{'fraction_non_alphanumeric': 0.025, 'fraction_numerical': 0.04523809523809524, 'mean_word_length': 5.007142857142857, '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}}
Synthesis of Fe2O3/Graphene Composite Anode Materials with Good Cycle Stability for Lithium-ion Batteries

Fe2O3/graphene composite anode materials have been successfully synthesized by a PVP-assisted homogeneous precipitation method. The size of Fe2O3 nanoparticles on the surface of graphene sheets was less than 35 nm. Fe2O3 nanoparticles and graphene sheets formed a network structure. Electrochemical properties were evaluated in two-electrode cells versus metallic lithium. The Fe2O3/graphene composite exhibited excellent electrochemical lithium storage performances. The first discharge and charge capacities were 1600 and 1053 mA h g -1 at a current density of 100 mA g -1 , and the first coulomb efficiencies was 65.8%. The reversible specific capacity remained 893 mA h g -1 and the capacity retention was 84.8% after 100 cycles.