Rechargeable battery
View Patent ↗A rechargeable battery includes a case containing an electrode assembly and an electrolyte solution; a cap plate sealing the case; an electrode terminal electrically coupled to the electrode assembly and extending through the cap plate; and a seal gasket positioned between the electrode terminal and the cap plate, wherein the seal gasket has a beveled edge extending around a circumference of the seal gasket.
1. A rechargeable battery comprising:
a case containing an electrode assembly and an electrolyte solution;
a cap plate sealing the case;
an electrode terminal electrically coupled to the electrode assembly and extending through the cap plate; and
a seal gasket enclosed within the case and cap plate and located between the electrode terminal and the cap plate; and
a first insulator contacting a lower surface of the cap plate,
wherein the seal gasket comprises:
a body positioned between the electrode terminal and the cap plate; and
a flange extending away from the body and contacting the lower surface of the cap plate, wherein the flange has a beveled edge located on an outermost periphery of the flange, wherein the beveled edge contacts the first insulator.
2. The rechargeable battery of claim 1 , wherein at least one protrusion or at least one groove contacting the cap plate is located on the flange.
3. The rechargeable battery of claim 1 , wherein at least one protrusion or at least one groove contacting the flange is located on the cap plate.
4. The rechargeable battery of claim 1 , wherein the electrode terminal comprises:
a terminal body penetrating the body of the seal gasket; and
a terminal extension extending from the terminal body and contacting the flange of the seal gasket.
5. The rechargeable battery of claim 1 , wherein the beveled edge includes at least one protrusion or groove.
6. The rechargeable battery of claim 1 , wherein the first insulator has a beveled edge generally corresponding to the beveled edge of the seal gasket.
7. The rechargeable battery of claim 1 , wherein the first insulator has a groove coupled to the electrode terminal.
8. The rechargeable battery of claim 1 , wherein the first insulator has at least one protrusion or at least one groove adhered to the beveled edge of the seal gasket.
9. The rechargeable battery of claim 1 , wherein the cap plate has a groove coupled to the first insulator.
10. The rechargeable battery of claim 1 , wherein the electrode terminal has a first insulator and a second insulator coupled thereto, both the first insulator and the second insulator contacting the cap plate.
11. The rechargeable battery of claim 10 , wherein the cap plate has a groove coupled to the second insulator.
12. The rechargeable battery of claim 10 , wherein the electrode terminal has a terminal plate coupled thereto, the terminal plate contacting the second insulator.
13. The rechargeable battery of claim 12 , wherein the second insulator has a groove coupled to the terminal plate.