Abstract: A lithium secondary battery includes a negative electrode, a positive electrode positioned opposite to the negative electrode, a separator disposed between the negative electrode and the positive electrode, and a non-aqueous electrolyte, wherein the negative electrode includes a silicon-based active material, the silicon-based active material comprises a compound represented by SiOx, wherein 0?x<2, the non-aqueous electrolyte includes a lithium salt, an organic solvent, and an additive, the additive includes a first additive and a second additive, the first additive includes a coumarin-based compound represented by Formula 1, and the second additive includes at least one of lithium fluoromalonato(difluoro)borate (LiFMDFB), lithium difluoro(oxalato)borate (LiDFOB), lithium difluorophosphate (LiDFP), or lithium difluorobis-(oxalate)phosphate (LiDFOP): wherein R and n are described herein.

Abstract: The present invention relates to an eddy current sensor for detecting a crack in a battery cell, and a system for detecting a crack of a battery cell including the eddy current sensor. According to the present invention, it is possible to easily detect a crack generated in an electrode, an electrode tab or a welded portion.

Abstract: The present disclosure relates to a composition for encapsulating an organic electronic element and an organic electronic device comprising the same, and provides an encapsulation composition which can form an encapsulation structure capable of effectively blocking moisture or oxygen introduced from the outside into the organic electronic device, thereby securing the lifespan of the organic electronic device and implementing endurance reliability of the encapsulation structure at high temperature and high humidity, and has high shape retainability, and an organic electronic device comprising the same.

Abstract: The present disclosure relates to an encapsulation film and an organic electronic device comprising the same, which provides an encapsulation film having excellent resilience without causing plastic deformation, while having flexible and rollable characteristics, as well as implementing excellent moisture barrier characteristics, and an organic electronic device comprising the same. The encapsulation film includes an encapsulation composition which includes a block copolymer having a first block derived from a monomer having a glass transition temperature of 0° C. or higher, and a multifunctional oligomer, where, after the encapsulation film is stretched 200% (2 times the existing length) in the longitudinal direction under conditions of a temperature of 25° C. and 60% relative humidity and left for 24 hours, the degree of restoration at the time of removing the stretched force and measuring the length after 1 hour is within 110% of the existing length.

Abstract: The present invention discloses an adhesive composition, and a polarizing plate and liquid crystal display device including the same. More particularly, there are provided an adhesive composition which includes an acrylic copolymer having a functional group cross-linkable with isocyanate, a toluene diisocyanate-based cross-linking agent and an organic acid stabilizer, to inhibit a change in viscosity so as to improve storage stability and assure a sufficient pot-life, which in turn, improves process stability but reduces a curing time, thereby enhancing productivity, as well as a polarizing plate and liquid crystal display device including the same.