[100]-Oriented LiFePO4 Nanoflakes toward High Rate Li-Ion Battery Cathode.
basic_science · Level V
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- Record sourced from PubMed, PMID 26694590.
- Also identified by DOI 10.1021/acs.nanolett.5b04855.
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Abstract
[100] is believed to be a tough diffusion direction for Li(+) in LiFePO4, leading to the belief that the rate performance of [100]-oriented LiFePO4 is poor. Here we report the fabrication of 12 nm-thick [100]-oriented LiFePO4 nanoflakes by a simple one-pot solvothermal method. The nanoflakes exhibit unexpectedly excellent electrochemical performance, in stark contrast to what was previously believed. Such an exceptional result is attributed to a decreased thermodynamic transformation barrier height (Δμb) associated with increased active population.