Electrical battery assembly and method of manufacture
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United States of America Patent
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Jul 4, 2006
Grant Date -
May 15, 2003
app pub date -
Aug 15, 2002
filing date -
Oct 18, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention provides electrical storage battery assemblies and related methods for assembling such batteries. A battery assembly includes positive and negative electrode sheets and separator sheets sandwiched together and wrapped around a central mandrel to provide a spiral sandwich electrode assembly. The electrode assembly is housed inside a case that includes a case housing open at two ends and covers closing the two openings. The central mandrel of the electrode assembly is in electrical contact with one of the electrode sheets and a first battery terminal that passes through the case. A projecting member on the central mandrel provides the electrical connection between the electrode and the first battery terminal. The other electrode is in electrical contact with the case. A first insulator lies between the electrode assembly and the projecting member. A second insulator is positioned between the projecting member and the case.
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