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High-entropy lead-free energy storage ceramic material as well as preparation method and application thereof
The invention discloses a high-entropy lead-free energy storage ceramic material and a preparation method and application thereof. The preparation method comprises the following steps: S1, weighing: respectively weighing precursor raw materials according to a stoichiometric ratio for later use; s2, primary ball milling: mixing the weighed precursor raw materials and then carrying out ball milling; s3, pre-sintering: pre-sintering the slurry subjected to ball milling; s4, secondary ball milling: carrying out ball milling on the pre-sintered raw materials again, and drying to obtain pre-sintered ceramic powder; s5, molding: adding a binder into the pre-sintered ceramic powder, and then carrying out compression molding to obtain a ceramic blank; s6, glue discharging and sintering: heating the obtained ceramic green body, and then carrying out heat preservation treatment to obtain a glue-discharged green body; and then, sintering the rubber-removed green body. According to the magnesium-lanthanum co-doped high-entropy ceramic strategy, the relaxation behavior and voltage breakdown resistance of the ceramic material are remarkably improved, the polarization intensity is improved, meanwhile, high energy storage density and high energy storage efficiency are achieved, and the prepared high-entropy ceramic is good in comprehensive performance.
本发明公开了一种高熵无铅储能陶瓷材料及其制备方法和应用，制备方法包括如下步骤：S1、称量：按计量比分别称取各前驱体原料，备用；S2、一次球磨：将称取的各前驱体原料混合后进行球磨；S3、预烧：将球磨后的浆料进行预烧；S4、二次球磨：将预烧后的原料再次进行球磨，烘干后得预烧陶瓷粉体；S5：成型：向预烧陶瓷粉体中加入粘结剂，随后进行压制成型，得陶瓷胚体；S6、排胶与烧结：对所得陶瓷胚体加热后进行保温处理，得排胶生胚；随后对所述排胶生胚进行烧结。本发明中镁镧共掺杂高熵陶瓷策略，显著增加了陶瓷材料弛豫行为和抗电压击穿能力，提高了极化强度，同时实现了高储能密度和高储能效率，所制得的高熵陶瓷综合性能佳。
High-entropy lead-free energy storage ceramic material as well as preparation method and application thereof
The invention discloses a high-entropy lead-free energy storage ceramic material and a preparation method and application thereof. The preparation method comprises the following steps: S1, weighing: respectively weighing precursor raw materials according to a stoichiometric ratio for later use; s2, primary ball milling: mixing the weighed precursor raw materials and then carrying out ball milling; s3, pre-sintering: pre-sintering the slurry subjected to ball milling; s4, secondary ball milling: carrying out ball milling on the pre-sintered raw materials again, and drying to obtain pre-sintered ceramic powder; s5, molding: adding a binder into the pre-sintered ceramic powder, and then carrying out compression molding to obtain a ceramic blank; s6, glue discharging and sintering: heating the obtained ceramic green body, and then carrying out heat preservation treatment to obtain a glue-discharged green body; and then, sintering the rubber-removed green body. According to the magnesium-lanthanum co-doped high-entropy ceramic strategy, the relaxation behavior and voltage breakdown resistance of the ceramic material are remarkably improved, the polarization intensity is improved, meanwhile, high energy storage density and high energy storage efficiency are achieved, and the prepared high-entropy ceramic is good in comprehensive performance.
本发明公开了一种高熵无铅储能陶瓷材料及其制备方法和应用，制备方法包括如下步骤：S1、称量：按计量比分别称取各前驱体原料，备用；S2、一次球磨：将称取的各前驱体原料混合后进行球磨；S3、预烧：将球磨后的浆料进行预烧；S4、二次球磨：将预烧后的原料再次进行球磨，烘干后得预烧陶瓷粉体；S5：成型：向预烧陶瓷粉体中加入粘结剂，随后进行压制成型，得陶瓷胚体；S6、排胶与烧结：对所得陶瓷胚体加热后进行保温处理，得排胶生胚；随后对所述排胶生胚进行烧结。本发明中镁镧共掺杂高熵陶瓷策略，显著增加了陶瓷材料弛豫行为和抗电压击穿能力，提高了极化强度，同时实现了高储能密度和高储能效率，所制得的高熵陶瓷综合性能佳。
High-entropy lead-free energy storage ceramic material as well as preparation method and application thereof
一种高熵无铅储能陶瓷材料及其制备方法和应用
GUO JINMING (author) / ZHENG ZIHAO (author) / ZHANG HAO (author) / LI DENGFENG (author)
2024-12-13
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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