Energy Technology

Cover image for Vol. 2 Issue 2

February 2014

Volume 2, Issue 2

Pages 133–215

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Graphical Abstract
    4. Review
    5. Communication
    6. Full Papers
    7. Book Review
    1. Cover Picture: Ultrathin Surface Modification by Atomic Layer Deposition on High Voltage Cathode LiNi0.5Mn1.5O4 for Lithium Ion Batteries (Energy Technol. 2/2014) (page 133)

      Xin Fang, Mingyuan Ge, Jiepeng Rong, Yuchi Che, Noppadol Aroonyadet, Xiaoli Wang, Yihang Liu, Anyi Zhang and Prof. Chongwu Zhou

      Article first published online: 14 FEB 2014 | DOI: 10.1002/ente.201490002

      Thumbnail image of graphical abstract

      High Energy and a Long Life—An Al2O3 coating for Li-ion Battery Electrodes: The cover image demonstrates ultrathin Al2O3 coating by using atomic layer deposition on the high-voltage cathode LiNi0.5Mn1.5O4 for high-energy-density, stable Li-ion batteries. The ultrathin coating can protect the LiNi0.5Mn1.5O4 cathode from undesired reactions during high-voltage cycling. At the same time, the electron path can be maintained and the extra weight added to the electrode is negligible. As described in the Full Paper by Prof. Chongwu Zhou and colleagues at the University of Southern California on page 159, superior performance can be achieved from the high-voltage cathode of this battery configuration in both room-temperature and high-temperature tests.

  2. Graphical Abstract

    1. Top of page
    2. Cover Picture
    3. Graphical Abstract
    4. Review
    5. Communication
    6. Full Papers
    7. Book Review
    1. Graphical Abstract: Energy Technol. 2/2014 (pages 135–138)

      Article first published online: 14 FEB 2014 | DOI: 10.1002/ente.201490003

  3. Review

    1. Top of page
    2. Cover Picture
    3. Graphical Abstract
    4. Review
    5. Communication
    6. Full Papers
    7. Book Review
    1. Processes for Production of Solar-Grade Silicon Using Hydrogen Reduction and/or Thermal Decomposition (pages 141–154)

      Dr. Kouji Yasuda, Prof. Kazuki Morita and Prof. Toru H. Okabe

      Article first published online: 10 FEB 2014 | DOI: 10.1002/ente.201300131

      Thumbnail image of graphical abstract

      Making the grade: This paper presents a review of various types of solar-grade silicon production processes, particularly those based on the hydrogen reduction and/or thermal decomposition of halides and silane gases. These processes are classified on the basis of Si compounds used and the reaction types; further, the features of these processes are also analyzed. Future prospects for the development of new high-purity Si production process are also presented.

  4. Communication

    1. Top of page
    2. Cover Picture
    3. Graphical Abstract
    4. Review
    5. Communication
    6. Full Papers
    7. Book Review
    1. Nitrogen-Containing Polycyclic Quinones as Cathode Materials for Lithium-ion Batteries with Increased Voltage (pages 155–158)

      Dr. Akihiro Shimizu, Yutaka Tsujii, Hiroki Kuramoto, Dr. Toshiki Nokami, Dr. Yuu Inatomi, Nobuhiko Hojo and Prof. Jun-ichi Yoshida

      Article first published online: 10 FEB 2014 | DOI: 10.1002/ente.201300148

      Thumbnail image of graphical abstract

      Thinking electronegatively: The replacement of CH with N in p- and o-quinones as cathode materials is effective in increasing the voltage of lithium-ion batteries without decreasing the capacity. The coordination of N to Li in the reduced forms and the greater electronegativity of N compared to C make reduction energetically more favorable.

  5. Full Papers

    1. Top of page
    2. Cover Picture
    3. Graphical Abstract
    4. Review
    5. Communication
    6. Full Papers
    7. Book Review
    1. Ultrathin Surface Modification by Atomic Layer Deposition on High Voltage Cathode LiNi0.5Mn1.5O4 for Lithium Ion Batteries (pages 159–165)

      Xin Fang, Mingyuan Ge, Jiepeng Rong, Yuchi Che, Noppadol Aroonyadet, Xiaoli Wang, Yihang Liu, Anyi Zhang and Prof. Chongwu Zhou

      Article first published online: 16 DEC 2013 | DOI: 10.1002/ente.201300102

      Thumbnail image of graphical abstract

      Good cycling performance! Ultrathin Al2O3 can be coated on prefabricated electrodes through atomic layer deposition (ALD). ALD Al2O3-coated LiNi0.5Mn1.5O4 electrodes show superior performance for high-energy and long-cycle-life lithium ion batteries. The batteries can maintain 63 % capacity after as long as 900 cycles, which converts to only 0.04 % capacity decay per cycle.

    2. Scaling of Recovery by Cocurrent Spontaneous Imbibition in Fractured Petroleum Reservoirs (pages 166–175)

      Dr. Abouzar Mirzaei-Paiaman and Dr. Mohsen Masihi

      Article first published online: 10 FEB 2014 | DOI: 10.1002/ente.201300155

      Thumbnail image of graphical abstract

      A matter of scale: Due to the significant difference between the recoveries performance of co- and countercurrent spontaneous imbibition, the use of the sole scaled-up results of countercurrent displacement leads to pessimistic forecasts regarding the rate of recovery and final recovery. The analytical solution to the cocurrent displacement problem is used in this study to develop the appropriate scaling equations.

