Facile synthesis of porous MnCo2O4.5 hierarchical architectures for high-rate supercapacitors

CrystEngComm ◽  
2014 ◽  
Vol 16 (12) ◽  
pp. 2335-2339 ◽  
Author(s):  
Wenyao Li ◽  
Kaibing Xu ◽  
Guosheng Song ◽  
Xiying Zhou ◽  
Rujia Zou ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Oxide ◽  
Rate Capability ◽  
High Rate ◽  
Oxide Material ◽  
Facile Synthesis ◽  
Supercapacitor Electrode ◽  
Hierarchical Architectures ◽  
Excellent Cycling Stability ◽  
Mixed Transition

A supercapacitor electrode of porous urchin-like MnCo2O4.5 hierarchical architectures demonstrated an outstanding rate capability and excellent cycling stability, which could be considered as a potential mixed transition metal oxide material for high-rate supercapacitors.

Pulsed laser deposition and characterization of LiMn2O4 thin Films for applications in Li Ion rechargeable battery systems

1999 ◽  
Vol 575 ◽  
Author(s):  
D. Singh ◽  
R. Houriet ◽  
R. Vacassy ◽  
H. Hofinann ◽  
V. Craciun ◽  
...  
Keyword(s):  
Thin Films ◽  
Transition Metal ◽  
Metal Oxide ◽  
Rate Capability ◽  
Pulsed Laser ◽  
Lithium Ion ◽  
Transition Metal Oxide ◽  
Porous Electrodes ◽  
High Rate ◽  
Electrochemical Characteristics

ABSTRACTMost studies focused on fundamental aspects of cathode materials in lithium ion battery employ porous electrodes, which are made of polymer bonded transition metal oxide powders mixed with conductors such as carbon. However, the powder morphology and the presence of carbon and polymeric binders affect the physical, chemical and electrochemical behaviors significantly. Therefore, transition metal oxide based materials in thin film form, which are dense and contain no additives, are emerging as promising alternatives to study fundamental properties in lithium ion batteries. Pulsed laser ablation (PLD) was used to deposit highly textured thin and thick porous films of LiMn2O4. Effect of various parameters such as substrates and deposition conditions were studied on the microstructure of these films. Microstructure studies of these films were carried out using x-ray diffraction and scanning electron microscopy. The electrochemical measurements were carried out in a glove box using cyclic voltammetery, electrochemical cycling and AC Impedance spectroscopy in a half-cell configuration with lithium metal as an anode and reference electrode and LiMn2O4 film as a cathode. Results indicate differences in film morphology greatly effect electrochemical kinetics of Li intercalation and de-intercalation. Thin films show good electrochemical characteristics such as high rate capability, good coulombic efficiency and rechargeability till 400 cycles.

Two-dimensional ultrathin ZnCo2O4 nanosheets: general formation and lithium storage application

2015 ◽  
Vol 3 (18) ◽  
pp. 9556-9564 ◽  
Author(s):  
Youqi Zhu ◽  
Chuanbao Cao ◽  
Junting Zhang ◽  
Xingyan Xu
Keyword(s):  
Transition Metal ◽  
Large Scale ◽  
Storage Capacity ◽  
Rate Capability ◽  
High Rate ◽  
Two Dimensional ◽  
High Rate Capability ◽  
Lithium Storage ◽  
Excellent Cycling Stability ◽  
General Method

2D multicomponent transition-metal oxide nanosheets are synthesized on a large scale via a general method. Ultrathin ZnCo2O4 nanosheets exhibit high lithium storage capacity, excellent cycling stability, and good high-rate capability.

