19010479. BUTTON CELL AND ELECTRONIC DEVICE (Ningde Amperex Technology Limited)
BUTTON CELL AND ELECTRONIC DEVICE
Organization Name
Ningde Amperex Technology Limited
Inventor(s)
BUTTON CELL AND ELECTRONIC DEVICE
This abstract first appeared for US patent application 19010479 titled 'BUTTON CELL AND ELECTRONIC DEVICE
Original Abstract Submitted
A button cell includes an electrode assembly, a first tab, and a second tab. The electrode assembly includes a first electrode plate and a second electrode plate; the first electrode plate and the second electrode plate are stacked and wound in a spiral shape around a central axis. A first current collector of the first electrode plate includes a first starting edge and a first ending edge. A first connection segment of the first tab has a first centerline; a second connection segment of the second tab has a second centerline; viewed from the first direction, a line connecting the first centerline and the central axis is a third virtual line, a line connecting the second centerline and the central axis is a fourth virtual line; an acute angle formed between the third virtual line and the fourth virtual line is α, where 90°≤α≤180°.