Abstract: A battery cell stack of the present invention includes a plurality of battery cells and a resin layer wholly or partially in contact with an outer surface of at least one of the plurality of battery cells, wherein the resin layer includes a solvent-free adhesive and a flame retardant, and has a peel strength of 1,000 gf/in to 3,000 gf/in measured according to ASTM D3330, and a shear strength of 20 kgf/sq-in to 100 kgf/sq-in measured according to ASTM D1002, and the flame retardant includes one or more of a phosphorus-based flame retardant and a nitrogen-based flame retardant, such that the operational stability and flame retardancy may be simultaneously improved, while simplifying materials and processes necessary to manufacture the battery cell stack.

Abstract: Provided is a metal terminal block adapted for surface mounting, which includes a metal body having a three-dimensional shape, an outer surface of which includes at least one portion appropriate for vacuum pickup. The metal terminal block provided on a reel carrier through taping is picked up through the vacuum pickup on the portion of the outer surface of the metal body and is mounted on a conductive pattern of a circuit board through the surface mounting. A back surface of the metal terminal block is adhered to the conductive pattern through reflow soldering. The metal body has an insertion recess extending from a surface to an opposite surface thereto, or an insertion hole passing through a surface to an opposite surface thereto.

Abstract: The present invention relates to a multi-amplifier audio module for a multichannel speaker. The multi-amplifier audio module comprises a plurality of amplifier units connected to a power source and connected to each other to amplify an input audio signal. A plurality of speakers for outputting the amplified audio signal, an equalizer for adjusting the amplified audio signal for each frequency band, and a volume controller for controlling the volume of the amplified audio signal, are connected to each of the amplifier units.