Mintz Levin Cohn Ferris Glovsky and Popeo, P.C.
Safety device for preventing overcharging of battery
A safety device for preventing overcharging of a battery includes: a battery stack including a plurality of cells; a safety circuit connected to two or more cells and provided with an electrical conduction control unit that controls electrical conduction; and a closed circuit disposed between the cells connected to the safety circuit and provided with a switching unit which is switched on or off upon cell swelling, such that when cell swelling occurs, the switching unit is switched on by a pressing force, disabling the electrical conduction control unit of the safety circuit so electrical conduction between the cells is established via the switching unit, and when cell swelling occurs again, the switching unit is switched off, cutting off the electrical conduction between the cells.
Hyundai Motor Company
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H01M H01M Y02E H01M H01M
inventional inventional additional additional additional
Yong Jin Hae Kyu Yoon Cheol Jun Seok Jeong Hun
Lee Lim Jeon Choi Seo