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6
First-Principles Approach for Cathode
Design and Characterisation
Dong-Hwa Seo, Inchul Park and Kisuk Kang
6.1 Introduction
The exhaustion of oil resources and other environmental problems have pro-
voked tremendous interest in energy-storage systems for renewable energy
[1]. The Li rechargeable battery is one of the most advanced energy-storage
systems, due to its high-energy density. The LiCoO
2
–graphite-based system
has served as the major power system of portable electric devices, such as
mobile phones and laptop computers. With the high cost and the unreliable
safety and stability of the current systems, these systems are also inadequate ...