Degradation analyses of lithium ion battery by temperature controlled in-situ analytical method
Project/Area Number |
15K17928
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Device related chemistry
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Research Institution | Japan Automobile Research Institute |
Principal Investigator |
Matsuda Tomoyuki 一般財団法人日本自動車研究所, FC・EV研究部, 研究員 (90595696)
|
Project Period (FY) |
2015-04-01 – 2017-03-31
|
Project Status |
Completed (Fiscal Year 2016)
|
Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
|
Keywords | 反応分布 / リチウムイオン電池 / 劣化解析 / その場分析 / 温度特性 |
Outline of Final Research Achievements |
The improvement of the life of lithium-ion batteries (LIBs) is quite an important task for the diffusion of electric vehicles. In this study, we have constructed an in-situ measurement system with temperature control in order to clarify the influence of temperature and current density on electrode reaction and degradation of LIBs. We conducted in-situ measurements at the synchrotron radiation facility, and we successfully observed the electronic state change at charging and discharging with two temperature conditions and two current densities. In addition, a hysteresis of Ni K-edge energy was observed between charging and discharging, which suggests that there is a possibility that the difference in the reaction distribution in the electrode due to the charge / discharge environment may affect the observed degradation tendency.
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Report
(3 results)
Research Products
(1 results)