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US 8,895,180 B2Granted
Lithium polymer secondary battery with external wrapping member
AssigneeSamsung SDI Co., Ltd.
InventorsChangbum Ahn, Kyugil Choi
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Abstract
A secondary battery includes an electrode assembly comprising a first electrode, a second electrode, and a separator between the first electrode and the second electrode; an external member wrapped around a side surface of the electrode assembly; a cover coupled to the external member; and a terminal protection member between the electrode assembly and the cover.
Claims22
A secondary battery comprising:
- an electrode assembly comprising a first electrode, a second electrode, and a separator between the first electrode and the second electrode;
- an external member wrapped around the electrode assembly, the external member comprising a laminate film having a substantially rectangular sheet shape and comprising an outer layer, a shield layer, and an inner layer stacked together, wherein the external member directly contacts the electrode assembly;
- a cover directly coupled to the external member;
- a circuit board comprising a protective circuit on the cover;
- a secondary protective device spaced from the circuit board and electrically coupled to one of the first electrode and the second electrode;
- and
- a terminal protection member directly contacting the electrode assembly and the cover,
- wherein the terminal protection member comprises a flat surface and an outer wall connected to the flat surface,
- wherein the outer wall extends towards the electrode assembly from the flat surface and is coupled to the electrode assembly.
6 more elements
Dependencies are inferred from the claim text.