Synthesis of cobalt-doped V2O3 with a hierarchical yolk–shell structure for high-performance lithium-ion batteries

CrystEngComm ◽  
2020 ◽  
Vol 22 (10) ◽  
pp. 1705-1711 ◽  
Author(s):  
Shuai Zhang ◽  
Li Zhang ◽  
Guancheng Xu ◽  
Xiuli Zhang ◽  
Aihua Zhao
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Shell Structure ◽  
High Performance ◽  
Lithium Ion ◽  
The Novel ◽  
Co Doping ◽  
Solvothermal Treatment ◽  
Subsequent Calcination

Co-V2O3-24 yolk–shell nanospheres were synthesized via a solvothermal treatment and subsequent calcination. The electrochemical performance of Co-V2O3-24 is greatly improved because of Co-doping and the novel hierarchical yolk–shell structure.

A novel LiCoPO4-coated core–shell structure for spinel LiNi0.5Mn1.5O4 as a high-performance cathode material for lithium-ion batteries

2017 ◽  
Vol 5 (3) ◽  
pp. 996-1004 ◽  
Author(s):  
Yang Liu ◽  
Zhongpei Lu ◽  
Chenfang Deng ◽  
Jingjing Ding ◽  
Yue Xu ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Shell Structure ◽  
High Performance ◽  
Lithium Ion ◽  
Core Shell ◽  
Core Shell Structure

A novel LiNi0.5Mn1.5O4@LiCoPO4 structure can improve the electrochemical performance by inducing an appropriate amount of Mn3+.

Self-assembly synthesis of nitrogen-doped mesoporous carbons used as high-performance electrode materials in lithium-ion batteries and supercapacitors

2017 ◽  
Vol 41 (21) ◽  
pp. 12901-12909 ◽  
Author(s):  
Chunfeng Shao ◽  
Ziqiang Wang ◽  
Errui Wang ◽  
Shujun Qiu ◽  
Hailiang Chu ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Self Assembly ◽  
High Performance ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Mesoporous Carbons ◽  
Nitrogen Doped ◽  
First Time ◽  
Enhanced Electrochemical Performance

Guanine was, for the first time, used as a nitrogen source during the synthesis of nitrogen-doped porous carbons (NMCs) with enhanced electrochemical performance.

A conductive thin layer on prepared positive electrodes by vapour reaction printing for high-performance lithium-ion batteries

2017 ◽  
Vol 5 (40) ◽  
pp. 21214-21222 ◽  
Author(s):  
Jinhyeok Ahn ◽  
Sukeun Yoon ◽  
Seul Gi Jung ◽  
Jin-Heong Yim ◽  
Kuk Young Cho
Keyword(s):  
Electrochemical Performance ◽  
Thin Layer ◽  
Lithium Ion Batteries ◽  
High Performance ◽  
Lithium Ion ◽  
Positive Electrodes ◽  
Pedot Layer

By covering prepared electrodes with a PEDOT layer via VRP, the electrodes exhibited improved electrochemical performance compared to bare electrodes.

Synthesis and Electrochemical Performance of SnO2/Graphene Hybrid Anode for Lithium Ion Batteries

2013 ◽  
Vol 1540 ◽  
Author(s):  
Chia-Yi Lin ◽  
Chien-Te Hsieh ◽  
Ruey-Shin Juang
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Anode Material ◽  
High Performance ◽  
Coulombic Efficiency ◽  
Rate Capability ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Cycling Performance ◽  
Homogeneous Distribution

ABSTRACTAn efficient microwave-assisted polyol (MP) approach is report to prepare SnO2/graphene hybrid as an anode material for lithium ion batteries. The key factor to this MP method is to start with uniform graphene oxide (GO) suspension, in which a large amount of surface oxygenate groups ensures homogeneous distribution of the SnO2 nanoparticles onto the GO sheets under the microwave irradiation. The period for the microwave heating only takes 10 min. The obtained SnO2/graphene hybrid anode possesses a reversible capacity of 967 mAh g-1 at 0.1 C and a high Coulombic efficiency of 80.5% at the first cycle. The cycling performance and the rate capability of the hybrid anode are enhanced in comparison with that of the bare graphene anode. This improvement of electrochemical performance can be attributed to the formation of a 3-dimensional framework. Accordingly, this study provides an economical MP route for the fabrication of SnO2/graphene hybrid as an anode material for high-performance Li-ion batteries.

