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用于锂离子电池的石墨化碳干凝胶

Graphitized Carbon Xerogels for Lithium-Ion Batteries.

作者信息

Canal-Rodríguez Maria, Arenillas Ana, Villanueva Sara F, Montes-Morán Miguel A, Menénedez J Angel

机构信息

Instituto Nacional del Carbón (INCAR-CSIC), Francisco Pintado Fe 26, 33011 Oviedo, Asturias, Spain.

出版信息

Materials (Basel). 2019 Dec 26;13(1):119. doi: 10.3390/ma13010119.

DOI:10.3390/ma13010119
PMID:31887992
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6981815/
Abstract

Carbon xerogels with different macropore sizes and degrees of graphitization were evaluated as electrodes in lithium-ion batteries. It was found that pore structure of the xerogels has a marked effect on the degree of graphitization of the final carbons. Moreover, the incorporation of graphene oxide to the polymeric structure of the carbon xerogels also leads to a change in their carbonaceous structure and to a remarkable increase in the graphitic phase of the samples studied. The sample with the highest degree of graphitization (i.e., hybrid graphene-carbon xerogel) displayed the highest capacity and stability over 100 cycles, with values even higher than those of the commercial graphite SLP50 used as reference.

摘要

对具有不同大孔尺寸和石墨化程度的碳干凝胶作为锂离子电池电极进行了评估。发现干凝胶的孔结构对最终碳的石墨化程度有显著影响。此外，将氧化石墨烯掺入碳干凝胶的聚合物结构中也会导致其碳质结构发生变化，并使所研究样品的石墨相显著增加。石墨化程度最高的样品（即石墨烯-碳干凝胶复合材料）在100次循环中表现出最高的容量和稳定性，其数值甚至高于用作参考的商业石墨SLP50。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ce1/6981815/f43f3692998b/materials-13-00119-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ce1/6981815/6e194e712304/materials-13-00119-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ce1/6981815/4ac2c5f8d456/materials-13-00119-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ce1/6981815/7adc816b48fb/materials-13-00119-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ce1/6981815/b5f7d268d311/materials-13-00119-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ce1/6981815/212d9e90aa98/materials-13-00119-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ce1/6981815/f80a77a654b0/materials-13-00119-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ce1/6981815/f43f3692998b/materials-13-00119-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ce1/6981815/6e194e712304/materials-13-00119-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ce1/6981815/4ac2c5f8d456/materials-13-00119-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ce1/6981815/7adc816b48fb/materials-13-00119-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ce1/6981815/b5f7d268d311/materials-13-00119-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ce1/6981815/212d9e90aa98/materials-13-00119-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ce1/6981815/f80a77a654b0/materials-13-00119-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ce1/6981815/f43f3692998b/materials-13-00119-g007.jpg

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本文引用的文献

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Adv Mater. 2015 Jan 21;27(3):527-45. doi: 10.1002/adma.201402962. Epub 2014 Oct 29.
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Graphitized pitch-based carbons with ordered nanopores synthesized by using colloidal crystals as templates.
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