Carbon coating on the current collector and LiFePO4 nanoparticles – Influence of sp and sp-like disordered carbon on the electrochemical properties

2015 ◽  
Vol 293 ◽  
pp. 613-625 ◽  
Author(s):  
Pravati Swain ◽  
M. Viji ◽  
Pavana S.V. Mocherla ◽  
C. Sudakar
Keyword(s):  
Electrochemical Properties ◽  
Carbon Coating ◽  
Current Collector ◽  
Disordered Carbon

Electrochemical Properties of Carbon-Coated NbO2 as a Negative Electrode for Lithium-Ion Batteries

2016 ◽  
Vol 724 ◽  
pp. 87-91 ◽  
Author(s):  
Chang Su Kim ◽  
Yong Hoon Cho ◽  
Kyoung Soo Park ◽  
Soon Ki Jeong ◽  
Yang Soo Kim
Keyword(s):  
Electrochemical Properties ◽  
Lithium Ion Batteries ◽  
Ball Milling ◽  
Carbon Coating ◽  
Electrochemical Impedance ◽  
Active Material ◽  
Negative Electrode ◽  
Lithium Ion ◽  
Transfer Resistance ◽  
Carbon Coated

We investigated the electrochemical properties of carbon-coated niobium dioxide (NbO2) as a negative electrode material for lithium-ion batteries. Carbon-coated NbO2 powders were synthesized by ball-milling using carbon nanotubes as the carbon source. The carbon-coated NbO2 samples were of smaller particle size compared to the pristine NbO2 samples. The carbon layers were coated non-uniformly on the NbO2 surface. The X-ray diffraction patterns confirmed that the inter-layer distances increased after carbon coating by ball-milling. This lead to decreased charge-transfer resistance, confirmed by electrochemical impedance spectroscopy, allowing electrons and lithium-ions to quickly transfer between the active material and electrolyte. Electrochemical performance, including capacity and initial coulombic efficiency, was therefore improved by carbon coating by ball-milling.

Mechanical, thermal, and electrochemical properties of Pr doped ceria from wafer curvature measurements

2018 ◽  
Vol 20 (43) ◽  
pp. 27350-27360 ◽  
Author(s):  
Yuxi Ma ◽  
Jason D. Nicholas
Keyword(s):  
Electrochemical Properties ◽  
Material Properties ◽  
Current Collector ◽  
Doped Ceria ◽  
Wafer Curvature ◽  
Curvature Measurements ◽  
Exchange Material ◽  
First Time ◽  
Electrochemical Oxygen

This work demonstrates, for the first time, that a variety of disparate and technologically-relevent thermal, mechanical, and electrochemical oxygen-exchange material properties can all be obtained from in situ, current-collector-free wafer curvature measurements.

Electrochemical properties of Si film electrodes with TiNi shape memory alloy as a current collector

2013 ◽  
Vol 577 ◽  
pp. S190-S194 ◽  
Author(s):  
Gyu-bong Cho ◽  
Bo-min Kim ◽  
Jung-pil Noh ◽  
Yeon-min Im ◽  
Sang-hun Lee ◽  
...  
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Electrochemical Properties ◽  
Current Collector ◽  
A Current

scholarly journals Electrochemical Properties of PANI as Single Electrode of Electrochemical Capacitors in Acid Electrolytes

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Haihua Zhu ◽  
Shunjin Peng ◽  
Weijie Jiang
Keyword(s):  
Electrochemical Properties ◽  
Chemical Structure ◽  
Active Material ◽  
Electrochemical Capacitor ◽  
Current Collector ◽  
Carbon Paper ◽  
Solution Polymerization ◽  
Chemical Solution ◽  
Galvanostatic Charge ◽  
Charge Discharge

The polyaniline (PANI) powder with globular sponge-like morphology was prepared by chemical solution polymerization, and its morphology and chemical structure were characterized by scanning electron microscope (SEM) and Fourier transform infrared spectroscopy (FTIR), respectively. The single electrode of electrochemical capacitor was made using the prepared PANI powder as active material and carbon paper as current collector. Electrochemical properties of PANI as a single electrode in 1 M HCl and 1 M H2SO4electrolyte solution were tested by galvanostatic charge/discharge (GCD) and cyclic voltammetry (CV) techniques. It has been found that PANI has higher specific capacitance of 302.43 Fg−1, higher specific energy of 54.44 Wh·kg−1at 0.5 Ag−1, and higher working potential in 1 M HCl than those in 1 M H2SO4.

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