Lithium Cobalt Oxide (LiCoO2)
Its high specific energy make Li-cobalt the popular choice for cell phones, laptops and digital cameras. The battery consists of a cobalt oxide cathode and a graphite carbon anode. The cathode has a layered structure and during discharge lithium ions move from the anode to the cathode. The flow reverses on charge. The drawback of Li-cobalt is a relatively short life span and limited load capabilities (specific power).
- High energy density (both volumetric and gravimetrtic)
- Large number of mechanical cell sizes available
- High voltage - a single cell replaces three NiCd or NiMH cells
- Active development - significant investment into further imrovements
- No memory effect
- Very low rate of self discharge