COVER ASSEMBLY AND LITHIUM ION BATTERY COMPRISING THE SAME

摘要

A cover assembly and a lithium ion battery comprising the same are provided. The cover assembly comprises: a sealing cover plate (3) for sealing an opening end of a shell of a battery; a ceramic sealing member (2) fixedly disposed in at least a first via hole formed in the sealing cover plate (3) which is insulated from the sealing cover plate (3); and an electrode terminal (1) fixedly disposed in a second via hole formed in the ceramic sealing member (2) for leading out a current from the battery, in which the electrode terminal (1) is electrically insulated from the sealing cover plate (3) by the ceramic sealing member (2).