The cylindrical battery structure comprises a shell, a BMS (Battery
Management System) protection module, a roll core and a battery
cathode, a mounting cavity is formed in the shell, a battery
anode is arranged at one end of the shell, an opening is formed in the other end of the shell, a contact is arranged at the bottom of the BMS protection module, an
anode bulge is arranged at the top of the BMS protection module, and a
cathode side edge is arranged on the outer ring of the BMS protection module; one end of the roll core is provided with a positive
electrode end, the other end of the roll core is provided with a negative
electrode end, the roll core is arranged in the mounting cavity of the shell, the positive
electrode end is in contact with the contact for
welding, and the negative electrode of the battery is arranged at the opening of the shell; the utility model has the
advantage of effectively solving the problems of poor positioning precision, limited sealing structure, easy
electrolyte overflow to damage
electric equipment, difficult accurate control of electrode connection, easy poor contact, complex positive electrode connection, reduced production efficiency and increased
short circuit risk due to the adoption of a positive electrode part
assembly mode in the traditional process.