Graphene-wrapped mesoporous MnCO3 single crystals synthesized by a dynamic floating electrodeposition method for high performance lithium-ion storage

2015 ◽  
Vol 3 (27) ◽  
pp. 14126-14133 ◽  
Author(s):  
Mingwen Gao ◽  
Xinwei Cui ◽  
Renfei Wang ◽  
Tianfei Wang ◽  
Weixing Chen
Keyword(s):  
Single Crystals ◽  
High Performance ◽  
High Capacity ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Electrodeposition Method ◽  
Ion Storage

Graphene-wrapped MnCO3 MSCs, synthesized through dynamic floating electrodeposition, demonstrate high capacity (1087 mA h g−1) and excellent cycling performance (>400 cycles).

Iron vacancies engineering of FexC@NC hybrids toward enhanced lithium-ion storage properties

2021 ◽  
Author(s):  
Shenghong Liu ◽  
Wenrui Zheng ◽  
Mingyue Huang ◽  
Yaning Xu ◽  
Wenhe Xie ◽  
...  
Keyword(s):  
Active Sites ◽  
High Performance ◽  
Specific Capacity ◽  
Iron Carbide ◽  
High Capacity ◽  
Lithium Ion ◽  
Hierarchical Pores ◽  
Ion Storage ◽  
Energy Storage Properties ◽  
Storage Properties

Abstract Defect engineering have profound influence on the energy storage properties of electrode hybrids by adjusting their intrinsic electronic characteristics. For iron carbide based materials, however, the effect of defect (especially cation vacancies) toward their electrochemical performance are still unclear. Herein, the feasible and scalable synthesis of FexC@NC with 3D honeycomb-like carbon architecture and abundant Fe vacancies via template etching is reported. Such structure enable outstanding lithium-ion storage properties owing to hierarchical pores, improved intrinsic electrochemical activity, as well as the introduction of more active sites. As a result, the FexC@NC-2 presents a high reversible specific capacity of 1079 mAh g−1 after 1000 cycles. Moreover, an excellent cycling stability can be achieved via maintaining a high-capacity retention (689 mAh g−1, 98.4%) over 1000 cycles at 5 A g−1. This study provides a feasible strategy for developing high-performance hybrids with hierarchical pore and rich defects structures.

Synthesis of a 2D nitrogen-rich π-conjugated microporous polymer for high performance lithium-ion batteries

2019 ◽  
Vol 55 (64) ◽  
pp. 9491-9494 ◽  
Author(s):  
Lingkun Meng ◽  
Siyuan Ren ◽  
Chenhui Ma ◽  
Ying Yu ◽  
Yue Lou ◽  
...  
Keyword(s):  
High Performance ◽  
High Current Density ◽  
High Capacity ◽  
Lithium Ion ◽  
Cycle Performance ◽  
Heated Sample ◽  
Conjugated Microporous Polymer ◽  
Microporous Polymer ◽  
Ion Storage ◽  
First Time

Here we synthesized a 2D π-conjugated microporous polymer NGA-CMP. Heated sample NGA-CMP400 is used for the first time as an anode for LIBs and shows high capacity lithium-ion storage with excellent cycle performance at high current density.

High Performance Tin-coated Vertically Aligned Carbon Nanofiber Array Anode for Lithium-ion Batteries

MRS Advances ◽  
2018 ◽  
Vol 3 (60) ◽  
pp. 3519-3524
Author(s):  
Gaind P. Pandey ◽  
Kobi Jones ◽  
Emery Brown ◽  
Jun Li ◽  
Lamartine Meda
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Carbon Nanofiber ◽  
Specific Capacity ◽  
High Capacity ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Cycling Performance ◽  
Vertically Aligned ◽  
Vertically Aligned Carbon Nanofiber

ABSTRACTThis study reports a high-performance tin (Sn)-coated vertically aligned carbon nanofiber array anode for lithium-ion batteries. The array electrodes have been prepared by coaxial sputter-coating of tin (Sn) shells on vertically aligned carbon nanofiber (VACNF) cores. The robust brush-like highly conductive VACNFs effectively connect high-capacity Sn shells for lithium-ion storage. A high specific capacity of 815 mAh g-1 of Sn was obtained at C/20 rate, reaching toward the maximum value of Sn. However, the electrode shows poor cycling performance with conventional LiPF6 based organic electrolyte. The addition of fluoroethylene carbonate (FEC) improve the performance significantly and the Sn-coated VACNFs anode shows stable cycling performance. The Sn-coated VACNF array anodes exhibit outstanding capacity retention in the half-cell tests with electrolyte containing 10 wt.% FEC and could deliver a reversible capacity of 480 mAh g-1 after 50 cycles at C/3 rate.

