[1]李建斌,陈金媛,任玉荣,等.喷雾干燥法制备线球状SiO/CNTs复合负极材料[J].常州大学学报(自然科学版),2022,34(03):26-36.[doi:10.3969/j.issn.2095-0411.2022.03.005]
　LI Jianbin,CHEN Jinyuan,REN Yurong,et al.Fabrication of Yarn-Ball Structured SiO/CNTs Anode by Spray Drying Method[J].Journal of Changzhou University(Natural Science Edition),2022,34(03):26-36.[doi:10.3969/j.issn.2095-0411.2022.03.005]
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喷雾干燥法制备线球状SiO/CNTs复合负极材料()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
第34卷
期数:
2022年03期
页码:
26-36
栏目:
材料科学与工程
出版日期:
2022-05-28

文章信息/Info

Title:
Fabrication of Yarn-Ball Structured SiO/CNTs Anode by Spray Drying Method
文章编号:
2095-0411(2022)03-0026-11
作者:
李建斌1; 2; 3; 陈金媛1; 任玉荣1; 2; 3; 彭工厂4; 黄小兵5; 袁红东6
(1.常州大学材料科学与工程学院,江苏常州213164;2.江苏省新能源汽车动力电池制造技术工程研究中心(常州大学),江苏常州213164;3.常州市动力电池智能制造高技术重点实验室(常州大学),江苏常州213164;4.中国科学院成都有机化学研究所,四川成都610041;5.湖南文理学院化学与材料工程学院,湖南常德415000;6.常州百利锂电智慧工厂有限公司,江苏常州213022)
Author(s):
LI Jianbin1; 2; 3;  CHEN Jinyuan1;  REN Yurong1; 2; 3;  PENG Gongchang4;  HUANG Xiaobing5; YUAN Hongdong6
(1.School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China; 2.Jiangsu Province Engineering Research Center of Intelligent Manufacturing Technology for the New Energy Vehicle Power Battery, Changzhou University, Changzhou 213164, China; 3.Changzhou Key Laboratory of Intelligent Manufacturing and Advanced Technology for Power Battery, Changzhou University, Changzhou 213164, China; 4.Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China; 5.College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, China; 6.Changzhou Baili Lithium Battery Smart Factory Co., Ltd., Changzhou 213022, China)
关键词:
氧化亚硅;  碳纳米管;  负极材料;  锂离子电池;  喷雾干燥技术
Keywords:
silicon monoxide;  carbon nanotubes;  anode;  lithium-ion battery;  spray drying
分类号:
TM 912.9
DOI:
10.3969/j.issn.2095-0411.2022.03.005
文献标志码:
A
摘要:
以氧化亚硅(SiO)和碳纳米管(CNTs)为原料,采用喷雾干燥技术一步制备了线球状的SiO/CNTs复合负极材料,从SEM和TEM图中,可以观察到SiO微米片团聚形成二次类球型颗粒,CNTs包覆在SiO片上形成线球状结构。一方面,CNTs可以作为包覆层缓解SiO在脱嵌锂过程中的体积膨胀效应; 另一方面,CNTs作为导电骨架可以有效提高复合材料的导电性,有利于电极材料容量的发挥。当CNTs的质量分数为15%时,SiO/CNTs复合负极材料发挥出最佳电化学性能,在500 mA/g的电流密度下循环300圈之后,可逆比容量为633 mA·h/g,容量保持率为62.2%。
Abstract:
The yarn-ball structured SiO/CNTs composites were obtained by spray drying method. As revealed in SEM and TEM images, SiO agglomerates to form secondary spherical particles, and CNTs are coated on the surface of SiO to form the yarn-ball structured material. On the one hand, CNTs can absorb the volume change stress of SiO during the cycling process. On the other hand, CNTs serve as a conductive network, it can improve the conductivity of the overall material and reduce the electrochemical impedance, which is more conducive to deliver the capacity. Among a series of samples, 15% CNTs mass fraction in SiO/CNTs has the best electrochemical performance. After 300 cycles at 500 mA/g, it still delivers a reversible specific capacity of 633 mA·h/g, and the capacity retention is 62.2%.

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备注/Memo

备注/Memo:
收稿日期: 2021-12-31。
基金项目: 国家自然科学基金资助项目(22078029); 江苏省双创资助项目(JSSCBS20210881)。
作者简介: 李建斌(1990—), 男, 山东临沂人, 博士, 讲师。通信联系人: 任玉荣(1973—), E-mail: ryrchem@cczu.edu.cn
更新日期/Last Update: 1900-01-01