Eriksson, T. 2001. LiMn2O4 as a Li-Ion Battery Cathode. From Bulk to Electrolyte Interface. Acta Universitatis Upsaliensis. Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 651. 53 pp. Uppsala. ISBN 91-554-5100-4. LiMn2O4 is ideal as a high-capacity Li-ion battery cathode material by virtue of its low toxicity, low cost, and the high natural abundance ...

In this work, Cu₂O nanoparticles were deposited on a carbon cloth cathode using a facile electrochemical method. The morphology of the modified cathode, which was characterized by scanning electron microscopy (SEM) and Brunauer-Emmett-Teller (BET) tests, showed that the porosity and specific surface area of the cathode improved with longer deposition times. X-ray photoelectron spectroscopy (XPS...

Rechargeable batteries with high energy and power density are in great demand as energy sources for various purposes; e.g., portable telecommunication, computer equipment, hybrid electric vehicles, etc. Lithiumion batteries are the most promising candidates to fulfill such needs due to their intrinsic high discharge voltage and relatively light weight. The current commercial lithium-ion battery...

The feasibility of utilizing disordered Ni-based metal hydroxide, as both the anode and the cathode materials, in alkaline rechargeable batteries was validated for the first time. Co and Mn were introduced into the hexagonal Ni(OH)2 crystal structure to create disorder and defects that resulted in a conductivity increase. The highest discharge capacity of 55.6 mAh ̈g ́1 was obtained using a comme...

This work is devoted to the study of the electrical characteristics of microhollow cathode discharges (MHCD) at moderate to high pressure in argon and air for different geometries. High-pressure glow discharges can be operated in MHCD devices with μm electrode spacing. Experiments have been performed to determine the so-called Paschen curves, i.e. the dependence of the breakdown voltage on the ...

In their brochure The Principles and Applications of Cathode-Ray Polarography Southern Analytical Ltd. (Camberley, Surrey, U.K.) refer to a paper in which one of their cathode-ray polarographs is used for the determination of amino acids containing thiol and disulphide groups (Coult, 1958). This work apparently takes no account of the fact that the shape of a rapid-sweep polarogram is more depe...

Rechargeable lithium-sulfur (Li-S) batteries hold great potential for high-performance energy storage systems because they have a high theoretical specific energy, low cost, and are eco-friendly. However, the structural and morphological changes during electrochemical reactions are still not well understood. In this Article, these changes in Li-S batteries are studied in operando by X-ray diffr...

This article describes the history of creation of the first digital computer in Russia. It started in the electronic systems laboratory of the Energy Institute of the USSR Academy of Science, led by I.S. Brook. The first developer was N.Y. Matyukhin. The computer M-1 consisted of arithmetic unit, main program sensor (control device), internal memory of two types (fast one – on cathode-ray tubes...

The eeects of vibration on cathode strip chamber operation are analyzed. Gas gain variation and low frequency noise tolerances lead to a speciication of a maximum vibration amplitude for various frequencies. Possible resonant wire vibrations are described.

Frederick’s (2005) Cognitive Reflection Test (CRT) is a 3item task shown to predict susceptibility to decision-making biases better than intelligence measures. It is described as measuring ‘cognitive reflection’ a metacognitive trait capturing the degree to which people prefer to reflect on answers rather than giving intuitive responses. Herein, we ask how much of the CRT’s success can be expla...