scholarly journals Meso Carbon Micro Bead (MCMB) Based Graphitized Carbon for Negative Electrode in Lithium Ion Battery

2016 ◽  
Vol 1 (1) ◽  
Author(s):  
Fadli Rohman
Keyword(s):  
Lithium Ion Battery ◽  
Polyvinylidene Fluoride ◽  
Active Material ◽  
Lithium Ion ◽  
Crystal Phase ◽  
Cyclic Voltammograms ◽  
Full Cell ◽  
Graphitized Carbon ◽  
Charge Discharge ◽  
Discharge Test

Lithium ion battery performance of graphitized Meso Carbon Micro Beads (MCMB) as an anode material was investigated in full cell battery system containing LiCoO<sub>2</sub> cathode, PE separator and LiPF<sub>6</sub> electrolyte. The commercial MCMB, which was fabricated by Linyi<sup>TM</sup>, was sintered at 500⁰C for five hour to make graphitized MCMB.  The microstructure of graphitized MCMB was characterized using XRD and SEM to show the crystalinity, crystal phase and morphology of the MCMB particle. The result indicated that the crystal phase of the sample was changed into graphitized carbon .The electrode was made using coating method. We used copper foil as the substrate for anode. The anode materials consist of graphitized MCMB (active material), Polyvinylidene fluoride/PVDF (binder) and acetylene black (additive material). Full cell battery was tested using charge-discharge and cyclic voltammetry (CV) methods. From the CV characterization, cyclic voltammograms of the cell show characteristic lithium intercalation through reduction-oxidation peak. Charge-discharge test showed the discharge and charge capacity of the cells. According charge discharge test, commercial MCMB was better that graphitized MCMB.

scholarly journals Meso Carbon Micro Bead (MCMB) Based Graphitized Carbon for Negative Electrode in Lithium Ion Battery

2016 ◽  
Vol 1 ◽  
Author(s):  
Fadli Rohman
Keyword(s):  
Lithium Ion Battery ◽  
Polyvinylidene Fluoride ◽  
Active Material ◽  
Lithium Ion ◽  
Crystal Phase ◽  
Cyclic Voltammograms ◽  
Full Cell ◽  
Graphitized Carbon ◽  
Charge Discharge ◽  
Discharge Test

Lithium ion battery performance of graphitized Meso Carbon Micro Beads (MCMB) as an anode material was investigated in full cell battery system containing LiCoO<sub>2</sub> cathode, PE separator and LiPF<sub>6</sub> electrolyte. The commercial MCMB, which was fabricated by Linyi<sup>TM</sup>, was sintered at 500⁰C for five hour to make graphitized MCMB.  The microstructure of graphitized MCMB was characterized using XRD and SEM to show the crystalinity, crystal phase and morphology of the MCMB particle. The result indicated that the crystal phase of the sample was changed into graphitized carbon .The electrode was made using coating method. We used copper foil as the substrate for anode. The anode materials consist of graphitized MCMB (active material), Polyvinylidene fluoride/PVDF (binder) and acetylene black (additive material). Full cell battery was tested using charge-discharge and cyclic voltammetry (CV) methods. From the CV characterization, cyclic voltammograms of the cell show characteristic lithium intercalation through reduction-oxidation peak. Charge-discharge test showed the discharge and charge capacity of the cells. According charge discharge test, commercial MCMB was better that graphitized MCMB.

scholarly journals Anisotropic alignments of hierarchical Li2SiO3/TiO2 @nano-C anode//LiMnPO4@nano-C cathode architectures for full-cell lithium-ion battery

2020 ◽  
Vol 7 (5) ◽  
pp. 863-880 ◽  
Author(s):  
Hesham Khalifa ◽  
Sherif A El-Safty ◽  
Abdullah Reda ◽  
Mohamed A Shenashen ◽  
Alaa I Eid
Keyword(s):  
Energy Density ◽  
Lithium Ion Battery ◽  
Lithium Ion ◽  
High Energy ◽  
Cell Models ◽  
Full System ◽  
Full Cell ◽  
Coin Cell ◽  
Nano Carbon ◽  
Charge Discharge

