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Preparation method of garnet type oxide solid electrolyte membrane
The invention discloses a preparation method of a garnet type oxide solid electrolyte membrane. The preparation method comprises the following steps: S1, mixing and refining a lithium source, a lanthanum source, a zirconium source and raw materials needing to be doped, and drying to obtain precursor powder; s2, performing high-temperature sintering on the precursor powder for the first time to obtain a precursor; s3, grinding and crushing the precursor, and carrying out second high-temperature sintering to obtain electrolyte raw powder; s4, carrying out particle size refining on the electrolyte raw powder, and then drying and sieving to obtain the electrolyte raw powder; s5, performing biscuit pressing or film casting on the electrolyte raw powder to obtain a sheet body; s6, placing the sheet body on a lining plate, and covering the lining plate with a crucible B and a crucible C; and S7, performing high-temperature sintering in a high-temperature furnace to obtain the garnet type oxide solid electrolyte membrane. The method has the advantages of simplicity in operation, low cost and high airtightness, is suitable for sintering of various garnet type oxide electrolyte materials, can realize preparation of high-density electrolyte membranes, and provides important guarantee for accurate characterization of intrinsic characteristics of the materials.
本发明公开了一种石榴石型氧化物固态电解质膜的制备方法，包括以下步骤：S1、将锂源、镧源、锆源及所需掺杂的原料混合细化，烘干后得到前驱体粉体；S2、前驱体粉体进行第一次高温烧结得到前驱体；S3、将前驱体研磨粉碎后进行第二次高温烧结得到电解质原粉；S4、将电解质原粉进行粒度细化后烘干过筛，得到电解质原粉；S5、将电解质原粉进行素坯压制或流延成膜，得到片体；S6、将片体置于衬板上，罩上坩埚B和坩埚C；S7、置于高温炉中进行高温烧结，得到石榴石型氧化物固态电解质膜；优点是操作简单、成本低廉且具有高密闭性，适合于针对各类石榴石型氧化物电解质材料的烧结，可实现高密度电解质膜片制备，并为准确表征材料本征特性提供重要保证。
Preparation method of garnet type oxide solid electrolyte membrane
The invention discloses a preparation method of a garnet type oxide solid electrolyte membrane. The preparation method comprises the following steps: S1, mixing and refining a lithium source, a lanthanum source, a zirconium source and raw materials needing to be doped, and drying to obtain precursor powder; s2, performing high-temperature sintering on the precursor powder for the first time to obtain a precursor; s3, grinding and crushing the precursor, and carrying out second high-temperature sintering to obtain electrolyte raw powder; s4, carrying out particle size refining on the electrolyte raw powder, and then drying and sieving to obtain the electrolyte raw powder; s5, performing biscuit pressing or film casting on the electrolyte raw powder to obtain a sheet body; s6, placing the sheet body on a lining plate, and covering the lining plate with a crucible B and a crucible C; and S7, performing high-temperature sintering in a high-temperature furnace to obtain the garnet type oxide solid electrolyte membrane. The method has the advantages of simplicity in operation, low cost and high airtightness, is suitable for sintering of various garnet type oxide electrolyte materials, can realize preparation of high-density electrolyte membranes, and provides important guarantee for accurate characterization of intrinsic characteristics of the materials.
本发明公开了一种石榴石型氧化物固态电解质膜的制备方法，包括以下步骤：S1、将锂源、镧源、锆源及所需掺杂的原料混合细化，烘干后得到前驱体粉体；S2、前驱体粉体进行第一次高温烧结得到前驱体；S3、将前驱体研磨粉碎后进行第二次高温烧结得到电解质原粉；S4、将电解质原粉进行粒度细化后烘干过筛，得到电解质原粉；S5、将电解质原粉进行素坯压制或流延成膜，得到片体；S6、将片体置于衬板上，罩上坩埚B和坩埚C；S7、置于高温炉中进行高温烧结，得到石榴石型氧化物固态电解质膜；优点是操作简单、成本低廉且具有高密闭性，适合于针对各类石榴石型氧化物电解质材料的烧结，可实现高密度电解质膜片制备，并为准确表征材料本征特性提供重要保证。
Preparation method of garnet type oxide solid electrolyte membrane
一种石榴石型氧化物固态电解质膜的制备方法
ZHAO FENGDONG (author) / TANG GUANGSHENG (author) / LIN JIU (author) / CUI YANMING (author) / TU HAOCHI (author) / ZHANG FAHONG (author) / LI YIHUI (author) / GE ZHIMIN (author)
2024-10-25
Patent
Electronic Resource
Chinese
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