Effect of High Loading Glycine on Fe2O3 Nano Oval as Anode for Lithium-Ion Battery

2019 ◽  
Vol 964 ◽  
pp. 215-220
Author(s):  
Lukman Noerochim ◽  
Agny Muchamad Reza ◽  
Budi Agung
Keyword(s):  
Lithium Ion Battery ◽  
Discharge Capacity ◽  
Lithium Ion ◽  
Nyquist Plot ◽  
Discharge Process ◽  
Promising Candidate ◽  
Hydrothermal Temperature ◽  
Specific Discharge ◽  
Li Ion ◽  
Charge Discharge

In this work, Fe2O3 nanooval is successfully synthesized with variation of glycine composition of 9, 12, and 15 mmol at hydrothermal temperature of 160 °C. The Fe2O3 nanooval is indexed by XRD as α-Fe2O3. SEM and TEM images show that the 12 mmol of glycine has the largest diameter with the perfect nanooval form. Nyquist plot shows that the 12 mmol of glycine sample has the best conductivity value of 8.26x10-5 S/m. The CV of sample 12 mmol delivers the best intercalate/de-intercalate with ΔV of 0.82 V. The 12 mmol sample shows the largest specific discharge capacity of 631.62 mAh/g. It is attributed to high conductivity and high kinetics reaction of Li ion during charge-discharge process. Therefore, Fe2O3 nanooval is a promising candidate as anode for lithium-ion battery.

scholarly journals In-Situ Arc Discharge-Derived FeSn2/Onion-Like Carbon Nanocapsules as Improved Stannide-Based Electrocatalytic Anode Materials for Lithium-Ion Batteries

Catalysts ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 950 ◽  
Author(s):  
Dandan Han ◽  
Amrita Chatterjee ◽  
Long Hin Man ◽  
Siu Wing Or
Keyword(s):  
Crystal Growth ◽  
Discharge Capacity ◽  
Arc Discharge ◽  
Lithium Ion ◽  
Core Shell ◽  
Discharge Process ◽  
Capacity Retention ◽  
Specific Discharge ◽  
Charge Discharge

Core/shell-structured FeSn2/onion-like carbon (FeSn2/OLC) nanocapsules of confined size range of sub-50 nm are synthesized via an in-situ arc-discharge process, and are evaluated in comparison with FeSn2 nanoparticles as an improved stannide-based electrocatalytic anode material for Li-ion batteries (LIBs). The in-situ arc-discharge process allows a facile one-pot procedure for forming crystalline FeSn2 stannide alloy nanoparticle cores coated by defective OLC thin shells in addition to a confined crystal growth of the FeSn2 nanoparticle cores. The LIB cells assembled using the FeSn2/OLC nanocapsules as the electrocatalytic anodes exhibit superior full specific discharge capacity of 519 mAh·g−1 and specific discharge capacity retention of ~62.1% after 100 charge-discharge cycles at 50 mA·g−1 specific current. The electrochemical stability of FeSn2/OLC nanocapsules is demonstrated from the good cycle stability of the LIBs with a high specific discharge capacity retention of 67.5% on a drastic change in specific current from 4000 to 50 mA·g−1. A formation mechanism is proposed to describe the confined crystal growth of the FeSn2 nanoparticle cores and the formation of the FeSn2/OLC core/shell structure. The observed electrochemical performance enhancement is ascribed to the synergetic effects of the enabling of a reversible lithiation process during charge-discharge of the LIB cells by the FeSn2 nanoparticle cores as well as the protection of the FeSn2 nanoparticle cores from volume change-induced pulverization and solid electrolyte interphase-induced passivation by the OLC shells.

Estimation of temperature distribution of LiFePO4 lithium ion battery during charge–discharge process

Ionics ◽  
2016 ◽  
Vol 22 (9) ◽  
pp. 1517-1525 ◽  
Author(s):  
Liubin Song ◽  
Lingjun Li ◽  
Zhongliang Xiao ◽  
Jian Zhang ◽  
Zhong Cao ◽  
...  
Keyword(s):  
Temperature Distribution ◽  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Discharge Process ◽  
Charge Discharge

Carbon nanotubes coupled with layered graphite to support SnTe nanodots as high-rate and ultra-stable lithium-ion battery anodes

Nanoscale ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 3782-3789
Author(s):  
Huanhui Chen ◽  
Guanxia Ke ◽  
Xiaochao Wu ◽  
Wanqing Li ◽  
Hongwei Mi ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Carbon Nanotubes ◽  
Lithium Ion Battery ◽  
Lithium Ion ◽  
High Rate ◽  
Layered Crystal ◽  
Ion Diffusion ◽  
Promising Candidate ◽  
Layered Crystal Structure ◽  
Li Ion

