... , upper small electronic products.Profiled polymer lithium-ion battery, The HGB company use its technology advantages, Can be tailored for ... 4mm: The World Thinnest, Flexible, Rechargeable Polymer Li-ion Battery HGB has succeeded in the development of an ultrathin, ... mercury, lead or cadmium. Key features of the newly developed battery include: (1) An exceedingly thin structure (500 microns), which ...