Pouch-type lithium secondary battery and fabrication method thereof
AssigneeSamsung SDI Co., Ltd.
InventorsHyun-Jei Chung, Hyung-Bok Lee
Life of this patent
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Abstract
A pouch-type lithium secondary battery including a battery unit having a positive electrode plate, a negative electrode plate, and a separator between the positive and negative electrode plates; electrode tabs extending from each of the positive and negative electrode plates of the battery unit, respectively; a case having a space to accommodate the battery unit; a sealing surface along the periphery of the space; and a protection circuit board electrically connected to the electrode tabs, wherein portions of each of the electrode tabs extend outside the case, and are bent in an upright position with respect to a plane of the sealing surface.
Claims20
A pouch-type lithium secondary battery comprising:
- a battery unit comprising:
- a positive electrode plate,
- a separator, and
- a negative electrode plate,
- wherein the separator is disposed between the positive and negative electrode plates;
- electrode tabs extending from the positive and negative electrode plates of the battery unit;
- a case having a space to accommodate the battery unit and a sealing surface formed along the periphery of the space, wherein the case is sealed at the sealing surface by thermal fusion;
- and
- a protection circuit board electrically connected to the electrode tabs,
- wherein the protection circuit board is disposed in an approximately upward position with respect to planes of the sealing surfaces of the case.
A battery including a battery unit having a positive electrode plate, a separator, and a negative electrode plate wound together with the separator being disposed between the positive and negative electrode plates and electrode tabs extending from the electrode plates, the battery comprising:
- a case, having a space with a thickness to accommodate the battery unit, the case including upper and lower portions to be sealed at sealing surfaces formed along the peripheries of the upper and lower portions such that portions of the electrode tabs emerge therefrom;
- and
- a protection circuit board, having a long axis, to be coupled to the electrode tabs and disposed with the long axis being substantially parallel with a direction of the thickness of the case.
A battery including a battery unit having a positive electrode plate, a separator, and a negative electrode plate wound together with the separator being disposed between the positive and negative electrode plates and electrode tabs extending from the electrode plates, the battery comprising:
- a case, having a space with a thickness to accommodate the battery unit, the case including upper and lower portions to be sealed at planar sealing surfaces formed along the peripheries of the upper and lower portions such that portions of the electrode tabs emerge therefrom;
- and
- a protection circuit board, having a long axis, to be coupled to the electrode tabs and disposed with the long axis being substantially perpendicular with the plane of the sealing surfaces.
Dependencies are inferred from the claim text.