A quinary layer transition metal oxide of NaNi1/4Co1/4Fe1/4Mn1/8Ti1/8O2 as a high-rate-capability and long-cycle-life cathode material for rechargeable sodium ion batteries

2015 ◽  
Vol 51 (86) ◽  
pp. 15712-15715 ◽  
Author(s):  
Ji-Li Yue ◽  
Wen-Wen Yin ◽  
Ming-Hui Cao ◽  
Shadike Zulipiya ◽  
Yong-Ning Zhou ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Oxide ◽  
Cathode Material ◽  
Rate Capability ◽  
Transition Metal Oxide ◽  
Sodium Ion ◽  
High Rate ◽  
Sodium Ion Batteries ◽  
High Rate Capability ◽  
Layer Transition

A single-phase quinary layer transition metal oxide of NaNi1/4Co1/4Fe1/4Mn1/8Ti1/8O2 was synthesized as a high-rate-capability and long-life cathode material for sodium-ion batteries.

Graphene and Metal Oxide Composites for Supercapacitors

2012 ◽  
Vol 608-609 ◽  
pp. 1074-1077 ◽  
Author(s):  
Yun Fu Liu ◽  
Zhao Hua Jiang ◽  
Guo Hui Yuan
Keyword(s):  
Metal Oxide ◽  
Metal Oxides ◽  
Hydrothermal Method ◽  
High Capacity ◽  
Rate Capability ◽  
Synthetic Methods ◽  
High Rate ◽  
High Rate Capability ◽  
Supercapacitor Electrode ◽  
Oxide Composites

Graphene-metal oxide composites as supercapacitor electrodes combine the large pseudocapacitance of metal oxides with the fascinating electrical and mechanical properties and large surface area of graphene. The synthetic methods for composites are reviewed, including in-siu synthesis, solution mixing, hydrothermal method, microware irradiation and electrochemical deposition. Among these techniques, the hydrothermal method offers an effective and simple way to anchor metal oxides on the 2D graphene sheet uniformly. Consequently, the composites exhibit high capacity, high rate capability and well reversibility, presenting promising prospects as supercapacitor electrode material.

Facile Synthesis of Transition-Metal Oxide Nanocrystals Embedded in Hollow Carbon Microspheres for High-Rate Lithium-Ion-Battery Anodes

2013 ◽  
Vol 19 (30) ◽  
pp. 9811-9816 ◽  
Author(s):  
Jun Liu ◽  
Wei Liu ◽  
Kunfeng Chen ◽  
Shaomin Ji ◽  
Yichun Zhou ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Oxide ◽  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Transition Metal Oxide ◽  
High Rate ◽  
Carbon Microspheres ◽  
Facile Synthesis ◽  
Hollow Carbon ◽  
Hollow Carbon Microspheres

Unraveling the Rapid Redox Behavior of Li‐Excess 3d‐Transition Metal Oxides for High Rate Capability

2020 ◽  
Vol 10 (17) ◽  
pp. 1904092 ◽  
Author(s):  
Wooyoung Jin ◽  
Seungjun Myeong ◽  
Jaeseong Hwang ◽  
Haeseong Jang ◽  
Jaekyung Sung ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
Rate Capability ◽  
High Rate ◽  
Redox Behavior ◽  
High Rate Capability

Facile synthesis of mesoporous V2O5 nanosheets with superior rate capability and excellent cycling stability for lithium ion batteries

2015 ◽  
Vol 294 ◽  
pp. 1-7 ◽  
Author(s):  
Huanqiao Song ◽  
Cuiping Zhang ◽  
Yaguang Liu ◽  
Chaofeng Liu ◽  
Xihui Nan ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cycling Stability ◽  
Facile Synthesis ◽  
Excellent Cycling Stability

Facile Synthesis of 0.6Li2MnO3-0.4LiNi0.5Mn0.5O2 with Hierarchical Micro/Nanostructure and High Rate Capability as Cathode Material for Li-Ion Battery

2015 ◽  
Vol 31 (8) ◽  
pp. 1527-1534
Author(s):  
Xia-Xing. SHI ◽  
◽  
Shi-Xuan. LIAO ◽  
Bing. YUAN ◽  
Yan-Jun. ZHONG ◽  
...  
Keyword(s):  
Cathode Material ◽  
Rate Capability ◽  
High Rate ◽  
Li Ion Battery ◽  
High Rate Capability ◽  
Facile Synthesis ◽  
Li Ion
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