{'fraction_non_alphanumeric': 0.0715909090909091, 'fraction_numerical': 0.06363636363636363, 'mean_word_length': 4.683870967741935, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Effect of Ba doping on electrochemical performance of Li3V2(PO4)3/C cathode materials for Li ion batteries

ABSTRACT Ba-doped Li3V2-xBax(PO4)3/C (x = 0.00, 0.10, 0.15, 0.20) composite was synthesized by Sol-gel Method. The effects of Ba doping on the structure, morphology and electrochemical performance of Li3V2(PO4)3/C were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), Transmission electron microscopy (TEM) and electrochemical measurements. The XRD analysis showed that these Ba-doped materials did not change the crystal structure of Li3V2(PO4)3/C cathode material. In the potential range of 3.0–4.3 V, the Li3V2-xBax(PO4)3/C (x = 0.00, 0.10, 0.15, 0.20) composite showed the highest discharge capacity of 125.6 mAh/g at 0.1 C, which is close to the theoretical capacity. The discharge capacity of the sample was stable even after 40th cycles.