Title:
安全性が改善された円柱形の二次電池
Document Type and Number:
Japanese Patent JP5577405
Kind Code:
B2
Abstract:
Provided is a cylindrical battery in which an electrode assembly fabricated by rolling a cathode/separator/anode and an electrolyte are provided in a cylindrical can, wherein a cap assembly mounted on the opening top of the cylindrical can comprises: a safety vent provided with a predetermined notch, to allow breakage due to high-pressure gas of the battery, a current interruptive device to interrupt current, welded to the bottom of the safety vent, and a gasket for the current interruptive device to surround the periphery of the current interruptive device, wherein the current interruptive device comprises two or more through holes to allow exhaustion of gas, wherein the through holes have a size of 20 to 50% with respect to the total area of the current interruptive device.
Inventors:
チ Yong Kim
チュンチン Kim
クァン ソォ イ
Sun John Kim
ソリョン Kim
チャフン ク
ドクヒュン Rieu
ビュン キュ Jun
チュンチン Kim
クァン ソォ イ
Sun John Kim
ソリョン Kim
チャフン ク
ドクヒュン Rieu
ビュン キュ Jun
Application Number:
JP2012524651A
Publication Date:
August 20, 2014
Filing Date:
August 13, 2010
Export Citation:
Assignee:
Elgey Kem Limited
International Classes:
H01M2/34; H01M2/04; H01M2/08; H01M2/12; H01M2/26; H01M10/0567
Attorney, Agent or Firm:
Shinya Jitsuhiro
Takashi Watabe
Takashi Watabe