PVP-assisted synthesis of ultrafine transition metal oxides encapsulated in nitrogen-doped carbon nanofibers as robust and flexible anodes for sodium-ion batteries

Carbon ◽  
2021 ◽  
Vol 174 ◽  
pp. 325-334
Author(s):  
Qingshan Zhao ◽  
Zhengzheng Xia ◽  
Tong Qian ◽  
Xianchao Rong ◽  
Mei Zhang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Oxides ◽  
Carbon Nanofibers ◽  
Transition Metal Oxides ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon

A graphene/nitrogen-doped carbon nanofiber composite as an anode material for sodium-ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (127) ◽  
pp. 104822-104828 ◽  
Author(s):  
Juan Zhang ◽  
Zhian Zhang ◽  
Xingxing Zhao
Keyword(s):  
Anode Material ◽  
Carbon Nanofibers ◽  
Porous Carbon ◽  
Carbon Nanofiber ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Nanofiber Composite ◽  
Nitrogen Doped ◽  
Porous Carbon Nanofiber ◽  
Nitrogen Doped Carbon

A graphene/N-doped porous carbon nanofiber (RGO/NPC) composite was designed as an anode material for sodium-ion batteries (SIBs). A microstructure of fine and uniform N-doped porous carbon nanofibers decorated on 2D RGO sheets was obtained.

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.

Sn nanoparticles@nitrogen-doped carbon nanofiber composites as high-performance anodes for sodium-ion batteries

2017 ◽  
Vol 5 (13) ◽  
pp. 6277-6283 ◽  
Author(s):  
Mo Sha ◽  
Hui Zhang ◽  
Yuting Nie ◽  
Kaiqi Nie ◽  
Xiaoxin Lv ◽  
...  
Keyword(s):  
Carbon Nanofibers ◽  
High Performance ◽  
Carbon Nanofiber ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Nitrogen Doped ◽  
Electrostatic Spinning ◽  
Nitrogen Doped Carbon

Sn nanoparticles on nitrogen doped carbon nanofibers (Sn@NCNFs) composites have been synthesized by electrostatic spinning technique and used as the anode of sodium-ion batteries (SIBs) with the capacity of 390 mA h g−1 at 1 C for over 1000 cycles.

Sodium transition metal oxides: the preferred cathode choice for future sodium-ion batteries?

2021 ◽  
Author(s):  
Qiannan Liu ◽  
Zhe Hu ◽  
Weijie Li ◽  
Chao Zou ◽  
Huile Jin ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Oxide ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
High Capacity ◽  
Transition Metal Oxide ◽  
Sodium Ion ◽  
Redox Activity ◽  
Sodium Ion Batteries ◽  
Oxide Cathodes

This work provides guidance on controlling anionic redox activity and finding novel high-capacity transition metal oxide cathodes for sodium-ion batteries.

Nitrogen-doped carbon nanofibers derived from polyacrylonitrile for use as anode material in sodium-ion batteries

Carbon ◽  
2015 ◽  
Vol 94 ◽  
pp. 189-195 ◽  
Author(s):  
Jiadeng Zhu ◽  
Chen Chen ◽  
Yao Lu ◽  
Yeqian Ge ◽  
Han Jiang ◽  
...  
Keyword(s):  
Anode Material ◽  
Carbon Nanofibers ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon
Sign in / Sign up

Export Citation Format

Share Document