Electrode assembly and rechargeable battery including the same
AssigneeSamsung SDI Co., Ltd.
InventorWon Joon SONG
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Abstract
An electrode assembly and a battery including the same are disclosed. An electrode assembly is formed by winding a laminate having a separator interposed between a positive electrode plate and a negative electrode plate a plurality of times to have a winding center, wherein a cutting shape at a winding end portion of the separator has a shape in which an upper end is removed.
Claims20
An electrode assembly formed by winding a laminate having a separator interposed between a positive electrode plate and a negative electrode plate a plurality of times to have a winding center,
- wherein a cutting shape at a winding end portion of the separator has a shape in which an upper end is removed.
An electrode assembly formed by winding a laminate having a separator interposed between a positive electrode plate and a negative electrode plate a plurality of times to have a winding center,
- wherein the separator has an overhang portion with respect to the positive electrode plate and the negative electrode plate in a longitudinal direction, and
- a width of an upper end of the overhang portion is smaller than a width of a central portion of the separator.
A battery comprising:
- a can having a cylindrical shape and an opening having an open upper side;
- an electrode assembly formed by winding a laminate having a separator interposed between a positive electrode plate and a negative electrode plate a plurality of times to have a winding center;
- and
- a cap assembly joined to an upper end of the can to cover the opening,
- wherein a cutting shape at a winding end portion of the separator has a shape in which an upper end is removed.
Dependencies are inferred from the claim text.