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Method for improving ionic conductivity of solid electrolyte LLZO
The invention provides a method for improving ionic conductivity of solid electrolyte LLZO. The method comprises the following steps: calcining lanthanum oxide in a muffle furnace to remove impurities; taking out raw materials including lithium hydroxide monohydrate, lanthanum oxide and zirconium oxide required for preparing LLZO and doped raw materials including gallium oxide and tantalum oxide, mixing according to a certain atomic ratio, and then carrying out ball milling, drying and sieving; putting the mixed raw materials into a muffle furnace to be calcined, and enabling the raw materials to react to form LLZO; carrying out ball milling, drying and sieving on the LLZO mother powder obtained after calcining; putting the LLZO mother powder into a mold to be pressed into a wafer, putting the wafer into a muffle furnace to be sintered, and after sintering is completed, using abrasive paper for polishing to remove surface residues. The method for improving the ionic conductivity of the LLZO is the simple method for improving the ionic conductivity of the LLZO, so that the ionic conductivity of the LLZO is improved by more than one order of magnitude. The design has the advantage that the key electrochemical performance of LLZO can be improved only through a doping method.
本发明提供一种提高固态电解质LLZO离子电导率的方法，在马弗炉中煅烧氧化镧以除去杂质；取出制备LLZO所需的原料一水合氢氧化锂、氧化镧和氧化锆以及掺杂原料氧化镓和氧化钽，以一定的原子比混合后进行球磨、烘干以及过筛；将混合后的原料放入马弗炉中煅烧，使原料发生反应形成LLZO；再次对煅烧后获得的LLZO母粉进行球磨、烘干以及过筛；LLZO母粉放入模具中压制成圆片，将圆片放入马弗炉中进行烧结，烧结完成后用砂纸打磨除去表面残渣。所述提高LLZO离子电导率的方法为寻找一种简便的提高LLZO离子电导率的方法，使LLZO的离子电导率获得一个数量级以上的提升。该设计的优点在于仅通过掺杂方法就可以提高LLZO的关键电化学性能。
Method for improving ionic conductivity of solid electrolyte LLZO
The invention provides a method for improving ionic conductivity of solid electrolyte LLZO. The method comprises the following steps: calcining lanthanum oxide in a muffle furnace to remove impurities; taking out raw materials including lithium hydroxide monohydrate, lanthanum oxide and zirconium oxide required for preparing LLZO and doped raw materials including gallium oxide and tantalum oxide, mixing according to a certain atomic ratio, and then carrying out ball milling, drying and sieving; putting the mixed raw materials into a muffle furnace to be calcined, and enabling the raw materials to react to form LLZO; carrying out ball milling, drying and sieving on the LLZO mother powder obtained after calcining; putting the LLZO mother powder into a mold to be pressed into a wafer, putting the wafer into a muffle furnace to be sintered, and after sintering is completed, using abrasive paper for polishing to remove surface residues. The method for improving the ionic conductivity of the LLZO is the simple method for improving the ionic conductivity of the LLZO, so that the ionic conductivity of the LLZO is improved by more than one order of magnitude. The design has the advantage that the key electrochemical performance of LLZO can be improved only through a doping method.
本发明提供一种提高固态电解质LLZO离子电导率的方法，在马弗炉中煅烧氧化镧以除去杂质；取出制备LLZO所需的原料一水合氢氧化锂、氧化镧和氧化锆以及掺杂原料氧化镓和氧化钽，以一定的原子比混合后进行球磨、烘干以及过筛；将混合后的原料放入马弗炉中煅烧，使原料发生反应形成LLZO；再次对煅烧后获得的LLZO母粉进行球磨、烘干以及过筛；LLZO母粉放入模具中压制成圆片，将圆片放入马弗炉中进行烧结，烧结完成后用砂纸打磨除去表面残渣。所述提高LLZO离子电导率的方法为寻找一种简便的提高LLZO离子电导率的方法，使LLZO的离子电导率获得一个数量级以上的提升。该设计的优点在于仅通过掺杂方法就可以提高LLZO的关键电化学性能。
Method for improving ionic conductivity of solid electrolyte LLZO
一种提高固态电解质LLZO离子电导率的方法
CUI DAXIANG (Autor:in) / ZHOU LIN (Autor:in) / ZHANG FANG (Autor:in) / LI TIANHAO (Autor:in) / LI MENGFEI (Autor:in) / LIU PENGFEI (Autor:in) / BIAN YUNCHAO (Autor:in)
26.11.2021
Patent
Elektronische Ressource
Chinesisch
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