When the test current was applied to 3 A g −1, it maintained a 357 mAh g −1 specific capacity with 60.16% retention.
SILICON CARBON CORE SHELL PARTICEL SYNTHSUS PDF
After going through 1000 cycles at 2 A g −1, it still possessed 89.78% retention and kept 622 mAh g −1. PDF On Oct 5, 2014, Julien Sourice published One Step Core-Shell Silicon/Carbon Nanoparticle Synthesis By Laser Pyrolysis: Application to Anode Material in Lithium-Ion Batteries Find, read and.
RH-Si/SiO electrode demonstrated extraordinary long-term cycling performance for LIBs. The pitch-derived soft carbon was evenly coated on the Si NPs and supplied outstanding electrical conductivity, while the oxygen of pitch and Ac caused SiO x growth on the Si NPs surface to buffer expansion. Herein, we created a core-shell structure (RH-Si/SiO that had a robust carbon-silicon interface with Si–C, Si–O–C, and Si–N bonding between rice husk-derived silicon nanoparticles (Si NPs) and pitch-derived soft carbon induced by 1-butyl-3-methyl-imidazole acetate (Ac). Even though abundant carbon-silicon composite has been designed to alleviate these problems, the unstable carbon-silicon interface makes it hard to present high-performance. Silicon (Si) as anode material has a very high theoretical specific capacity for lithium-ion batteries (LIBs), but there are serious problems such as volume expansion and poor conductivity. Such a silicon-carbon core-shell structure has the potential for not only improving conductivity, but also buffering the expansion of silicon as it lithiates, thus stabilizing its cycle stability and minimizing problems associated with particle pulverization, isolation, and SEI integrity (Jung, Y, Lee K, Oh, S.
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