| 摘要 |
A secondary battery cell (1) and a winding formation system (2) thereof. The secondary battery cell (1) comprises an anode pole piece (101), an anode tab (102), a cathode pole piece (103), a cathode tab (104) and an isolation film (105). The winding formation system (2) of the secondary battery cell comprises a working platform (201), a winding mechanism (202), an anode pole piece payout roller (203), an anode pole piece cleaning mechanism (204), an anode pole piece die cut mechanism (205), an anode tab feeding mechanism (206), an anode tab connecting mechanism (207), an anode pole piece conveying mechanism (208), a cathode pole piece payout roller (209), a cathode pole piece cleaning mechanism (210), a cathode pole piece die cut mechanism (211), a cathode tab feeding mechanism (212), a cathode tab connecting mechanism (213), a cathode pole piece conveying mechanism (214), a first isolation film payout roller (215 A), a second isolation film payout roller (215 B), a first isolation film conveying mechanism (216 A) and a second isolation film conveying mechanism (216 B). The second battery cell (1) manufactured by the winding formation system (2) of the secondary battery cell can effectively prevent the occurrence of internal short-circuit in the second battery cell (1), and the safety of the second battery cell (1) is improved while high energy density is guaranteed. |
