Japan Storage Battery Co., Ltd.

Teruhiro Hatanaka

Hiroaki Yoshida

Takefumi Inoue

Takao Omae

Kunio Yonezu

Nobutaka Imamura

Masahiko Kosai

Toshiaki Hayashi

Akio Tokunaga

Masaharu Tsubota

Naozumi Miyanaga

Kouji Kamata

Taro Naoi

Masaru Sashiki

Hideki Yamazaki

Tatsuya Iwamoto

An insulating sleeve made of ceramic hermetically fixed into an opening in a terminal supporting plate in a battery sheath made of metal, a positive terminal made of an aluminum alloy or negative terminal made of a copper alloy is inserted in the insulating sleeve, and a metallic ring is fitted over the positive terminal or negative terminal The inner edge of the metallic ring and the positive terminal or negative terminal are hermetically fixed to each other by an aluminum-based brazing metal or copper-based brazing metal and the outer edge of the metallic ring and the insulating sleeve are hermetically fixed to each other by an aluminum-based brazing metal or copper-based brazing metal

Battery

A sealed lead-acid battery which includes a container accommodating an assembled element. The assembled element has at least one electrochemically formed positive plate having a grid of an antimony-free alloy, wherein the plate is made of porous active material. The assembled element also includes at least one electrochemically formed negative plate having a grid of an antimony-free lead alloy, wherein the plate is made of a porous active material. A separator, having a plurality of projections on one or both side thereof, is inserted between the positive and negative plates. A layer of powder is placed between the positive and negative plates and around the assembled element. The powder is composed of a closely packed powder, which is acid-resistant and hydrophilic, and has gas channels within its interior. The powder is immobilized with an acid-resistant porous layer placed above the powder, wherein the porous layer is permeable to gases and liquids, and impervious to particles of the powder. Sulfuric acid electrolyte is impregnated and retained within the positive and negative plates and the powder layer in a substantially necessary and sufficient amount for charging and discharging the battery.

Sealed lead-acid battery

A sealed lead-acid battery formed by joining two halves of a battery container. Before joining, the separate halves have grids placed in adjacent recesses, separated by partition walls integral with the wall of the container half. Pairs of adjacent grids are electrically connected through the partition wall. The recesses are alternately filled with positive and negative active materials. Then the halves are joined with a porous separator in each cell of the combined halves separating positive and negative active materials.

Monoblock sealed lead-acid storage battery

Growing community of inventors

Kyoto, Japan

Teruhiro Hatanaka