉体；(3)将Na0.5Bi0.5TiO3粉体和(Bi1/6Na1/6Ca1/6Sr1/6Nd1/6Li1/6)TiO3粉体混合、球磨、烘干，得到所述的高储能密度无铅陶瓷电容器材料。该高储能密度无铅陶瓷电容器材料具有超高密度、高效率、高稳定性的特点，同时制备方法简单，反应条件容易控制、可重复性高、成本低。
High-energy-storage-density lead-free ceramic capacitor material and preparation method thereof
The invention discloses a lead-free ceramic capacitor material with high energy storage density and a preparation method thereof, the material is proportioned according to the stoichiometric ratio of (1-x) (Na < 0.5 > Bi < 0.5 > TiO3)-x (Bi < 1/6 > Na < 1/6 > Ca < 1/6 > Sr < 1/6 > Nd < 1/6 > Li < 1/6 >) TiO3, x is the mole number, and x is more than or equal to 0 and less than or equal to 0.55. The preparation method comprises the following steps: (1) mixing Na2CO3, Bi2O3 and TiO2, and carrying out ball milling, drying and pre-sintering, so as to obtain Na0. 5Bi0. 5TiO3 powder; (2) mixing Na2CO3, Bi2O3, CaCO3, SrCO3, Li2CO3, Nd2O3 and TiO2, carrying out ball milling, drying and pre-sintering, so as to obtain (Bi < 1/6 > Na < 1/6 > Ca < 1/6 > Sr < 1/6 > Nd1/6 > Li < 1/6 >) TiO3 powder; and (3) mixing the Na < 0.5 > Bi < 0.5 > TiO < 3 > powder and the (Bi < 1/6 > Na < 1/6 > Ca < 1/6 > Sr < 1/6 > Nd < 1/6 > Li < 1/6 >) TiO < 3 > powder, carrying out ball milling, and drying to obtain the lead-free ceramic capacitor material with high energy storage density. The high-energy-storage-density lead-free ceramic capacitor material has the characteristics of ultrahigh density, high efficiency and high stability; meanwhile, the preparation method is simple, reaction conditions are easy to control, the repeatability is high, and the cost is low.
本发明公开了一种高储能密度无铅陶瓷电容器材料及其制备方法，所述材料按照(1‑x)(Na0.5Bi0.5TiO3)‑x(Bi1/6Na1/6Ca1/6Sr1/6Nd1/6Li1/6)TiO3的化学计量进行配比，其中x为摩尔数，所述x的取值范围为0≤x≤0.55。所述制备方法包括以下步骤：(1)将Na2CO3、Bi2O3、TiO2混合、球磨、烘干、预烧，得到Na0.5Bi0.5TiO3粉体；(2)将Na2CO3、Bi2O3、CaCO3、SrCO3、Li2CO3、Nd2O3、TiO2混合、球磨、烘干、预烧，得到(Bi1/6Na1/6Ca1/6Sr1/6Nd1/6Li1/6)TiO3粉体；(3)将Na0.5Bi0.5TiO3粉体和(Bi1/6Na1/6Ca1/6Sr1/6Nd1/6Li1/6)TiO3粉体混合、球磨、烘干，得到所述的高储能密度无铅陶瓷电容器材料。该高储能密度无铅陶瓷电容器材料具有超高密度、高效率、高稳定性的特点，同时制备方法简单，反应条件容易控制、可重复性高、成本低。
High-energy-storage-density lead-free ceramic capacitor material and preparation method thereof
一种高储能密度无铅陶瓷电容器材料及其制备方法
WANG CHUNCHANG (author) / CAO WENJUN (author)
2024-11-12
Patent
Electronic Resource
Chinese
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