| 摘要 |
<p>Disclosed are a lithium sulfide powder which can be used for inorganic solid electrolytes and a method for producing such a lithium sulfide powder. An inorganic solid electrolyte using such a lithium sulfide powder is also disclosed which is excellent in electrochemical characteristics such as ionic conductivity and decomposition voltage. The lithium sulfide powder is characterized in that the relative intensity ratio {(b/a) x 100} between the diffraction peak (a) of the (111) surface of lithium sulfide and the diffraction peak (b) of the (101) surface of lithium hydroxide is not more than 3 in an X-ray diffraction analysis, and in that the SiO2 content is not more than 50 ppm.</p> |
