成果報告書詳細
管理番号20140000000199
タイトル*平成25年度中間年報 革新型蓄電池先端科学基礎研究事業 革新型蓄電池先端科学基礎研究開発 (4)
公開日2014/5/17
報告書年度2013 - 2013
委託先名国立大学法人京都大学 株式会社GSユアサ 新神戸電機株式会社 トヨタ自動車株式会社 株式会社豊田中央研究所 日産自動車株式会社 パナソニック株式会社 株式会社日立製作所 株式会社本田技術研究所 三菱自動車工業株式会社 三菱重工業株式会社 日本軽金属株式会社 ソニー株式会社
プロジェクト番号P09012
部署名スマートコミュニティ部
和文要約
英文要約(FY2009-2015) FY2013 Annual Report

Kyoto University, GS Yuasa Corporation, Shin-Kobe Electric Machinery Co., Ltd., Toyota Motor Corporation, Toyota Central R&D Labs., Inc., Nissan Motor Co., Ltd., Panasonic Corporation, Hitachi, Ltd., Honda R&D Co.,Ltd., MITSUBISHI MOTORS CORPORATION, Mitsubishi Heavy Industries, Ltd., Nippon Light Metal Co., Ltd., Sony Corporation

In this project, analytical new methods for battery reactions have been studied by cooperation with companies, schools and government on purpose to develop innovative Lithium Ion Batteries (LIB). Kyoto University is the center of the project. Facilities for this research center are organized by researchers from university and cooperating companies. The promotion has been made mainly on “Advanced battery reaction analysis” and “Innovative battery (Post LIB)”.
In the study of “Advanced analysis”, we have researched and developed the leading-edge measurement technique for battery reaction and analysis that come with high spatial resolution, time resolution and elemental discrimination by using quantum beam technique of highly brilliant synchrotron radiation and high-strength pulsed neutron. We have observed the outermost surface behavior and film between active material and electrolyte interface, and have analyzed unbalanced structural change of active materials, reaction distribution in medical compound electrode. We substantiated that this technique is effective for both material innovation and development of innovative battery by the resolution of reasons to control the characteristic of storage battery and the creation of new concept to break the limit.
In the study of “Battery reaction”, we have analyzed battery reaction by various space scale and time scale while developing in-situ analysis to resolve the complicated mechanism of battery reaction. We have elucidated that discharge and charge reaction of Mn cathode materials is late compared with that of LiM2O4 by composing Mn cathode materials which can discharge and charge in high potential range over 4.5V and measuring the single particle as a method of resolving cathode reaction and degradation mechanism. As a method of resolving anode reaction and degradation mechanism, we have developed FT-IR measurement using disc type electrode to measure coating reaction on graphite electrode. As a result, it has become possible to measure spectrum under each electrical potential and has become clear the relation between electrode potential and coat forming.
In the study of “Innovative battery (Post LIB) -metal air batteries-“, we have applied reduction current to visualization cell, deposited zinc at working electrode, observed the zinc form which is deposited by using optical microscope to elucidate the mechanism of dendritic growth. We have elucidated that it is possible to control the deposition of dendritic zinc by having great difference of this construction on current density and controlling the zinc solubility in electrolyte by addition agent.
In the study of “Innovative battery (Post LIB) -nano interface controlled batteries-“, we have observed electrochemical behavior of metals such as Fe in various electrolytes. We have also observed the reaction mechanism by analyzing new materials which made on metal surface and elucidated the utility to active materials for storage battery.
In the study of “High Energy Density Multivalent Metal Rechargeable Batteries“,we develop new ionic liquid electrolytes having wide electrochemical windows, new positive electrodes which can utilize multi-electron transfer reactions, and multivalent metal negative electrodes possessing large capacities and negative redox potentials.
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