Lithium-ion battery types
It is named after lithium-ion active substances. It can be difficult to remember and difficult to pronounce a series of letters and numbers put together.
For example, one of the most common Li-ions, lithium cobalt oxide, has the chemical symbol LiCoO2. Due to its simplicity, short battery Li-cobalt can also be used for this battery. This section lists six of the six most common ions. All readings are average estimates during writing.
Lithium Cobalt Oxide (LiCoO2)
High specific energy Li-cobalt is an ideal choice for mobile phones, laptops and digital cameras. The battery consists of a cobalt oxide cathode and a graphite carbon anode. The cathode has a layered structure and lithium ions pass from the anode to the cathode during discharge. The disadvantage of Li-cobalt is its relatively short service life, low thermal stability and limited load capacities (specific power).
Lithium Manganese Oxide (LiMn2O4)
The architecture creates a three-dimensional spinel structure that increases ion flow on the electrode, resulting in lower internal resistance and improved current utilization. Another advantage of spinel is its high thermal stability and improved safety, but its cycle and calendar life is limited.
Lithium Nickel Manganese Cobalt Oxide (LiNiMnCoO2 or NMC)
One of the most successful Li-ion systems is a cathode combination of nickel-manganese-cobalt (NMC). For example, NMC in an 18650 cell for medium loading condition has a capacity of about 2,800mAh and can provide 4A to 5A; The NMC in the same cell optimized for specific power has a capacity of only about 2,000mAh, but provides a continuous discharge current of 20A. A silicon-based anode will rise to 4,000mAh and higher, but with reduced loading capacity and shorter cycle life. The silicon added to the graphite has the disadvantage that the anode grows and shrinks with charge and discharge, rendering the cell mechanically unstable.
16Axx
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