陶瓷电解质及制作方法、全固态锂金属电池及制备方法

By mixing lithium source crystals, garnet-type solid electrolytes, and low-melting-point ionic crystals to form a ceramic electrolyte, the problem of lithium dendrite penetration is solved, achieving efficient ion transport and improved battery safety.

CN116053570BActive Publication Date: 2026-07-17TSINGHUA SHENZHEN INTERNATIONAL GRADUATE SCHOOL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TSINGHUA SHENZHEN INTERNATIONAL GRADUATE SCHOOL
Filing Date
2022-11-22
Publication Date
2026-07-17

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Abstract

本发明提供了陶瓷电解质及制作方法、全固态锂金属电池及制备方法，陶瓷电解质的制作方法包括以下步骤：将锂源晶体、石榴石型固态电解质、低熔点离子晶体、氧化铝分散在溶剂中，球磨至颗粒细化并均匀分散，得到分散液。去除所述分散液中的溶剂，得到均匀混合的复合粉末；处理所述复合粉末使其粒径均匀，并将得到的粒径均匀的复合粉末冷压成片体；在容器中放入所述片体及石榴石型固态电解质与锂源晶体混合的粉末，使所述粉末把所述片体包埋，将所述容器置于加热装置中烧结；降温至室温得到陶瓷电解质。本发明能够使锂镧锆氧在烧结过程中引入低熔点锂离子晶体，使其在高温下填充片体晶界，抑制晶界碳酸锂的生成，大幅提升石榴石型电解质抑制锂枝晶能力。
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