Graphite, a suitable positive electrode material for high-energy electrochemical capacitors

2006 ◽  
Vol 8 (9) ◽  
pp. 1481-1486 ◽  
Author(s):  
Hongyu Wang ◽  
Masaki Yoshio
Keyword(s):  
Electrode Material ◽  
Electrochemical Capacitors ◽  
High Energy ◽  
Positive Electrode ◽  
Positive Electrode Material

Band gap modified boron doped NiO/Fe3O4 nanostructure as the positive electrode for high energy asymmetric supercapacitors

RSC Advances ◽  
2016 ◽  
Vol 6 (2) ◽  
pp. 1380-1387 ◽  
Author(s):  
Sanjit Saha ◽  
Milan Jana ◽  
Partha Khanra ◽  
Pranab Samanta ◽  
Hyeyoung Koo ◽  
...  
Keyword(s):  
Band Gap ◽  
Hydrothermal Method ◽  
Electrode Material ◽  
High Energy ◽  
Positive Electrode ◽  
Asymmetric Supercapacitor ◽  
Asymmetric Supercapacitors ◽  
Boron Doped ◽  
Positive Electrode Material ◽  
One Step

A boron doped NiO/Fe3O4 nanostructure was successfully synthesized by a facile one-step hydrothermal method and used as the positive electrode material in asymmetric supercapacitor.

Organic positive-electrode material utilizing both an anion and cation: a benzoquinone-tetrathiafulvalene triad molecule, Q-TTF-Q, for rechargeable Li, Na, and K batteries

2019 ◽  
Vol 43 (3) ◽  
pp. 1626-1631 ◽  
Author(s):  
Minami Kato ◽  
Titus Masese ◽  
Masaru Yao ◽  
Nobuhiko Takeichi ◽  
Tetsu Kiyobayashi
Keyword(s):  
Energy Density ◽  
Electrode Material ◽  
High Energy ◽  
Rechargeable Batteries ◽  
Positive Electrode ◽  
Design Concept ◽  
High Energy Density ◽  
Discharge Process ◽  
Positive Electrode Material ◽  
Charge Discharge

This study highlights the design concept of a positive electrode material which can accommodate both cations and anions during the charge/discharge process for realizing high energy density rechargeable batteries.

A high energy density Li-rich positive-electrode material with superior performances via a dual chelating agent co-precipitation route

2015 ◽  
Vol 3 (18) ◽  
pp. 9427-9431 ◽  
Author(s):  
Peiyu Hou ◽  
Long Xu ◽  
Jishun Song ◽  
Dawei Song ◽  
Xixi Shi ◽  
...  
Keyword(s):  
Energy Density ◽  
Electrode Material ◽  
Chelating Agent ◽  
High Energy ◽  
Positive Electrode ◽  
Cycle Life ◽  
High Energy Density ◽  
Positive Electrode Material ◽  
Co Precipitation ◽  
High Median

A new Li-rich positive-electrode material is successfully achieved via a dual chelating agent co-precipitation route, which delivers a high volumetric energy density of over 2100 W h L−1, superior cycle life and stable high median-voltage.

LiMO2@Li2MnO3 positive-electrode material for high energy density lithium ion batteries

2016 ◽  
Vol 21 (1) ◽  
pp. 145-152 ◽  
Author(s):  
Mohammed Adnan Mezaal ◽  
Limin Qu ◽  
Guanghua Li ◽  
Wei Liu ◽  
Xiaoyuan Zhao ◽  
...  
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
Electrode Material ◽  
Lithium Ion ◽  
High Energy ◽  
Positive Electrode ◽  
High Energy Density ◽  
Positive Electrode Material

scholarly journals Local structure and electrochemical performances of sulfurized polyethylene glycol after heat treatment

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Nobuhiko Takeichi ◽  
Toshikatsu Kojima ◽  
Hiroshi Senoh ◽  
Hisanori Ando
Keyword(s):  
Heat Treatment ◽  
Polyethylene Glycol ◽  
Electrode Material ◽  
Local Structure ◽  
High Energy ◽  
Positive Electrode ◽  
Electrochemical Performances ◽  
X Ray ◽  
Positive Electrode Material ◽  
X Ray Absorption

Abstract Designing a high-capacity positive electrode material is critical for the advancement of lithium-ion batteries. Sulfurized polyethylene glycol (SPEG), containing ca. 61 wt% of sulfur, is a promising positive electrode material that exhibits a large initial discharge capacity of more than 800 mAh g−1. In this study, we present the local structure and electrochemical performances of SPEG. A high-energy X-ray total scattering experiment revealed that sulfur in SPEG is predominantly fragmented and bound to carbon atoms. The changes in the physicochemical properties of SPEG due to heat treatment with nitrogen gas at various temperatures were investigated using thermogravimetric analysis, Raman spectroscopy, X-ray absorption near edge structure, and extended X-ray absorption fine structure. Comparing the electrochemical performances of SPEG after heat treatment at various temperatures, it was found that S–S and C=S bonds contribute to the overall electrochemical performance of SPEG.

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