イベント
第130回先端計測オープンセミナー
全固体電池断面における電位・リチウム分布のオペランド計測
増田秀樹 NIMSポスドク研究員 (先端材料解析研究拠点)
2018年9月28日 (金) 16:00-17:00 / September 28, 2018, 16:00-17:00
会場/Venue：
千現地区 管理棟1階 第2会議室
Sengen Central Building 1F Meeting Room No.2
Sengen Central Building 1F Meeting Room No.2
講演者/Speaker：
増田秀樹 NIMSポスドク研究員 (先端材料解析研究拠点)
Hideki MASUDA, NIMS Postdoctor Researcher (Research Center for Advanced Measurement and Characterization)
Hideki MASUDA, NIMS Postdoctor Researcher (Research Center for Advanced Measurement and Characterization)
表題/Title：
全固体電池断面における電位・リチウム分布のオペランド計測
Operando characterization of internal electrical potential distribution and Lithium distribution at the cross section of all-solid-state Lithium-ion batteries
Operando characterization of internal electrical potential distribution and Lithium distribution at the cross section of all-solid-state Lithium-ion batteries
講演要旨/Abstract：
次世代蓄電デバイスとして期待される全固体型リチウムイオン電池は、電極－固体電解質界面の抵抗により出力密度が上がらないという課題がある。この界面抵抗の起源を明らかにするために、電池内部の電位分布やリチウムイオン分布をオペランド計測する手法が求められている。講演では、Arイオンビームを用いた固体電池デバイスの断面作製法、走査型ケルビンプローブフォース顕微鏡を用いた電池の内部電位分布計測[1]、および飛行時間型二次イオン質量分析（ToF-SIMS）を用いたリチウムイオン分布のその場断面計測[2]について紹介する。また、講演者のNIMSでの4年半の研究をまとめる。
All-solid-state lithium-ion batteries are expected as the next generation energy storage devices. This battery has a problem that the power density decreases due to the high ionic resistivity at the electrode-solid electrolyte interface. To clarify the origin of the interfacial resistivity, there is a demand for a method for operando measurements of the electrical potential distribution and the lithium-ion distribution inside the battery. In this presentation, I will introduce the cross section process of the battery devices using Ar ion beam and the cross-sectional operando characterizations (the potential distribution measurement using scanning Kelvin probe force microscopy [1] and the lithium ion distribution measurement using time-of-flight secondary ion mass spectrometry (ToF-SIMS ) [2]). I will also summarize the research for four and a half years at NIMS.
[1] H.Masuda, et al., Nanoscale,9(2017)893.
[2] H.Masuda, et al., J. Powersources,400(2018)527.
All-solid-state lithium-ion batteries are expected as the next generation energy storage devices. This battery has a problem that the power density decreases due to the high ionic resistivity at the electrode-solid electrolyte interface. To clarify the origin of the interfacial resistivity, there is a demand for a method for operando measurements of the electrical potential distribution and the lithium-ion distribution inside the battery. In this presentation, I will introduce the cross section process of the battery devices using Ar ion beam and the cross-sectional operando characterizations (the potential distribution measurement using scanning Kelvin probe force microscopy [1] and the lithium ion distribution measurement using time-of-flight secondary ion mass spectrometry (ToF-SIMS ) [2]). I will also summarize the research for four and a half years at NIMS.
[1] H.Masuda, et al., Nanoscale,9(2017)893.
[2] H.Masuda, et al., J. Powersources,400(2018)527.