Book contents
- Frontmatter
- Contents
- List of contributors
- Preface
- 1 When everything is connected
- 2 On the possible developments for the structural materials relevant for future mobile devices
- 3 Energy and power
- 4 Computing and information storage solutions
- 5 Sensing, actuation, and interaction
- 6 Future of Radio and Communication
- 7 Flat panel displays
- 8 Manufacturing and open innovation
- 9 Seeing beyond the hype: what the Internet teaches us about the development of nanotechnology
- 10 Conclusions
- Index
- References
3 - Energy and power
Published online by Cambridge University Press: 05 July 2014
Book contents
- Frontmatter
- Contents
- List of contributors
- Preface
- 1 When everything is connected
- 2 On the possible developments for the structural materials relevant for future mobile devices
- 3 Energy and power
- 4 Computing and information storage solutions
- 5 Sensing, actuation, and interaction
- 6 Future of Radio and Communication
- 7 Flat panel displays
- 8 Manufacturing and open innovation
- 9 Seeing beyond the hype: what the Internet teaches us about the development of nanotechnology
- 10 Conclusions
- Index
- References
Summary
Energy needs of future mobile devices
Renewable energy – portable energy sources
The increasing need for portable energy storage density due to the growing number of miniaturized and thin devices is driving the current development of energy storage in phones and other portable devices [1]. Figure 3.1 shows the development from the mobile phones of the 1990s to the multimedia centers of two decades later, and the evident development of the devices to thinner and more flexible forms.
The total power consumption will become even more important when more electronic devices are embedded in the environment. Also with standalone devices designed to operate without mains power supply for long periods, like years, there are new requirements. Energy storage and power management are among the top three issues for customers and developers in current and future mobile multimedia portable devices.
Improvements in conventional battery at the current yearly level are not expected to provide enough energy density to meet all the requirements of future multimedia portables. Even though the use of cellular radio frequency (RF) engine power is expected to reduce with integrated circuit (IC) process and intelligent circuit development, the increasing number of radios and integration of new digital radio, video, and multimedia broadcasting (DAB, DVB-H, DMB) and channel decoders represents a significant challenge both in terms of energy consumption and component costs. Adding wireless local area network (WLAN) and local radio capabilities increases the overall power consumption of smartphones that are already suffering from high energy drain due to the high power consumption of 2.5G/3G wireless modules.
Information
- Type
- Chapter
- Information
- Nanotechnologies for Future Mobile Devices , pp. 51 - 75Publisher: Cambridge University PressPrint publication year: 2010
References
[1] Future Mobile Handsets, 8th edition, Worldwide Market Analysis & Strategic Outlook, pp. 2006-2011, Informa UK Ltd, 2006.
[2] , Electrochemical supercapacitors – Scientific Fundamentals and Technological Applications.Kluwer Academic, 1999.Google Scholar
[3] , Characterization of carbon nanostructure electrode surface for low ESR battery structures. Dissertation for Master of Philosophy, University of Cambridge, 2008.Google Scholar
[4] , , , , and , Nanostructured materials for advanced energy conversion and storage devices. Nat. Mat., 4, 366-377, 2005.Google Scholar
[5] , , , et al., Effect of particle size on lithium intercalation into a-Fe2O3. J. Electrochem. Soc., 150, A133-A139, 2003.Google Scholar
[8] ,, and , Amorphous silicon as a possible anode material for Li-ion batteries, J. Power Sources, 81-82, 233-236, 1999.Google Scholar
[9] and , Lithium insertion in carbons containing nanodispersed silicon. J. Electrochem. Soc., 142, 326-332, 1995.Google Scholar
[10] , , , et al., High-performance lithium battery anodes using silicon nanowires, Nature Nanotechnology, 3, 31-35, 2008.Google Scholar
[11] , , and , Single wall carbon nanohorns and nanocones in Carbon Nanotubes, , , and , eds., Topics Appl. Physics 111, Springer-Verlag, 2008.Google Scholar
[12] , , , and , Large-scale synthesis of single-walled carbon nanohorns by submerged arc. Nanotech., 15, 546-550, 2004.Google Scholar
[14] , , , et al., Supercapacitors using single-walled carbon nanotube electrodes. Adv. Mater., 13, 1425-1430, 2001.Google Scholar
[15] and , High power density supercapacitor electrodes of carbon nanotube films by electrophoretic deposition, Nanotech., 17, 5314-5318, 2006.Google Scholar
[16] , , and , High power density supercapacitors using locally aligned carbon nanotube electrodes, Nanotech., 16, 350-353, 2005.Google Scholar
[17] , , , , , and , Anomalous increase in carbon capacitance atpore sizes less than 1 nanometer, Science, 313, 1760-1763, 2006.Google Scholar
[18] , , , , , and , Proton exchange membrane fuel cells with carbon nanotube based electrodes, Nano Lett., 4, 345-348, 2004.Google Scholar
[19] , , and , CNT-based electrodes with high efficiency for proton exchange membrane fuel cells, Electrochem. Solid State Lett., 8, A42-A44, 2004.Google Scholar
[20] , , , and , Deposition of platinum nanoparticles on organic functionalized carbon nanotubes grown in situ on a carbon paper for fuel cells. Nanotech., 16, S395-S400, 2005.Google Scholar
[21] , , , , and , Polyaniline nanofibers supported platinum nanoelectrocatalysts for direct methanol fuel cells, Nanotechnology, 17, 5254-5259, 2006.Google Scholar
[22] , and , Warsaw, a review of commercial energy harvesters for autonomous sensors, in Proceedings of the 2007 IEEE Instrumentation & Measurement Technology Confrence, IMTC2007, , ed., IEEE 2007.Google Scholar
[23] , , , , and , Recycling ambient microwave energy with broad-band rectenna arrays. IEEE Trans. Microwave Theory And Techniques, 52, 1014-1024, 2004.Google Scholar
[25] , , and , Battery Management Systems – Design by Modeling, Philips research book series, vol. 1, pp. 50-52, Kluwer Academic Publishers, 2002.Google Scholar
[26] , , , , and , Nanostructured materials for advanced energy conversion and storage devices, Nat. Mat., 4, 253-260, 2005.Google Scholar
[28] , , , et al., Arrays of coaxial multiwalled carbonnanotube-amorphous silicon solar cells, Adv. Mater. to be published.
[30] and , A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films, Nature, 353, 737-740, 1991.Google Scholar
[31] , , , et al., Solid-state dye-sensitized mesoporous TiO2 solar cells with high photon-to-electron conversion efficiencies, Nature, 395, 583-585, 1998.Google Scholar
[32] , , , et al., Solid-state dye-sensitized solar cell based on a novel ionic liquid gel and ZnO nanoparticles on a flexible substrate, Nanotech., 19, 424006, 2008.Google Scholar
[33] , , , et al., Photoelectrochemical cell using dye sensitized zinc oxide nanowires grown on carbon fibers, Appl. Phys. Lett., 93, 133116, 2008.Google Scholar
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