TiO2/copper-coated carbon black (TiO2/Cu/CB) composite materials were successfully prepared by a facile sol-gel method and characterized by SEM and XRD.The results demonstrated that TiO2 was uniformly distributed on the surface of copper-coated carbon black (Cu/CB) and the conductivity of TiO2 was improved remarkably.The electrochemical measurements revealed the TiO2/Cu/CB exhibited higher lithium storage activity and excellent rate capability than the pure TiO2.For instance,the improvement Li+ ion storage capacity of TiO2/Cu/CB shown at 200.8mAh/g after charge-discharge 100 cycles at 100mA/g,which was higher than pure TiO2 showing at 47.7mAh/g.In mechanism,the synergistic effect between Li+ ion storage capacity of TiO2 and conductivity of copper-coated CB contributed to the improvement electrochemical performances of TiO2/Cu/CB.
Chen Shaobei, Xu Guiying, Wang Kun, Ju Dongying, Ge Hui, Zhou Weimin
. Study on preparation and electrochemical property of TiO2/Cu/CB composite material[J]. New Chemical Materials, 2020
, 48(9)
: 235
-239
.
DOI: 10.19817/j.cnki.issn 1006-3536.2020.09.051
[1] Goodenough J B,Park K S.The Li-ion rechargeable battery:a perspective[J].Journal of the American Chemical Society,2013,135(4):1167-1176.
[2] Marom R,Leifer S F,Jacob N,et al.A review of advanced and practical lithium battery materials[J].Journal of Materials Chemistry,2011,21(27):9938-9954.
[3] Kim T H,Park J S,Chang S K,et al.The current move of lithium ion batteries towards the next phase[J].Advanced Energy Materials,2012,2(7):860-872.
[4] Luo F,Sun Y,Chu G,et al.Fundamental scientific aspects oflithium batteries (Ⅷ)-anode electrode materials[J].Energy Storage Science and Technology,2014,3(2):146-163.
[5] Kumar T P,Kumari T S D,Stephan A M.Carbonaceousanode materials for lithium-ion batteries-the road ahead[J].Journal of the Indian Institute of Science,2009,89(4):393-424.
[6] Chen J S,Lou X W.Anatase TiO2 nanosheet:an ideal host structure for fast and efficient lithium insertion/extraction[J].Electrochemistry Communications,2009,11(12):2332-2335.
[7] Yoshio M,Brodd J R,Kozawa A,et al.Lithium-ion batteries:science and technologies[M].New York:Springer,2009:5-6.
[8] Saravanan K,Ananthanarayanan K,Balaya P.Mesoporous TiO2 with high packing density for superior lithium storage[J].Energy & Environmental Science,2010,3(7):939-948.
[9] Sun Z,Huang X,Muhler M,et al.A carbon-coated TiO2(B) nanosheet composite for lithium ion batteries[J].Chemical Communications,2014,50(41):5506-5509.
[10] Chen Z,Ilias B,Sun Y K,et al.Titanium-based anode materials for safe lithium-ion batteries[J].Advanced Functional Materials,2013,23(8):959-969.
[11] Ren Y,Liu Z,Pourpoint F,et al.Nanoparticulate TiO2(B):an anode for lithium-ion batteries[J].Angewandte Chemie International Edition,2012,51(9):2164-2167.
[12] Bao S J,Bao Q L,Li C M,et al.Novel porous anatase TiO2 nanorods and their high lithium electroactivity[J].Electrochemistry Communication,2007,9(5):1233-1238.
[13] Serventi A M,Rodrigues I R,Trudeau M L,et al.Microstructural and electrochemical investigation of functional nanostructured TiO2 anode for Li-ions batteries[J].Journal of Power Sources,2012,202(2):357-363.
[14] Qing R,Liu L,Kim H,et al.Electronic property dependence of electrochemical performance for TiO2/CNT core-shell nanofibers in Lithium Ion Batteries[J].Electrochimica Acta,2015,180(5):295-306.
[15] Kim J H,Choi W,Jung H G,et al.Anatase TiO2-reduced graphene oxide nanostructures with high-rate sodium storage performance[J].Journal of Alloys and Compounds,2017,690(3):390-396.
[16] Liang C,Gao M,Pan H,et al.Lithium alloys and metal oxides as high-capacity anode materials for lithium-ion batteries[J].Journal of Alloys and Compounds,2013,575(3):246-56.
[17] Zhang Z H,Zhang L D,Li W,et al.Carbon-coated mesoporous TiO2nanocrystals grown on grapheme for lithium-ion batteries[J].Appllied Materials & Intrefaces,2015,7(19):10395-10400.
[18] Zhang Z H,Zhou Z F,Nie S,et al.Flower-like hydrogenated TiO2(B) nanostructures as anode materials for high performance lithium ion batteries[J].Journal of Power Sources,2014,267(7):388-393.
[19] Sahu M,Wu B,Zhu L,et al.Role of dopant concentration,crystal phase and partical size on microbial inactivation of Cu-doped TiO2 nanoparticles[J].Nanotechnology,2011,22(41):415-420.
[20] Iijima M,Yamazaki M,Nomura Y,et al.Effect of structure of cationic dispersants on stability of carbonblack nanoparticles and further process ability through layer-by-layer surface modification[J].Chemical Enginering Science,2013,85(5):30-37.
[21] Zhang J G,Wang L M,Zhang S M,et al.The copper and copper alloy powders application and research status[J].Powder Metall Ind,2013,23(1):52-57.
