Solid-state battery lithium metal negative electrode sheet production device

• Main Authors: XIA SHANWEI, BAI LONGJIA, LIN JUGUANG, WANG BO
• Format: Patent
• Language: Chinese; English
• Published: 31.03.2023
• Subjects: BASIC ELECTRIC ELEMENTS; CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING,CUTTING-OUT, STAMPING-OUT OR SEVERING; ELECTRICITY; HAND CUTTING TOOLS; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SEVERING; TRANSPORTING

The utility model discloses a solid-state battery lithium metal negative electrode production device which comprises a lithium metal unwinding mechanism, a mylar film winding mechanism, a tab pressing mechanism, a tab dotting mechanism, a circular drum mechanism, a cutting device and a plurality of passing rollers, the lithium metal sheet production step comprises the processes of lithium metal unwinding, mylar winding, tab pressing, tab dotting, rotary material pulling, laser sheet production and vacuum belt conveying; wherein pole piece pressing and pole piece dotting do not need intermittent movement of lithium metal, continuous movement can be achieved, and efficiency is guaranteed; through rotary material pulling, enough contact area between the pole piece and the rotary suction plate is ensured, enough small acting force on lithium metal in unit area is ensured, and damage to the lithium metal is reduced; the continuous operation can be ensured through rotary material pulling, and the pole piece product