Electrochemical Characteristics of Anion-Redox Type Cathode Materials with High Specific Capacity

2020 ◽  
Vol MA2020-02 (2) ◽  
pp. 398-398
Author(s):  
Daisuke Okuda ◽  
Hiroaki Kobayashi ◽  
Masashi Ishikawa
Keyword(s):  
Cathode Materials ◽  
Specific Capacity ◽  
Electrochemical Characteristics ◽  
High Specific Capacity

Preparation of NiO Microspheres by Hydrothermal Method and its Electrochemical Capacitive Properties

2015 ◽  
Vol 814 ◽  
pp. 81-85 ◽  
Author(s):  
Qian Qian Li ◽  
Run Hua Fan ◽  
Ke Lan Yan ◽  
Kai Sun ◽  
Xu Ai Wang ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Electrochemical Impedance ◽  
Specific Capacity ◽  
Rate Capability ◽  
Average Diameter ◽  
Three Dimensions ◽  
Electrochemical Characteristics ◽  
X Ray Diffraction ◽  
High Specific Capacity ◽  
Capacitive Properties

The precursor Ni (OH)2 was synthesized by a simple hydrothermal method with hexamethylenetetramine ((CH2)6N4) as precipitant and template, and then NiO was gained after calcination. The phase and morphology of the synthesized product were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM), and the electrochemical capacitive characterization was performed using cyclic voltammetry (CV), chronopotentiometry and electrochemical impedance spectroscopy (EIS) in a 6mol/L KOH aqueous solution electrolyte. The result shows that spherical NiO without impurity was synthesized, the average diameter of the spheres is 5 um and these spheres were constructed by the interactive arrangement of many nanoflakes in three dimensions. This kind of NiO shows the typical electrochemical characteristics of pseudo capacitance with high specific capacity and excellent rate capability. The specific capacity can reach 515F/g at the current density of 1A/g

Potato Peel Based Carbon–Sulfur Composite as Cathode Materials for Lithium Sulfur Battery

2021 ◽  
Vol 21 (12) ◽  
pp. 6243-6247
Author(s):  
Arenst Andreas Arie ◽  
Shealyn Lenora ◽  
Hans Kristianto ◽  
Ratna Frida Susanti ◽  
Joong Kee Lee
Keyword(s):  
Cathode Materials ◽  
Porous Carbon ◽  
Chemical Activation ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Electrochemical Characteristics ◽  
Potato Peel ◽  
Lithium Sulfur Battery ◽  
Sulfur Battery ◽  
Lithium Sulfur

Lithium sulfur battery has become one of the promising rechargeable battery systems to replace the conventional lithium ion battery. Commonly, it uses carbon–sulfur composites as cathode materials. Biomass based carbons has an important role in enhancing its electrochemical characteristics due to the high conductivity and porous structures. Here, potato peel wastes have been utilized to prepare porous carbon lithium sulfur battery through hydrothermal carbonization followed by the chemical activation method using KOH. After sulfur loading, as prepared carbon–sulfur composite shows stable coulombic efficiencies of above 98% and a reversible specific capacity of 804 mAh g−1 after 100 cycles at current density of 100 mA g−1. These excellent electrochemical properties can be attributed to the unique structure of PPWC showing mesoporous structure with large specific surface areas. These results show the potential application of potato peel waste based porous carbon as electrode’s materials for lithium sulfur battery.

High-quality Prussian blue crystals as superior cathode materials for room-temperature sodium-ion batteries

2014 ◽  
Vol 7 (5) ◽  
pp. 1643-1647 ◽  
Author(s):  
Ya You ◽  
Xing-Long Wu ◽  
Ya-Xia Yin ◽  
Yu-Guo Guo
Keyword(s):  
Prussian Blue ◽  
Water Content ◽  
Cathode Materials ◽  
Room Temperature ◽  
Specific Capacity ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Cycle Stability ◽  
High Quality ◽  
High Specific Capacity

High-quality Prussian blue crystals with a small number of vacancies and a low water content show high specific capacity and remarkable cycle stability as cathode materials for Na-ion batteries.

Ordered mesoporous TiC–C composites as cathode materials for Li–O2 batteries

2016 ◽  
Vol 52 (13) ◽  
pp. 2713-2716 ◽  
Author(s):  
Feilong Qiu ◽  
Ping He ◽  
Jie Jiang ◽  
Xueping Zhang ◽  
Shengfu Tong ◽  
...  
Keyword(s):  
Cathode Materials ◽  
Specific Capacity ◽  
High Specific Capacity ◽  
Ordered Mesoporous ◽  
Low Overpotential

Ordered mesoporous TiC–C (OMTC) composites were prepared and served as catalysts for nonaqueous Li–O2 batteries. The OMTC cathodes showed high specific capacity, low overpotential and good cyclability. Furthermore, the discharge and charge processes were investigated extensively by XRD, XPS and in situ GC-MS methods.

Recent advances in cathode materials for rechargeable lithium–sulfur batteries

Nanoscale ◽  
2019 ◽  
Vol 11 (33) ◽  
pp. 15418-15439 ◽  
Author(s):  
Fang Li ◽  
Quanhui Liu ◽  
Jiawen Hu ◽  
Yuezhan Feng ◽  
Pengbin He ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Cathode Materials ◽  
Storage Systems ◽  
Low Cost ◽  
Specific Capacity ◽  
Promising Candidate ◽  
High Specific Capacity ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Li–S batteries are regarded as a promising candidate for next-generation energy storage systems due to their high specific capacity (1675 mA h g−1) and energy density (2600 W h kg−1) as well as the abundance, safety and low cost of S material.

A lithium–carbon nanotube composite for stable lithium anodes

2017 ◽  
Vol 5 (45) ◽  
pp. 23434-23439 ◽  
Author(s):  
Yalong Wang ◽  
Yanbin Shen ◽  
Zhaolong Du ◽  
Xiaofeng Zhang ◽  
Ke Wang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Energy Storage ◽  
Redox Potential ◽  
Cathode Materials ◽  
Specific Capacity ◽  
Electrochemical Energy Storage ◽  
High Specific Capacity ◽  
Storage Technology ◽  
Energy Storage Technology ◽  
Carbon Nanotube Composite

Li metal has been considered as the ultimate anode material for high-density electrochemical energy storage technology because of its extremely high specific capacity (3860 mAh g−1), lowest redox potential, and ability to enable battery chemistries with lithium free cathode materials.

scholarly journals Template-free synthesis of β-Na0.33V2O5microspheres as cathode materials for lithium-ion batteries

CrystEngComm ◽  
2015 ◽  
Vol 17 (26) ◽  
pp. 4774-4780 ◽  
Author(s):  
Qinguang Tan ◽  
Qinyu Zhu ◽  
Anqiang Pan ◽  
Yaping Wang ◽  
Yan Tang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Solvothermal Method ◽  
Specific Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
High Specific Capacity ◽  
Subsequent Calcination ◽  
Template Free ◽  
Good Rate Capability

Hierarchical nanosheet-assembled β-Na0.33V2O5microspheres have been fabricated by a solvothermal method with subsequent calcination in air, and exhibit high specific capacity and good rate capability.

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