• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Improvement of electronic conductivities by nao-junction interface control and its application to cathode materials of rechargeable lithium batteries

Research Project

Project/Area Number 24360405
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section一般
Research Field Energy engineering
Research InstitutionTokyo Institute of Technology

Principal Investigator

TANIGUCHI Izumi  東京工業大学, 理工学研究科, 准教授 (00217126)

Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000)
Fiscal Year 2014: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2013: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2012: ¥11,310,000 (Direct Cost: ¥8,700,000、Indirect Cost: ¥2,610,000)
Keywordsリチウム二次電池 / 正極材料 / ナノ構造材料 / 珪酸マンガンリチウム / 珪酸鉄リチウム / 噴霧熱分解法 / ナノ複合化 / ピロ燐酸鉄リチウム / ピロ燐酸マンガンリチウム / リチウムイオン二次電池 / ボールミル粉砕法 / ナノ接合界面 / ケイ酸マンガンリチウム / ナノ複合体 / ナノ複合材料
Outline of Final Research Achievements

Synthesis of Li2MSiO4 and Li2MP2O7 (M=Fe and Mn) was carried out from a combination of low temperature spray pyrolysis and ball-milling at various synthesis conditions, such as spray pyrolysis temperatures, synthesis atmospheres, annealing temperatures, ball-milling times rotational speeds and milling times. The effect of process conditions on their physical and electrochemical properties was discussed. Field-emission scanning electron microscopy and transmission electron microscopy with energy-dispersive spectroscopy verified that the final samples are agglomerates of Li2MSiO4 or Li2MP2O7 primary particles with less than 100 nm and that the carbon was well-distributed on the surface of the agglomerates. Li2MSiO4/C or Li2MP2O7 nanocomposite samples were used as an electrode material for rechargeable lithium batteries, and electrochemical measurements were carried out at room temperature. These cells showed good electrochemical properties.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Annual Research Report
  • 2012 Annual Research Report
  • Research Products

    (5 results)

All 2015 2014 2013

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Acknowledgement Compliant: 1 results) Presentation (2 results)

  • [Journal Article] Synthesis and characterization of Li2MnP2O7/C composite by a combination of spray pyrolsys and wet ball-milling followed by annealing2015

    • Author(s)
      Maki Hasumi, Izumi Taniguchi
    • Journal Title

      Materials Letter

      Volume: 134 Pages: 202-205

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Synthesis of Li2MnSiO4/C nanocomposites for lithium battery cathode employing sucrose as carbon source2014

    • Author(s)
      S. Shao, I. Taniguchi
    • Journal Title

      Electrochim Acta

      Volume: 128 Pages: 156-162

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Synthesis and electrochemical characterization of Li_2Fe_xMn^<1-x>SiO/C(O≦x≦0.8)nanocomposite cathode n)r lithium-ion batteries2013

    • Author(s)
      B. Shao, Y. Abe, I. Taniguchi
    • Journal Title

      Powder Technology

      Volume: 235 Pages: 1-8

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Presentation] Preparation of Li2MSiO4/C(M=Fe,Mn) Nanocomposites by a Novel Synthesis Methode for Lithium Battery Cathode2013

    • Author(s)
      Bin Shao,Yasuyuki Abe, Izumi Taniguchi
    • Organizer
      13th Topical meeting of the international society of electrochemistry
    • Place of Presentation
      Pretoria, South Africa
    • Related Report
      2013 Annual Research Report
  • [Presentation] Synthesis of Li2MnSiO4/C nanocomposites for lithium battery cathode employing surcrose as carbon source2013

    • Author(s)
      Bin Shao, Izumi Taniguchi
    • Organizer
      13th Topical meeting of the international society of electrochemistry
    • Place of Presentation
      Pretoria, South Africa
    • Related Report
      2013 Annual Research Report

URL: 

Published: 2012-04-24   Modified: 2019-07-29  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi