scholarly journals Synthesis and Electrochemical Performance of Mesoporous MnC2O4 Nanorod/rGO Composite Anode for Lithium-ion Batteries

2021 ◽  
Author(s):  
Ya-Nan Zhang ◽  
Li-Ying Xue ◽  
Yong Zhang ◽  
Jing Su ◽  
Yun-Fei Long Long ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Low Cost ◽  
High Capacity ◽  
Reduction Process ◽  
Lithium Ion ◽  
High Energy ◽  
Volume Effect ◽  
Discharge Process

Abstract MnC2O4 is a promising anode material for high-energy lithium-ion batteries due to its low cost and high capacity. However, its application is limited by the poor cyclic-stability and rate performance caused by its low conductivity. Herein, mesoporous MnC2O4 nanorod/rGO composite is prepared via precipitation followed by a reflux reduction process, where MnC2O4 nanorods are attached to the surface of graphene through electrostatic adsorption. This composite delivers a discharge capacity of 1082, 964, and 808 mAh·g-1 after 200 cycles at 3, 5, and 8 C, respectively. The good electrochemical performance can be attributed to the synergistic effect between mesoporous nanorods and rGO. This synergistic effect not only offers high conductivity, nanoparticles, and abundant mesopores to accelerate electrode kinetics but also provides a more stable structure to reduce the volume effect during the charge/discharge process. Therefore, mesoporous MnC2O4 nanorod/rGO composite can find a potential application in high-energy lithium-ion batteries.

scholarly journals Improvement of long-term cycling performance of high-nickel cathode materials by ZnO coating

2021 ◽  
Vol 10 (1) ◽  
pp. 210-220
Author(s):  
Fangfang Wang ◽  
Ruoyu Hong ◽  
Xuesong Lu ◽  
Huiyong Liu ◽  
Yuan Zhu ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Solid Phase ◽  
Low Cost ◽  
Specific Capacity ◽  
High Capacity ◽  
Lithium Ion ◽  
Side Reaction ◽  
Chemical Route ◽  
High Nickel

Abstract The high-nickel cathode material of LiNi0.8Co0.15Al0.05O2 (LNCA) has a prospective application for lithium-ion batteries due to the high capacity and low cost. However, the side reaction between the electrolyte and the electrode seriously affects the cycling stability of lithium-ion batteries. In this work, Ni2+ preoxidation and the optimization of calcination temperature were carried out to reduce the cation mixing of LNCA, and solid-phase Al-doping improved the uniformity of element distribution and the orderliness of the layered structure. In addition, the surface of LNCA was homogeneously modified with ZnO coating by a facile wet-chemical route. Compared to the pristine LNCA, the optimized ZnO-coated LNCA showed excellent electrochemical performance with the first discharge-specific capacity of 187.5 mA h g−1, and the capacity retention of 91.3% at 0.2C after 100 cycles. The experiment demonstrated that the improved electrochemical performance of ZnO-coated LNCA is assigned to the surface coating of ZnO which protects LNCA from being corroded by the electrolyte during cycling.

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.

A nickel and cobalt bimetal organic framework with high capacity as an anode material for lithium-ion batteries

2020 ◽  
Vol 4 (11) ◽  
pp. 5757-5764
Author(s):  
Wen Zheng ◽  
Wanying Bi ◽  
Xuenong Gao ◽  
Zhengguo Zhang ◽  
Wenhui Yuan ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Anode Material ◽  
High Capacity ◽  
Lithium Ion ◽  
Excellent Electrochemical Performance ◽  
Organic Framework

The Ni–Co-BTC anode shows excellent electrochemical performance, which could be ascribed to the intercalation/deintercalation mechanism and the synergistic effect of two cations.

Improved electrochemical performance of anode materials for high energy density lithium-ion batteries through Sn(SnO2)–SiO2/graphene-based nanocomposites prepared by a facile and low-cost approach

2020 ◽  
Vol 4 (9) ◽  
pp. 4625-4636
Author(s):  
Orapim Namsar ◽  
Thanaphat Autthawong ◽  
Viratchara Laokawee ◽  
Ruttapol Boonprachai ◽  
Mitsutaka Haruta ◽  
...  
Keyword(s):  
Energy Density ◽  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Low Cost ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Cost Approach

Novel anode materials for lithium-ion batteries, nanocomposites of Sn (or SnO2) and SiO2 with graphene-based sheets (GO, rGO and NrGO), were synthesized by a facile and low-cost technique. The capacity of all composites was relatively high as compared to traditional graphite.

