Effect of the interfacial protective layer on the NaFe0.5Ni0.5O2 cathode for rechargeable sodium-ion batteries

2020 ◽  
Vol 8 (28) ◽  
pp. 13964-13970 ◽  
Author(s):  
Iqra Moeez ◽  
Dieky Susanto ◽  
Ghulam Ali ◽  
Hun-Gi Jung ◽  
Hee-Dae Lim ◽  
...  
Keyword(s):  
Cathode Materials ◽  
Electrode Materials ◽  
Protective Layer ◽  
Sodium Ion ◽  
Side Reactions ◽  
Sodium Ion Batteries ◽  
Capacity Fading

Ni-based cathode materials have received significant attentions as the advanced electrode materials for NIBs. However, they suffered from the rapid capacity fading due to the side reactions mainly occurring at cathode-electrolyte interphase (CEI).

Research progress on vanadium-based cathode materials for sodium ion batteries

2018 ◽  
Vol 6 (19) ◽  
pp. 8815-8838 ◽  
Author(s):  
Qinghong Wang ◽  
Jiantie Xu ◽  
Wenchao Zhang ◽  
Minglei Mao ◽  
Zengxi Wei ◽  
...  
Keyword(s):  
Cathode Materials ◽  
Electrode Materials ◽  
Morphology Control ◽  
Sodium Ion ◽  
Research Progress ◽  
Synthesis Methods ◽  
Sodium Ion Batteries

In this review, we mainly overview the structures, synthesis methods and the morphology control of vanadium-based electrode materials for sodium ion batteries. In addition, the major issues, emerging challenges and some perspectives on the development of V based electrode materials for sodium ion batteries are also discussed.

scholarly journals Exploring the Charge Compensation Mechanism of P2-Type Na0.6Mg0.3Mn0.7O2 Cathode Materials for Advanced Sodium-Ion Batteries

Energies ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 5729
Author(s):  
Chen Cheng ◽  
Manling Ding ◽  
Tianran Yan ◽  
Kehua Dai ◽  
Jing Mao ◽  
...  
Keyword(s):  
Cathode Materials ◽  
Charge Compensation ◽  
Sodium Ion ◽  
Redox Activity ◽  
Operating Voltage ◽  
Discharge Process ◽  
Sodium Ion Batteries ◽  
Capacity Fading ◽  
Structural Deterioration ◽  
Charge Process

P2-type sodium layered transition metal oxides have been intensively investigated as promising cathode materials for sodium-ion batteries (SIBs) by virtue of their high specific capacity and high operating voltage. However, they suffer from problems of voltage decay, capacity fading, and structural deterioration, which hinder their practical application. Therefore, a mechanistic understanding of the cationic/anionic redox activity and capacity fading is indispensable for the further improvement of electrochemical performance. Here, a prototype cathode material of P2-type Na0.6Mg0.3Mn0.7O2 is comprehensively investigated, which presents both cationic and anionic redox behaviors during the cycling process. By a combination of soft X-ray absorption spectroscopy and electroanalytical methods, we unambiguously reveal that only oxygen redox reaction is involved in the initial charge process, then both oxygen and manganese participate in the charge compensation in the following discharge process. In addition, a gradient distribution of Mn valence state from surface to bulk is disclosed, which could be mainly related to the irreversible oxygen activity during the charge process. Furthermore, we find that the average oxidation state of Mn is reduced upon extended cycles, leading to the noticeable capacity fading. Our results provide deeper insights into the intrinsic cationic/anionic redox mechanism of P2-type materials, which is vital for the rational design and optimization of advanced cathode materials for SIBs.

scholarly journals High‐ionicity fluorophosphate lattice via aliovalent substitution as advanced cathode materials in sodium‐ion batteries

InfoMat ◽  
2021 ◽  
Author(s):  
Zhen‐Yi Gu ◽  
Jin‐Zhi Guo ◽  
Xin‐Xin Zhao ◽  
Xiao‐Tong Wang ◽  
Dan Xie ◽  
...  
Keyword(s):  
Cathode Materials ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Aliovalent Substitution

Revealing the role of dopants in mitigating degradation phenomena in sodium-ion layered cathodes

2021 ◽  
Vol 23 (3) ◽  
pp. 2038-2045
Author(s):  
Kyoungmin Min ◽  
Young-Han Shin
Keyword(s):  
Cathode Materials ◽  
High Performance ◽  
High Stability ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Layered Cathode Materials ◽  
Layered Cathodes

Prevention of the degradation of sodium-based layered cathode materials is the key to developing high-performance and high-stability sodium-ion batteries.

scholarly journals Capacity fading mechanism of tin phosphide anodes in sodium-ion batteries

2018 ◽  
Vol 47 (31) ◽  
pp. 10752-10758 ◽  
Author(s):  
Ronnie Mogensen ◽  
Julia Maibach ◽  
Andrew J. Naylor ◽  
Reza Younesi
Keyword(s):  
Anode Material ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Capacity Fading ◽  
Half Cell ◽  
Full Cell ◽  
Tin Phosphide

Tin phosphide (Sn4P3) is here investigated as an anode material in half-cell, symmetrical, and full-cell sodium-ion batteries.

Nanostructured potassium and sodium ion incorporated Prussian blue frameworks as cathode materials for sodium-ion batteries

2017 ◽  
Vol 53 (40) ◽  
pp. 5569-5572 ◽  
Author(s):  
Yang Liu ◽  
Dandan He ◽  
Ruimin Han ◽  
Gangya Wei ◽  
Yun Qiao
Keyword(s):  
Prussian Blue ◽  
Cathode Materials ◽  
Sodium Ion ◽  
Precipitation Method ◽  
Sodium Ion Batteries ◽  
Co Precipitation

Nanostructured KxNayMnFe(CN)6 (x + y ≤ 2) has been synthesized via a facile co-precipitation method.

Cr-Doped Fe1–xCrxF3·0.33H2O Nanomaterials as Cathode Materials for Sodium-Ion Batteries

2021 ◽  
Author(s):  
Chao Zhang ◽  
Mingxia Yan ◽  
Wenting Li ◽  
Ce Han ◽  
Jie Li ◽  
...  
Keyword(s):  
Cathode Materials ◽  
Sodium Ion ◽  
Sodium Ion Batteries

Scalable synthesis of Na2MVF7 (M = Mn, Fe, and Co) as high-performance cathode materials for sodium-ion batteries

2021 ◽  
Author(s):  
Jiaying Liao ◽  
Jingchen Han ◽  
Jianzhi Xu ◽  
Yichen Du ◽  
Yingying Sun ◽  
...  
Keyword(s):  
Cathode Materials ◽  
High Performance ◽  
Reversible Capacity ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
High Reversible Capacity ◽  
Scalable Synthesis

We demonstrate an economical polytetrafluoroethylene-assisted fluorination method to synthesize three binary sodium-rich fluorides Na2MVF7 (M = Mn, Fe, and Co). The optimal Na2FeVF7 cathode delivers a high reversible capacity of...

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