High Performance Lithium-ion Battery Electrode: Silicon Coated on Vertically Aligned Carbon Nanofibers

2013 ◽  
Vol 1541 ◽  
Author(s):  
Steven Klankowski ◽  
Ronald Rojeski ◽  
Jun Li
Keyword(s):  
High Performance ◽  
Carbon Nanofiber ◽  
Specific Capacity ◽  
High Capacity ◽  
Lithium Ion ◽  
Hybrid Architecture ◽  
High Specific Capacity ◽  
Ion Storage ◽  
Battery Electrode ◽  
Vertically Aligned

ABSTRACTThis study reports a high-performance hybrid lithium-ion anode material using coaxially coated silicon shells on vertically aligned carbon nanofiber (VACNF) cores. The robust bush-like highly conductive VACNFs effectively connect high-capacity silicon shells for lithium-ion storage. Such architecture allows the Si shells to freely expand/contract in the radial direction during lithium-ion insertion/extraction. A high specific capacity of 3000-3650 mAh(gSi)-1 was obtained at C/1 rate, comparable to the maximum value of amorphous Si, and ∼89% of the capacity was retained after 100 charge-discharge cycles. The lithium-ion storage capacity remains nearly the same from C/10 to C/0.5 rates. The ability to obtain high capacity at significantly improved power rates while maintaining the extraordinary cycle stability demonstrates the utilization of the unique properties of such hybrid architecture for lithium-ion batteries.

Preparation of TiNb6O17 nanospheres as high-performance anode candidates for lithium-ion storage

2019 ◽  
Vol 374 ◽  
pp. 937-946 ◽  
Author(s):  
Yu Yuan ◽  
Haoxiang Yu ◽  
Xing Cheng ◽  
Runtian Zheng ◽  
Tingting Liu ◽  
...  
Keyword(s):  
High Performance ◽  
Lithium Ion ◽  
Ion Storage

Carbon-free Cu/SbxOy/Sb nanocomposites with yolk-shell and hollow structures as high-performance anodes for lithium-ion storage

2021 ◽  
pp. 160447
Author(s):  
Quoc Hai Nguyen ◽  
Viet Duc Phung ◽  
Weldejewergis Gebrewahid Kidanu ◽  
Yong Nam Ahn ◽  
Tuan Loi Nguyen ◽  
...  
Keyword(s):  
High Performance ◽  
Lithium Ion ◽  
Hollow Structures ◽  
Ion Storage

scholarly journals A germanium and zinc chalcogenide as an anode for a high-capacity and long cycle life lithium battery

RSC Advances ◽  
2019 ◽  
Vol 9 (60) ◽  
pp. 35045-35049
Author(s):  
Xu Chen ◽  
Jian Zhou ◽  
Jiarui Li ◽  
Haiyan Luo ◽  
Lin Mei ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Performance ◽  
Lithium Battery ◽  
Large Scale ◽  
High Capacity ◽  
Lithium Ion ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Long Cycle Life ◽  
Zinc Chalcogenide

High-performance lithium ion batteries are ideal energy storage devices for both grid-scale and large-scale applications.

Template-free Synthesis of Yolk-Shell Co3O4/Nitrogen-Doped Carbon Microstructure for Excellent Lithium Ion Storage

2021 ◽  
Author(s):  
Ming-Jun Xiao ◽  
Hong Zhang ◽  
Bo Ma ◽  
Ze-Qi Zhang ◽  
Xiangyang Li ◽  
...  
Keyword(s):  
Lithium Batteries ◽  
Anode Materials ◽  
High Performance ◽  
Lithium Ion ◽  
Nanoscale Structures ◽  
Nitrogen Doped ◽  
Lithium Transport ◽  
Ion Storage ◽  
Template Free ◽  
Nitrogen Doped Carbon

Developing novel composite materials with delicate micro or nanoscale structures that enable fast lithium transport are crucial for the high performance anode materials of lithium batteries. Herein, we developed a...

Building sponge-like robust architectures of CNT–graphene–Si composites with enhanced rate and cycling performance for lithium-ion batteries

2015 ◽  
Vol 3 (7) ◽  
pp. 3962-3967 ◽  
Author(s):  
Xiaolei Wang ◽  
Ge Li ◽  
Fathy M. Hassan ◽  
Matthew Li ◽  
Kun Feng ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
High Performance ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Cycling Stability ◽  
Great Promise ◽  
Practical Applications ◽  
Excellent Cycling Stability

High-performance robust CNT–graphene–Si composites are designed as anode materials with enhanced rate capability and excellent cycling stability for lithium-ion batteries. Such an improvement is mainly attributed to the robust sponge-like architecture, which holds great promise in future practical applications.

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