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US 2003/0211388 A1Published application
Battery
AssigneeQuallion LLC
InventorsAlan Ruth, Andy Szyszkowski, Clay Kishiyama, Hiroyuki Yumoto, Hisashi Tsukamoto
Life of this patent
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Abstract
A lithium ion battery configured to yield a high energy density output by minimizing head space, i.e., wasted interior volume, within the battery case and/or by reducing electrical energy losses internal to the battery.
Claims4
A battery comprising:
- a tubular metal case defining upper and lower open ends;
- a metal member mounted in said case proximate to said upper end and electrically insulated therefrom;
- an electrode assembly having a plurality of first polarity tabs extending in a first direction therefrom and a plurality of second polarity tabs extending in a second direction therefrom;
- said plurality of first polarity tabs being electrically connected to said metal member;
- said plurality of second polarity tabs being electrically connected to said case proximate to said lower end;
- and
- first and second end caps for respectively sealing said upper and lower ends.
4 more elements
A battery comprising:
- a tubular metal case having open first and second ends and defining an interior volume;
- a dielectric member mounted in said case adjacent to said first open end;
- a metal member supported by said dielectric member;
- an electrode assembly comprising a first polarity electrode strip and a second polarity electrode strip helically wound together with a separator strip between adjacent layers;
- a first plurality of first polarity metal tabs connected to spaced points along said first polarity electrode strip;
- a second plurality of second polarity metal tabs connected to spaced points along said second polarity electrode strip;
- said first and second pluralities of metal tabs extending in opposite directions from said electrode assembly;
- said electrode assembly mounted in said interior volume with said first plurality of tabs electrically connected to said metal member and with said second plurality of tabs pinched between the case second end and a metal end cap secured to said case second end.
5 more elements
Dependencies are inferred from the claim text.