Succeeded first in the world to be observed using the X-ray cross-section of the electrodes of lithium-ion batteries.

Group of colleagues specific Takamatsu, Kyoto chemical reactions able to observe for the first time in the world with the X-ray cross-section of the electrodes of lithium-ion batteries in action, get up on the electrode to the degradation of the battery involved 24, I announced that it had found that there. Was published in the online edition of the German magazine dated 12 chemistry.
Lithium-ion batteries have been used mobile phones and electric vehicles, the battery, the short life problems. May lead to the elucidation of the degradation mechanism, the development of research results is expected in the future.
During degradation, the group of interest to the point where failure occurs out of ions between the electrode and the electrolyte of the battery. We have found that the use of X-rays, they succeeded in observation of the cross section of the first electrode, the reduction reaction occurs on the cross-sectional view of the electrode, which prevent the entry and exit of ions.
The "if you can clarify the mechanism by which lithium-ion battery is degraded, and in the future will lead to improved performance such as electric vehicles," the group said. By all means, I want to attain to early in the development of long-life lithium-ion battery.



京都大の高松特定研究員らのグループは、作動中のリチウムイオン電池の電極の断面をエックス線を使って世界で初めて観察することに成功し、電池の劣化に電極上で起きる化学反応が関与していることがわかったと２４日、発表した。１２日付の独化学誌オンライン版に掲載された。
　リチウムイオン電池は携帯電話や電気自動車、蓄電池に利用されているが、寿命の短さが課題。研究成果は劣化メカニズムの解明につながる可能性があり、今後の進展が期待される。
　グループは、劣化の際、電池の電極と電解液間のイオンの出入りに障害が生じる点に着目。エックス線を使い、初めて電極の断面の観察に成功し、電極の断面上で還元反応が起こり、イオンの出入りを妨げていることを突き止めた。
　同グループは「リチウムイオン電池が劣化するメカニズムを解明できれば、将来的には電気自動車などの性能向上にもつながる」としている。ぜひ、長寿命のリチウムイオン電池の開発にまで早期にこぎ着けてほしいですね。