Abstract We report on low-cost fabrication and high-energy density of full-cell lithium-ion battery (LIB) models. Super-hierarchical electrode architectures of Li2SiO3/TiO2@nano-carbon anode (LSO.TO@nano-C) and high-voltage olivine LiMnPO4@nano-carbon cathode (LMPO@nano-C) are designed for half- and full-system LIB-CR2032 coin cell models. On the basis of primary architecture-power-driven LIB geometrics, the structure keys including three-dimensional (3D) modeling superhierarchy, multiscale micro/nano architectures and anisotropic surface heterogeneity affect the buildup design of anode/cathode LIB electrodes. Such hierarchical electrode surface topologies enable continuous in-/out-flow rates and fast transport pathways of Li+-ions during charge/discharge cycles. The stacked layer configurations of pouch LIB-types lead to excellent charge/discharge rate, and energy density of 237.6 Wh kg−1. As the most promising LIB-configurations, the high specific energy density of hierarchical pouch battery systems may improve energy storage for long-driving range of electric vehicles. Indeed, the anisotropic alignments of hierarchical electrode architectures in the large-scale LIBs provide proof of excellent capacity storage and outstanding durability and cyclability. The full-system LIB-CR2032 coin cell models maintain high specific capacity of ∼89.8% within a long-term life period of 2000 cycles, and average Coulombic efficiency of 99.8% at 1C rate for future configuration of LIB manufacturing and commercialization challenges.

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.

scholarly journals Selection of Optimum Binder for Silicon Powder Anode in Lithium-Ion Batteries Based on the Impact of Its Molecular Structure on Charge–Discharge Behavior

Coatings ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 732
Author(s):  
Shimoi ◽  
Komatsu ◽  
Tanaka
Keyword(s):  
Composite Material ◽  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Active Material ◽  
Lithium Ion ◽  
Silicon Powder ◽  
Discharge Characteristics ◽  
The Impact ◽  
Charge Discharge ◽  
Silicon Particles

The high-capacity and optimal cycle characteristics of the silicon powder anode render it essential in lithium-ion batteries. The authors attempted to obtain a composite material by coating individual silicon particles of µm-order diameter with conductive carbon additive and resin to serve as a binder of an anode in a lithium-ion battery and thus improve its charge–discharge characteristics. Structural strain and hardness due to stress on the binder resin were alleviated by the adhesion between silicon or copper foil as a collector and the binder resin, preventing the systematic deterioration of the anode composite matrix immersed in electrolyte compositions including Li salt and fluoride. Moreover, the binder resin itself was confirmed to play a role of active material with occlusion and release of Li-ion. Furthermore, charge–discharge characteristics of the silicon powder anode active material strongly depend on the type of binder resin used; therefore, the binder resin used as composite material in rechargeable batteries should be carefully selected. Some resins for binding silicon particles were investigated for their mechanical and electrochemical properties, and a carbonized polyimide obtained a good charge–discharge cyclic property in a lithium-ion battery.

An aqueous rechargeable lithium ion battery with long cycle life and overcharge self-protection

2021 ◽  
Author(s):  
Zhiguo Hou ◽  
Lei Zhang ◽  
Jianwu Chen ◽  
Yali Xiong ◽  
Xueqian Zhang ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Cycling Stability ◽  
Cycle Life ◽  
Long Cycle ◽  
Full Cell ◽  
Long Cycle Life ◽  
Excellent Cycling Stability ◽  
Self Protection

Zn2+ added into electrolyte can effectively suppress H2 evolution. Therefore, a LiMn2O4/NaTi2(PO4)3 full cell exhibits enhanced overcharging performance and excellent cycling stability up to 10 000 cycles.

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