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2 results on '"High power electrodes"'

1. A high power Sn–C/C–LiFePO4 lithium ion battery

Author

Brutti, Sergio, Hassoun, Jusef, Scrosati, Bruno, Lin, Chi-Yen, Wu, Han, and Hsieh, Han-Wei

Subjects
*IRON compounds, *ENERGY conversion, *ANODES, *CARBON electrodes, *SCANNING electron microscopy, *METAL microstructure, *ELECTROCHEMICAL analysis
Abstract

Abstract: In this work we report a lithium ion battery characterized by very high rate capability, environmental compatibility, and potentially low cost. The battery is based on a lithium alloying, Sn–C, anode and an optimized lithium iron phosphate, LiFePO4, cathode. The morphology and structure of the materials were characterized by using scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD) techniques, while the electrochemical performances were evaluated by galvanostatic cycling and electrochemical impedance spectroscopy (EIS). Both the anode and the cathode reveal enhanced structure and morphology as well as excellent properties in terms of specific capacity, cycle life and, in particular, rate capability. The full Sn–C/LiFePO4 lithium ion battery operates at 2.8 V with a stable capacity of about 120 mAh g−1 for 100 cycles at the high rate of 3C. The cell has an energy density of 350 W h kg−1 and a power density of 2.4 kW kg−1. These interesting properties candidate the lithium ion battery here reported as a very appealing energy storage system, in particular for applications requiring high power densities. [Copyright &y& Elsevier]

Published
2012
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2. A high power Sn–C/C–LiFePO4 lithium ion battery

Author

Bruno Scrosati, Han Wei Hsieh, Han Wu, Jusef Hassoun, Sergio Brutti, and Chi-Yen Lin

Subjects
Materials science, Lithium vanadium phosphate battery, Analytical chemistry, Energy Engineering and Power Technology, Socio-culturale, Electrochemistry, LiFePO4 cathode, Nanostructured Sn–C anode, High power electrodes, Lithium ion battery, Lithium-ion battery, law.invention, chemistry.chemical_compound, Economica, law, Electrical and Electronic Engineering, Physical and Theoretical Chemistry, Renewable Energy, Sustainability and the Environment, Lithium iron phosphate, Ambientale, Potassium-ion battery, Nanowire battery, Cathode, Anode, chemistry
Abstract

In this work we report a lithium ion battery characterized by very high rate capability, environmental compatibility, and potentially low cost. The battery is based on a lithium alloying, Sn–C, anode and an optimized lithium iron phosphate, LiFePO 4 , cathode. The morphology and structure of the materials were characterized by using scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD) techniques, while the electrochemical performances were evaluated by galvanostatic cycling and electrochemical impedance spectroscopy (EIS). Both the anode and the cathode reveal enhanced structure and morphology as well as excellent properties in terms of specific capacity, cycle life and, in particular, rate capability. The full Sn–C/LiFePO 4 lithium ion battery operates at 2.8 V with a stable capacity of about 120 mAh g −1 for 100 cycles at the high rate of 3C. The cell has an energy density of 350 W h kg −1 and a power density of 2.4 kW kg −1 . These interesting properties candidate the lithium ion battery here reported as a very appealing energy storage system, in particular for applications requiring high power densities.

Published
2012

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