Abstract: Disclosed herein is a battery cell including an electrode assembly of a cathode/separator/anode structure mounted in a receiving part of a battery case (cell case). The cell case is provided, at a predetermined region of the cell case corresponding to the upper end interface of the electrode assembly while the electrode assembly is mounted in the receiving part, with a small groove for pressing against the upper end of the electrode assembly to prevent the upward movement of the electrode assembly. The small groove is continuously formed in parallel with the upper end of the electrode assembly.

Abstract: A system, a method, and an article of manufacture for determining an estimated combined battery state-parameter vector are provided. The method determines the estimated combined battery state-parameter vector based on a plurality of predicted the combined battery state-parameter vectors, a plurality of predicted battery output vectors, and a battery output vector.

Abstract: A system, a method, and an article of manufacture for determining an estimated combined battery state-parameter vector are provided. The method determines the estimated combined battery state-parameter vector based on a plurality of predicted the combined battery state-parameter vectors, a plurality of predicted battery output vectors, and a battery output vector.

Abstract: Provided is a functional adhesive including or a mixture thereof, wherein the flavonoid-based compound, the polyphenol-based compound, or the steroid-based compound has a molecular weight of 250 to 1000. The functional adhesive has a low concentration of VOCs and HCHO, and also facilitates a low concentration of VOCs in products to which the functional adhesive is applied.

Abstract: Disclosed herein is a secondary battery constructed in a structure in which an electrode assembly having a cathode/separator/anode structure is mounted in a sheet-type battery case having a receiving part defined therein, the sheet-type battery case is sealed by thermal welding, and sealing parts are formed entirely along the edge of the receiving part by the thermal welding. The sealing parts are perpendicularly bent such that the sealing parts are brought into tight contact with a side wall of the receiving part. Cathode and anode terminals are positioned at two different sealing parts about the receiving part, respectively. When external forces are applied to the secondary battery, the safety of the secondary battery is improved, and the occurrence of a short circuit is effectively prevented.

Abstract: Disclosed herein is a battery cell including an electrode assembly of a cathode/separator/anode structure mounted in a receiving part of a battery case (cell case). The cell case is provided, at a predetermined region of the cell case corresponding to the upper end interface of the electrode assembly while the electrode assembly is mounted in the receiving part, with a small groove for pressing against the upper end of the electrode assembly to prevent the upward movement of the electrode assembly. The small groove is continuously formed in parallel with the upper end of the electrode assembly.

Abstract: Disclosed is an electrolyte for a secondary battery comprising an electrolyte salt and an electrolyte solvent, the electrolyte further comprising a lactam-based compound substituted with an electron withdrawing group (EWG) at the nitrogen position thereof. The electrolyte allows formation of a firm and dense SEI film on the surface of an anode, minimizes irreversible oxidative decomposition at a cathode, and thus can provide a battery with significantly improved lifespan, stability and high temperature characteristics.

Abstract: Disclosed herein is a secondary battery which comprises a film (“safety film”) including expansible graphite that generates inflammable gas at a high temperature and polyurethane that causes an endothermic reaction and generates char at a high temperature. The safety film is disposed in the battery. The secondary battery according to the present invention has effects in that the safety film can be easily attached to a region of the secondary battery where the operating components of the secondary battery are not affected, and the secondary battery exhibiting excellent inflammability is manufactured without deteriorating the efficiency of the secondary battery.