成果報告書詳細
管理番号20130000000419
タイトル*平成24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2014/1/28
報告書年度2012 - 2012
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 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)”.
The study of "Advanced analysis" has achieved the main target of R&D at the end of FY2012, the development of analytical new method advances to investigate the phenomenon of storage batteries. In analytical development using Synchrotron Radiation, we have promoted the analysis under reaction of Lithium Ion Batteries and Innovative Batteries by beam line BL28-XU exclusive use of storage batteries at Spring-8. In analytical development using neutron, we have constructed J-PARC having pulsed neutron source and have promoted commissioning of beam line BL09 (SPICA) exclusive use of storage batteries, that have top level of high resolution and high strength in the world. As a result, we have achieved the resolution target 0.09%. Moreover, good diffractions have been observed in various areas of small angle to backward. We have got the high quality data which is useful for Rietveld analysis in backward bank. In analytical development using nuclear spin, we have promoted NMR analysis which focused sharply on limited structure of light elements such as lithium, especially development of measure technique using solid NMR system in super high magnetic field. Then, we have advanced to elucidate the phenomenon of storage batteries. In simulation of advanced analysis and material movement based on technique of computational science, we have developed the technique using the first principle computation and have helped to promote understanding of phenomenon in storage batteries.
The study of “Battery Reaction” mainly engaged in lab analysis is needed to speed up the transportation of Lithium Ion from cathode to anode to advance the rate property of Lithium Ion Batteries (LIB). Analyzing battery reaction by various space scale and time scale has helped to promote the elucidation of cathode reaction and degradation mechanism, the elucidation of carbon anode reaction and degradation mechanism, new electrolyte solution/electrode interface reaction analysis, battery reaction distribution analysis. And it has also helped to elucidate the effective phenomenon mechanism.
Concerning metal air batteries, we have mainly investigated about the analysis of degradation reason in anode and the construction of method to solve by leading-edge technique of advanced analysis. That is to improve the cycle length of discharge and charge. The nano interface controlled batteries are new style of storage batteries. It controls nano interface of inactive materials and changes it oxidation-reduction reaction activated. And it also combines with materials which make multi-electron transfer possible, as a result, makes it high energy density. As electrode materials, we have tried to establish the electrode solution which dissolves active materials and causes oxidation-reduction reaction. It has become clear that it is needed to check if there are any obstructive factors in electron reaction by repetition of discharge and charge, and to construct the method to control them if necessary when we use cathode active material.
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