期刊论文

Xiong, XR;Qiu, YB

英文

Journal of Energy Storage

2352-152X

2024

80

110339

10.1016/j.est.2023.110339

Fig. 1a displays the chemical polymerization synthesis of PPy/C composites, in which the denim fabrics were annealed and activated in a molten salt medium at 600 °C to obtain porous activated carbons. Subsequently, the pyrrole monomers entered the porous carbons or adsorbed on their surface through the physical stirring and vacuum drying process. Finally, the pyrrole monomers were oxidized to produce radical cations to form PPy through a coupling and deprotonation process [23]. Figs. 1b and

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Hybrid composites are widely regarded as the most promising choice for anode material in sodium -ion batteries. However, integrating high capacity and excellent cyclic stability into composites remains challenging. This work demonstrates a thin -liquid -layer polymerization approach to fabricate an integrated porous polypyrrole/carbon composite (PPy/C) for a high-performance sodium storage anode. By adjusting the monomer concentration reasonably and combining with heterostructure engineering, the optimized PPy/C was used as the anode for sodium -ion batteries, achieving rapid electrochemical k...