Rectangular battery
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United States of America Patent
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-
Nov 25, 2003
Grant Date -
N/A
app pub date -
Mar 24, 2000
filing date -
Mar 25, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A rectangular alkaline storage battery includes an electrode plate which can be easily prepared and has a high packing density of active material and volumetric energy density. A connected negative electrode plate with hydrogen-absorbing alloy negative electrode plates is bent into a U-shaped form at a central portion (connecting portion). A composite positive electrode plate is then sandwiched by the hydrogen-absorbing alloy negative electrode plates with a separator made of an unwoven polypropylene fabric provided interposed therebetween to prepare an electrode plate unit. Two such electrode plate units are then laminated to form a group of electrode plates.
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