Facile coating strategy of Si/C composite anode for high-performance lithium-ion battery
نویسندگان
چکیده
Abstract Attributed to its high capacity by alloying with lithium, silicon is considered be new generation of anodes that can replace graphite and receives much attention. Alleviating the electrode failure caused volume expansion during lithiation shrink delihiation in plays a pivotal role promoting industrial application anodes. In this article, we proposed facile carbon coating strategy on surface nanospheres buffer stress charge discharge. By controlling low molecular weight, an ethanol-soluble phenolic resin was synthesized further self-assembled nanoparticles form precursor. Uniform Si/C composites were fabricated via pyrolysis. Diffraction x-rays confirmed retained pristine crystalline structure. Scanning electron microscopy revealed homogeneous wrap amorphous layer superficies silicon. The galvanostatic charge-discharge test proved excellent durability Undergoing 50 cycles lithiation/delithiation at 0.2C, retention 96%, as 800 mAh/g. This but efficient compatible large-scale production improves feasibility practical silicon-based
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ژورنال
عنوان ژورنال: Journal of physics
سال: 2023
ISSN: ['0022-3700', '1747-3721', '0368-3508', '1747-3713']
DOI: https://doi.org/10.1088/1742-6596/2534/1/012003