TITLE:
Synthesis, Characterization and Charge-Discharge Properties of Layer-Structure Lithium Zinc Borate, LiZnBO3
AUTHORS:
Isao Tsuyumoto, Akihiro Kihara
KEYWORDS:
Oxide; Borate; Lithium; Zinc; X-Ray Diffraction; Battery
JOURNAL NAME:
Materials Sciences and Applications,
Vol.4 No.4,
April
29,
2013
ABSTRACT: Layer-Structure lithium zinc borate, LiZnBO3, is prepared by a solid state reaction of LiOH·H2O, ZnO, and H3BO3 at 1000°C for 10 h. Highly preferred orientation and a layer-structure are observed in the powder XRD patterns and the SEM images, respectively. The Rietveld analysis indicates a monoclinic unit cell with space group C2/c, and the lattice parameters are refined as a = 8.827 ?, b = 5.078 ?, c = 6.171 ?, and β = 118.86°. LiZnBO3 shows the capacity of 17 mAh/g between 1.3 V and 4.3 V (vs. Li/Li+) larger than ZnO.