Development of high power density cathode materials for Li-ion batteries
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Bernt Ketterer
Abstract
Cathode material for Li-ion batteries can be synthesised by r.f. magnetron sputtering of LiCoO2 targets in a pure Ar plasma. This technique is suitable for large-scale implementation in foil coating set-ups. By choosing the process parameters and by employing post heat treatment nanocrystalline, stoichiometrical LiCoO2 films can be fabricated which exhibit the desired high temperature phase. The determination of the elementary composition is possible by optical emission spectroscopy including plasma stimulation and carrier gas temperature extraction. The proof of crystal structure is carried out by X-ray diffraction and Raman spectroscopy. Heat treatment can be conventionally realised in a furnace or by laser impact. With regard to increasing the power density, the surface of the cathode material can be enhanced six-fold by laser-assisted surface patterning.
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© 2008, Carl Hanser Verlag, München
Articles in the same Issue
- Contents
- Contents
- Editorial
- To Professor Dr.-Ing. Karl-Heinz Zum Gahr on the occation of his 65th birthday
- Review
- Innovative materials for energy technology
- STAU – a review of the Karlsruhe weakest link finite element postprocessor with extensive capabilities
- Basic
- “Evolution” of microstructure in materials
- X-ray analysis of steep residual stress gradients: The 2θ-derivative method
- Investigation of surface fatigue of thermally sprayed micro- and nanocrystalline cylinder wall coatings by means of cavitation testing
- Thermal, mechanical and fretting fatigue of silicon nitride
- Effect of phase stability and composition on hydrogen diffusion in the binary systems Ti–Mo and Ti–V and related Ti-base alloys
- Determination of v–K curves from lifetime tests with reloaded survivals
- Mechanical properties of a single gecko seta
- Applied
- Influence of Fe–F-co-doping on the dielectric properties of Ba0.6Sr0.4TiO3 thick-films
- Microstructural and acoustic damage analysis and finite element stress simulation of air plasma-sprayed thermal barrier coatings under thermal cycling
- The running-in of amorphous hydrocarbon tribocoatings: a comparison between experiment and molecular dynamics simulations
- Development of multifunctional thin films using high-throughput experimentation methods
- A transmission electron microscopy procedure for in-situ straining of miniature pseudoelastic NiTi specimens
- Recent developments in micro ceramic injection molding
- σ-phase morphologies and their effect on mechanical properties of duplex stainless steels
- Development of high power density cathode materials for Li-ion batteries
- Notification
- DGM News
Articles in the same Issue
- Contents
- Contents
- Editorial
- To Professor Dr.-Ing. Karl-Heinz Zum Gahr on the occation of his 65th birthday
- Review
- Innovative materials for energy technology
- STAU – a review of the Karlsruhe weakest link finite element postprocessor with extensive capabilities
- Basic
- “Evolution” of microstructure in materials
- X-ray analysis of steep residual stress gradients: The 2θ-derivative method
- Investigation of surface fatigue of thermally sprayed micro- and nanocrystalline cylinder wall coatings by means of cavitation testing
- Thermal, mechanical and fretting fatigue of silicon nitride
- Effect of phase stability and composition on hydrogen diffusion in the binary systems Ti–Mo and Ti–V and related Ti-base alloys
- Determination of v–K curves from lifetime tests with reloaded survivals
- Mechanical properties of a single gecko seta
- Applied
- Influence of Fe–F-co-doping on the dielectric properties of Ba0.6Sr0.4TiO3 thick-films
- Microstructural and acoustic damage analysis and finite element stress simulation of air plasma-sprayed thermal barrier coatings under thermal cycling
- The running-in of amorphous hydrocarbon tribocoatings: a comparison between experiment and molecular dynamics simulations
- Development of multifunctional thin films using high-throughput experimentation methods
- A transmission electron microscopy procedure for in-situ straining of miniature pseudoelastic NiTi specimens
- Recent developments in micro ceramic injection molding
- σ-phase morphologies and their effect on mechanical properties of duplex stainless steels
- Development of high power density cathode materials for Li-ion batteries
- Notification
- DGM News
