LiFeBO3/C cathode material with hollow sphere architecture is successfully synthesized by a spray-drying method. SEM and TEM results demonstrate that the micro-sized LiFeBO3/C hollow spheres consist of LiFeBO3@C particles and the average size of LiFeBO3@C particles is around 50-100 nm. The thickness of the amorphous carbon layer which is coated on the surface of LiFeBO3 nanoparticles is about 2.5 nm. LiFeBO3@C particles are connected by carbon layers and formed conductive network in the LiFeBO3/C hollow spheres, leading to improved electrical conductivity. Meanwhile, the hollow structure boosts the Li+ diffusion and the carbon layers of LiFeBO3@C particles protect LiFeBO3 from moisture corrosion. Consequently, synthesized LiFeBO3/C sample exhibits good electrochemical properties and storage performance.
CITATION STYLE
Sui, Y., Chen, W., Tang, S., Wu, L., Wang, B., Li, H., … Zhong, S. (2019). Spray-drying synthesis of LiFeBO3/C hollow spheres with improved electrochemical and storage performances for Li-Ion batteries. Frontiers in Chemistry, 7(MAY). https://doi.org/10.3389/fchem.2019.00379
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