Week 1 Understanding Different Battery Chemistry

TYPE	FORMULA	CATHODE MATERIAL	ANODE MATERIAL	SEPERATOR	APLLICATION
1] LCO	LiCoO2	cobalt oxide	Graphite carbon	polyolefin	Mobile phones, Tablets.
2] LMO	LiMn2O4	Lithium manganese oxide	Graphite carbon	polyolefin	Powertrains
3] NCA	LiNiCoAlO2	Lithium Nickel Cobalt Aluminum Oxide	Graphite carbon	polyolefin	Medical,Ev,Industrial
4] NMC	LiNiMnCoO2	Lithium Nickel manganese Cobalt Oxide	Graphite carbon	polyolefin	Evs,Industrial
5] LFP	LiFePO4	Lithium Iron Phosphate	Graphite carbon	polyolefin	Stationary with high current and endurance
6] LTO	Li2TiO3	Lithium Titanium oxide	Graphite carbon	polyolefin	UPS, street solar lights

1] LCO batteries technology and applications

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 the portable devices are cobalt based. The system contains a cobalt oxide cathode (positive electrode) and graphite carbon anode (negative electrode).

2] LMO (lithium ion manganese oxide battery )

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] NCA battery technology and applications

NCA (Lithium nickel cobalt aluminum oxide) battery was invented in the year 1999. Its anode material is LiaC6, the cathode material is LibNi0.8Co0.15Al0.05O2 and the carrier is Li+. It is used in different applications like power grid applications, medical devices and electric cars. Most notably Tesla deploys NCA batteries in their electric vehicles system. NCA batteries can store the same amount of energy as NMC. NCA batteries are not widely common in the consumer industry, but are quite promising in the electric car industry.

4] NMC batteries technology and applications

NMC (Nickel Manganese Cobalt Oxide) battery was invented in the year 2008. Its anode material is LiaC6, the cathode material is LibNi1–x–yCoxMnyO2 and the carrier is Li+. They commonly use it in different applications like Energy Systems and electric cars. NMC combines the best of nickel and manganese. Nickel has high specific energy but poor stability; manganese can form a spinel structure so as to achieve low internal resistance yet provides a low specific energy. Joining the metals increases the strengths from both parts. NMC batteries are widely used for power tools, energy storage systems (EES) which need frequent cycling and electrical power-trains like automotives. The cathode combination typically used is 1-1-1 which means one third nickel, one third manganese and one third cobalt. This reduces the raw material cost due to lowered content of cobalt. Another known combination for NCM is 5-3-2 (5 parts nickel, 3 parts cobalt and 2 parts manganese). Other combinations are also possible

5] LFP Battery

LFP (Lithium iron phosphate) was invented in the year 1996. Its anode material is LiaC6, the cathode material is LibFePO4 and the carrier is Li+. They use LFP batteries in different applications like electric cars, electric buses and electric trucks. The LFP is ideal for use in electric trucks or buses – as volume or weight isn’t really a restriction as is in cars- because the battery is less energy dense yet cheaper to manufacture than other Li-ion batteries types. In addition, they use LFP batteries in other applications like electric motorcycles which need a longer life cycle and increased safety. LFP provides good electrochemical performance with lower resistance. This is enabled by the nano scale phosphate cathode material. The main benefits are long cycle life, higher current rating and thermal stability which means extra safety.

6] LTO batteries technology and applications

LTO (Lithium tintate) was invented in the year 2008. Its anode material is Li4+aTi5O12, the cathode material is LibFePO4 and the carrier is Li+. They use it in different applications like UPS, electrical power trains, solar powered street lights, fast charge stations and forklifts. Other applications for LTO batteries include aerospace and military uses, and more importantly wind and solar energy storage and smart grids creation.Li-titanate is used instead of the graphite in the anode of a common lithium-ion battery and the material is formed into a spinel structure. The cathode material is either LMO or NMC.As mentioned, they use li-titanate batteries in electric vehicles, yet LTO batteries have lower energy density than other Li-ion battery types, which can be a disadvantage in efficiently powering vehicles. Still, the density of LTO batteries is higher than other non-Li-ion batteries.

Lithium-ion battery Types	SP	SE	SF	LS	CS	PF
Lithium Cobalt Oxide	L	H	L	L	L	M
Lithium Manganese Oxide	M	M	M	L	L	L
Lithium Nickel Manganese Cobalt Oxide	M	H	M	M	L	M
Lithium Iron Phosphate	H	L	H	H	L	M
Lithium Nickel Cobalt Aluminum Oxide	M	H	L	M	M	M
Lithium Titanate	M	L	H	H	H	H

• SP stands for specific power
• SE stands for specific energy
• SF stands for safety
• LS stands for lifespan
• CS stands for cost
• PF stands for performance
• L stands for low
• M stands for moderate
• H stands for high

EXPLAINATION:

Lithium Cobalt Oxide has high specific energy as compared to the other batteries which make it the preferred choice for laptops and mobile phones. It also has a low cost and a moderate performance. However, it is highly unfavorable in all the other aspects when compared to the other lithium-ion batteries. It has low specific power, low safety, and a low lifespan.

Lithium Manganese Oxide has moderate specific power, moderate specific energy, and a moderate level of safety when compared to the other types of lithium-ion batteries. It has the added advantage of a low cost. The downsides are its low performance and low lifespan. It is usually used in medical devices and power tools.

Lithium Nickel Manganese Cobalt Oxide has two major advantages as compared to the other batteries. The first one is its high specific energy which makes it desirable in electric powertrains, electric vehicles, and electric bikes. The other is its low cost. It is moderate in terms of specific power, safety, lifespan, and performance when compared to the other lithium-ion batteries. It can be optimized to either have high specific power or high specific energy.

Lithium Iron Phosphate only has one major disadvantage when compared to other types of lithium-ion batteries and that is its low specific energy. Other than that, it has moderate to high ratings in all the other characteristics. It has high specific power, offers a high level of safety, has a high lifespan, and comes at a low cost. The performance of this battery is also moderate. It is often employed in electric motorcycles and other applications that require a long lifespan and a high level of safety.

Lithium Nickel Cobalt Aluminum Oxide offers one strong advantage as compared to the five other batteries and that is high specific energy. It is pretty moderate in the rest of the characteristics like performance, cost, specific power, and lifespan. The only downside to this battery type is its low level of safety. Its high specific energy and moderate lifespan make it a good candidate for electric powertrains.

Lithium Titanate offers high safety, high performance, and a high lifespan which are very important features every battery should have. Its specific energy is low compared to the five other lithium-ion batteries but it compensates for this with moderate specific power. The only major disadvantage of lithium titanate as compared to the other lithium-ion batteries is its extremely high cost. Another important feature of this battery worthy of mention is its remarkably fast recharge time. It can be used for storing solar energy and creating smart grids.