Preparation method of argyrodite
A technology for preparing solution, phosphorus sulfide, applied in the step of preparing solution S1 as solid electrolyte, quality and form, solution S1 contains solvent and P substance in at least 3-form, capable of solving damage, short circuit, heat generation, etc. question
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[0022] The method of the present invention is based on the preparation of a homogeneous solution comprising ionic species. Therefore, the method of the present invention does not involve a suspension.
[0023] Therefore, Li 6 PS 5 All species involved in the preparation of X are dissolved in solvent and in the form of ionic species as mentioned above.
[0024] An essential feature of the method of the invention is the temperature T1 as defined above. Therefore, the method of the present invention is carried out at low temperature, notably in order to stabilize (PS) in solution 4 ) 3- substance and thus obtain solution S1 at the required temperature.
[0025] Once solution S1 has been prepared, a step for removing at least a portion of the solvent is performed. Li is then obtained as a solid, preferably as a powder 6 PS 5 X.
[0026] Preferably, the term "at least part of the solvent" means at least 50% by weight, preferably at least 60% by weight of the solvent.
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