Reduction of irreversible capacities of amorphous carbon materials for lithium ion battery anodes by Li2CO3 addition
Source abstract
Abstract
Abstract Amorphous carbon materials for lithium ion battery anodes which contain a small amount of Li 2 CO 3 were prepared by three methods. The obtained materials were characterized using X-ray diffraction (XRD) analysis, Raman spectroscopy and CO 2 adsorption experiments. Although the XRD profiles and Raman spectra of these materials were similar to those of carbon materials synthesized with no addition, the amount of CO 2 adsorbed was largely decreased by Li 2 CO 3 addition. These results suggest that the micropores in these materials were plugged and/or filled with Li 2 CO 3 . Galvanostatic lithium charging and discharging experiments showed that the irreversible capacity of the material can be significantly decreased by Li 2 CO 3 addition, which is thought to be due to the plugging of the pore inlets by Li 2 CO 3 . Moreover, it was also found that the reversible capacities of the materials can be increased by adjusting both the amount of Li 2 CO 3 addition and carbonization temperature.
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Research context
OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Supercapacitor Materials and Fabrication
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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