Abstract
The ion beam driven nuclear analysis has been developed for many years by using various electrostatic accelerators. A proton micro-beam with the beam diameter of ∼1.5 μm at Takasaki Ion Acceleration for Advanced Radiation Application (TIARA), JAEA was used to analyze the positive electrode of the Li-ion battery with PIGE and PIXE. WThe PIGE and PIXE images of Li and Ni respectively for LixNi0.8Co0.15Al0.05O2(x = 0.75 ∼ 1.0) anodes have been taken. The PIGE images of LixNi0.8Co0.15Al0.05O2 particles and the depth profile of the Li density have been obtained with high spatial resolution (a few μm). The images of the Li density distribution are very useful for the R&D of the Li ion battery. In order to make the in-situ ion beam analysis of the Li battery possible, a compact accelerator for a high quality MeV proton beam is necessary. Form this point of view, the diagnostics of Li ion battery is an appropriate field for the applications of laser produced ion beams.
Highlights
Laser driven ion beams are interesting for their relative compactness, and for their extraordinarily high beam qualities
A proton micro-beam with the beam diameter of ∼1.5 m at Takasaki Ion Acceleration for Advanced Radiation Application (TIARA), JAEA was used to analyze the positive electrode of the Li-ion battery with Proton Induced Gamma-ray Emission (PIGE) and Particle Induced X-ray Emission (PIXE)
We found that the PIGE and PIXE spatial resolutions are better than a few micro-meters for the proton beam of 1.5 m diameter
Summary
Laser driven ion beams are interesting for their relative compactness, and for their extraordinarily high beam qualities. Atomic and nuclear processes induced by the ion beams have been widely applied for the material analysis (see [9] for an example). We apply the PIGE and the PIXE diagnostics for studies of the Li-ion diffusion in Li ion battery positive electrode made by Lix Ni0.8 Co0.15 Al0.05 O2 (x = 0.75 ∼ 1.0). This example demonstrates a potential application for laser produced ion beams. As the results of the experiments, we found the requirements for applying the laser produced proton beam to the diagnostics of the Li ion behavior in Li ion battery
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