RUBBER VALVE FOR LITHIUM ION BATTERY AND LITHIUM ION BATTERY COMPRISING THE SAME

摘要

A rubber valve for a lithium ion battery may be provided. The rubber valve may comprise: an upper projecting portion (11); a columnar portion (12) having an end connected with the upper projecting portion (11); and a lower projecting portion (13) connected with the other end of the columnar portion (12). A gas venting groove (14) may be formed into a projecting surface of the lower projecting portion (13) dividing the projecting surface into at least two parts. A lithium ion battery comprising the same may also be provided.