研究了非晶碳纳米管作为锂离子电池负极材料的电化学行为以及氧化处理对其嵌锂容量的影响. 结果表明:在20mAh·g-1的充放电条件下,原始非晶碳纳米管首次可逆容量为305mAh·g-1;在300-450℃氧化处理后,非晶碳纳米管中的氧和氢氧根中和了管壁中的大量不饱和键,非晶碳纳米管中死锂的位置减少,纯度提高,嵌锂可逆容量增加.在300℃氧化处理的非晶碳纳米管首次可逆容量最高可达533mAh·g-1,并有良好的循环寿命.
参考文献
[1] | Qiu Weihua,Zhang Gang,Lu Shigang,Liu Qingguo,Correlation between the structure and electrochemical properties of carbon materials,Solid State Ionics,121,73(1999) |
[2] | T.Kunio,Lithium batteries grow in popularity as makers refine technology,JEE,31(6),63(1999) |
[3] | WANG Jincai,LI Feng,LIU Chang,LI Hongxi,Research status and development of carbon negative electrode materials for lithium ion batteries,Corrosion Sience and Protection Technology,16(5),300(2004)(王金才,李峰,刘畅,李洪锡,锂离子电池碳负极材料的研究现状与发展,腐蚀科学与防护技术,18(5),300(2004)) |
[4] | JIANG Xiaobing,ZHAO Xinbing,ZHANG Lijuan,CAO Gaoshao,LU Chunping,ZHOU Bangchang,Intermetallic compound CoFe3Sb12 as anode material for lithium ion batteries,Chinese J.of Materials Research,15(4),469(2001)(蒋小兵,赵新兵,张丽娟,曹高劭,吕春萍,周邦昌,新型锂离子电池负极材料,材料研究学报,15(4),469(2001)) |
[5] | Z.H.Yang,Y.H.Zhou,S.B.Sang,Y.Feng,H.Q.Wu,Lithium insertion into multi-walled raw carbon nanotubes pre-doped with lithium,Meterials Chemistry and Physics,89,295(2005) |
[6] | K.T.Prem,S.A.Manuel,P.Thayananth,V.Subramanian,S.Gopukumar,N.G.Renganathan,N.Muniyandi,Thermally oxidized graphites as anodes for lithium-ion cells,J.Power Sources,97-98,118(2001) |
[7] | M.Sharon,W.K.Hsu,H.W.Kroto,D.R.M.Walton,A.Kawahara,T.Ishihara,Y.Takita,Camphor-based carbon nanotubes as an anode in lithium secondary batteries,J.Power Sources,104,148(2002) |
[8] | C.H.Mi,G.S.Cao,X.B.ZHAO,A non-GIC mechanism of lithium storage in chemical etched MWNTs,J.Electroanalytical Chemistry,562,217(2004) |
[9] | J.Y.Eom,H.S.Kwon,J.Liu,O.Zhou,Lithium insertion into purified and etched multi-walled carbon nanotubes synthesized on supported catalysts by thermal CVD,Carbon,42,2589(2004) |
[10] | G.T.Wu,C.S.Wang,X.B.Zhang,H.S.Yang,Z.F.Qi,P.M.He,W.Z.Li,J.Elecrtochem Soc.,146,1696(1999) |
[11] | H.Shimoda,B.Gao,X.P.Tang,A.Kleinhammes,L.Fleming,Y.Wu,O.Zhou,Lithium intercalation into opened singl-wall carbon nanotubes:storage capacity and electronic propertise,Phy.Rev.Lett.,88(1),015502(2002) |
[12] | E.Frackowiak,S.Gautier,H.Gaucher,S.Bonnamy,F.Beguin,Electrochemical storage of lithium multiwalled carbon nanotubes,Carbon,37,61(1999) |
[13] | Y.N.Liu,X.L.Song,T.K.Zhao,J.W.Zhu,H.Michael,P.Fritz,Amorphous carbon nanotubes produced by a temperature controlled DC arc discharge,Carbon,42(8-9),1852(2004) |
[14] | Tingkai Zhao,Yongning Liu,Jiewu Zhu,Temperature and catalyst effects on the production of amorphous carbon nanotubes by a modified arc discharge,Carbon,43(14),3909(2005) |
[15] | LIU Yongning,SONG Xiaolong,Arc discharging furnace for preparing carbon nanotubeas,China Patent,No.CN01240373.3(2002)(柳永宁,宋小龙,纳米碳管电弧发生炉,专利号:CN01240373.3(2002)) |
[16] | Tingkai Zhao,Yongning Liu,Jiewu Zhu,Gas and pressure effects on the synthesis of amorphous carbon nanotubes by an arc discharge at controlled temperature,Chinese Science Bulletin,29(24),2547(2004) |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%