Cathodes - Technological review

Lithium cobalt oxide (LiCoO2) was already used in the first commercialized Li-ion battery by SONY in 1990. Still, it is the most frequently used cathode material nowadays. However, LiCoO2 is intrinsically unstable in the charged state, especially at elevated temperatures and in the overcharged state...

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Bibliographic Details
Main Authors: Cherkouk Charaf, Nestler, Tina
Format: Conference Proceeding
Language:English
Subjects:
CATHODES
COBALT OXIDES
Commercialization
ELECTROCHEMISTRY
Electrode materials
ENERGY STORAGE
High temperature
LIFETIME
Lithium
LITHIUM COMPOUNDS
LITHIUM IONS
Lithium-ion batteries
METAL-NONMETAL BATTERIES
Nanomaterials
NANOSTRUCTURES
Plasma
Rechargeable batteries
REVIEWS
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Summary:Lithium cobalt oxide (LiCoO2) was already used in the first commercialized Li-ion battery by SONY in 1990. Still, it is the most frequently used cathode material nowadays. However, LiCoO2 is intrinsically unstable in the charged state, especially at elevated temperatures and in the overcharged state causing volume changes and transport limitation for high power batteries. In this paper, some technological aspects with large impact on cell performance from the cathode material point of view will be reviewed. At first it will be focused on the degradation processes and life-time mechanisms of the cathode material LiCoO2. Electrochemical and structural results on commercial Li-ion batteries recorded during the cycling will be discussed. Thereafter, advanced nanomaterials for new cathode materials will be presented.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4878484