High-energy-density pole piece structure capable of increasing tensile strength of pole piece

• Main Author: SU PENGBO
• Format: Patent
• Language: Chinese; English
• Published: 07.06.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The invention is applicable to the related technical field of battery pole pieces, and provides a high-energy density pole piece structure capable of increasing the tensile strength of pole pieces, the high-energy density pole piece structure comprises a positive pole piece, a negative pole piece and current collectors of the positive pole piece and the negative pole piece, the current collectors are coated with active substances, and the areas, coated with the active substances, of the current collectors form material areas; a negative electrode material area and a positive electrode material area are respectively arranged on the corresponding negative electrode piece and the positive electrode piece which is separated from the negative electrode piece through a diaphragm, a diaphragm is also arranged on the outer side of the negative electrode material area, the positive electrode material area extends to the outside from a notch of the negative electrode material area and is connected with a foil material,