Effect of LiFePO4 Cathode Thickness on Lithium Battery Performance

2015 ◽  
Vol 827 ◽  
pp. 146-150
Author(s):  
Ariska Rinda Adityarini ◽  
Eka Yoga Ramadhan ◽  
Endah Retno Dyartanti ◽  
Agus Purwanto
Keyword(s):  
Lithium Ion Battery ◽  
Polyvinylidene Fluoride ◽  
Lithium Battery ◽  
Lithium Iron Phosphate ◽  
Active Material ◽  
Lithium Ion ◽  
Iron Phosphate ◽  
Structure Characterization ◽  
Cathode Layer ◽  
Conductive Additive

Lithium ion battery is composed of three main parts, i.e. cathode, anode and electrolyte. In this work, we investigated the effect of LiFePO4 cathode composite’s thickness on performances of lithium battery. LiFePO4 cathode was prepared in a slurry that consisted of lithium iron phosphate (LiFePO4) powder as active material, acetylene black as conductive additive, polyvinylidene fluoride (PVDF) as binder, and N-methyl-2-pyrrolidone (NMP) as solvent. The slurry was then deposited on the aluminum substrate using doctor blade method in different thickness. The cathode layers were deposited with the thickness of 150, 200, 250 & 300 μm. The structure characterization of the material was analyzed by XRD, while the material’s morphology was analyzed by Scanning Electron Microscope (SEM). Performances of lithium ion battery with LiFePO4 cathode were evaluated using charge-discharge cycle test. It is found that battery made of cathode layer with 250 μm thickness shows the best performances.

Modification of liquid-phase synthesis of lithium-iron phosphate, a cathode material for lithium-ion battery

2012 ◽  
Vol 85 (6) ◽  
pp. 879-882 ◽  
Author(s):  
E. N. Kudryavtsev ◽  
R. V. Sibiryakov ◽  
D. V. Agafonov ◽  
V. N. Naraev ◽  
A. V. Bobyl’
Keyword(s):  
Liquid Phase ◽  
Cathode Material ◽  
Lithium Ion Battery ◽  
Lithium Iron Phosphate ◽  
Lithium Ion ◽  
Iron Phosphate ◽  
Phase Synthesis

scholarly journals Theoretical simulation of the optimal relation between active material, binder and conductive additive for lithium-ion battery cathodes

Energy ◽  
2019 ◽  
Vol 172 ◽  
pp. 68-78 ◽  
Author(s):  
D. Miranda ◽  
A. Gören ◽  
C.M. Costa ◽  
M.M. Silva ◽  
A.M. Almeida ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Active Material ◽  
Lithium Ion ◽  
Theoretical Simulation ◽  
Conductive Additive

scholarly journals An Overview of Lithium-Ion Battery Cathode Materials

2011 ◽  
Vol 1363 ◽  
Author(s):  
Yixu Wang ◽  
Hsiao-Ying Shadow Huang
Keyword(s):  
Energy Storage ◽  
Lithium Ion Battery ◽  
Cathode Materials ◽  
Lithium Iron Phosphate ◽  
Lithium Ion ◽  
Iron Phosphate ◽  
High Energy ◽  
Rechargeable Batteries ◽  
Environmental Benefits ◽  
Energy Storage Devices

ABSTRACTThe need for the development and deployment of reliable and efficient energy storage devices, such as lithium-ion rechargeable batteries, is becoming increasingly important due to the scarcity of petroleum. In this work, we provide an overview of commercially available cathode materials for Li-ion rechargeable batteries and focus on characteristics that give rise to optimal energy storage systems for future transportation modes. The study shows that the development of lithium-iron-phosphate (LiFePO4) batteries promises an alternative to conventional lithiumion batteries, with their potential for high energy capacity and power density, improved safety, and reduced cost. This work contributes to the fundamental knowledge of lithium-ion battery cathode materials and helps with the design of better rechargeable batteries, and thus leads to economic and environmental benefits.

scholarly journals Analysis of Long-Range Interaction in Lithium-Ion Battery Electrodes

2016 ◽  
Vol 13 (3) ◽  
Author(s):  
Aashutosh Mistry ◽  
Daniel Juarez-Robles ◽  
Malcolm Stein ◽  
Kandler Smith ◽  
Partha P. Mukherjee
Keyword(s):  
Lithium Ion Battery ◽  
Mesoscale Model ◽  
Electronic Conductivity ◽  
Active Material ◽  
Lithium Ion ◽  
Microstructural Characterization ◽  
Range Interaction ◽  
Electron Conduction ◽  
Conductive Additive ◽  
And Performance

The lithium-ion battery (LIB) electrode represents a complex porous composite, consisting of multiple phases including active material (AM), conductive additive, and polymeric binder. This study proposes a mesoscale model to probe the effects of the cathode composition, e.g., the ratio of active material, conductive additive, and binder content, on the electrochemical properties and performance. The results reveal a complex nonmonotonic behavior in the effective electrical conductivity as the amount of conductive additive is increased. Insufficient electronic conductivity of the electrode limits the cell operation to lower currents. Once sufficient electron conduction (i.e., percolation) is achieved, the rate performance can be a strong function of ion-blockage effect and pore phase transport resistance. Even for the same porosity, different arrangements of the solid phases may lead to notable difference in the cell performance, which highlights the need for accurate microstructural characterization and composite electrode preparation strategies.

