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Doped garnet type lithium ion solid electrolyte and preparation method and application thereof
The invention provides a doped garnet type lithium ion solid electrolyte as well as a preparation method and application thereof. The preparation method comprises the following steps: preparing a pure-phase cubic phase garnet type lithium ion solid electrolyte; crushing the pure-phase cubic-phase garnet-type lithium-ion solid electrolyte, and sequentially carrying out second mixing, second homogenizing and second drying on the crushed cubic-phase garnet-type lithium-ion solid electrolyte and raw materials containing doping elements to obtain second mixture powder; and molding the second mixture powder into a sheet shape, and carrying out second calcination to obtain the doped garnet type lithium ion solid electrolyte ceramic sheet. The technical problem to be solved is how to provide the doped garnet type lithium ion solid electrolyte, so that the doped garnet type lithium ion solid electrolyte can avoid the problems that a crystal growth mode is damaged due to introduction of a dopant in the prior art, so that the grain boundary between electrolytes is increased, the grain size of the electrolytes is not uniform, and the ionic conductivity of the electrolytes is reduced. The preparation method does not destroy the growth of the crystal, and is easy for large-scale production and popularization.
本发明提供一种掺杂的石榴石型锂离子固态电解质及制备方法和应用。所述制备方法包括以下步骤：制备纯相的立方相石榴石型锂离子固态电解质；将纯相的立方相石榴石型锂离子固态电解质破碎，与包含掺杂元素的原料依次进行第二混合、第二均化和第二干燥，得第二混合物粉末；将第二混合物粉末成型为片状，进行第二煅烧，得到掺杂的石榴石型锂离子固态电解质陶瓷片。所解决的技术问题是如何提供一种掺杂的石榴石型锂离子固态电解质，使其能够避免现有技术中因为掺杂物的引入而导致晶体生长模式被破坏，从而避免电解质间晶界增加、电解质晶粒尺寸不均匀，电解质离子电导率降低等问题；本发明的制备方法既不会破坏晶体的生长，还容易大规模生产推广。
Doped garnet type lithium ion solid electrolyte and preparation method and application thereof
The invention provides a doped garnet type lithium ion solid electrolyte as well as a preparation method and application thereof. The preparation method comprises the following steps: preparing a pure-phase cubic phase garnet type lithium ion solid electrolyte; crushing the pure-phase cubic-phase garnet-type lithium-ion solid electrolyte, and sequentially carrying out second mixing, second homogenizing and second drying on the crushed cubic-phase garnet-type lithium-ion solid electrolyte and raw materials containing doping elements to obtain second mixture powder; and molding the second mixture powder into a sheet shape, and carrying out second calcination to obtain the doped garnet type lithium ion solid electrolyte ceramic sheet. The technical problem to be solved is how to provide the doped garnet type lithium ion solid electrolyte, so that the doped garnet type lithium ion solid electrolyte can avoid the problems that a crystal growth mode is damaged due to introduction of a dopant in the prior art, so that the grain boundary between electrolytes is increased, the grain size of the electrolytes is not uniform, and the ionic conductivity of the electrolytes is reduced. The preparation method does not destroy the growth of the crystal, and is easy for large-scale production and popularization.
本发明提供一种掺杂的石榴石型锂离子固态电解质及制备方法和应用。所述制备方法包括以下步骤：制备纯相的立方相石榴石型锂离子固态电解质；将纯相的立方相石榴石型锂离子固态电解质破碎，与包含掺杂元素的原料依次进行第二混合、第二均化和第二干燥，得第二混合物粉末；将第二混合物粉末成型为片状，进行第二煅烧，得到掺杂的石榴石型锂离子固态电解质陶瓷片。所解决的技术问题是如何提供一种掺杂的石榴石型锂离子固态电解质，使其能够避免现有技术中因为掺杂物的引入而导致晶体生长模式被破坏，从而避免电解质间晶界增加、电解质晶粒尺寸不均匀，电解质离子电导率降低等问题；本发明的制备方法既不会破坏晶体的生长，还容易大规模生产推广。
Doped garnet type lithium ion solid electrolyte and preparation method and application thereof
掺杂的石榴石型锂离子固态电解质及制备方法和应用
YE RUN (author) / LI QING (author) / HU HENGGUANG (author) / WANG LIWEI (author) / LI YADI (author) / LI CAIXIA (author) / ZHANG CHENG (author) / LIU WENYUAN (author) / LIU ZEWEN (author) / ZHANG GUANGTAO (author)
2024-11-15
Patent
Electronic Resource
Chinese
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