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2018 Fiscal Year Annual Research Report

金属リチウムを用いない新規リチウム蓄電池系の探索

Research Project

Project/Area Number 17J09973
Research InstitutionWaseda University

Principal Investigator

Wu Yunwen  早稲田大学, 先進理工学研究科, 特別研究員(DC2)

Project Period (FY) 2017-04-26 – 2019-03-31
KeywordsLi-ion battery
Outline of Annual Research Achievements

In this year, the new in-situ lithiation method was proposed. The lithium metal free Li2S-graphite full cell has been successfully fabricated through a chemical lithiation process which was conducted during assembling the cell. The pouch type cell with large area has been realized, making it a promising applicable lithiation method for Li2S full cell. This part of work has been published a paper in Journal of Power Sources.

On the other hand, the synthesis of Li2S/carbon nanoparticles was developed. In this way, the high weight ratio of Li2S in the cathode composite was realized. This method can be applied in various kinds of current collectors, which makes it a broader application field. This part of work has been submitted to high impact factor journal and in process.

Research Progress Status

平成30年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

平成30年度が最終年度であるため、記入しない。

  • Research Products

    (2 results)

All 2018

All Journal Article (2 results)

  • [Journal Article] Potentiostatic way to fabricate Li2Sx cathode with suppressed polysulfide formation2018

    • Author(s)
      Wu Yunwen、Jin Takuya、Momma Toshiyuki、Yokoshima Tokihiko、Nara Hiroki、Osaka Tetsuya
    • Journal Title

      Journal of Power Sources

      Volume: 399 Pages: 287~293

    • DOI

      10.1016/j.jpowsour.2018.07.107

  • [Journal Article] High performance sulfur graphite full cell for next generation sulfur Li-ion battery2018

    • Author(s)
      Toshiyuki Momma; Yunwen Wu; Hiroki Nara; Tetsuya Osaka
    • Journal Title

      Journal of Power Sources

      Volume: 388 Pages: 5-10

    • DOI

      10.1016/j.jpowsour.2018.03.051

URL: 

Published: 2019-12-27  

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