Simultaneous MgO coating and Mg doping of Na[Ni0.5Mn0.5]O2 cathode: facile and customizable approach to high-voltage sodium-ion batteries

2018 ◽  
Vol 6 (35) ◽  
pp. 16854-16862 ◽  
Author(s):  
Jang-Yeon Hwang ◽  
Tae-Yeon Yu ◽  
Yang-Kook Sun
Keyword(s):  
High Voltage ◽  
Sodium Ion ◽  
Sodium Ion Battery ◽  
Sodium Ion Batteries ◽  
Mg Doping

Simultaneous surface MgO coating to bulk Mg doping of Na[Ni0.5Mn0.5]O2 cathode produces great synergy in sodium-ion battery performances.

scholarly journals Na2Fe(SO4)2: an anhydrous 3.6 V, low-cost and good-safety cathode for a rechargeable sodium-ion battery

2019 ◽  
Vol 7 (21) ◽  
pp. 13197-13204 ◽  
Author(s):  
Wenli Pan ◽  
Wenhao Guan ◽  
Shuangyu Liu ◽  
Ben Bin Xu ◽  
Chu Liang ◽  
...  
Keyword(s):  
Thermal Stability ◽  
High Voltage ◽  
Low Cost ◽  
High Thermal Stability ◽  
Sodium Ion ◽  
Moisture Resistance ◽  
Sodium Ion Battery ◽  
Sodium Ion Batteries ◽  
Earth Abundant

A new high-voltage earth-abundant cathode for sodium-ion batteries, Na2Fe(SO4)2, is reported, combining high thermal stability and good moisture resistance.

scholarly journals A stable cathode-solid electrolyte composite for high-voltage, long-cycle-life solid-state sodium-ion batteries

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Erik A. Wu ◽  
Swastika Banerjee ◽  
Hanmei Tang ◽  
Peter M. Richardson ◽  
Jean-Marie Doux ◽  
...  
Keyword(s):  
Solid State ◽  
High Voltage ◽  
Coulombic Efficiency ◽  
Composite Cathode ◽  
Cycling Performance ◽  
Sodium Ion ◽  
Great Promise ◽  
Sodium Ion Batteries ◽  
Ion Conductor ◽  
Oxide Cathodes

AbstractRechargeable solid-state sodium-ion batteries (SSSBs) hold great promise for safer and more energy-dense energy storage. However, the poor electrochemical stability between current sulfide-based solid electrolytes and high-voltage oxide cathodes has limited their long-term cycling performance and practicality. Here, we report the discovery of the ion conductor Na3-xY1-xZrxCl6 (NYZC) that is both electrochemically stable (up to 3.8 V vs. Na/Na+) and chemically compatible with oxide cathodes. Its high ionic conductivity of 6.6 × 10−5 S cm−1 at ambient temperature, several orders of magnitude higher than oxide coatings, is attributed to abundant Na vacancies and cooperative MCl6 rotation, resulting in an extremely low interfacial impedance. A SSSB comprising a NaCrO2 + NYZC composite cathode, Na3PS4 electrolyte, and Na-Sn anode exhibits an exceptional first-cycle Coulombic efficiency of 97.1% at room temperature and can cycle over 1000 cycles with 89.3% capacity retention at 40 °C. These findings highlight the immense potential of halides for SSSB applications.

Bichannel Design Inspired by Membrane Pump: A Rate Booster for Conversion-type Anode of Sodium Ion Battery

2022 ◽  
Author(s):  
Bo Yin ◽  
Haiyong He ◽  
Jiande Lin ◽  
Youran Hong ◽  
Boshi Cheng ◽  
...  
Keyword(s):  
Cell Membrane ◽  
Rate Capability ◽  
Sodium Ion ◽  
Sodium Ion Battery ◽  
Sodium Ion Batteries ◽  
Membrane Pump ◽  
Na Pump

The sluggish kinetic of Na+ in anode limits the rate capability of sodium ion batteries (SIBs). Herein, pyrophosphate, as a Na+ pump in cell membrane, is integrated with cobalt redox...