SnTe exhibits a layered crystal structure, which enables fast Li-ion diffusion and easy storage, and is considered to be a promising candidate for an advanced anode material.

scholarly journals Stabilized lithium-ion battery anode performance by calcium-bridging of two dimensional siloxene layers

2017 ◽  
Vol 46 (11) ◽  
pp. 3655-3660 ◽  
Author(s):  
Haruo Imagawa ◽  
Hiroshi Itahara
Keyword(s):  
Lithium Ion Battery ◽  
Structural Stability ◽  
Discharge Capacity ◽  
Lithium Ion ◽  
Two Dimensional ◽  
Battery Anode ◽  
Charge Discharge

A Ca-bridged siloxene exhibits stable charge/discharge capacity as a lithium-ion battery anode, suggesting the structural stability of Si-planes with Si6H6.

An experimental and computational study to understand the lithium storage mechanism in molybdenum disulfide

Nanoscale ◽  
2014 ◽  
Vol 6 (17) ◽  
pp. 10243-10254 ◽  
Author(s):  
Uttam Kumar Sen ◽  
Priya Johari ◽  
Sohini Basu ◽  
Chandrani Nayak ◽  
Sagar Mitra
Keyword(s):  
Experimental Evidence ◽  
Lithium Ion Battery ◽  
Computational Study ◽  
Lithium Ion ◽  
Elemental Sulphur ◽  
High Rate ◽  
Discharge Process ◽  
Lithium Storage ◽  
Storage Mechanism ◽  
Battery Anode

Experimental evidence and theoretical correlation of the formation of elemental sulphur during the discharge process of MoS2, a high rate lithium ion battery anode.

Improved Li-ion diffusion process in TiO2/rGO anode for lithium-ion battery

2017 ◽  
Vol 727 ◽  
pp. 998-1005 ◽  
Author(s):  
Juan Li ◽  
Jianfeng Huang ◽  
Jiayin Li ◽  
Liyun Cao ◽  
Hui Qi ◽  
...  
Keyword(s):  
Diffusion Process ◽  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Ion Diffusion ◽  
Li Ion

scholarly journals Lithium-Rich Cobalt-Free Manganese-Based Layered Cathode Materials for Li-Ion Batteries: Suppressing the Voltage Fading

Energies ◽  
2020 ◽  
Vol 13 (13) ◽  
pp. 3487
Author(s):  
Ashraf Abdel-Ghany ◽  
Ahmed M. Hashem ◽  
Alain Mauger ◽  
Christian M. Julien
Keyword(s):  
Layered Structure ◽  
Performance Enhancement ◽  
Electrochemical Impedance ◽  
Discharge Process ◽  
High Porosity ◽  
Li Ion Batteries ◽  
Hydrothermal Route ◽  
Li Ion ◽  
Fading Rate ◽  
Charge Discharge

Lithium-rich layered oxides are recognized as promising materials for Li-ion batteries, owing to higher capacity than the currently available commercialized cathode, for their lower cost. However, their voltage decay and cycling instability during the charge/discharge process are problems that need to be solved before their practical application can be envisioned. These problems are mainly associated with a phase transition of the surface layer from the layered structure to the spinel structure. In this paper, we report the AlF3-coating of the Li-rich Co-free layered Li1.2Ni0.2Mn0.6O2 (LLNMO) oxide as an effective strategy to solve these problems. The samples were synthesized via the hydrothermal route that insures a very good crystallization in the layered structure, probed by XRD, energy-dispersive X-ray (EDX) spectroscopy, and Raman spectroscopy. The hydrothermally synthesized samples before and after AlF3 coating are well crystallized in the layered structure with particle sizes of about 180 nm (crystallites of ~65 nm), with high porosity (pore size 5 nm) determined by Brunauer–Emmett–Teller (BET) specific surface area method. Subsequent improvements in discharge capacity are obtained with a ~5-nm thick coating layer. AlF3-coated Li1.2Ni0.2Mn0.6O2 delivers a capacity of 248 mAh g−1 stable over the 100 cycles, and it exhibits a voltage fading rate of 1.40 mV per cycle. According to the analysis from galvanostatic charge-discharge and electrochemical impedance spectroscopy, the electrochemical performance enhancement is discussed and compared with literature data. Post-mortem analysis confirms that the AlF3 coating is a very efficient surface modification to improve the stability of the layered phase of the Li-rich material, at the origin of the significant improvement of the electrochemical properties.

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