Patent ID: 7879487
Filing Date: 2011-02-01
Classification: B29C,B29L,H01M,Y02E,Y10T

Abstract:
1. A rechargeable battery comprising: a housing having a housing wall; at least one cell in the housing; a contact element electrically connected to the at least one cell; and a plastic sealing element provided on the contact element, the sealing element comprising a supporting surface which lies flat against the housing wall at an interface and a second surface extending at substantially a right angle to the supporting surface; the supporting surface and the second surface of the sealing element in contact with the housing wall such that there is no open space between the sealing element and the housing wall; wherein one of the supporting surface and the housing wall is at least partially transparent for a laser beam and the other of the supporting surface and the housing wall is absorbent for the laser beam.