Patent ID: 6218045
Filing Date: 2001-04-17
Classification: H01M,Y02E

Abstract:
A sealed lead-acid storage battery comprising a container for accommodating an electrode group, a container cover for closing an open end of said container by being bonded to the open end of said container with a resin adhesive, and a top lid for covering a part of said container cover where a vent valve is provided by being bonded to said container by ultrasonic welding, wherein said container is formed with a denatured polyphenylene ether resin containing a flaky inorganic substance of humidity non-transmitting property, and said container cover and said top lid are formed with acrylonitrile-butadiene-styrene resin containing no flaky inorganic substance of humidity non-transmitting property, and wherein a portion of the top lid is bonded to said container cover thereby forming a gap between said top lid and said container cover for releasing gas.