What is the difference from 14500 and AA battery?

From the web:

14500 battery specifications:
  • Type/Size: 14500 battery Protected
  • Battery Cell Capacity Maximum: 1115 mAh
  • Battery Cell Capacity Minimum: 1040 mAh
  • Battery cell Capacity Rated: 1100 mAh
  • Energy: 4070 mWh [4.07 Wh] mWh=Milliwatt-Hour
  • Chemistry: Li-ion [ Lithium-ion ]
  • Nominal Voltage: 3.7V
  • Full Charge Voltage:4.2V

AA battery: (Wikipedia)
devices designed for AA cells will usually only take 1.2–1.5 V unless specified by the manufacturer. (...)
Rechargeable batteries in the AA size are available in multiple chemistries: nickel–cadmium (NiCd) with a capacity of roughly 600–1,000 mAh,[10] nickel–metal hydride (NiMH) in various capacities of 600–2,750 mAh[11][12] and lithium-ion. NiCd and NIMH provide 1.2 V; lithium-ion chemistry has a nominal voltage of 3.6–3.7 volts, and AA-sized cells of this voltage are coded 14500 rather than AA.
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