Cylindrical lithium-ion cells: Cylindrical cells are generally used for notebook computers, portable DVD players, digital cameras, and camcorders. We target our cylindrical cells for the digital camera, note-book pc, segway, portable dvd etc. Lithium-ion cylindrical battery provides higher energy density with optimized electrodes design Lithium-ion Prismatic Battery provides various types of cells suitable for any portable devices. Li-ion prismatic battery is slimmer and stronger and it's your best portable device partner in the wireless world. High energy density, ultra slim design, improved battery safety, free from leakage of liquid electrolyte, high power capability, low battery impedance, flexibility in size.