A sealing assembly of a battery, a method for fabricating the sealing assembly and a lithium ion battery are provided. A camera couples to the supplemental arm. Warnings for each processing unit are propagated to an exception register in a front end monitoring unit. Consequently, the securing device is unable to detach from the tablet device. The passage is adapted to be at least partially blocked by the light averse insects to shield the cavity, and hence the light sensor means, from light from the passage. According to the invention, the widths of two or more grooves positioned one after the other in a series in one of the connecting surfaces increase progressively from a first groove to a last groove in the series.