A simple, low-cost and eco-friendly approach to synthesize single-crystalline LiMn2O4 nanorods with high electrochemical performance for lithium-ion batteries

2015 ◽  
Vol 166 ◽  
pp. 124-133 ◽  
Author(s):  
Hongyuan Zhao ◽  
Fang Li ◽  
Xingquan Liu ◽  
Weiqiang Xiong ◽  
Bing Chen ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Low Cost ◽  
Lithium Ion ◽  
Single Crystalline

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.

Al-doped LiMn2O4 single crystalline nanorods with enhanced elevated-temperature electrochemical performance via a template-engaged method as a cathode material for lithium ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (9) ◽  
pp. 6372-6377 ◽  
Author(s):  
Dan Zhan ◽  
Ying Liang ◽  
Ping Cui ◽  
Zuoan Xiao
Keyword(s):  
Elevated Temperature ◽  
Electrochemical Performance ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Spinel Structure ◽  
Lithium Ion ◽  
Capacity Retention ◽  
Single Crystalline ◽  
Retention Ratio

Highly crystalline Al-doped LiMn2O4 nanorods shows capacity retention ratio of 70% with 3 C current rate at 50 °C, maintaining the spinel structure and the nanorod morphology with highly crystallinity after 500 discharge/charge cycles.

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.

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.

scholarly journals Improving the electrochemical performance of a natural molybdenite/N-doped graphene composite anode for lithium-ion batteries via short-time microwave irradiation

RSC Advances ◽  
2020 ◽  
Vol 10 (70) ◽  
pp. 43012-43020
Author(s):  
Shuonan Wang ◽  
Yun Hai ◽  
Bin Zhou ◽  
Hao Liu ◽  
Libing Liao
Keyword(s):  
Microwave Irradiation ◽  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Low Cost ◽  
Lithium Ion ◽  
Solvent Free ◽  
Composite Anode ◽  
Graphene Composite ◽  
Doped Graphene ◽  
Short Time

In this work, low-cost natural molybdenite was used to make a MoS2/N-doped graphene composite with the aid of (3-aminopropyl)-triethoxysilane and the electrochemical performance was greatly improved by solvent-free microwave irradiation.

Sign in / Sign up

Export Citation Format

Share Document