Lithium Ion Intercalation/Deintercalation Properties of Aluminum Nanoparticles as Anode Materials for Li–ion Batteries

Chin J Mater Res

2011, Vol. 25

Issue (4): 386-390 DOI:

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Lithium Ion Intercalation/Deintercalation Properties of Aluminum Nanoparticles as Anode Materials for Li–ion Batteries

ZHAO Yanan¹, XUE Fanghong¹, HUANG Hao¹, LIU Chunjing¹, GAN Xiaorong², DONG Xinglong¹

1.School of Materials Science and Engineering, Dalian University of Technology, Dalian, Liaoning 116024
2.Faculty of Chemical, Environmental and Biological Science and Technology, Dalian University of Technology, Dalian, Liaoning 116024

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ZHAO Yanan XUE Fanghong HUANG Hao LIU Chunjing GAN Xiaorong DONG Xinglong. Lithium Ion Intercalation/Deintercalation Properties of Aluminum Nanoparticles as Anode Materials for Li–ion Batteries. Chin J Mater Res, 2011, 25(4): 386-390.

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Abstract Aluminum nanoparticles were fabricated by a physical vapor condensation method (DC arc discharge). The samples were characterized by X-ray diffraction (XRD), Transmission electron microscope (TEM) and galvanostatic cycling. Al particle size is about 100 nm, and it is coated by amorphous Al2O3. Anode slurries prepared were consisted of Al powder, acetylene black and polyvinylidene fluoride (PVDF) binder. The effects of current density on the electrochemical properties were investigated. The results show that Al electrode for the minimal current density delivers the highest initial discharge capacity (Li intercalation process) of 951.9 mAh/g but cycle life is poor. Al electrode for the maximal current density delivers initial discharge capacities of 879.7 mAh/g and possesses relatively good cycleability. After the initial discharge only two composites (AlLi and Al2Li3) in Al electrode are found, which correspond to the initial discharge capacity.

Received: 08 April 2011

ZTFLH:

TQ152

Fund:

Supported by Research Fund for the Doctoral Program of Higher Education of China No.20100041110032.

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https://www.cjmr.org/EN/ OR https://www.cjmr.org/EN/Y2011/V25/I4/386

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