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
| Types of lithium-ion cells | Materials (Anode) | Materials (Cathode) | Seperator of "Anode" & "Cathode" | Chemical (Anode) | Chemical (Cathode) |
| LCO (Lithium Cobalt Oxide) | Graphite | Lithium Cobalt Oxide | Polyolefin | Li⁺ + C6 + e⁻ | CoO2 + Li⁺ + e⁻ |
| LMO (Lithium Manganese Oxide) | Graphite | Lithium Manganese Oxide | Polyolefin | Li⁺ + C6 + e⁻ | MnO2 + Li⁺ + e⁻ |
| NCA (Nickel Cobalt Aluminium) | Graphite | Nickel Cobalt Aluminium | Polyolefin |
Li⁺ + C6 + e⁻ |
NiCoAlO2 + Li⁺ + e⁻ |
| NMC (Nickel Manganese Cobalt) | Graphite | Nickel Manganese Cobalt | Polyolefin | Li⁺ + C6 + e⁻ | NiMnCoO2 + Li⁺ + e⁻ |
| LFP (Lithium Iron Phosphate) | Graphite | Lithium Iron Phosphate | Polyolefin | Li⁺ + C6 + e⁻ | FeP(O(2)2) + Li⁺ + e⁻ |
| LTO (Lithium Titanium Oxide) | Lithium Titanium Oxide | Graphite | Polyolefin | Ti5(O(2)6) + 4Li⁺ + 4e⁻ | 4Mn2(O2(2)) 4Li⁺ + 4e⁻ |
Graphite is typically used as an anode and the cathode depends on the type of lithium-ion cell or battery. However, in an LTO cell, the anode itself is "Li Ti O", whereas the cathode consists of graphite.
The picture is taken from https://www.researchgate.net/publication/334564888_Analysis_of_the_Current_Electric_Battery_Models_for_Electric_Vehicle_Simulation for a better understanding and to compare the types of lithium battery
2. Compare the differences between each type of Li+ion batteries based on their characteristics
Energy density, thermal stability, safety profile, cycle life, and price are the key variations between each kind of Li-ion battery. The selection of a particular Li-ion battery type relies on the requirements and objectives of the application, such as when a high density of energy, an additional lifespan, or safety are the main concerns. A better comparison or visual understanding of the various battery types may be made using the image used in question 1. As the individual coloured line area is more than that of other battery types, it indicates that the efficiency is greater as compared to.