CPC H01M 4/366 (2013.01) [H01M 4/0404 (2013.01); H01M 4/139 (2013.01); H01M 4/62 (2013.01); H01M 10/0562 (2013.01); H01M 2300/008 (2013.01)] | 16 Claims |
1. A method of coating a solid electrolyte of a solid-state battery, the method comprising:
putting an electrode active material and a sulfide-based solid electrolyte into a rotating mixer;
operating the rotating mixer to rotate in a first direction while the rotating mixer revolves in a second direction, wherein the first direction is an opposite direction to the second direction; and
coating a surface of the electrode active material with the sulfide-based solid electrolyte in the rotating mixer during the operating the rotating mixer, to form a solid electrolyte layer on the surface of the electrode active material,
wherein the electrode active material and the solid electrolyte layer form a uniform core-shell structure,
wherein the rotating mixer revolves around a rotation axis,
wherein shear stress of about 0.10 MPa to about 0.25 MPa is applied to the rotation axis, and
wherein a revolving speed of the rotating mixer is set to about 1500 rpm to about 2000 rpm, and a revolving radius of the rotating mixer is set to about 85 mm to about 100 mm.
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