Rechargeable battery
AssigneeSamsung SDI Co., Ltd.
InventorsSang-Won Byun, Yong-Sam Kim, Masanori Kogure
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Abstract
A rechargeable battery includes: an electrode group including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode; a case housing the electrode group; a cap-up electrically connected with the electrode group and combined with the case; a vent plate installed below the cap-up and having a notch; and a heterogeneous metallic member installed between the cap-up and the vent plate and made of a clad metal, whereby the stability and outputting of the rechargeable battery can be improved.
Claims20
A rechargeable battery comprising:
- an electrode group comprised of a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode;
- a case housing the electrode group;
- a cap-up electrically connected with the electrode group and combined with the case;
- a vent plate installed below the cap-up and comprising a notch;
- and
- a heterogeneous metallic member installed between the cap-up and the vent plate and made of a clad metal.
A rechargeable battery comprising:
- an electrode group;
- a case housing the electrode group;
- a cap-up electrically connected with the electrode group and positioned on the case wherein the cap-up includes a mounting surface formed of a first material having a first melting temperature;
- a vent plate installed below the cap-up wherein the vent plate defines a notch and wherein the vent plate includes a mounting surface formed of a second material having a second melting temperature lower than the first melting temperature;
- a coupling member that is interconnected between the vent plate and the cap-up, wherein the coupling member has a first layer that is formed of a first material which has a third melting temperature and a second layer that is formed of a second material that has a fourth melting temperature wherein the first material is welded to the cap-up and the third melting temperature is higher than the fourth melting temperature and the second layer is heat coupled to the vent plate.
Dependencies are inferred from the claim text.