초록 ▼

A lithium secondary battery capable of preventing explosion or firing caused by the increase of inner pressure due to misusage is disclosed. The lithium secondary battery includes an electrode assembly having an anode plate, a cathode plate and a separator, a package having a receiving portion for r

A lithium secondary battery capable of preventing explosion or firing caused by the increase of inner pressure due to misusage is disclosed. The lithium secondary battery includes an electrode assembly having an anode plate, a cathode plate and a separator, a package having a receiving portion for receiving the electrode assembly and sealed and filled with electrolyte together with the electrode assembly, and an adhesive layer at least partially formed on an outer surface of the package. The lithium secondary battery functions as an explosion-proof safety device for preventing the package from exploding due to abrupt breakage of the package when the package is expanded due to the increase of inner pressure of the battery over a critical value.

대표청구항 ▼

What is claimed is: 1. A lithium secondary battery comprising:an electrode assembly having an anode plate, a cathode plate and a separator, the anode plate and the cathode plate being respectively connected to an anode tap and a cathode tap;a package having a receiving portion for receiving the elec

What is claimed is: 1. A lithium secondary battery comprising:an electrode assembly having an anode plate, a cathode plate and a separator, the anode plate and the cathode plate being respectively connected to an anode tap and a cathode tap;a package having a receiving portion for receiving the electrode assembly, the receiving portion being scaled and filled with electrolyte together with the electrode assembly, the package being adapted to be put into a pack having anode and cathode terminals, the anode tap and the cathode tap being protruded from the package; andan adhesive coating layer at least partially coated on a substantial portion of an outer surface of an outer layer of the package, except for the anode tap and the cathode tap, for restraining shrinkage or expansion of the package.