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US 2006/0051678 A1Published application
Lithium ion rechargeable battery
OwnerJong Kim, Akihiko Saitoinventors
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Abstract
A lithium ion rechargeable battery has an insulation layer positioned on a protrusion formed on both ends of a coated portion of an electrode assembly to reduce the possibility of an internal short circuit between electrode plates and to minimize the decrease in battery capacity.
Claims12
A rechargeable battery, comprising:
- an electrode assembly formed by winding a positive electrode plate and a negative electrode plate that have coated portions formed on surfaces thereof and a separator for insulating the positive electrode plate and the negative electrode plate from each other;
- and
- a protrusion that is formed on an end of the coated portion of at least one of the positive electrode plate and the negative electrode plate;
- and
- an insulation layer that substantially cover the protrusion,
- wherein the insulation layer has a through-hole formed with a predetermined shape.
3 more elements
Dependencies are inferred from the claim text.