Lithium-ion batteries for automotive use require not only downsizing but also compatibility between energy density and power density. To satisfy these requirements, a phenomenological understanding of the conditions occurring in a battery during operation is essential. Understanding the behavior of ion transport during charging and discharging is an especially key factor for optimal battery design. This paper presents the results of X-ray in-situ visualization and in-situ electrochemical impedance spectroscopy (EIS). X-ray analysis showed the ion concentration change at the electrodes and EIS revealed the resistance change. The results agreed well quantitatively and were validated by a numerical method.
|出版ステータス||Published - 2018|
|イベント||31st International Electric Vehicle Symposium and Exhibition, EVS 2018 and International Electric Vehicle Technology Conference 2018, EVTeC 2018 - Kobe City, Japan|
継続期間: 2018 9 30 → 2018 10 3
|Conference||31st International Electric Vehicle Symposium and Exhibition, EVS 2018 and International Electric Vehicle Technology Conference 2018, EVTeC 2018|
|Period||18/9/30 → 18/10/3|
ASJC Scopus subject areas