Li-ion batteries are also composed of three parts: positive electrode, negative electrode, and electrolyte.
Positive: Li-ions are embedded during discharge and detached during charging.
• Charging: LiCoO2 → Li1-x CoO2 + xLi+ + xe−
• Discharge: Li1-x CoO2 + xLi+ + xe− → Li CoO2
Negative: Li-ion detachment during discharge and insertion during charging.
• Charging: xLi+ + xe− + 6C → LixC6
• Rated voltage: 3.6/3.7/3.8/3.85 V
• Standard discharge continuous current: 0.2C
• Maximum continuous discharge current: 0.5C
• Working temperature: Charging: 0-45 ℃ Discharge: -20~60 ℃
• Finished product internal resistance: ≤ 180m Ω
• Specific energy: 100-265 Wh/kg
• Energy density: 250-693 Wh/L
• Specific power: C250 – 340 W/kg
• Charging and discharging efficiency: 80-90%[
• Self-discharge rate: 0.35% -2.5% per month based on charging state
• Cycle durability: 400-1200 cycles
• High energy density
• High open circuit voltage
• High output power
• No memory effect
• Low self-discharge
• Wide working temperature range
• Fast charging and discharging speed.
|Applications: Li-ion batteries are widely used in consumer electronics, industrial instruments, medical equipment, electric vehicles, and other fields. For example, personal digital assistants, personal mobile devices, smartphones and laptops, digital cameras, watches, portable power packs, electric toys, medical devices, solar storage, uninterrupted power supply (UPS) or emergency power backup, monitoring and alarm systems, electric cars and mobile scooters, golf carts and trolleys, etc.|