Reversible facile Rb+ and K+ ions de/insertion in a KTiOPO4-type RbVPO4F cathode material

2018 ◽  
Vol 6 (29) ◽  
pp. 14420-14430 ◽  
Author(s):  
Stanislav S. Fedotov ◽  
Aleksandr Sh. Samarin ◽  
Victoria A. Nikitina ◽  
Dmitry A. Aksyonov ◽  
Sergey A. Sokolov ◽  
...  
Keyword(s):  
Alkali Metal ◽  
Cathode Material ◽  
Cathode Materials ◽  
Metal Ion ◽  
Positive Electrode ◽  
Type Structure

In this paper, we report on a novel RbVPO4F fluoride phosphate, which adopts the KTiOPO4 (KTP) type structure and complements the AVPO4F (A = alkali metal) family of positive electrode (cathode) materials for metal-ion batteries.

scholarly journals Thermophysical Characterization of a Layered P2 Type Structure Na0.53MnO2 Cathode Material for Sodium Ion Batteries

Batteries ◽  
2021 ◽  
Vol 7 (1) ◽  
pp. 16
Author(s):  
Ijaz Ul Mohsin ◽  
Carlos Ziebert ◽  
Magnus Rohde ◽  
Hans Jürgen Seifert
Keyword(s):  
Thermal Diffusivity ◽  
Cathode Material ◽  
Specific Heat ◽  
Cathode Materials ◽  
Evolved Gas Analysis ◽  
Type Structure ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Scanning Calorimetry

Over the last decade, the demand for safer batteries with excellent performance and lower costs has been intensively increasing. The abundantly available precursors and environmental friendliness are generating more and more interest in sodium ion batteries (SIBs), especially because of the lower material costs compared to Li-ion batteries. Therefore, significant efforts are being dedicated to investigating new cathode materials for SIBs. Since the thermal characterization of cathode materials is one of the key factors for designing safe batteries, the thermophysical properties of a commercial layered P2 type structure Na0.53MnO2 cathode material in powder form were measured in the temperature range between −20 and 1200 °C by differential scanning calorimetry (DSC), laser flash analysis (LFA), and thermogravimetry (TG). The thermogravimetry (TG) was combined with mass spectrometry (MS) to study the thermal decomposition of the cathode material with respect to the evolved gas analysis (EGA) and was performed from room temperature up to 1200 °C. The specific heat (Cp) and the thermal diffusivity (α) were measured up to 400 °C because beyond this temperature, the cathode material starts to decompose. The thermal conductivity (λ) as a function of temperature was calculated from the thermal diffusivity, the specific heat capacity, and the density. Such thermophysical data are highly relevant and important for thermal simulation studies, thermal management, and the mitigation of thermal runaway.

Polydiphenylamine as a promising high-energy cathode material for dual-ion batteries

2020 ◽  
Author(s):  
Filipp Aleksandrovich Obrezkov ◽  
Alexander F. Shestakov ◽  
Sergey G. Vasil'ev ◽  
Keith Stevenson ◽  
Pavel Troshin
Keyword(s):  
Cathode Material ◽  
Cathode Materials ◽  
Metal Ion ◽  
Electronic Conductivity ◽  
Active Material ◽  
High Energy ◽  
The Poor

A serious drawback of organic cathode materials for metal-ion and dual-ion batteries is the poor electronic conductivity of cathode materials leading to relatively low loading of active material in the...

A Brief Review of Layered Rock Salt Cathode Materials for Lithium Ion Batteries

2013 ◽  
Vol 795 ◽  
pp. 245-250 ◽  
Author(s):  
T.Q. Tan ◽  
S.P. Soo ◽  
A. Rahmat ◽  
J.B. Shamsul ◽  
Rozana A.M. Osman ◽  
...  
Keyword(s):  
Energy Density ◽  
Cathode Material ◽  
Electrochemical Properties ◽  
Lithium Ion Batteries ◽  
Rock Salt ◽  
Cathode Materials ◽  
Lithium Ion ◽  
Type Structure ◽  
Layered Rock ◽  
Cation Disorder

Nowadays, many researchers have been studying on the layered rock salt-type structure as cathode materials for the lithium ion batteries. LiCoO2is the most commonly used cathode material but Co is costly and toxic. Thus, alternative cathode materials which are cheaper, safer and having higher capacity are required. Replacing Co with Ni offered higher energy density battery but it raised interlayer mixing or cation disorder that impedes electrochemical properties of batteries. This paper has reviewed some recent research works that have been done to produce better and safer cathode materials from the structural perspective.

From kröhnkite- to alluaudite-type of structure: novel method of synthesis of sodium manganese sulfates with electrochemical properties in alkali-metal ion batteries

2015 ◽  
Vol 3 (44) ◽  
pp. 22287-22299 ◽  
Author(s):  
D. Marinova ◽  
V. Kostov ◽  
R. Nikolova ◽  
R. Kukeva ◽  
E. Zhecheva ◽  
...  
Keyword(s):  
Alkali Metal ◽  
Electrochemical Properties ◽  
Cathode Materials ◽  
Metal Ion ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Alkali Metal Ion ◽  
Lithium Ion Cells ◽  
Type Phase ◽  
Novel Method

Alluaudite-type Na2+δMn2−δ/2(SO4)3 is obtained by dehydration of the kröhnkite-type phase Na2Mn(SO4)3·2H2O and can deliver a reversible capacity of 135 mA h g−1 as cathode materials in lithium ion cells.

A first-principles investigation of the ScO2 monolayer as the cathode material for alkali metal-ion batteries

2018 ◽  
Vol 6 (7) ◽  
pp. 3171-3180 ◽  
Author(s):  
Zhixiao Liu ◽  
Huiqiu Deng ◽  
Shiguo Zhang ◽  
Wangyu Hu ◽  
Fei Gao
Keyword(s):  
Energy Density ◽  
Alkali Metal ◽  
Cathode Material ◽  
First Principles ◽  
Metal Ion ◽  
Specific Capacity ◽  
High Specific Capacity ◽  
Alkali Metal Ion

The ScO2 monolayer as the cathode material can deliver high specific capacity, voltage and energy density.

Chemomechanical behaviors of layered cathode materials in alkali metal ion batteries

2018 ◽  
Vol 6 (44) ◽  
pp. 21859-21884 ◽  
Author(s):  
Zhengrui Xu ◽  
Muhammad Mominur Rahman ◽  
Linqin Mu ◽  
Yijin Liu ◽  
Feng Lin
Keyword(s):  
Alkali Metal ◽  
Cathode Materials ◽  
Metal Ion ◽  
Recent Progress ◽  
Alkali Metal Ion ◽  
Layered Oxide ◽  
Oxide Cathode ◽  
Layered Cathode Materials

This review summarizes the recent progress in characterizing, understanding, and modifying the chemomechanical properties of layered oxide cathode materials.

K2Fe3(SO4)3(OH)2(H2O)2: A new high-performance hydroxysulfate cathode material for alkali metal ion batteries

2020 ◽  
Vol 452 ◽  
pp. 227835
Author(s):  
Fuxiang Wang ◽  
Shanshan Liu ◽  
Qike Jiang ◽  
Kai Feng ◽  
Xin Yang ◽  
...  
Keyword(s):  
Alkali Metal ◽  
Cathode Material ◽  
Metal Ion ◽  
High Performance ◽  
Alkali Metal Ion
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