Carbon coated 3D Nb2O5 hollow nanospheres with superior performance as an anode for high energy Li-ion capacitors

2020 ◽  
Vol 4 (9) ◽  
pp. 4868-4877 ◽  
Author(s):  
Haoran Li ◽  
Dong Li ◽  
Jing Shi ◽  
Zeyin He ◽  
Zongchen Zhao ◽  
...  
Keyword(s):  
Ion Transport ◽  
Volume Expansion ◽  
Hollow Structure ◽  
Lithium Ion ◽  
High Energy ◽  
Carbon Layer ◽  
Superior Performance ◽  
Hollow Nanospheres ◽  
Carbon Coated ◽  
Li Ion

Carbon coated porous hollow Nb2O5 nanospheres are designed for lithium-ion capacitors. The carbon layer limits the agglomeration of Nb2O5 and improves the conductivity. The hollow structure accommodates volume expansion and facilitates ion transport.

scholarly journals High performance carbon-coated hollow Ni12P5 nanocrystals decorated on GNS as advanced anodes for lithium and sodium storage

2017 ◽  
Vol 5 (42) ◽  
pp. 22316-22324 ◽  
Author(s):  
Huinan Guo ◽  
Chengcheng Chen ◽  
Kai Chen ◽  
Haichao Cai ◽  
Xiaoya Chang ◽  
...  
Keyword(s):  
Ion Transport ◽  
Volume Expansion ◽  
High Performance ◽  
Hollow Structure ◽  
Carbon Coated ◽  
Sodium Storage

The hollow structure of Ni12P5@C/GNS shortens ion transport paths and provides ample room to accommodate volume expansion, indicating its overwhelming superiority in applications.

Yolk–shell-structured microspheres composed of N-doped-carbon-coated NiMoO4 hollow nanospheres as superior performance anode materials for lithium-ion batteries

Nanoscale ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 631-638 ◽  
Author(s):  
Gi Dae Park ◽  
Jeong Hoo Hong ◽  
Jung-Kul Lee ◽  
Yun Chan Kang
Keyword(s):  
Transition Metal ◽  
Metal Oxide ◽  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Lithium Ion ◽  
Transition Metal Oxide ◽  
Superior Performance ◽  
Hollow Nanospheres ◽  
Carbon Coated ◽  
First Time

Herein, for the first time, yolk–shell-structured microspheres consisting of N-doped-carbon-coated binary transition-metal oxide hollow nanospheres are designed as anode materials for lithium-ion batteries.

Silicon nanoparticle-sandwiched ultrathin MoS2–graphene layers as an anode material for Li-ion batteries

2019 ◽  
Vol 3 (4) ◽  
pp. 587-596 ◽  
Author(s):  
Ujjwala V. Kawade ◽  
Anuradha A. Ambalkar ◽  
Rajendra P. Panmand ◽  
Ramchandra S. Kalubarme ◽  
Sunil R. Kadam ◽  
...  
Keyword(s):  
Ion Transport ◽  
Anode Material ◽  
Volume Expansion ◽  
Lithium Ion ◽  
Li Ion Batteries ◽  
Silicon Nanoparticle ◽  
Graphene Layers ◽  
Si Nanoparticles ◽  
Li Ion

This Si@MoS2–G nanostructure engineering and hybridization approach confers shielding in volume expansion because the Si nanoparticles are sandwiched in layers, which allows adequate space between the MoS2–G layers for easy lithium ion transport.

scholarly journals Two-dimensional SnO2 anchored biomass-derived carbon nanosheet anode for high-performance Li-ion capacitors

RSC Advances ◽  
2021 ◽  
Vol 11 (17) ◽  
pp. 10018-10026
Author(s):  
Chang Liu ◽  
Zeyin He ◽  
Jianmin Niu ◽  
Qiang Cheng ◽  
Zongchen Zhao ◽  
...  
Keyword(s):  
High Performance ◽  
Lithium Ion ◽  
High Energy ◽  
Good Combination ◽  
Two Dimensional ◽  
Power Characteristics ◽  
Coffee Grounds ◽  
Lithium Ion Capacitor ◽  
Li Ion

In this work, we have fabricated lithium-ion capacitor using SnO2/PCN as anode and waste coffee grounds derived PCN as cathode, which delivers good combination of high energy and power characteristics.

Carbon-coated porous silicon composites as high performance Li-ion battery anode materials: can the production process be cheaper and greener?

