Lithium Ion
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A lithium-ion or Li-ion battery is a type of rechargeable battery that uses the reversible intercalation of Li⁺ ions into electronically conducting solids to store energy. Wikipedia
Un number: UN 3480
Charge/discharge efficiency: 80–90%
Cycle durability: 400–1,200 cycles
Energy density: 250–693 Wh/L (0.90–2.49 MJ/L)
Energy/consumer-price: 7.6 Wh/US$ (US$132/kWh)
Self-discharge rate: 0.35% to 2.5% per month depending on state of charge
Specific energy: 100–265 Wh/kg (0.360–0.954 MJ/kg)