Registration of Lithium Battery x-ray Images Based on an Improved RANSAC Algorithm

A lithium battery was composed of anode, cathode, and separator. The performance of lithium battery was influenced by the thickness of film, the composition of material, and the effect of surfactant and binder. This research investigated the effect of the anode film thickness to the electrochemical performances of lithium battery. Mesocarbon microbeads (MCMB) and lithium iron phosphate (LiFePO4) were used respectively as anode and cathode. Mesocarbon microbeads, carbon black (conductive agent), polyvinylidene fluoride (PVDF) as a binder and N-methyl-2-pyrrolidone (NMP) as a solvent were mixed well to produce slurry. The slurry were then coated, dried and pressed. The anode had various thickness of 50 μm, 70 μm, 100 μm, and 150 μm. The cathode film was made with certain thickness. The performance of lithium battery was examined by Eight Channel Battery Analyzer, the composition of the anode sample was examined by XRD (X-Ray Diffraction), and the crystal structure of the anode sample was analyzed by SEM (Scanning Electron Microscope). The research showed that the thickness of anode film of 100 μm gave the best performance. The battery performance decreased if the thickness was more than 100 μm. The best performance of battery voltage were between 3649 mV and 3650 mV.

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Structures of Li1+xMn2-XO4 Synthesized by Different Methods

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.652-654.844 ◽

2013 ◽

Vol 652-654 ◽

pp. 844-847 ◽

Cited By ~ 1

Author(s):

Xing Hua Liang ◽

Tian Jiao Liu ◽

Xiao Ming Hua

Keyword(s):

Crystal Lattice ◽

Ball Milling ◽

Lithium Battery ◽

Diffraction Peak ◽

Coprecipitation Method ◽

Synthetic Method ◽

X Ray Diffraction ◽

Reaction Conditions ◽

X Ray ◽

Milling Method

In the paper, Li1+xMn2-xO4 are synthesized by ball-milling method and coprecipitation method. The phases of three compounds have been analyzed by X-ray diffraction to compare diffraction peak, crystal system and crystal lattice′ s size. Advisedly, the results show that a compound has more purity phase and better crystallinity. Synthetic method and reaction conditions of this compound are as follows: via coprecipitation method, heat the sample at 250°C for 4h in air, followed by heating at 750°C for 36h in air. This analysis provides a reasonable and valuable thinking for research of the structures of Li1+xMn2-xO4. And it is propitious to develop the positive material of lithium battery.

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Lithium distribution analysis in all-solid-state lithium battery using microbeam particle-induced X-ray emission and particle-induced gamma-ray emission techniques

International Journal of PIXE ◽

10.1142/s012908351850002x ◽

2017 ◽

Vol 27 (01n02) ◽

pp. 11-20 ◽

Cited By ~ 2

Author(s):

K. Yoshino ◽

K. Suzuki ◽

Y. Yamada ◽

T. Satoh ◽

M. Finsterbusch ◽

...

Keyword(s):

Solid State ◽

Solid Electrolyte ◽

Cross Section ◽

Lithium Battery ◽

Gamma Ray ◽

Distribution Analysis ◽

Composite Electrodes ◽

X Ray ◽

The Difference ◽

Micrometer Scale

For confirming the feasibility of micrometer scale analysis of lithium distribution in the all-solid-state lithium battery using a sulfide-based solid electrolyte, the cross-section of pellet type battery was analyzed by microbeam particle-induced X-ray emission (PIXE) and particle-induced gamma-ray emission (PIGE) measurements. A three-layered pellet-type battery (cathode: LiNbO3-coated [Formula: see text]/solid electrolyte: [Formula: see text]/anode: [Formula: see text]) was prepared for the measurements. Via elemental mapping of the cross-section of the prepared battery, the difference in the yields of gamma rays from the [Formula: see text] inelastic scattering (i.e., the lithium concentrations) between the composite electrodes and the solid electrolyte layer was clarified. The difference in the number of lithium ions at the composite anode/solid electrolyte interface of ([Formula: see text] mol) in the battery can be clearly detected by the microbeam PIGE technique. Therefore, lithium distribution analysis with a micrometer-scale spatial resolution is demonstrated. Further analysis of the cathode/anode composite electrodes with the different states of charge could provide important information to design a composite for high-performance all-solid-state lithium batteries.

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