2016 ◽  
Vol 4 (2) ◽  
pp. 552-560 ◽  
Author(s):  
Wenfeng Ren ◽  
Yanhong Wang ◽  
Zailei Zhang ◽  
Qiangqiang Tan ◽  
Ziyi Zhong ◽  
...  
Keyword(s):  
Porous Silicon ◽  
Anode Materials ◽  
High Performance ◽  
Lithium Ion ◽  
Solvothermal Reaction ◽  
Carbon Composites ◽  
Silicon Carbon ◽  
Excellent Electrochemical Performance ◽  
Carbon Coated ◽  
Li Ion

Porous silicon/carbon composites prepared by the solvothermal reaction show excellent electrochemical performance as anode materials for lithium ion batteries.

Probing the Effect of High Energy Ball Milling on the Structure and Properties of LiNi1/3Mn1/3Co1/3O2 Cathodes for Li-Ion Batteries

2016 ◽  
Vol 13 (3) ◽  
Author(s):  
Malcolm Stein ◽  
Chien-Fan Chen ◽  
Matthew Mullings ◽  
David Jaime ◽  
Audrey Zaleski ◽  
...  
Keyword(s):  
Particle Size ◽  
Electrochemical Performance ◽  
Crystallite Size ◽  
Ball Milling ◽  
Lithium Ion ◽  
High Energy ◽  
Li Ion Batteries ◽  
Structure And Properties ◽  
Transfer Resistance ◽  
Li Ion

Particle size plays an important role in the electrochemical performance of cathodes for lithium-ion (Li-ion) batteries. High energy planetary ball milling of LiNi1/3Mn1/3Co1/3O2 (NMC) cathode materials was investigated as a route to reduce the particle size and improve the electrochemical performance. The effect of ball milling times, milling speeds, and composition on the structure and properties of NMC cathodes was determined. X-ray diffraction analysis showed that ball milling decreased primary particle (crystallite) size by up to 29%, and the crystallite size was correlated with the milling time and milling speed. Using relatively mild milling conditions that provided an intermediate crystallite size, cathodes with higher capacities, improved rate capabilities, and improved capacity retention were obtained within 14 μm-thick electrode configurations. High milling speeds and long milling times not only resulted in smaller crystallite sizes but also lowered electrochemical performance. Beyond reduction in crystallite size, ball milling was found to increase the interfacial charge transfer resistance, lower the electrical conductivity, and produce aggregates that influenced performance. Computations support that electrolyte diffusivity within the cathode and film thickness play a significant role in the electrode performance. This study shows that cathodes with improved performance are obtained through use of mild ball milling conditions and appropriately designed electrodes that optimize the multiple transport phenomena involved in electrochemical charge storage materials.

scholarly journals Rational synthesis of silicon into polyimide-derived hollow electrospun carbon nanofibers for enhanced lithium storage

e-Polymers ◽  
2020 ◽  
Vol 20 (1) ◽  
pp. 491-499 ◽  
Author(s):  
Fan Wang ◽  
Shouzhi Zhang ◽  
Jiawei Zhang ◽  
Manshu Han ◽  
Guoxiang Pan ◽  
...  
Keyword(s):  
Shell Structure ◽  
Carbon Nanofiber ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Superior Performance ◽  
Core Shell ◽  
Discharge Process ◽  
Energy Devices ◽  
Core Shell Structure

AbstractFlexible energy devices with high energy density and long cycle life are considered to be promising applications in portable electronics. In this study, silicon/carbon nanofiber (Si@CNF) core–shell electrode has been prepared by the coaxial electrospinning method. The precursors of polyimide (PI) were for the first time used to form the core–shell structure of Si@CNF, which depicts outstanding flexibility and mechanical strength. The effect of doping concentrations of silicon (Si) nanoparticles embedded in the fiber is investigated as a binder-free anode for lithium-ion batteries. A 15 wt% doped composite electrode demonstrates superior performance, with an initial reversible capacity of 621 mA h g−1 at the current density of 100 mA g−1 and a high capacity retention up to 200 cycles. The excellent cycling performance is mainly due to the carbonized PI core–shell structure, which not only can compensate for the insulation property of Si but also has the ability to buffer the volume expansion during the repeated charge–discharge process.

Ni-rich LiNi0·8Co0·1Mn0·1O2 coated with Li-ion conductive Li3PO4 as competitive cathodes for high-energy-density lithium ion batteries

2020 ◽  
Vol 340 ◽  
pp. 135871 ◽  
Author(s):  
Wenheng Zhang ◽  
Longwei Liang ◽  
Fei Zhao ◽  
Yang Liu ◽  
Linrui Hou ◽  
...  
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Li Ion
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