Electrode plate, method for manufacturing the electrode plate, and secondary battery having the electrode plate

摘要

An electrode plate of a secondary battery includes an electrode current collector, an active material coated portion on at least one surface of the electrode current collector, and an uncoated portion on the electrode current collector, the uncoated portion including pressed portions extending from a boundary of the active material coated portion and the uncoated portion to a distance on the uncoated portion in a widthwise direction of the electrode current collector.

主权项

1. An electrode plate of a secondary battery, the electrode plate comprising:
an electrode current collector; an active material coated portion on at least one surface of the electrode current collector; and an uncoated portion on the electrode current collector, the uncoated portion including pressed portions extending from a boundary of the active material coated portion and the uncoated portion to a distance on the uncoated portion in a widthwise direction of the electrode current collector, wherein the pressed portions include a plurality of creases extending from the boundary of the active material coated portion and the uncoated portion, and wherein the plurality of creases are shorter than the uncoated portions in a widthwise direction of the electrode current collector, as measured along a normal to the boundary of the active material coated portion and the uncoated portion.