@article{22851c93057c4ae4a4e43f256b7522b9,
title = "Room temperature operation of all-solid-state battery using a closo-type complex hydride solid electrolyte and a LiCoO2 cathode by interfacial modification",
abstract = "We report on an all-solid-state battery that employs a closo-type complex hydride solid electrolyte and a LiCoO2 cathode. Interfacial modification between the solid electrolyte and cathode with a LiNbO3 buffer layer enables reversible charge-discharge cycling with a cell voltage of 3.9 V (vs. Li+/Li) at room temperature. Electrochemical analyses clarify that the given modification effectively suppresses side reactions at the cathode/solid electrolyte interface. The interfacial resistance is lowered by ca. 10 times with a 5 nm thick LiNbO3 buffer layer compared to that without a buffer layer, so that a discharge capacity of 109 mAh g−1 is achieved. These results suggest that interfacial modification can be a viable approach to the development of high-voltage all-solid-state batteries using closo-type complex hydride solid electrolytes and oxide cathodes.",
keywords = "All-solid-state batteries, Closo-type complex hydride, High-voltage cathodes, Interfacial modification, Solid electrolyte",
author = "Sangryun Kim and Kentaro Harada and Naoki Toyama and Hiroyuki Oguchi and Kazuaki Kisu and Orimo, {Shin ichi}",
note = "Funding Information: The authors would like to thank Y. Yamada, Prof. K. Suzuki, and Prof. R. Kanno (Tokyo Institute of Technology) for assistance in preparation and analysis of the LiNbO 3 buffer layer. The authors would also like to thank H. Ohmiya and N. Warifune (Tohoku University) for technical assistance. This work was supported by JSPS KAKENHI (Grant-in-Aid for Research Activity Start-up ( 17H06519 ), Grant-in-Aid for Early-Career Scientists ( 19K15666 ), and Grant-in-Aid for Scientific Research on Innovative Areas “Hydrogenomics” ( JP18H05513 )), the Collaborative Research Center on Energy Materials in IMR (E-IMR), and Advanced Target Project-4 of WPI-AIMR, Tohoku University. Funding Information: The authors would like to thank Y. Yamada, Prof. K. Suzuki, and Prof. R. Kanno (Tokyo Institute of Technology) for assistance in preparation and analysis of the LiNbO3 buffer layer. The authors would also like to thank H. Ohmiya and N. Warifune (Tohoku University) for technical assistance. This work was supported by JSPS KAKENHI (Grant-in-Aid for Research Activity Start-up (17H06519), Grant-in-Aid for Early-Career Scientists (19K15666), and Grant-in-Aid for Scientific Research on Innovative Areas ?Hydrogenomics? (JP18H05513)), the Collaborative Research Center on Energy Materials in IMR (E-IMR), and Advanced Target Project-4 of WPI-AIMR, Tohoku University. Publisher Copyright: {\textcopyright} 2019 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences",
year = "2020",
month = apr,
doi = "10.1016/j.jechem.2019.08.007",
language = "English",
volume = "43",
pages = "47--51",
journal = "Journal of Energy Chemistry",
issn = "2095-4956",
publisher = "Elsevier BV",
}