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Efficient preparation method of sulfur halide compound solid electrolyte
The invention discloses a preparation method of an efficient sulfur halide compound solid electrolyte. The preparation method comprises the following steps: weighing Li2S, P2S5 and X-containing lithium salt according to a required stoichiometric ratio; weighing a grinding medium; the preparation method comprises the following steps: adding raw materials into a vacuum ball milling tank, filling argon into the ball milling tank, and performing primary ball milling in a positive pressure state; vacuumizing and heating the ball milling tank, and carrying out secondary ball milling; cooling the ball-milling tank, filling argon, and carrying out third-time ball-milling to obtain uniformly mixed solid electrolyte precursor slurry; drying the solid electrolyte precursor slurry under the protection of an inert atmosphere; and sintering the dried solid electrolyte precursor at high temperature, cooling, grinding and screening to obtain the sulfur halide compound solid electrolyte with high ionic conductivity. The sulfur halide compound solid electrolyte prepared by the invention has relatively high ionic conductivity and a relatively wide electrochemical window. In addition, compared with a traditional preparation method, the method has the potential of large-scale production.
本发明公开一种高效的硫卤化合物固态电解质制备方法，包括：按所需化学计量比称取Li2S、P2S5，和含X的锂盐；称取研磨介质；将原料加入真空球磨罐中，先对球磨罐充氩气，并在正压状态下一次球磨；后将球磨罐抽真空并加热，进行二次球磨；后将球磨罐冷却后充氩气进行三次球磨，得到混合均匀的固态电解质前驱体浆料；将固态电解质前驱体浆料在惰性气氛保护下烘干；将烘干后的固态电解质前驱体进行高温烧结，冷却后进行研磨筛分，得到高离子电导率的硫卤化合物固态电解质。本发明制得的硫卤化合物固态电解质具有较高的离子电导率和较宽的电化学窗口。此外，该方法相比于传统的制备方法，更具有规模化生产的潜力。
Efficient preparation method of sulfur halide compound solid electrolyte
The invention discloses a preparation method of an efficient sulfur halide compound solid electrolyte. The preparation method comprises the following steps: weighing Li2S, P2S5 and X-containing lithium salt according to a required stoichiometric ratio; weighing a grinding medium; the preparation method comprises the following steps: adding raw materials into a vacuum ball milling tank, filling argon into the ball milling tank, and performing primary ball milling in a positive pressure state; vacuumizing and heating the ball milling tank, and carrying out secondary ball milling; cooling the ball-milling tank, filling argon, and carrying out third-time ball-milling to obtain uniformly mixed solid electrolyte precursor slurry; drying the solid electrolyte precursor slurry under the protection of an inert atmosphere; and sintering the dried solid electrolyte precursor at high temperature, cooling, grinding and screening to obtain the sulfur halide compound solid electrolyte with high ionic conductivity. The sulfur halide compound solid electrolyte prepared by the invention has relatively high ionic conductivity and a relatively wide electrochemical window. In addition, compared with a traditional preparation method, the method has the potential of large-scale production.
本发明公开一种高效的硫卤化合物固态电解质制备方法，包括：按所需化学计量比称取Li2S、P2S5，和含X的锂盐；称取研磨介质；将原料加入真空球磨罐中，先对球磨罐充氩气，并在正压状态下一次球磨；后将球磨罐抽真空并加热，进行二次球磨；后将球磨罐冷却后充氩气进行三次球磨，得到混合均匀的固态电解质前驱体浆料；将固态电解质前驱体浆料在惰性气氛保护下烘干；将烘干后的固态电解质前驱体进行高温烧结，冷却后进行研磨筛分，得到高离子电导率的硫卤化合物固态电解质。本发明制得的硫卤化合物固态电解质具有较高的离子电导率和较宽的电化学窗口。此外，该方法相比于传统的制备方法，更具有规模化生产的潜力。
Efficient preparation method of sulfur halide compound solid electrolyte
一种高效的硫卤化合物固态电解质制备方法
LIU FANGYANG (author) / LIU HANZHOU (author) / ZHANG ZONGLIANG (author)
2022-03-11
Patent
Electronic Resource
Chinese
| European Patent Office | 2024
| European Patent Office | 2020
| European Patent Office | 2024
| European Patent Office | 2024