Electrochemical characteristics of graphene/manganese oxide composite catalyst for Li-oxygen rechargeable batteries

2013 ◽  
Vol 68 (8) ◽  
pp. 619-622 ◽  
Author(s):  
Ramchandra S. Kalubarme ◽  
Chang-Ho Ahn ◽  
Chan-Jin Park
Keyword(s):  
Manganese Oxide ◽  
Rechargeable Batteries ◽  
Composite Catalyst ◽  
Electrochemical Characteristics ◽  
Oxide Composite

Water defluoridation by aluminium oxide–manganese oxide composite material

2014 ◽  
Vol 35 (15) ◽  
pp. 1893-1903 ◽  
Author(s):  
Sheta Alemu ◽  
Eyobel Mulugeta ◽  
Feleke Zewge ◽  
Bhagwan Singh Chandravanshi
Keyword(s):  
Composite Material ◽  
Manganese Oxide ◽  
Aluminium Oxide ◽  
Oxide Composite ◽  
Oxide Composite Material

Fixation of Nitrogen to Ammonia with Photocatalytic on Petroleum Pitch-Based Graphene Oxide Supported Nickel/Nickel Oxide Composite Catalyst

2019 ◽  
Vol 123 (51) ◽  
pp. 31119-31129 ◽  
Author(s):  
Shi-Xin Wang ◽  
Halidan Maimaiti ◽  
Bo Xu ◽  
Yuan Guo ◽  
Pei-shuai Zhai ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Nickel Oxide ◽  
Composite Catalyst ◽  
Petroleum Pitch ◽  
Oxide Composite

Electrode Characteristics of Sputtered Lithium Manganese Oxide Films with Diamond-Like-Carbon Top Layer

2001 ◽  
Vol 672 ◽  
Author(s):  
Hee-Soo Moon ◽  
Kwang-Sun Ji ◽  
Won-Il Cho ◽  
Young-Soo Yun ◽  
Jong-Wan Park
Keyword(s):  
Manganese Oxide ◽  
Electron Cyclotron Resonance ◽  
Rapid Development ◽  
Carbon Film ◽  
Interface Reaction ◽  
Rechargeable Batteries ◽  
Lithium Manganese Oxide ◽  
Diamond Like Carbon ◽  
Lithium Manganese ◽  
Electrode Characteristics

ABSTRACTThere have been increasing interests in lithium rechargeable batteries, especially microbatteries, with rapid development of portable electronic equipments and MEMS(Micro electromechanical systems) technology. In this work, lithium manganese oxide, as a strong candidate for the battery materials, which is more abundant, stable in ambient state and less toxic than the other oxides such as lithium nickel oxides and lithium cobalt oxides, was deposited by rf magnetron sputter. The effect of thermal treatment on the microstructure and electrode characteristics of lithium manganese oxide cathode was investigated. In electrochemical experiment using liquid electrolyte, half-cell failure would be caused by manganese dissolution, degradation of electrolyte materials during charging/discharging process and so on. In this research we focus on interface reaction problem that would affect the cyclability and lifetime of microbattery. In order to reduce the interface reaction during operation, we introduce DLC(Diamond-like-Carbon) film that has high electrical resistivity, mechanical hardness and chemical stability. DLC film was deposited on sputtered lithium manganese oxide electrode by ECRCVD(Electron Cyclotron Resonance Chemical Vapor Deposition). DLC-top-layer LiMn2O4 film was more stable during charging/discharging reaction and higher discharge capacity in wide voltage windows than LiMn2O4 film.

A Study on the Effect of Structure and P-Doping of Si Thin Film as an Anode for Lithium Rechargeable Batteries

2007 ◽  
Vol 124-126 ◽  
pp. 1063-1066 ◽  
Author(s):  
Jin O Song ◽  
Heung Taek Shim ◽  
Dong Jin Byun ◽  
Joong Kee Lee
Keyword(s):  
Vapor Deposition ◽  
Silicon Film ◽  
Chemical Vapor ◽  
Rechargeable Batteries ◽  
Granular Structure ◽  
Silicon Anode ◽  
Electrochemical Characteristics ◽  
Capacitively Coupled ◽  
Silicon Thin Films ◽  
Lithium Rechargeable Batteries

Effects of substrate temperature and phosphor doping on electrochemical characteristics of the silicon film anode were investigated. The silicon thin films were synthesized directly on copper foil by radio-frequency capacitively coupled plasma-enhanced chemical-vapor deposition (r.f.-CVD). The cyclability of the silicon anode greatly depends on the surface morphology and surface resistivity. The silicon film anodes which have granular structure and high conductivity showed higher cyclabilty than those of planer and low conductivity, respectively.

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