Challenge

Week 1 Understanding Different Battery Chemistry

1.

Name Anode Cathode Seperator Electrolyte Anode Reaction Cathode Reaction Overall Reaction
Lithium Cobalt Oxide(LCO) Graphite Lithium Cobalt oxide Polyolefin Ethylene Carbonate
Lithium Manganese Oxide(LMO) Graphite Lithium Manganese Polyolefin Lithium Halide
Lithium Nickel Cobalt Aluminium Oxide(NCA) Graphite Nickel Cobalt Aluminium Polyolefin Ethylene Carbonate
Lithium Nickel Manganese Cobalt Oxide(NMC) Graphite Nickel Manganese Polyolefin Lithium Salt
Lithium Iron Phosphate(LFP) Graphite Lithium Iron Phosphate Polyolefin Ethylene Carbonate
Lithium Titanate (LTO) Graphite Lithium Titanate Polyolefin Lithium Salt

2.

a. Lithium Cobalt Oxide (LCO) battery

LiCoO2 cathode (~60% Co), graphite anode

Voltage : 3.60V nominal; typical operating range 3.0–4.2V/cell

Specific energy (capacity) : 150–200Wh/kg. Specialty cells provide up to 240Wh/kg.

Cycle life : 500–1000

Thermal Runaway : 150°C (302°F). Full charge promotes thermal runaway

Application : Mobile phones, tablets, laptops, cameras

b.Lithium Mangane Oxide (LMO)

Voltage :3.70V (3.80V) nominal; typical operating range 3.0–4.2V/cell

Specific energy (capacity) :100–150Wh/kg

Cycle life :300–700

Thermal Runaway : 250°C (482°F)Full charge promotes thermal runaway

Application : Power tools, medical devices, electric powertrains

c.Lithium Nickel Cobalt Aluminium Oxide (NCA) Battery

Voltage :3.60V nominal; typical operating range 3.0–4.2V/cell

Specific energy (capacity) :200-260Wh/kg; 300Wh/kg predictable

Cycle life :500

Thermal Runaway : 150°C (302°F) typical, High charge promotes thermal runaway

Application :Medical devices, industrial, electric powertrain (Tesla)

d.Lithium Nickel Manganese Cobalt Oxide (NMC) Battery

Voltage :3.60V, 3.70V nominal; typical operating range 3.0–4.2V/cell, or higher

Specific energy (capacity) :150–220Wh/kg

Cycle life :1000–2000

Thermal Runaway : 210°C (410°F) typical. High charge promotes thermal runaway

Application :E-bikes, medical devices, EVs, industrial

e. Lithium Iron Phosphate (LFP)

Voltage :3.20, 3.30V nominal; typical operating range 2.5–3.65V/cell

Specific energy (capacity) :90–120Wh/kg

Cycle life :2000 and higher

Thermal Runaway : 270°C (518°F) Very safe battery even if fully charged

Application :Portable and stationary needing high load currents and endurance

f.Lithium Titanate(LTO) Battery

Voltage :2.40V nominal; typical operating range 1.8–2.85V/cell

Specific energy (capacity) :50–80Wh/kg

Cycle life :3,000–7,000

Thermal Runaway : One of safest Li-ion batteries

Application :UPS, electric powertrain (Mitsubishi i-MiEV, Honda Fit EV), solar-powered street lighting

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