Challenge

Week 1 Understanding Different Battery Chemistry

Question 1 answer:

Lithium-ion cells , in their most common form, consist of a graphite anode, a lithium metal oxide cathode, and an electrolyte of a lithium salt and an organic solvent. Lithium is a good choice for an electrochemical cell due to its large standard electrode potential (–3.04 V) resulting in a high operating voltage (which helps both power and energy) and the fact that it is the metal with the lowest density (which reduces weight).

1)Lithium cobalt oxide(LCO) battery

LCO (Lithium cobalt oxide) was invented in the year 1991. Its anode material is LiaC6, the cathode material is LibCoO2 and the carrier is Li+.It is used in various applications ranging from electronic devices to all laptops and phone batteries. The majority of lithium-ion batteries for portable devices are cobalt-based. The system contains a cobalt oxide cathode (positive electrode) and graphite carbon anode (negative electrode).

2)Lithium-ion manganese oxide (LMO)battery

A lithium-ion manganese oxide battery (LMO) is a lithium ion cell that uses manganese dioxide, MnO2, as the cathode material. They function through the same intercalation/de-intercalation mechanism as other commercialized secondary battery technologies, such as LiCoO2. Cathodes based on manganese-oxide components are earth-abundant, inexpensive, non-toxic, and provide better thermal stability.

3)Lithium nickel cobalt aluminium oxides (NCA) battery

Lithium nickel cobalt aluminum oxide battery, or NCA, has been around since 1999 for special applications. It shares similarities with NMC by offering high specific energy, reasonably good specific power and a long life span.

4)Lithium Nickel Manganese Cobalt Oxide (NMC) battery

What is an NMC battery? In short, NMC batteries offer a combination of Nickel, Manganese and Cobalt. They are sometimes known as Lithium Manganese Cobalt Oxide batteries. NMC batteries have a high specific energy or power.
5)Lithium iron phosphate battery(LFP) batteries
LFP batteries stands for Lithium iron phosphate(LiFePO4) batteries, which is known as li-phosphate batteries as well. They use phosphate as cathode material. In addition, they benefit from the low resistance properties that enhance their thermal stability and safety.
6)Lithium-titanate-oxide(LTO) battery
The lithium-titanate-oxide (LTO) battery is a type of rechargeable battery which has the advantage of being faster to charge than other lithium-ion batteries, but the disadvantage of having a much lower energy density.
The materials & chemical reactions occurring at the anode, cathode and overall reactions of all the types of Li-ion cells are given in the table below:
2.Compare the differences between each type of Li+ion batteries based on their characteristics?
Ans:
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