Na-X zeolite templated and sulfur-impregnated porous carbon as the cathode for a high-performance Li–S battery

RSC Advances ◽  
2016 ◽  
Vol 6 (11) ◽  
pp. 9117-9123 ◽  
Author(s):  
Yanhui Cui ◽  
Jun Chen ◽  
Kevin Huang ◽  
Chenqiang Du ◽  
Junwei Wu ◽  
...  
Keyword(s):  
Discharge Capacity ◽  
Porous Carbon ◽  
High Performance ◽  
Reversible Capacity ◽  
X Zeolite ◽  
First Discharge Capacity

A-ZPC-S composite is an excellent and promising cathode for high-performance Li-S batteries. With 46 wt% sulfur loading, it exhibited a first discharge capacity of 1204 mA h g−1and a reversible capacity of 691 mA h g−1after 300 cycles, fading only 0.142% per cycle.

Heteroatom doped porous carbon derived from hair as an anode with high performance for lithium ion batteries

RSC Advances ◽  
2014 ◽  
Vol 4 (109) ◽  
pp. 63784-63791 ◽  
Author(s):  
Junke Ou ◽  
Yongzhi Zhang ◽  
Li Chen ◽  
Hongyan Yuan ◽  
Dan Xiao
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
Porous Carbon ◽  
Human Hair ◽  
High Performance ◽  
Rate Capability ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Superior Performance ◽  
High Reversible Capacity

The HDPC derived from human hair shows superior performance as an anode material for LIBs with high reversible capacity (1331 mA h g−1 at 0.1 A g−1) and excellent rate capability (205 mA h g−1 at 10 A g−1).

Graphene highly scattered in porous carbon nanofibers: a binder-free and high-performance anode for sodium-ion batteries

2017 ◽  
Vol 5 (4) ◽  
pp. 1698-1705 ◽  
Author(s):  
Yongchang Liu ◽  
Li-Zhen Fan ◽  
Lifang Jiao
Keyword(s):  
Carbon Nanofibers ◽  
Porous Carbon ◽  
High Performance ◽  
Rate Capability ◽  
Reversible Capacity ◽  
Electrospinning Technique ◽  
Flexible Membrane ◽  
Binder Free ◽  
Cu Foil ◽  
Cycling Life

Graphene mono- or bi-layers highly scattered in porous carbon nanofibers are preparedviaan electrospinning technique. The nanocomposite with a flexible membrane tightly adherent on Cu foil is directly used as a binder-free anode for Na-ion batteries, demonstrating high reversible capacity, unprecedented rate capability, and ultra-long cycling life.

scholarly journals SiO2/C Composite as a High Capacity Anode Material of LiNi0.8Co0.15Al0.05O2 Battery Derived from Coal Combustion Fly Ash

2020 ◽  
Vol 10 (23) ◽  
pp. 8428
Author(s):  
Arif Jumari ◽  
Cornelius Satria Yudha ◽  
Hendri Widiyandari ◽  
Annisa Puji Lestari ◽  
Rina Amelia Rosada ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Fly Ash ◽  
Anode Material ◽  
Discharge Capacity ◽  
Coal Combustion ◽  
High Performance ◽  
Heating Temperature ◽  
High Capacity ◽  
Lithium Ion ◽  
Reversible Capacity

Abundantly available SiO2 (silica) has great potential as an anode material for lithium-ion batteries because it is inexpensive and flexible. However, silicon oxide-based anode material preparation usually requires many complex steps. In this article, we report a facile method for preparing a SiO2/C composite derived from coal combustion fly ash as an anode material for Li-ion batteries. SiO2 was obtained by caustic extraction and HCl precipitation. Then, the SiO2/C composite was successfully obtained by mechanical milling followed by heat treatment. The samples were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). Electrochemical properties were tested using an 18650 cylindrical cell utilizing LiNi0.8Co0.15Al0.05O2 (NCA) as the counter electrode. Based on the obtained results, the physiochemical characteristics and electrochemical performance, it was determined that SiO2/C composites were greatly affected by the temperature of heat treatment. The best result was obtained with the SiO2 content of 10% w/w, heating temperature of 500 °C, initial specific discharge capacity of 586 mAh g−1 at 0.1 C (1 C = 378 mAh g−1), and reversible capacity of 87% after 20 cycles. These results confirmed that the obtained materials had good initial discharge capacity, cyclability, high performance, and exhibited great potential as an anode material for LIBs.