Synthesis of High-Performance Hard Carbon from Waste Coffee Ground as Sodium Ion Battery Anode Material: A Review

2021 ◽  
Vol 1044 ◽  
pp. 25-39
Author(s):  
Hafid Khusyaeri ◽  
Dewi Pratiwi ◽  
Haris Ade Kurniawan ◽  
Anisa Raditya Nurohmah ◽  
Cornelius Satria Yudha ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Electrode Material ◽  
High Performance ◽  
Production Costs ◽  
Sodium Ion ◽  
Carbon Anode ◽  
Sodium Ion Battery ◽  
Sodium Ion Batteries ◽  
Hard Carbon ◽  
Coffee Grounds

The battery is a storage medium for electrical energy for electronic devices developed effectively and efficiently. Sodium ion battery provide large-scale energy storage systems attributed to the natural existence of the sodium element on earth. The relatively inexpensive production costs and abundant sodium resources in nature make sodium ion batteries attractive to research. Currently, sodium ion batteries electrochemical performance is still less than lithium-ion batteries. The electrochemical performance of a sodium ion battery depends on the type of electrode material used in the manufacture of the batteries.. The main problem is to find a suitable electrode material with a high specific capacity and is stable. It is a struggle to increase the performance of sodium ion batteries. This literature study studied how to prepare high-performance sodium battery anodes through salt doping. The doping method is chosen to increase conductivity and electron transfer. Besides, this method still takes into account the factors of production costs and safety. The abundant coffee waste biomass in Indonesia was chosen as a precursor to preparing a sodium ion battery hard carbon anode to overcome environmental problems and increase the economic value of coffee grounds waste. Utilization of coffee grounds waste as hard carbon is an innovative solution to the accumulation of biomass waste and supports environmentally friendly renewable energy sources in Indonesia.

Multi-function NiFe2O4 Nanoparticles for Sodium-ion Battery, Sensing and photocatalysis

2021 ◽  
Author(s):  
Patil S. B. ◽  
Shivaraj B. Patil ◽  
Deepa S ◽  
Udayabhanu Udayabhanu ◽  
G. Nagaraju ◽  
...  
Keyword(s):  
Sodium Ion ◽  
Precipitation Method ◽  
Sodium Ion Battery ◽  
Sodium Ion Batteries ◽  
Nife2o4 Nanoparticles ◽  
Co Precipitation

NiFe2O4 nanoparticles (NPs) have attracted great attention in vast fields such as sodium-ion batteries (NaIBs), bio-sensing, and catalysis. In this direction, herein, NiFe2O4 NPs were synthesized by simple co-precipitation method...

scholarly journals Dopant Segregation Boosting High‐Voltage Cyclability of Layered Cathode for Sodium Ion Batteries

2019 ◽  
Vol 31 (46) ◽  
pp. 1904816 ◽  
Author(s):  
Kuan Wang ◽  
Hui Wan ◽  
Pengfei Yan ◽  
Xiao Chen ◽  
Junjie Fu ◽  
...  
Keyword(s):  
High Voltage ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Dopant Segregation

scholarly journals Na2Fe3(SO4)4 as a new high-voltage potential cathode material for sodium-ion batteries

2021 ◽  
Vol 130 (1B) ◽  
pp. 59-67
Author(s):  
Thien Lan Tran ◽  
Huu Duc Luong ◽  
Trong Lam Pham ◽  
Viet Bac Phung ◽  
Van An Dinh
Keyword(s):  
Cathode Material ◽  
High Voltage ◽  
Density Functional ◽  
Diffusion Processes ◽  
Small Polaron ◽  
Diffusion Mechanism ◽  
Sodium Ion ◽  
Structure Stability ◽  
Sodium Ion Batteries ◽  
Significant Difference

Based on the density functional theory, we propose a promising cathode material, Na2Fe3(SO4)4, applicable for sodium-ion batteries. The crystal structure, stability, average voltage, and diffusion mechanism are carefully investigated to evaluate the electrochemical properties. The proposed material exhibits a high voltage of 4.0 V during the Na extraction. A small polaron is proved to be formed preferably at the first nearest Fe sites to Na vacancy and simultaneously accompanies the Na vacancy during its migration. Four elementary diffusion processes of the polaron–Na vacancy complexes, namely two parallel and two crossing processes, have been explored. The significant difference of activation energies between parallel and crossing processes suggests the substantial effect of the small polaron migration on the Na vacancy diffusion. We found that the parallel process along the [001] direction has the lowest activation energy of 808 meV, implying that the Na vacancy preferably diffuses in a zigzag pathway along the [001] direction.

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