木质素基碳微球的合成及其电化学性能研究
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- 英文论文题名：Ligninsulfonate based carbon microspheres as anode materials for sodium-ion battery
- 论文作者：杨春媛 ; 时志强
- 英文论文作者：Chunyuan Yang ; Zhiqiang Shi ; College of Materials Science and Engineering ; Tianjin Polytechnic University
- 年：2016
- 作者机构：天津工业大学材料科学与工程学院;
- 论文关键词：木质素 ; 碳微球 ; 喷雾干燥 ; 钠离子电池
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十分会：化学电源
- 语种：中文
- 分类号：O636.2
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十分会 ; 化学电源
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：209k
- 原文格式：D
- 会议级别：全国
摘要
木质素是继纤维素后第二大丰富的有机高分子~([1]),是一种天然、可再生、可完全降解的无定型多酚聚合体,具有较强的的分子内和分子间氢键。在制浆造纸过程中,采用含有游离的钙、镁、钠、氨的酸性亚硫酸盐溶液时,木质素被磺化为水溶性的木质素磺酸盐。长期以来,木质素及其衍生物被作为废物受到忽视。东~([2])等人用木质素磺酸盐和聚丙烯晴复合,采用静电纺丝的方法制备锂离子电池负极材料,其放电容量为150mAh/g,开展了木质素及其衍生物在能源材料方面的应用。由于碳微球具有堆积密度高、结构稳定性好,球形的各向同性的性质被认为对材料的倍率性能有益,易于形成没有择优取向的电极,这有利于电极内电流的均匀分布。故本文通过简单的喷雾干燥法,把木质素制备成微球,在不同的温度下进行炭化,组装钠离子电池,探究其电化学性能。
Lignin is the second most abundant natural polymer after cellulose~([1]).It is a kind of natural,renewable,and can be degradation completely with strong intra molecular and intermolecular hydrogen bond of the amorphous polyphenol polymers.In paper process,when using free calcium,magnesium,sodium acid sulfite solution,lignin is sulfonated water-soluble lignosulfonate.For a long time,lignin and its derivatives were overlooked as trash.Choi D I~([2]) used lignin sulfonate and polypropylene composites,adopted electrostatic spinning process for preparing lithium ion battery anode material,the discharge capacity was 150mAh/g,promoted the application of lignin in energy materials aspects.Since the carbon microspheres is considered beneficial rate capability of high bulk density,good structural stability,which facilitates uniform distribution of current within the electrode.In this paper,we used a simple spray-drying method,to preparation the microspheres of lignin,after carbonization,sodium-ion batteries was assembled at different temperatures,to explore their electrochemical properties.
Lignin is the second most abundant natural polymer after cellulose~([1]).It is a kind of natural,renewable,and can be degradation completely with strong intra molecular and intermolecular hydrogen bond of the amorphous polyphenol polymers.In paper process,when using free calcium,magnesium,sodium acid sulfite solution,lignin is sulfonated water-soluble lignosulfonate.For a long time,lignin and its derivatives were overlooked as trash.Choi D I~([2]) used lignin sulfonate and polypropylene composites,adopted electrostatic spinning process for preparing lithium ion battery anode material,the discharge capacity was 150mAh/g,promoted the application of lignin in energy materials aspects.Since the carbon microspheres is considered beneficial rate capability of high bulk density,good structural stability,which facilitates uniform distribution of current within the electrode.In this paper,we used a simple spray-drying method,to preparation the microspheres of lignin,after carbonization,sodium-ion batteries was assembled at different temperatures,to explore their electrochemical properties.
引文
[1]Bedia,J.;Rodnguez-Mirasol,T.;Cordero,J.Chem.Technol.Biotechnol.2007,82:548-557.
[2]Choi D I.;Lee J N,Song J,et al.Journal of Solid State Electrochemistry,2013,17(9):2471-2475.
[2]Choi D I.;Lee J N,Song J,et al.Journal of Solid State Electrochemistry,2013,17(9):2471-2475.