RECHARGEABLE BATTERY, METHOD FOR MANUFACTURING RECHARGEABLE BATTERY, AND COLLECTOR PLATE FOR RECHARGEABLE BATTERY
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United States of America Patent
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N/A
Issued Date -
Apr 26, 2007
app pub date -
Oct 19, 2006
filing date -
Oct 21, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A rechargeable battery for eliminating the need for attaching a joining metal member to a collector plate, while lowering the cost for forming collector plates and lowering resistance in the collector plate and in a joining portion. The rechargeable battery includes an electrode plate group formed by alternately superimposing positive electrode plates having positive electrode plate collector portions and negative electrode plates having negative electrode plate collector portions with separators arranged therebetween. Collector plates, formed by metal plates, are joined to the corresponding positive and negative electrode plate collector portions. Each collector plate is bent at a predetermined portion to form a joining portion having a ridge-shaped cross-section. The joining portion of each collector plate is pressed into the edge of the corresponding electrode plate collector portion and joined to the electrode plate collector portion by performing resistance welding.
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