Multidimensional Na4VMn0.9Cu0.1(PO4)3/C cotton-candy cathode materials for high energy Na-ion batteries

2020 ◽  
Vol 8 (24) ◽  
pp. 12055-12068
Author(s):  
Vaiyapuri Soundharrajan ◽  
Muhammad H. Alfaruqi ◽  
Seulgi Lee ◽  
Balaji Sambandam ◽  
Sungjin Kim ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Cathode Materials ◽  
High Energy ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Cotton Candy ◽  
Superior Electrochemical Properties

NASICON-structured Na4VMn0.9Cu0.1(PO4)3 cotton candy-like cathode, which was employed for sodium-ion batteries, demonstrates superior electrochemical properties..

Na2.3Cu1.1Mn2O7−δ nanoflakes as enhanced cathode materials for high-energy sodium-ion batteries achieved by a rapid pyrosynthesis approach

2020 ◽  
Vol 8 (2) ◽  
pp. 770-778 ◽  
Author(s):  
Vaiyapuri Soundharrajan ◽  
Balaji Sambandam ◽  
Muhammad H. Alfaruqi ◽  
Sungjin Kim ◽  
Jeonggeun Jo ◽  
...  
Keyword(s):  
Cathode Materials ◽  
Single Phase ◽  
High Energy ◽  
Positive Electrode ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Phase Reaction

Na2.3Cu1.1Mn2O7−δ nanoflakes prepared by an ultrafast pyrosynthesis approach are used as the positive electrode for SIBs. In situ GITT and XRD results support the occurrence of a single-phase reaction in the Na2.3Cu1.1Mn2O7−δ nanoflakes cathode during Na+ (de)intercalation.

scholarly journals Tuning local chemistry of P2 layered-oxide cathode for high energy and long cycles of sodium-ion battery

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Chenchen Wang ◽  
Luojia Liu ◽  
Shuo Zhao ◽  
Yanchen Liu ◽  
Yubo Yang ◽  
...  
Keyword(s):  
Phase Transition ◽  
Transition Metal ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
Cathode Materials ◽  
Specific Capacity ◽  
High Energy ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Two Phase

AbstractLayered transition-metal oxides have attracted intensive interest for cathode materials of sodium-ion batteries. However, they are hindered by the limited capacity and inferior phase transition due to the gliding of transition-metal layers upon Na+ extraction and insertion in the cathode materials. Here, we report that the large-sized K+ is riveted in the prismatic Na+ sites of P2-Na0.612K0.056MnO2 to enable more thermodynamically favorable Na+ vacancies. The Mn-O bonds are reinforced to reduce phase transition during charge and discharge. 0.901 Na+ per formula are reversibly extracted and inserted, in which only the two-phase transition of P2 ↔ P’2 occurs at low voltages. It exhibits the highest specific capacity of 240.5 mAh g−1 and energy density of 654 Wh kg−1 based on the redox of Mn3+/Mn4+, and a capacity retention of 98.2% after 100 cycles. This investigation will shed lights on the tuneable chemical environments of transition-metal oxides for advanced cathode materials and promote the development of sodium-ion batteries.

scholarly journals Toward high energy density cathode materials for sodium-ion batteries: investigating the beneficial effect of aluminum doping on the P2-type structure

2017 ◽  
Vol 5 (9) ◽  
pp. 4467-4477 ◽  
Author(s):  
Ivana Hasa ◽  
Stefano Passerini ◽  
Jusef Hassoun
Keyword(s):  
Energy Density ◽  
Beneficial Effect ◽  
Layered Structure ◽  
Cathode Materials ◽  
High Energy ◽  
Sodium Ion ◽  
High Energy Density ◽  
Sodium Ion Batteries ◽  
Excellent Performance ◽  
Aluminum Doping

Aluminum doping of the P2-type layered structure results in a Na-ion cathode material (Na0.6Ni0.22Al0.11Mn0.66O2) with excellent performance.

Triclinic Off-Stoichiometric Na3.12Mn2.44(P2O7)2/C Cathode Materials for High-Energy/Power Sodium-Ion Batteries

2018 ◽  
Vol 10 (29) ◽  
pp. 24564-24572 ◽  
Author(s):  
Huangxu Li ◽  
Zhian Zhang ◽  
Ming Xu ◽  
Weizhai Bao ◽  
Yanqing Lai ◽  
...  
Keyword(s):  
Cathode Materials ◽  
High Energy ◽  
Sodium Ion ◽  
Sodium Ion Batteries

scholarly journals Off-stoichiometric Na3−3xV2+x(PO4)3/C nanocomposites as cathode materials for high-performance sodium-ion batteries prepared by high-energy ball milling

RSC Advances ◽  
2018 ◽  
Vol 8 (36) ◽  
pp. 20319-20326 ◽  
Author(s):  
Pingping Sun ◽  
Yuanting Wang ◽  
Xiuzhen Wang ◽  
Qingyu Xu ◽  
Qi Fan ◽  
...  
Keyword(s):  
Energy Storage ◽  
Cathode Material ◽  
Ball Milling ◽  
Cathode Materials ◽  
High Performance ◽  
High Energy ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Energy Ball ◽  
Energy Storage Applications

Na3V2(PO4)3 (NVP) is regarded as a promising cathode material for sustainable energy storage applications.

Structural transformation and electrochemical properties of a nanosized flower-like R-MnO2 cathode in sodium battery

2021 ◽  
Author(s):  
kai qiu ◽  
chao zhang ◽  
mingxia yan ◽  
shouwang zhao ◽  
hongwei fan ◽  
...  
Keyword(s):  
Energy Density ◽  
Cathode Material ◽  
Electrochemical Properties ◽  
Structural Transformation ◽  
Energy Demand ◽  
Low Cost ◽  
High Energy ◽  
Sodium Ion ◽  
High Energy Density ◽  
Sodium Ion Batteries

High-energy density and low cost sodium-ion batteries are being sought to meet increasing energy demand. Here, R-MnO2 is chosen as a cathode material of sodium-ion batteries owing to its low...

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