Nickel Manganese Cobalt Battery (NMC battery)

Date:Dec 09, 2020

Nickel Manganese Cobalt Battery (NMC battery)

Lithium Nickel Manganese Cobalt Oxide (NMC)

One of the most successful Li-ion systems is a cathode combination of nickel-manganese-cobalt (NMC). Also known as lithium-manganese-cobalt-oxide batteries, or NMC, lithium nickel manganese cobalt oxide batteries are made of several materials common in other lithium iron batteries. These involve a cathode combination of nickel, manganese and cobalt

NMC in the same cell optimized for specific power has a capacity of only about 2,000mWh but delivers a continuous discharge current of 20A.

A silicon-based anode will go to 4,000mAh and higher but at reduced loading capability and shorter cycle life. Silicon added to graphite has the drawback that the anode grows and shrinks with charge and discharge, making the cell mechanically unstable.

Like other varieties of lithium-ion batteries, NMC batteries can have either a high specific energy or high specific power. They cannot, however, have both properties. This battery is most common in power tools and in powertrains for vehicles.

The cathode combination ratio is usually one-third nickel, one-third manganese and one-third cobalt, meaning that the raw material cost is lower than for other options, as cobalt on its own can be quite expensive. According to Battery university, this battery is also commonly preferred for electric vehicles due to its very low self-heating rate.

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