Apparatus for dissolving lithium salt powder

An apparatus for dissolving lithium salt powder, comprising:

• a closed reactor (10) configured to supply an electrolyte solution for preparing a liquid electrolyte;
• a powder hopper (20) configured to supply lithium salt powder;
• a dissolution chamber (30) configured to forcibly mix the electrolyte solution and the lithium salt powder and allow the resulting mixture to be circulated toward the reactor (10);
• a powder supply pipe (40) configured to connect the powder hopper (20) and the dissolution chamber (30);
• and
• a solution discharge pipe (50) and a solution return pipe (60) configured to connect the reactor (10) and the dissolution chamber (30),
• wherein a hopper standing frame (70) configured to support the powder hopper so that the powder hopper stands upright in a state in which a powder outlet (22) is positioned at the bottom and the hopper standing frame is installed around the powder hopper (20), the hopper standing frame (70) is detachably loaded on a hopper vibrating unit (80) configured to impart vibrations to the powder hopper (20), and the powder outlet (22) is connected to the powder supply pipe (40) by a vibration-proof connection pipe (23) made of a vibration-absorbing elastomer.