Mesoporous Fe3O4@C submicrospheres evolved by a novel self-corrosion mechanism for high-performance lithium-ion batteries

2014 ◽  
Vol 38 (6) ◽  
pp. 2428-2434 ◽  
Author(s):  
Yongping Gan ◽  
Huaqing Gu ◽  
Han Xiao ◽  
Yang Xia ◽  
Xinyong Tao ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Structural Stability ◽  
High Performance ◽  
Lithium Ion ◽  
High Conductivity ◽  
Corrosion Mechanism

Mesoporous Fe3O4@C submicrospheres with high conductivity and structural stability exhibit fascinating electrochemical performance.

scholarly journals A novel all-fiber-based LiFePO4/Li4Ti5O12 battery with self-standing nanofiber membrane electrodes

2019 ◽  
Vol 10 ◽  
pp. 2229-2237
Author(s):  
Li-li Chen ◽  
Hua Yang ◽  
Mao-xiang Jing ◽  
Chong Han ◽  
Fei Chen ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
High Performance ◽  
Coulombic Efficiency ◽  
Lithium Ion ◽  
Cycle Performance ◽  
Membrane Electrodes ◽  
Fiber Membrane ◽  
Retention Capacity ◽  
3D Network

Electrodes with high conductivity and flexibility are crucial to the development of flexible lithium-ion batteries. In this study, three-dimensional (3D) LiFePO4 and Li4Ti5O12 fiber membrane materials were prepared through electrospinning and directly used as self-standing electrodes for lithium-ion batteries. The structure and morphology of the fibers, and the electrochemical performance of the electrodes and the full battery were characterized. The results show that the LiFePO4 and Li4Ti5O12 fiber membrane electrodes exhibit good rate and cycle performance. In particular, the all-fiber-based gel-state battery composed of LiFePO4 and Li4Ti5O12 fiber membrane electrodes can be charged/discharged for 800 cycles at 1C with a retention capacity of more than 100 mAh·g−1 and a coulombic efficiency close to 100%. The good electrochemical performance is attributed to the high electronic and ionic conductivity provided by the 3D network structure of the self-standing electrodes. This design and preparation method for all-fiber-based lithium-ion batteries provides a novel strategy for the development of high-performance flexible batteries.

Facile preparation of MoS2/maleic acid composite as high-performance anode for lithium ion batteries

2020 ◽  
Vol 44 (37) ◽  
pp. 15887-15894
Author(s):  
Jingshi Wang ◽  
Zhigang Shen ◽  
Min Yi
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
High Performance ◽  
Lithium Ion ◽  
Composite Anode ◽  
Step Method ◽  
Practical Applications ◽  
Excellent Electrochemical Performance ◽  
One Step ◽  
Facile Preparation

We propose a facile one-step method to prepare a MoS2 composite anode with excellent electrochemical performance and potential for practical applications in lithium ion batteries.

scholarly journals Enhanced Roles of Carbon Architectures in High-Performance Lithium-Ion Batteries

2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Lu Wang ◽  
Junwei Han ◽  
Debin Kong ◽  
Ying Tao ◽  
Quan-Hong Yang
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
High Performance ◽  
High Capacity ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
High Mass

Abstract Lithium-ion batteries (LIBs), which are high-energy-density and low-safety-risk secondary batteries, are underpinned to the rise in electrochemical energy storage devices that satisfy the urgent demands of the global energy storage market. With the aim of achieving high energy density and fast-charging performance, the exploitation of simple and low-cost approaches for the production of high capacity, high density, high mass loading, and kinetically ion-accessible electrodes that maximize charge storage and transport in LIBs, is a critical need. Toward the construction of high-performance electrodes, carbons are promisingly used in the enhanced roles of active materials, electrochemical reaction frameworks for high-capacity noncarbons, and lightweight current collectors. Here, we review recent advances in the carbon engineering of electrodes for excellent electrochemical performance and structural stability, which is enabled by assembled carbon architectures that guarantee sufficient charge delivery and volume fluctuation buffering inside the electrode during cycling. Some specific feasible assembly methods, synergism between structural design components of carbon assemblies, and electrochemical performance enhancement are highlighted. The precise design of carbon cages by the assembly of graphene units is potentially useful for the controlled preparation of high-capacity carbon-caged noncarbon anodes with volumetric capacities over 2100 mAh cm−3. Finally, insights are given on the prospects and challenges for designing carbon architectures for practical LIBs that simultaneously provide high energy densities (both gravimetric and volumetric) and high rate performance.

scholarly journals Dual yolk-shell structure of carbon and silica-coated silicon for high-performance lithium-ion batteries

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
L. Y. Yang ◽  
H. Z. Li ◽  
J. Liu ◽  
Z. Q. Sun ◽  
S. S. Tang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Shell Structure ◽  
High Performance ◽  
Lithium Ion
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