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===

SR no	Battery	Full form	cathode	anode	electrolyte	Reaction at anode	Reaction at cathode	Redox reaction
1	LCO	Lithium cobalt oxide	LiCoO2	LiC6	LiPF6	Li x C 6 →xLi + +xe-+C 6	Li 1-x CoO 2 +xLi + +xe-→LiCoO 2	C 6 +LiCoO 2 ↔LiC 6 +CoO 2
2	LMO	Lithum Manganese Oxide	LiMn 2 O 4	LiC 6	LiPF 6	Li x C 6 →xLi + +xe-+C 6	Li 1-x Mn 2 O 4 +xLi + +xe-→LiMn 2 O 4	C 6 +LiMn 2 O 4 ↔LiC 6 +Mn 2 O 4
3	NCA	Lithium Nickel Cobalt Aluminium Oxide	LiNiCoAlO2	LiC 6	LiPF 6	Li x C 6 →xLi + +xe-+C 6	Li1-xNiCoAlO2+xLi+xe-→LiNiCoAlO2	C 6+LiNiCoAlO 2↔LiC 6+NiCoAlO 2
4	NMC	Nickel manganese cobalt oxide lithium	LiNi0.8Mn0.1Co0.1O2LiC6	LiC 6	LiPF 6	Li x C 6 →xLi + +xe-+C 6	xNi0.8Mn0.1Co0.1O2+xLi+ +xe-→LiNi0.8Mn0.1Co0.1O2	C6+Lini0.8Mn0.1Co0.1O2↔LiC6+Ni0.8Mn0.1Co0.1o2 →LiNi0.8Mn0.1Co0.1O2
5	LFP	Lithium iron phosphate lithium	LiFePO4	LiC 6	LiPF 6	Li x C 6 →xLi + +xe-+C 6	Li1-xFePO4+xLi+xe-→LiFePO4C	C6+LiFePO4↔LiC6+FePO4
6	LTO	Lithium titanium oxide	LiMn2O2	Li4Ti5O12	LiPF 6	Li4Ti5O12→Ti5O12+4Li	4Li1_xMn2O4+4Li+4e-→4LiMn2O4	Li4Ti5O12+4Mn2O4↔4LiMn2O4+Ti5O12

2.Compare the differences between each type of Li+ion batteries based on their characteristics

ANS====

Below are the different types of batteries where I give some explanation and have idea about the difference between all this batteries.

LCO : Lithium Cobalt Oxide (LiCoO2)

LMO : Lithium Manganese Oxide (LiMn2O4)

NMC : Lithium Nickel Manganese Cobalt Oxide (LiNimCoO2)

LFP : Lithium Iron Phosphate (LiFePO4)

NCA : Lithium Nickel Cobalt Aluminum Oxide (LiNiCoAlO2)

LTO : Lithium Titanate (Li2TiO3)

Q 2: Compare the difference between each type of Li-ion batteries based on their characteristic

Ans :

First of all, there is two type of cell,

1) Primary cell- which is not rechargeable.

2) Secondary cell – which is rechargeable.

• LCO : Lithium Cobalt Oxide (LiCoO2)

The Lithium Cobalt Oxide battery is type of lithium ion battery. This battery consist cobalt oxide on cathode and anode is layered as carbon.

Lithium ions move from anode (Negative) to cathode (positive) at the time of discharge cycle and reverse direction during charge time.

Its drawback is that its current capacity at the time of charge and discharge is limited.

• LMO : Lithium Manganese Oxide

This ion battery structured allows high current flow and it able to do fast charge. This improves the flow of ions on electrode.

The advantage is that it improves the thermal stability and also safety of cell.

Disadvantage is that there is limited life time.

• NMC : Lithium Nickel Manganese Cobalt Oxide (LiNimCoO2)

This type of battery is combination of nickel and manganese. Nickel is high specific energy and poor stability. Where manganese is low resistance and low specific energy.

• LFP : Lithium Iron Phosphate (LiFePO4)

This ion battery provides low internal resistance and high current capacitance.

There is also providing low terminal voltage. It also provides high current rating, and good thermal stability.

• NCA : Lithium Nickel Cobalt Aluminum Oxide (LiNiCoAlO2)

This ion battery slightly seen in consumer but is used in automotive industry.

Main advantage is that is has good life and high energy and power.