| Budget Amount *help |
¥12,220,000 (Direct Cost: ¥9,400,000、Indirect Cost: ¥2,820,000)
Fiscal Year 2020: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2019: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2018: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
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| Outline of Final Research Achievements |
In order to realize next-generation rechargeable batteries with excellent energy and power density as well as high safety, a more precise electrode design based on kinetic parameters in addition to conventionally discussed equilibrium ones is required. In this study, we have developed a new single particle measurement system for the accurate evaluation of volume changes and resulting mechanical stress of electrode active material particles during charge and discharge processes. Those important kinetic parameters related to electrode deterioration were detected with high sensitivity and responsiveness by designing current collector probes. We have also developed a new method using micro-cavity current collectors as a more simplified one to evaluate electrode active materials.
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