Vent cap for a lithium battery
AssigneeDaewoo Electronics Co., Ltd.
InventorSung-Kwang Byon
Life of this patent
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Abstract
A vent cap for a lithium battery which includes an electrolyte which is in electrical contact with an anode of lithium or lithium alloy and a cathode containing at least one metallic salt is disclosed. The vent cap is shaped in a hat shape and includes a projected portion having a depression at a top side of the projected portion. The plane shape of the depression is a rectangle, and a pair of vent holes are formed by cutting two sides of the depression opposite to each other.
Claims6
A vent cap for a lithium battery which includes an electrolyte which is in electrical contact with an anode of lithium or lithium alloy and a cathode, said vent cap comprising:
- a circular flat portion;
- and
- a cylindrical projected portion projected from a central portion of said circular flat portion and disposed coaxially with said circular flat portion,
- said cylindrical projected portion having, at a top side thereof, a depression with a rectangular horizontal cross section, and a pair of vent holes formed face to face with each other by cutting two opposing sides of said depression.
A vent cap for a lithium battery which includes an electrolyte which is in electrical contact with an anode of lithium or lithium alloy and a cathode, said vent cap comprising:
- a circular flat portion;
- a cylindrical projected portion projected from a central portion of said circular flat portion and disposed coaxially with said circular flat portion, said cylindrical projected portion having, at a top side thereof, a depression with a rectangular horizontal cross section, and a pair of vent holes formed face to face with each other by cutting two opposing sides of said depression;
- and
- a blocking plate having at least one cut-out portion at its peripheral edge, said blocking plate being installed within said cylindrical projected portion in parallel with the top side of said cylindrical projected portion,
- wherein said depression has a v-shaped vertical cross section, and said vent holes have a triangular shape.
Dependencies are inferred from the claim text.