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Normal-pressure sintering method of high-performance garnet structure lithium ion solid electrolyte sheet
The invention discloses a normal-pressure sintering method of a high-performance garnet structure lithium ion solid electrolyte sheet, which is characterized in that secondarily recycled buried powder is filled in a gap between an electrolyte green body and a crucible wall and is buried and capped, so that not only is the cost saved, but also a semi-sealed sintering environment with uniform temperature and high lithium steam concentration is formed; the loss of internal lithium is reduced, the lithium ion migration activation energy of the electrolyte is reduced, the electrolyte is sintered uniformly and compactly, and a pure cubic phase solid electrolyte sheet sintered body is obtained; and the improvement of the sintering performance of the electrolyte is promoted by adjusting the lithium adding parameters of the bottom buried powder.
本发明公开了一种高性能石榴石结构锂离子固态电解质片的常压烧结方法，将二次回收的埋粉填充电解质生坯与坩埚壁之间的缝隙并掩埋封顶，不仅节约了成本，而且形成了温度均匀和高锂蒸汽浓度的半密封式烧结环境，减少了内部锂的流失，降低电解质的锂离子迁移活化能，使电解质烧结均匀且致密，得到纯立方相的固态电解质片烧结体；通过调整底部埋粉的锂添加参数，促进电解质烧结性能的提升。
Normal-pressure sintering method of high-performance garnet structure lithium ion solid electrolyte sheet
The invention discloses a normal-pressure sintering method of a high-performance garnet structure lithium ion solid electrolyte sheet, which is characterized in that secondarily recycled buried powder is filled in a gap between an electrolyte green body and a crucible wall and is buried and capped, so that not only is the cost saved, but also a semi-sealed sintering environment with uniform temperature and high lithium steam concentration is formed; the loss of internal lithium is reduced, the lithium ion migration activation energy of the electrolyte is reduced, the electrolyte is sintered uniformly and compactly, and a pure cubic phase solid electrolyte sheet sintered body is obtained; and the improvement of the sintering performance of the electrolyte is promoted by adjusting the lithium adding parameters of the bottom buried powder.
本发明公开了一种高性能石榴石结构锂离子固态电解质片的常压烧结方法，将二次回收的埋粉填充电解质生坯与坩埚壁之间的缝隙并掩埋封顶，不仅节约了成本，而且形成了温度均匀和高锂蒸汽浓度的半密封式烧结环境，减少了内部锂的流失，降低电解质的锂离子迁移活化能，使电解质烧结均匀且致密，得到纯立方相的固态电解质片烧结体；通过调整底部埋粉的锂添加参数，促进电解质烧结性能的提升。
Normal-pressure sintering method of high-performance garnet structure lithium ion solid electrolyte sheet
一种高性能石榴石结构锂离子固态电解质片的常压烧结方法
GAO JIE (Autor:in) / YANG GUODONG (Autor:in) / MIAO LEI (Autor:in) / WANG XIAOYANG (Autor:in) / JIANG YUANYUAN (Autor:in) / ZUO JUNJIE (Autor:in)
01.10.2024
Patent
Elektronische Ressource
Chinesisch
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