Matsushita Electric Industrial Co., Ltd.

Masayuki Ide

Toshihiro Inoue

Yoshie Suzuki

Yoshitaka Sunagawa

Kenji Kobayashi

Takashi Nakajima

Yoichi Kikuchi

Takurou Nakayama

Takehiro Sasaki

A sealed lead-acid storage battery having a long trickle life, being excellent in the welded strength between the container cover and the top lid covering the part of the container cover where a vent valve is provided, and having a high reliability is disclosed. The battery comprises: a container for accommodating an electrode group, a container cover for closing an open end of the container by being bonded to the open end of the container with a resin adhesive, and a top lid for covering a part of the container cover where a vent valve is provided by being bonded to the container cover by means of ultrasonic welding, wherein the container is formed with a denatured polyphenylene ether resin containing a flaky inorganic substance of humidity non-transmitting property, whereas the container cover and the top lid are formed with acrylonitrile-butadiene-styrene resin containing no flaky inorganic substance of the humidity non-transmitting property.

Sealed lead-acid storage battery

Storage battery

The present invention relates to a sealed lead acid storage battery comprising a multi-cell type monoblock battery container comprising cell chambers in each of which groups of electrode plates of the same shape are contained, and the positive and negative electrode poles at the upper portions of the groups of electrode plates are all arranged on the same side of cell chambers. Especially, all of the positive and negative electrode poles at the upper portions of the groups of electrode plates in the monoblock battery container, in which the cell chambers are arranged in two parallel rows, are arranged on the same side near the central partition, and the electrode poles of adjacent cell chambers are connected by cell connectors which cross over the partitions between the adjacent cell chambers in the battery container.

Sealed lead acid storage battery

Growing community of inventors

Aichi, Japan

Masayuki Ide