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单 LixFePO4 微晶的红外近场光谱学和成像
2015-7-22  浏览量:1689
Nanoscale chemical imaging combines the resolution of AFM instruments with spectroscopy from a tunable laser to collect spectral information at 20 nm resolution. In the latest example, infrared near-field nanoscopy has been used by researchers at University of California, San Diego to create a quantitative three-dimensional tomographic reconstruction of the phase distribution within a single microcrystal. LixFePO4 is a positive electrode material for Li-ion batteries, and this information provides new insight into the phase transformation and relaxation mechanism of the delithiation process, which ultimately could yield improved charging performance of Li-ion batteries.

 

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