Rational design of FeTiO3/C hybrid nanotubes: promising lithium ion anode with enhanced capacity and cycling performance

2020 ◽  
Vol 56 (83) ◽  
pp. 12640-12643
Author(s):  
Yakun Tang ◽  
Wenjie Ma ◽  
Yue Zhang ◽  
Yang Gao ◽  
Xingyan Zeng ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Rational Design ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Electrochemical Performances

Porous FeTiO3/C hybrid nanotubes are synthesized by a facile method, and possess excellent electrochemical performances as anodes for lithium ion batteries.

Rational design of 3D N-doped carbon nanosheet framework encapsulated ultrafine ZnO nanocrystals as superior performance anode materials in lithium ion batteries

2019 ◽  
Vol 7 (43) ◽  
pp. 25155-25164 ◽  
Author(s):  
Jianding Li ◽  
Huajun Zhao ◽  
Meimei Wang ◽  
Yongyang Zhu ◽  
Bo Li ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Rational Design ◽  
Structural Integrity ◽  
Lithium Ion ◽  
Superior Performance ◽  
Electrochemical Performances ◽  
Half Cell ◽  
Full Cell ◽  
Zno Nanocrystals

A ZnO encapsulated in a 3D NCNF composite exhibits excellent electrochemical performances both in a half cell and full cell. The improved performances are mainly explained based on the two aspects of structural integrity and kinetics enhancement.

Nano-MgO Templated Mesoporous Carbon as Anode Material for Li-Ion Batteries

2012 ◽  
Vol 581-582 ◽  
pp. 561-564
Author(s):  
Lu Shi ◽  
Chao Lin Miao ◽  
Bin Xu ◽  
Shi Chen
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
Carbon Material ◽  
Mesoporous Carbon ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Bet Surface Area ◽  
Carbon Anode ◽  
Electrochemical Performances ◽  
Mesoporous Carbon Material

The mesoporous carbon material is prepared by using phenolic resin and MgO nanoparticles as precursor and template, respecitively. The microstructure of the carbon is characterized by N2 adsorption/desorption, Hg porosimetry and field-emission scanning electron microscopy(SEM). The electrochemical performances of the carbon as anode material for lithium ion batteries are evaluated by galvanostatic charge/discharge and cyclic voltammetry tests. It is shown that the BET surface area of the mesoporous carbon material can reach 1024 m2/g. Its pore size distributes between 20 and 50nm. The mesoporous carbon possesses high first discharge capacity and good cycling performance. It is believed that it is an effective method to use nano-MgO particle as template to prepare mesoporous carbon anode materials for lithium ion batteries.

Facile synthesis of hierarchical MoS2–carbon microspheres as a robust anode for lithium ion batteries

2016 ◽  
Vol 4 (24) ◽  
pp. 9653-9660 ◽  
Author(s):  
Gen Chen ◽  
Shengping Wang ◽  
Ran Yi ◽  
Longfei Tan ◽  
Hongbo Li ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Current Density ◽  
High Capacity ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Electrochemical Performances ◽  
Carbon Microspheres ◽  
Facile Synthesis ◽  
Large Current ◽  
Large Current Density

MoS2–C microspheres have been demonstrated with excellent electrochemical performances in terms of low resistance, high capacity even at large current density, and stable cycling performance.

scholarly journals A Cellulose-Derived Nanofibrous MnO2-TiO2-Carbon Composite as Anodic Material for Lithium-Ion Batteries

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3411
Author(s):  
Shun Li ◽  
Ming Yang ◽  
Guijin He ◽  
Dongmei Qi ◽  
Jianguo Huang
Keyword(s):  
Lithium Ion Batteries ◽  
Carbon Nanofibers ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Carbon Composite ◽  
Electrochemical Performances ◽  
Mno2 Nanosheets ◽  
Specific Discharge ◽  
Extraction Processes

A bio-inspired nanofibrous MnO2-TiO2-carbon composite was prepared by utilizing natural cellulosic substances (e.g., ordinary quantitative ashless filter paper) as both the carbon source and structural matrix. Mesoporous MnO2 nanosheets were densely immobilized on an ultrathin titania film precoated with cellulose-derived carbon nanofibers, which gave a hierarchical MnO2-TiO2-carbon nanoarchitecture and exhibited excellent electrochemical performances when used as an anodic material for lithium-ion batteries. The MnO2-TiO2-carbon composite with a MnO2 content of 47.28 wt % exhibited a specific discharge capacity of 677 mAh g−1 after 130 repeated charge/discharge cycles at a current rate of 100 mA g−1. The contribution percentage of MnO2 in the composite material is equivalent to 95.1% of the theoretical capacity of MnO2 (1230 mAh g−1). The ultrathin TiO2 precoating layer with a thickness ca. 2 nm acts as a crucial interlayer that facilitates the growth of well-organized MnO2 nanosheets onto the surface of the titania-carbon nanofibers. Due to the interweaved network structures of the carbon nanofibers and the increased content of the immobilized MnO2, the exfoliation and aggregation, as well as the large volume change of the MnO2 nanosheets, are significantly inhibited; thus, the MnO2-TiO2-carbon electrodes displayed outstanding cycling performance and a reversible rate capability during the Li+ insertion/extraction processes.

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