Synthesis and Performance of NaTi2(PO4)3/VGCF@C Anode Composite Material for Aqueous Sodium-Ion Batteries
نویسندگان
چکیده
This study combines self-prepared NaTi2(PO4)3 (NTP) with commercial vapor-grown carbon fiber (VGCF) using a solid state calcination, then coats it to synthesize the composite anode material NaTi2(PO4)3/VGCF@C (NTP/VGCF@C). The microstructure and electrochemical properties of were analyzed analysis testing equipment. Single phase NTP shows nanoparticles polyhedral structure, there is good contact at interface between VGCFs. coating formed on particles displays nearly 6.5 nm thick layer amorphous carbon. From coin-cell battery performance measurements, after 850 cycles, NTP/VGCF@C exhibits an excellent retention rate 96.3% compared that pure when current density 200 mA/g. As result, lithium manganate (denoted as LMO) assembled into LMO-NTP/VGCF@C aqueous sodium-ion soft pack full system. initial capacity 31.07 mAh 0.5C, reversible discharge 95.8% 480 exhibiting long-cycle stability performance.
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ژورنال
عنوان ژورنال: Batteries
سال: 2023
ISSN: ['2313-0105']
DOI: https://doi.org/10.3390/batteries9050265