    3. Influence of Mixing Technology and the Potential to Modify the Morphological Properties of Materials used in the Manufacture of Lithium-Ion Batteries (pages 176–182)

      Valentin Wenzel, Richard Sebastian Moeller and Hermann Nirschl

      Article first published online: 10 FEB 2014 | DOI: 10.1002/ente.201300091

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      Process understanding: It is important to improve lithium-ion battery technology in terms of quality and by reduction of manufacturing costs. This study shows important correlations between material properties and machine parameters, and will provide a new insight into the interaction between the mechanical energy input and the characteristics of batteries. It is also shown that supposedly easy-to-detect parameters may reflect an inconclusive result.

    4. Photocatalytic Hydrogen Generation from Pure Water using Silicon Carbide Nanoparticles (pages 183–187)

      Dr. Yuliang Zhang, Ting Xia, Petra Wallenmeyer, Cindel X. Harris, Appie A. Peterson, Gerald A. Corsiglia, Prof. James Murowchick and Xiaobo Chen

      Article first published online: 4 FEB 2014 | DOI: 10.1002/ente.201300124

      Thumbnail image of graphical abstract

      SiC performs the splits: SiC nanoparticles show high activity for water splitting in generating H2 from pure water under simulated sunlight. SiC nanoparticles show activity in both ultraviolet (UV) and visible-light regions, and the addition of methanol in water or loading of Pt nanoparticles on the surface lowers their activity. Thus, SiC nanoparticles may serve as an ideal model photocatalyst for future water splitting studies.

    5. Increased Capacity of LiNi1/3Co1/3Mn1/3O2–Li[Li1/3Mn2/3]O2 Cathodes by MnOx-surface Modification for Lithium-Ion Batteries (pages 188–193)

      Dr. Jun Wang, Xin He, Richard Kloepsch, Sihui Wang, Bjoern Hoffmann, Dr. Sangsik Jeong, Prof. Yong Yang and Dr. Jie Li

      Article first published online: 10 FEB 2014 | DOI: 10.1002/ente.201300127

      Thumbnail image of graphical abstract

      Increasing capacity: MnOx-surface modified Li1.2Ni0.4/3Co0.4/3Mn1.6/3O2 materials are synthesized by solid-state reaction. The modified sample shows higher discharge capacity and Coulombic efficiency than the pristine sample, in conjunction with better rate capability. By using PYR14FSI/LiTFSI (9:1 in molar ratio) as the electrolyte, the cycling performance of the modified sample could be successfully improved.

    6. Technical Aspects of Ethyl Tert-Butyl Ether (ETBE) for Large-Scale Use as Gasoline Improver (pages 194–204)

      M. E. Bardin, A. M. T. A. El-Dein Hussin, P. A. Gushchin, V. A. Vinokurov and Dr. A. A. Burluka

      Article first published online: 10 FEB 2014 | DOI: 10.1002/ente.201300130

      Thumbnail image of graphical abstract

      Giving it the gas: Ethyl tert-butyl ether (ETBE) is a promising gasoline improver and this study shows its comparison with other prospective oxygenated fuel additives. An experimental investigation is performed on the impact of employing relatively large proportions of ETBE in fuel blends and a particular emphasis is put on the magnitude of cyclic variations at different operating conditions.

    7. Enhanced Thermal Energy Harvesting Using Li, K-Doped Bi0.5Na0.5TiO3 Lead-Free Ferroelectric Ceramics (pages 205–209)

      Aditya Chauhan, Satyanarayan Patel, Gaurav Vats and Dr. Rahul Vaish

      Article first published online: 10 FEB 2014 | DOI: 10.1002/ente.201300138

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      Getting the lead out: Lead-free ferroelectric ceramics offer nonpolluting alternatives to their lead-based counterparts. In this study, an attempt is made to shed some light on the thermal energy harvesting potential of Li and K-Doped Bi0.5Na0.5TiO3 through the use of Olsen cycle. The reported energy density is higher than that of most lead-based compounds.

    8. Highly Enriched Nickel-63 Radionuclide for β-Voltaic Nuclear Batteries (pages 210–214)

      B. Bryskin, A. Pustovalov, L. Tsvetkov, V. Fedorov and A. Kostylev

      Article first published online: 10 FEB 2014 | DOI: 10.1002/ente.201300147

      Thumbnail image of graphical abstract

      New Solution! The radionuclide nickel-63 is an ideal energy source for long-lived (≥30 years) and miniature nuclear batteries (NB). Theoretical calculations and experimental studies are performed to show the development of new technology for the large-scale production of nickel-63 with a concentration in the final product exceeding 80 %.

  6. Book Review

    1. Top of page
    2. Cover Picture
    3. Graphical Abstract
    4. Review
    5. Communication
    6. Full Papers
    7. Book Review
    1. Powering Planet Earth: Energy Solutions for the Future. By Nicola Armaroli, Vincenzo Balzani, Nick Serpone (page 215)

      Prof.  Roy Nersesian

      Article first published online: 14 FEB 2014 | DOI: 10.1002/ente.201305020

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      Wiley-VCH, Weinheim 2013, 254 pp., €24.90—ISBN 978-3-527-33409-4

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