成果報告書詳細
管理番号20150000000228
タイトル*平成26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2015/5/26
報告書年度2014 - 2014
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 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. To measure the in situ reaction distribution, we have developed Energy Scanning Confocal X-ray diffraction. Also, while independently evaluating the behavior of the anode / cathode in the battery using the in situ neutron method, we have succeeded in capturing the reaction distribution phenomenon and the unstable occurring in the battery.
In the study of “Battery reaction”, we have built a measurement system at low temperatures for single particle measurement of the active material for lithium-ion batteries. After examining the rate characteristics of -10 ℃, up to 10 ℃,we found out that the discharge capacity is approximately equal to the value in a low-rate. In order to grasp the status of internal cells, we have developed a probe of 30 μm diameter and spatial resolution. This improved probe made clear that it was applicable in an alkali aqueous solutions of high concentration.
In the study of “Innovative battery (Post LIB) -metal-air batteries-“, we selected zinc metal anode material because it have high energy density can be charged in aqueous solution, also the materials safety, high utilization and longer life were considered. As a result of controlling solubility of the zinc in the electrolyte by an additive, and having planned improvement of the life for charging and discharging, we have confirmed that it is possible to charge and discharge about 1000 times, even by increasing the zinc utilization 75%.
In the study of “Innovative battery (Post LIB) -nano interface controlled batteries-“, using a metal fluoride as the cathode / anode active material capable of multi-electron transfer, Bi to the cathode, Ce to the anode, the result of comparison with the reported battery case ,has an energy density of about 2 times, good cycle is revealed to exhibit the characteristics. In the study of “Conversion type batteries-“, to control the solubility in the electrolyte of the positive electrode active material, we have examined the additive to the electrolyte. To perform a charge-discharge test by using a coin cell, the result of examining the battery characteristics, we are expecting that 300Wh / kg or more demonstration of development goals can be achieved. In the study of “Polyvalent metal batteries“, by making the temperature 150 ℃, we have found the middle temperature type polyvalent ion-conducting ion liquid which magnesium metal precipitates. In addition, we achieved reversible dissolution / separation of magnesium by using the magnesium alloy cathode in which the activity of Mg minimized.
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