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High-conductivity solid electrolyte lithium lanthanum zirconium oxide powder preparation and ceramic sintering method
The invention discloses a high-conductivity solid electrolyte lithium lanthanum zirconium oxide powder preparation and ceramic sintering method. The method comprises the following steps: synthesizingmixed particles with certain proportion distribution at normal temperature in one step by using a co-deposition method and using water as a solvent under a weakly alkaline condition; regulating and controlling the proportion of the reaction speed by adding a precipitant into the system to enable the reaction particles to be controllable, and drying the precipitate and calcining the dried precipitate to obtain the high-crystallinity coprecipitation powder; and adding a sintering aid, performing mixing, performing drying, carrying out dry pressing, and performing sintering at 1200-1500 DEG C toobtain the compact lithium lanthanum zirconium oxide. The method is suitable for synthesis of ultrafine powder, close packing is obtained, the biscuit density is improved, sintering shrinkage is reduced, and the production process is improved. The powder prepared by the method can be used in the field of preparation of high-density solid electrolyte.
本发明公开了一种高导电固态电解质锂镧锆氧粉体制备及陶瓷烧结方法，利用共沉积法，在弱碱性条件下，采用水为溶剂，在常温下一步合成具有一定比例分布的的混合颗粒；通过在体系中添加沉淀剂用量调控反应速度的比例，使反应颗粒可控，将沉淀物烘干和煅烧可获得高结晶度的共沉淀粉体。再加入烧结助剂，经混合，干燥，干压后1200~1500℃烧结得到致密的锂镧锆氧。本发明适用于超细粉体的合成，得到紧密堆积，提高素坯密度，减少烧结的收缩，改善生产工艺。该发明制备的粉体可用于制备高致密度固态电解质领域。
High-conductivity solid electrolyte lithium lanthanum zirconium oxide powder preparation and ceramic sintering method
The invention discloses a high-conductivity solid electrolyte lithium lanthanum zirconium oxide powder preparation and ceramic sintering method. The method comprises the following steps: synthesizingmixed particles with certain proportion distribution at normal temperature in one step by using a co-deposition method and using water as a solvent under a weakly alkaline condition; regulating and controlling the proportion of the reaction speed by adding a precipitant into the system to enable the reaction particles to be controllable, and drying the precipitate and calcining the dried precipitate to obtain the high-crystallinity coprecipitation powder; and adding a sintering aid, performing mixing, performing drying, carrying out dry pressing, and performing sintering at 1200-1500 DEG C toobtain the compact lithium lanthanum zirconium oxide. The method is suitable for synthesis of ultrafine powder, close packing is obtained, the biscuit density is improved, sintering shrinkage is reduced, and the production process is improved. The powder prepared by the method can be used in the field of preparation of high-density solid electrolyte.
本发明公开了一种高导电固态电解质锂镧锆氧粉体制备及陶瓷烧结方法，利用共沉积法，在弱碱性条件下，采用水为溶剂，在常温下一步合成具有一定比例分布的的混合颗粒；通过在体系中添加沉淀剂用量调控反应速度的比例，使反应颗粒可控，将沉淀物烘干和煅烧可获得高结晶度的共沉淀粉体。再加入烧结助剂，经混合，干燥，干压后1200~1500℃烧结得到致密的锂镧锆氧。本发明适用于超细粉体的合成，得到紧密堆积，提高素坯密度，减少烧结的收缩，改善生产工艺。该发明制备的粉体可用于制备高致密度固态电解质领域。
High-conductivity solid electrolyte lithium lanthanum zirconium oxide powder preparation and ceramic sintering method
一种高导电固态电解质锂镧锆氧粉体制备及陶瓷烧结方法
CUI DAXIANG (author) / ZHANG FANG (author) / WANG YAKUN (author) / GE MEIYING (author) / LU YUYING (author)
2020-12-08
Patent
Electronic Resource
Chinese
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