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US 9,040,193 B2Granted
Cap assembly and rectangular type secondary battery having the cap assembly
AssigneeSamsung SDI Co., Ltd.
InventorsJung-Il Nam, Heang-Lea Cho, Young-Hoon Kim
Life of this patent
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Abstract
In a cap assembly and a rectangular type secondary battery having the cap assembly, the cap assembly includes a cap plate made of a metallic or nonmetallic material, a hollow, low-melting point glass metal tube inserted into a hole formed in the cap plate, and a metallic or nonmetallic pin inserted into the hollow glass metal tube, wherein the cap plate, the glass metal tube and the pin are atomically bonded with one another at their contact areas by high-temperature heating.
Claims20
A cap assembly for a battery, the cap assembly comprising;
- a cap plate, said cap plate perforated by an orifice;
- a nonconductive glass metal tube inserted into the orifice of said cap plate, said tube being hollow and being formed of a gelled mixture of a particulate glass and metal, the mixture being hardened by heat to form the glass metal tube;
- a pin inserted through said tube, said tube, said cap plate and said pin being atomically bonded together along their respective contact areas;
- and
- a ring positioned to surround the orifice and terminate one end of said tube and separate the cap plate from a head of the pin that terminates the pin, and laterally opposite sides of the ring respectively engaging the head of the pin and an edge of the cap plate defining a periphery of the orifice, respectively.
2 more elements
A battery, comprising:
- an electrode plate assembly formed by winding a positive electrode and a negative electrode separated by a separator;
- a battery case for accommodating said electrode plate assembly;
- and
- a cap assembly;
- said cap assembly comprising:
- a cap plate, said cap plate perforated by an orifice, said cap plate hermetically sealing said battery case;
- a nonconductive tube inserted through the orifice of said cap plate, said tube being a hollow and being formed of glass and metal;
- a pin terminated by a head, the pin being inserted through said tube said cap plate, said tube, and said pin being atomically bonded together at their respective contact areas by high-temperature heating;
- and
- a ring positioned to extend beyond a junction formed by a periphery of the orifice and the cap plate and terminate one end of said tube and separate the cap plate from a head of the pin that terminates the pin, and laterally opposite sides of the ring respectively engaging the head of the pin and an edge of the cap plate defining a periphery of the orifice, respectively.
7 more elements
Dependencies are inferred from the claim text.