Why is LiCoO2 used as a cathode?

Why is LiCoO2 used as a cathode?

OR lithium-ion batteries, LiCoO2 is the most commonly used cathode material due to its high capacity and good cyclability [1-2].

What is the structure of LiCoO2?

LiCoO2 exhibits two crystal structures, depending on both the preparation method and synthesis temperature. High temperature lithium cobalt oxide (HT-LiCoO2) has a hexagonal layered structure, while the low temperature oxide (LT-LiCoO2) has a cubic spinel-related structure.

What is the name of LiCoO2?

lithium cobalt(III) oxide
Lithium cobalt oxide

Is LiCoO2 a structural material?

Commercial LiCoO2 materials have a limited practical capacity of around 140 mAh. g−1, poor thermal stability, are expensive and relatively toxic. Moreover, LiCoO2 is structurally unstable, resulting in a large capacity decay as the cycle numbers increase1,2,3.

Why is lithium ion battery used in licoo2?

Li-ion batteries (LIB) are used in most portable electronics. Among a wide variety of materials, LiCoO2 (LCO) is one of the most used for the cathode of LIB. LCO particles induce oxidative stress in mouse lungs due to their Co content, and have a strong inflammatory potential.

What is cathode active material?

Cathode active materials are composed of lithium and metal. Active materials have different characteristics depending on type and ratio of metals. For example, Ni(Nickel) has high capacity, Mn(Manganese) and Co(Cobalt) has high safety and Al(Aluminum) increases power of a battery.

What is LiCoO2 battery?

LiCoO2, discovered as a lithium-ion intercalation material in 1980 by Prof. John B. Goodenough, is still the dominant cathode for lithium-ion batteries (LIBs) in the portable electronics market due to its high compacted density, high energy density, excellent cycle life and reliability.

What is the density of LiCoO2?

4.79 g/cm3
The density of the specimen is 4.79 g/cm3, corresponding to a high relative density ∼95% (theoretical density: 5.05 g/cm3) [10].

What is a 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. This limitation of either ‘energy’ or ‘power’ makes them more common for use in power tools or electric vehicles.

What is a licoo2 battery?

What is the best material for a cathode?

The most commonly used materials are lithium cobalt oxide (LCO), lithium nickel manganese cobalt oxide (NMC), lithium nickel cobalt oxide doped with alumina (NCA), lithium manganese oxide (LMO), and lithium iron phosphate (LFP).

What are cathodes used for?

The Cathode is the positive or oxidizing electrode that acquires electrons from the external circuit and is reduced during the electrochemical reaction. The Electrolyte is the medium that provides the ion transport mechanism between the cathode and anode of a cell.

Is it possible to engineer the surface of LiCoO2 electrodes?

Xie, J. et al. Engineering the surface of LiCoO 2 electrodes using atomic layer deposition for stable high-voltage lithium ion batteries. Nano Res 10, 1–11 (2017).

What is the voltage of a full cell LCO electrode?

To the best of our knowledge, this is the first research that demonstrates the high-voltage (4.6 V) electrochemical performance of modified LCO electrodes in full-cell configuration.

Why do 2% LAF-LCO electrodes enhance electrochemical performance?

In light of these results from quantitative analyses, the enhanced electrochemical performance of cells with 2% LAF-LCO electrodes was mainly attributed to the retardation of side reactions and the suppression of Co dissolution by the stable, fluorine-enriched, coating layer.

What is LiCoO2 (LAF-LCO)?

The Li, Al, F-modified LiCoO 2 (LAF-LCO) is fabricated through a facile and scalable hydrothermal reaction. The resulting Al, F-enriched coating layer with MO (M=Li, Al) nanoparticles effectively resists HF attack from liquid electrolytes and improves the interfacial stability and structural integrity at  4.2 > V 8, 17.