Week 1 Understanding Different Battery Chemistry
1.Prepare a table which includes materials & chemical reactions occurring at the anode and cathode of LCO, LMO, NCA, NMC, LFP and LTO type of lithium ion cells.Give your detailed explanation on it
Ans;-
| Types of Lithium ion cells | Anode's Material | Cathode's Materials | Reaction at Anode(Charging) | Reaction at Cathode(Charging) | Reaction at Anode(Discharging) | Reaction at Cathode(Discharging) |
| LCO | Graphite Carbon | Cobalt Oxide | C6+Li++e- = LiC6 | LiCoO2=CoO2+Li++e- | LiC6=C6+Li++e- | CoO2+Li++e-=LiCoO2 |
| LMO | Graphite Carbon | Manganese Oxide | C6+Li++e- = LiC6 | LiMn2O4=Mn2O4+Li++e- | LiC6=C6+Li++e- | Mn2O4+Li++e-=LiMn2O4 |
| NCA | Graphite Carbon | Nickel Cobalt Aluminum Oxide | C6+Li++e- = LiC6 | Li(NiCoAl)O2=(NiCoAl)O2+Li++e- | LiC6=C6+Li++e- | (NiCoAl)O2+Li++e-= Li(NiCoAl)O2 |
| NMC | Graphite Carbon | Nickel Manganese Cobalt Oxide | C6+Li++e- = LiC6 | Li(NiMnCo)O2=(NiMnCo)O2+Li++e- | LiC6=C6+Li++e- | (NiMnCo)O2+Li++e- =Li(NiMnCo)O2 |
| LFP | Graphite Carbon | Iron Phospate | C6+Li++e- = LiC6 | LiFePO4= FePO4+Li++e- | LiC6=C6+Li++e- | FePO4+Li++e-= LiFePO4 |
| LTO | Spinel structure of Titanate | Lithium Titanate Oxide | TiO2+3Li++3e-=TiO2Li3 | 2Li7Ti5O12= Ti5+O12+Li4+3Li++3e- | TiO2Li3=TiO2+3Li++3e- | Ti5+O12+Li4+3Li++3e-= 2Li7Ti5O12 |
2.Compare the differences between each type of Li+ion batteries based on their characteristics
Ans:-
| Types of Lithium ion cells | Characteristics |
| LCO | High energy density, Long run time, Low charging and discharging rate |
| LMO | High thermal stability, Low internal resistance, Lower Capacity |
| NCA | High energy density, Fast charging capability, Long life span |
| NMC | Higher energy density, Longer life cycle, Slightly lower voltage generation |
| LFP | Long life cycle, Low cost, Excellent safety, Lower nominal voltage which reduces specific energy |
| LTO | Extremely long life, Rapid battery charging, Enhanced Safety, Low energy density |