Cathode material LiCoPO₄ has been grown using Co(NO₃)₂.6H₂O and CoO as the precursor materials, abbreviated as LCP_N and LCP_O respectively, by the travelling-solvent floating-zone method at low Argon pressure. We presented a route to characterize both of the crystal boules including chemical analysis, phase purity analysis, Laue back scattering, polarization images, as well as the orientation determination of the single crystalline grains. Besides, we defined the development factor (V) to evaluate the growth rate of the grains, and defined the orientation deviation factor (δ) to evaluate the quality of the as-grown crystal boules. The calculated V for LCP_N and LCP_O are 0.05 and 0.09, respectively, indicating that the grains of LCP_O develop faster than that of LCP_N. The calculated total δ for LCP_N and LCP_O are 0.7723 and 1.9972, respectively, indicating that the grown LCP_N has a better quality than that of LCP_O. The results show that the grains containing in the as-grown LCP_O crystal boule develop faster than that in LCP_N, and the LCP_N boule has a better quality than that of LCP_O.

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