High Performance of Na2/3Ni1/4Mn3/4O2 Thin-Film Cathode for Sodium-Ion Micro-Batteries

2017 ◽  
Vol 864 ◽  
pp. 84-88
Author(s):  
Qian Peng ◽  
Guang Yang
Keyword(s):  
Thin Film ◽  
Discharge Capacity ◽  
Current Density ◽  
High Performance ◽  
Rate Capability ◽  
Reversible Capacity ◽  
High Rate ◽  
X Ray Diffraction ◽  
Measurement Results ◽  
Steel Substrates

Thin films of Na2/3Ni1/4Mn3/4O2 were prepared on stainless steel substrates by pulsed laser deposition technique. X-ray diffraction and Field-emission Scanning Electron Microscope results show that the thin film deposited at 750°C is highly preferred orientation with homogeneous nanoscale particles. Galvanostatic charge/discharge measurement results reveal that the reversible capacity retention is 91% after 30 cycles with a high initial discharge capacity of 175.3 mAhg-1 at a current density of 13 mAg-1. It also exhibits excellent rate capability, as the current density increases to 260 mAg-1, about 80% of its initial capacity can be retained. After the high rate measurement, the NNMO electrode can deliver a discharge capacity of 110.4 mAhg-1 when the current density was reduced back to 13 mAg-1.

scholarly journals Flake (NH4)6Mo7O24/Polydopamine as a High Performance Anode for Lithium Ion Batteries

Materials ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1115
Author(s):  
Ying Xie ◽  
Xiang Xiong ◽  
Kai Han
Keyword(s):  
Lithium Ion Batteries ◽  
Discharge Capacity ◽  
Current Density ◽  
High Performance ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Ammonium Molybdate ◽  
Drying Methods ◽  
Lithium Storage ◽  
A Current

Ammonium molybdate tetrahydrate ((NH4)6Mo7O24) (AMT) is commonly used as the precursor to synthesize Mo-based oxides or sulfides for lithium ion batteries (LIBs). However, the electrochemical lithium storage ability of AMT itself is unclear so far. In the present work, AMT is directly examined as a promising anode material for Li-ion batteries with good capacity and cycling stability. To further improve the electrochemical performance of AMT, AMT/polydopamine (PDA) composite was simply synthesized via recrystallization and freeze drying methods. Unlike with block shape for AMT, the as-prepared AMT/PDA composite shows flake morphology. The initial discharge capacity of AMT/PDA is reached up to 1471 mAh g−1. It delivers a reversible discharge capacity of 702 mAh g−1 at a current density of 300 mA g−1, and a stable reversible capacity of 383.6 mA h g−1 is retained at a current density of 0.5 A g−1 after 400 cycles. Moreover, the lithium storage mechanism is fully investigated. The results of this work could potentially expand the application of AMT and Mo-based anode for LIBs.

Nitrogen-rich porous carbon derived from biomass as a high performance anode material for lithium ion batteries

2015 ◽  
Vol 3 (12) ◽  
pp. 6534-6541 ◽  
Author(s):  
Junke Ou ◽  
Yongzhi Zhang ◽  
Li Chen ◽  
Qian Zhao ◽  
Yan Meng ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
Porous Carbon ◽  
High Performance ◽  
Rate Capability ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Superior Performance ◽  
High Reversible Capacity

The OHC shows superior performance as an anode material for LIBs with a high reversible capacity (1181 mA h g−1 at 0.1 A g−1) and an excellent rate capability (304 mA h g−1 at 5 A g−1).

scholarly journals SnO2 Quantum Dots Distributed along V2O5 Nanobelts for Utilization as a High-Capacity Storage Hybrid Material in Li-Ion Batteries

Molecules ◽  
2021 ◽  
Vol 26 (23) ◽  
pp. 7262
Author(s):  
I. Neelakanta Reddy ◽  
Bhargav Akkinepally ◽  
Venkatesu Manjunath ◽  
Gaddam Neelima ◽  
Mogalahalli V. Reddy ◽  
...  
Keyword(s):  
Discharge Capacity ◽  
High Performance ◽  
Electrochemical Impedance ◽  
Electronic Conductivity ◽  
High Capacity ◽  
Reversible Capacity ◽  
Impedance Analysis ◽  
Li Ion Batteries ◽  
Synthesis Strategy ◽  
Li Ion

In this study, the facile synthesis of SnO2 quantum dot (QD)-garnished V2O5 nanobelts exhibiting significantly enhanced reversible capacity and outstanding cyclic stability for Li+ storage was achieved. Electrochemical impedance analysis revealed strong charge transfer kinetics related to that of V2O5 nanobelts. The SnO2 QD-garnished V2O5 nanobelts exhibited the highest discharge capacity of ca. 760 mAhg−1 at a density of 441 mAg−1 between the voltage ranges of 0.0 to 3.0 V, while the pristine V2O5 nanobelts samples recorded a discharge capacity of ca. 403 mAhg−1. The high capacity of QD-garnished nanobelts was achieved as an outcome of their huge surface area of 50.49 m2g−1 and improved electronic conductivity. Therefore, the as-presented SnO2 QD-garnished V2O5 nanobelts synthesis strategy could produce an ideal material for application in high-performance Li-ion batteries.

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