Si/SiO2 Composite Negative Electrode Material for Lithium Ion Batteries

2014 ◽  
Vol 809-810 ◽  
pp. 781-786
Author(s):  
Min Liu ◽  
Na Zhang ◽  
Feng Hui Zhao ◽  
Xiao Qin Zhao ◽  
Ke Chen ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Anode Material ◽  
Specific Capacity ◽  
High Capacity ◽  
Negative Electrode ◽  
Lithium Ion ◽  
High Energy ◽  
X Ray Diffraction ◽  
Ball Milling Technique

As lithium-ion battery anode materials, silicon has the highest specific capacity. In order to restrain pure silicon’s serious volume change and enhance its electrochemical performance, Si/SiO2 composites were prepared by using a convenient high energy ball-milling technique. The characteristics of the composites as anode material for rechargeable lithium-ion batteries were investigated by X-ray diffraction and scanning electron microscopy methods. The electrochemical performance of the anode material was studied, and it was found the composite anode had a high capacity of 1333 mAhg-1 in the first cycle and 400 mAhg-1 could still be obtained after 46 cycles. Such prepared materials displayed improved cycle life.

scholarly journals NiCo2S4 Nanocrystals on Nitrogen-Doped Carbon Nanotubes as High-Performance Anode for Lithium-Ion Batteries

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Haisheng Han ◽  
Yanli Song ◽  
Yongguang Zhang ◽  
Gulnur Kalimuldina ◽  
Zhumabay Bakenov
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
High Performance ◽  
High Capacity ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
High Energy ◽  
Cycling Stability ◽  
High Energy Density ◽  
Bimetallic Sulfide

AbstractIn recent years, the development of lithium-ion batteries (LIBs) with high energy density has become one of the important research directions to fulfill the needs of electric vehicles and smart grid technologies. Nowadays, traditional LIBs have reached their limits in terms of capacity, cycle life, and stability, necessitating their further improvement and development of alternative materials with remarkably enhanced properties. A nitrogen-containing carbon nanotube (N-CNT) host for bimetallic sulfide (NiCo2S4) is proposed in this study as an anode with attractive electrochemical performance for LIBs. The prepared NiCo2S4/N-CNT nanocomposite exhibited improved cycling stability, rate performance, and an excellent reversible capacity of 623.0 mAh g–1 after 100 cycles at 0.1 A g–1 and maintained a high capacity and cycling stability at 0.5 A g–1. The excellent electrochemical performance of the composite can be attributed to the unique porous structure, which can effectively enhance the diffusivity of Li ions while mitigating the volume expansion during the charge–discharge processes.

CuS2 sheets: a hidden anode material with a high capacity for sodium-ion batteries

2021 ◽  
Author(s):  
Shaohua Lu ◽  
Weidong Hu ◽  
Xiaojun Hu
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
Low Cost ◽  
High Capacity ◽  
Lithium Ion ◽  
Sodium Ion ◽  
Sodium Ion Batteries

Due to their low cost and improved safety compared to lithium-ion batteries, sodium-ion batteries have attracted worldwide attention in recent decades.

Synthesis of α-Fe2O3/carbon nanocomposites as high capacity electrodes for next generation lithium ion batteries: a review

2016 ◽  
Vol 4 (47) ◽  
pp. 18223-18239 ◽  
Author(s):  
Miriam Keppeler ◽  
Nan Shen ◽  
Shubha Nageswaran ◽  
Madhavi Srinivasan
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
High Capacity ◽  
Lithium Ion ◽  
Research Progress ◽  
Next Generation ◽  
Carbon Nanocomposites ◽  
Graphite Anodes

Review of the research progress in α-Fe2O3/carbon nanocomposites with superior electrochemical performance as promising alternatives to graphite anodes in LIBs.

Large-scale and low cost synthesis of graphene as high capacity anode materials for lithium-ion batteries

Carbon ◽  
2013 ◽  
Vol 64 ◽  
pp. 158-169 ◽  
Author(s):  
Shuangqiang Chen ◽  
Peite Bao ◽  
Linda Xiao ◽  
Guoxiu Wang
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Large Scale ◽  
Low Cost ◽  
High Capacity ◽  
Lithium Ion

Manganese phosphoxide/Ni5P4 hybrids as an anode material for high energy density and rate potassium-ion storage

2021 ◽  
Author(s):  
Sen Yang ◽  
Ting Li ◽  
Yiwei Tan
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
Large Scale ◽  
Low Cost ◽  
Lithium Ion ◽  
High Energy ◽  
Potassium Ion ◽  
High Energy Density ◽  
Active Materials ◽  
Ion Storage

Potassium-ion batteries (PIBs) that serve as low-cost and large-scale secondary batteries are regarded as promising alternatives and supplement to lithium-ion batteries. Hybrid active materials can be featured with the synergistic...

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