Synthesis, characterization, and electrochemistry of cathode materialLi[Li_0.2Mn_0.54Ni_0.13Co_0.13]O₂nanofiberspreparedby electrospinning for lithium ion batteries

Nanofibers ofLi[Li_0.2Mn_0.54Ni_0.13Co_0.13]O₂ with high crystallinity were easily synthesized by electrospinning. Scanning electron microscopy (SEM)showed that precursor wireswereglossy, andthe diametersof oxidecalcined at 800°Cwere 50-200 nm. And X-ray diffraction (XRD)exhibited perfect crystal structure. Theelectrochemical properties of materials with the specific morphology were significantly improved. The first charge/discharge capacity was around 309.3 and 270.2 mAh·g^-1at 25 mA·g^-1, and the first coulomb efficiency (87.4%) represented a good efficiency for Li₂MnO₃-type electrodes. After 20 cycles, discharge capacity was over 200 mAh·g^-1 at 25 mA·g^-1, and capacity retention was 79.8% at 250 mA·g^-1.Owing to its simplicity and applicability, the electrospinning methodis an promising method to fabricate high performance Li[Li_0.2Mn_0.54Ni_0.13Co_0.13]O₂materialsforlithium ion batteries.