不同气氛下裂解含苯环聚硅氧烷制备锂离子电池Si-O-C复合负极材料的电池性能研究

刘相; 谢凯; 郑春满; 王军

doi:10.7498/aps.60.118202

摘要

在惰性气氛Ar和还原性气氛H2中通过高温裂解含苯环的聚硅氧烷分别制备了硅氧碳化物Si-O-C复合负极材料,并且采用了元素分析element analysis、广角粉末X射线衍射XRD、傅里叶激光拉曼光谱Raman等手段表征了二者组成和结构的差别.实验发现,在H2气氛中裂解制备的Si-O-C复合负极含有较高的可逆、较低的不可逆容量,而且可逆容量随温度的增加而增长.其中H2气氛中1000 ℃情况下制备的Si-O-C复合负极的可逆容量622 mAh/g,首次库仑效率59%.Si-O-C复合负极的不可逆容量与氧的含量相关,可逆容量可能与碳含量及碳结构,以及SiOC中硅的结构相关.在H2气氛中制备的Si-O-C负极材料是一种潜在的锂离子电池的负极材料.

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作者及机构信息

1.
国防科技大学航天与材料工程学院材料科学与应用化学系,长沙 410073;

2.
国防科技大学新型陶瓷纤维及复合材料国防科技重点实,长沙 410073

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施引文献

[1]	Hou Z F, Liu H Y, Zhu Z Z, Huang M C, Yang Y 2003 Acta Phys. Sin. 52 952(in Chinese)[侯柱锋、刘慧英、朱梓忠、黄美纯、杨勇 2003 物理学报 52 952]
[2]	Hou X H, Hu S J, Li W S, Zhao L Z, Yu H W, Tan C L 2008 Acta Phys. Sin. 57 2375(in Chinese)[侯贤华、胡社军、李伟善、赵灵智、余洪文、谭春林 2008 物理学报 57 2375]
[3]
[4]
[5]	Lee H Y, Lee S M 2004 Electrochem. Commun. 6 465
[6]	Zhang X W, Patil P K, Wang C, Appleby A J, Little F 2004 J. Power Sources 125 206
[7]
[8]	Chan C K, Peng H, Liu G, McIlwrath K, Zhang X F, Huggins R A, Cui Y 2007 Nat.Nanotechnol. 3 31
[9]
[10]	Kasavajjula U, Wang C, Appleby A J 2007 J. Power Sources 163 1003
[11]
[12]
[13]	Maranchi J P, Hepp A F, Kumta P N 2003 Electrochem. Solid-State Lett. 6 A198
[14]	Lee K L, Jung J Y, Lee S W, Moon H S, Park J W 2004 J. Power Sources 129 270
[15]
[16]
[17]	Ohara S, Suzuki J, Sekine K, Takamura T 2004 J. Power Sources 136 303
[18]
[19]	Uehara M, Suzuki J, Tamura K, Sekine K, Takamura T 2005 J. Power Sources 146 441
[20]	Chen L, Wang K, Xie X, Xie J 2006 Electrochem. Solid-State Lett. 9 A512
[21]
[22]	Chen L B, Yu H C, Xu C M, Wang T H 2009 Acta Phys. Sin. 58 5029 (in Chinese)[陈立宝、虞红春、许春梅、王太宏 2009 物理学报 58 5029]
[23]
[24]	Dimov N, Kugino S, Yoshio M 2003 Electrochim. Acta 48 1579
[25]
[26]
[27]	Wen Z S, Yang J, Wang B F, Wang K, Liu Y 2003 Electrochem. Commun. 5 165
[28]	Wang G X, Ahn J H, Yao J, Bewlay S, Liu H K 2004 Electrochem. Commun. 6 689
[29]
[30]
[31]	Wang G X, Yao J, Liu H K 2004 Electrochem. Solid-State Lett. 7 A250
[32]	Datta M K, Kumta P N 2006 J. Power Sources 158 557
[33]
[34]	Xing W, Wilson A M, Zank G, Dahn J R 1997 Solid State Ionics 93 239
[35]
[36]
[37]	Wilson A M, Xing W, Zank G, Yates B, Dahn J R 1997 Solid State Ionics 100 259
[38]
[39]	Wilson A M, Reimers J N, Fuller E W, Dahn J R 1994 Solid State Ionics 74 249
[40]	Wilson A M, Zank G, Eguchi K, Xing W, Dahn J R 1997 J. Power Sources 68 195
[41]
[42]
[43]	Ning L, Wu Y, Wang L, Fang S, Holze R 2005 J. Solid State Electrochem. 9 520
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[46]	Ahn D, Raj R 2011 J. Power Sources 196 2179
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[59]
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不同气氛下裂解含苯环聚硅氧烷制备锂离子电池Si-O-C复合负极材料的电池性能研究

摘要

作者及机构信息

1.
国防科技大学航天与材料工程学院材料科学与应用化学系,长沙 410073;

2.
国防科技大学新型陶瓷纤维及复合材料国防科技重点实,长沙 410073

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不同气氛下裂解含苯环聚硅氧烷制备锂离子电池Si-O-C复合负极材料的电池性能研究

English Abstract

Electrochemical property of Si-O-C composite anode materials prepared by pyrolyzing polysiloxane containing phenyl under different atmospheres

1.
Department of Material Science and Applied Chemistry, National University of Defence Technology, Changsha 410073, China;

2.
Key Laboratory of New Ceramic Fibers and Composites, National University of Defence Technology, Changsha 410073, China

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不同气氛下裂解含苯环聚硅氧烷制备锂离子电池Si-O-C复合负极材料的电池性能研究

摘要

作者及机构信息

1. 国防科技大学航天与材料工程学院材料科学与应用化学系,长沙 410073; 2. 国防科技大学新型陶瓷纤维及复合材料国防科技重点实,长沙 410073

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不同气氛下裂解含苯环聚硅氧烷制备锂离子电池Si-O-C复合负极材料的电池性能研究

English Abstract

Electrochemical property of Si-O-C composite anode materials prepared by pyrolyzing polysiloxane containing phenyl under different atmospheres

1. Department of Material Science and Applied Chemistry, National University of Defence Technology, Changsha 410073, China; 2. Key Laboratory of New Ceramic Fibers and Composites, National University of Defence Technology, Changsha 410073, China

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关于我们

1.
国防科技大学航天与材料工程学院材料科学与应用化学系,长沙 410073;

2.
国防科技大学新型陶瓷纤维及复合材料国防科技重点实,长沙 410073

1.
Department of Material Science and Applied Chemistry, National University of Defence Technology, Changsha 410073, China;

2.
Key Laboratory of New Ceramic Fibers and Composites, National University of Defence Technology, Changsha 410073, China