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Engineering and Construction
Pages 5 (1255 words)
Nanowire Battery Abstract The recent breakthrough in the nano technology has unveiled the power of nanowires in batteries to make them more efficient. Silicon and other nanowires when combined with the lithium – ion battery technology lead to reduced mass, enormous storage of electric power and longer life in terms of many charging cycles.
The basic electrodes in a lithium ion battery are modified by nanotechnology to improve the performance. This article intends to discuss the objectives of the nanowire battery technology. The basic features and the technology behind these batteries are discussed along with their advantages. Finally, the challenges and applications of Nano wire batteries are presented. Introduction The speed of operation of the present generation computers, other electronic gadgets and even electric cars are increasing at an exponential rate. This presents a demand for equivalent high capacity batteries to power them with high charging and discharging rate. The batteries that power the high speed devices like laptops, mobile phones, video games and even electric cars lack these characteristics due to chemical constraints. The traditional Lithium-ion batteries transfer lithium ions from carbon anode to a metal oxide cathode. As the number of lithium ion held by one carbon ion is only one, the charge density in these batteries is low. On the other hand, the Silicon anode has the capability to hold 4.4 lithium ions in one silicon atom. Scientists at the Stanford university (Chan. C.K. , Zhang. X. F. & Cui Y. , 2008) have explored the use of Silicon and Germanium nanowires for improved battery energy. ...
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