Enhancement of Lithium Battery Performance by Thickness Anode Film Modification

2015 ◽  
Vol 827 ◽  
pp. 156-161
Author(s):  
Rani Cahyani Fajaryatun ◽  
Therecia Wulan Sukardi ◽  
Arif Jumari ◽  
Agus Purwanto
Keyword(s):  
Polyvinylidene Fluoride ◽  
Lithium Battery ◽  
Lithium Iron Phosphate ◽  
Iron Phosphate ◽  
Electrochemical Performances ◽  
X Ray Diffraction ◽  
Battery Voltage ◽  
X Ray ◽  
Mesocarbon Microbeads ◽  
Anode Film

A lithium battery was composed of anode, cathode, and separator. The performance of lithium battery was influenced by the thickness of film, the composition of material, and the effect of surfactant and binder. This research investigated the effect of the anode film thickness to the electrochemical performances of lithium battery. Mesocarbon microbeads (MCMB) and lithium iron phosphate (LiFePO4) were used respectively as anode and cathode. Mesocarbon microbeads, carbon black (conductive agent), polyvinylidene fluoride (PVDF) as a binder and N-methyl-2-pyrrolidone (NMP) as a solvent were mixed well to produce slurry. The slurry were then coated, dried and pressed. The anode had various thickness of 50 μm, 70 μm, 100 μm, and 150 μm. The cathode film was made with certain thickness. The performance of lithium battery was examined by Eight Channel Battery Analyzer, the composition of the anode sample was examined by XRD (X-Ray Diffraction), and the crystal structure of the anode sample was analyzed by SEM (Scanning Electron Microscope). The research showed that the thickness of anode film of 100 μm gave the best performance. The battery performance decreased if the thickness was more than 100 μm. The best performance of battery voltage were between 3649 mV and 3650 mV.

State Estimation for Lithium-Ion Batteries With Phase Transition Materials Via Boundary Observers

2020 ◽  
Vol 143 (4) ◽  
Author(s):  
Shumon Koga ◽  
Leobardo Camacho-Solorio ◽  
Miroslav Krstic
Keyword(s):  
Phase Transition ◽  
Lithium Ion Batteries ◽  
Lithium Iron Phosphate ◽  
Moving Boundary ◽  
Active Material ◽  
Lithium Ion ◽  
Estimation Algorithm ◽  
Iron Phosphate ◽  
Particle Model ◽  
Lithium Ions

Abstract Lithium iron phosphate (LiFePO4 or LFP) is a common active material in lithium-ion batteries. It has been observed that this material undergoes phase transitions during the normal charge and discharge operation of the battery. Electrochemical models of lithium-ion batteries can be modified to account for this phenomenon at the expense of some added complexity. We explore this problem for the single particle model (SPM) where the underlying dynamic model for diffusion of lithium ions in phase transition materials is a partial differential equation (PDE) with a moving boundary. We derive a novel boundary observer to estimate the concentration of lithium ions together with a moving boundary radius from the SPM via the backstepping method for PDEs, and simulations are provided to illustrate the performance of the observer. Our comments are stated on the gap between the proposed observer and a complete state-of-charge (SoC) estimation algorithm for lithium-ion batteries with phase transition materials.

State Estimation for Lithium Ion Batteries With Phase Transition Materials

2017 ◽  
Author(s):  
Shumon Koga ◽  
Leobardo Camacho-Solorio ◽  
Miroslav Krstic
Keyword(s):  
Phase Transition ◽  
Lithium Ion Batteries ◽  
Lithium Iron Phosphate ◽  
Moving Boundary ◽  
Active Material ◽  
Lithium Ion ◽  
Estimation Algorithm ◽  
Iron Phosphate ◽  
Particle Model ◽  
Lithium Ions

Lithium Iron Phosphate (LiFePO4 or LFP) is a common active material in lithium-ion batteries. It has been observed that this material undergoes phase transitions during the normal charge and discharge operation of the battery. Electrochemical models of lithium-ion batteries can be modified to account for this phenomena at the expense of some added complexity. We explore this problem for the single particle model (SPM) where the underlying dynamic model for diffusion of lithium ions in phase transition materials is a partial differential equation (PDE) with a moving boundary. An observer is derived for the concentration of lithium ions from the SPM via the backstepping method for PDEs in a rigorous way and simulations are provided to illustrate the performance of the observer. Our comments are stated on the gap between the proposed observer and a complete state-of-charge (SoC) estimation algorithm for lithium-ion batteries with phase transition materials.

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