National University Corporation Okayama University December 25, 2021 (Reiwa 3) National University Corporation Okayama University https://www.okayama-u.ac.jp/ Overview National University Corporation Okayama The group led by Associate Professor Takashi Teranishi of the Faculty of Natural Sciences (Engineering) at the University (Headquarters: Kita-ku, Okayama City; President: Hiroshi Makino) is Kenichi Mimura of the Advanced Functional Materials Research Institute at the National Institute of Advanced Industrial Science and Technology. In collaboration with a group of principal investigators, by adding unique nano-sized cubic blocks to lithium-ion batteries, they succeeded in significantly shortening the charging and discharging times of conventional batteries. The research results were published in the online version of the German scientific journal "Advanced Materials Interfaces" on December 13, 2021, and were also used on the inside back cover of this journal. Lithium-ion batteries have become an indispensable device that supports modern social infrastructure. In particular, the accelerated spread of hybrid and electric vehicles has created a demand for the development of batteries that can be charged and discharged in a very short time. In this study, it was found that by adding an appropriate amount of nano-sized cubic block-shaped crystals that have the property of attracting lithium ions between the positive electrode material and the electrolyte of a lithium-ion battery, the rate of lithium ions in and out can be greatly increased. I was. Using a small coin cell, we conducted a rapid charge/discharge test for 3 minutes, and found that the battery with nanocubes had an electric capacity 4.3 times that of conventional batteries. We believe that this epoch-making research result will greatly contribute to the development of next-generation batteries capable of ultra-rapid charging and discharging in a few seconds for electric vehicles, which are becoming increasingly popular in the future. . How lithium ions move at high speed on the nanocube surface
◆A word from Associate Professor Takashi Teranishi I would be very happy if the results of this research lead to the development of next-generation batteries that enable ultra-rapid charging and discharging. Associate Professor Takashi Teranishi
Paper information Paper title: Ultrafast Ion Transport via Dielectric Nanocube Interface Paper: Advanced Materials Interfaces Authors: Takashi Teranishi, Ryoji Yamanaka, Ken-ichi Mimura, Mika Yoneda, Shinya Kondo, Kazumi Kato, and Akira Kishimoto DOI: 10.1002 /admi.202101682 URL: https://onlinelibrary.wiley.com/doi/full/10.1002/admi.202101682 ◆Detailed press release Nanocube blocks significantly reduce the charging and discharging time of lithium-ion batterieshttps://www .okayama-u.ac.jp/up_load_files/press_r3/press20211224-2.pdf See: Okayama University Faculty of Engineering https://www.engr.okayama-u.ac.jp/ Okayama University Graduate School of Science and Technology https ://www.gnst.okayama-u.ac.jp/・Inorganic Physical Chemistry Laboratory, Faculty of Engineering, Okayama University http://achem.okayama-u.ac.jp/int_chem/index.html ◆Contact information for this matter: Okayama University Faculty of Science, Associate Professor Takashi Teranishi 3-1-1 Tsushimanaka, Kita-ku, Okayama City, Okayama Prefecture 700-8530 Okayama University Tsushima Campus Engineering Building 1 A105 TEL: 086-251-8070 http://achem.okayama -u.ac.jp/int_chem/index.html Okayama University Research Promotion Organization Industry-Academia-Government Collaboration Headquarters 1-1-1 Tsushimanaka, Kita-ku, Okayama City, Okayama Prefecture 700-8530 Okayama University Tsushima Campus Main Building 1F TEL: 086-251-8463 E-mail: sangaku ◎okayama-u.ac.jp * Please replace ◎ with @ https://www.orsd.okayama-u.ac. jp/ Okayama University media "OTD" (app): https://prtimes.jp/main/html/rd/p/000000011.000072793.html Okayama University media "OTD" (web): https://prtimes.jp/main /html/rd/p/000000215.000072793.html Okayama University SDGs Homepage: https://sdgs.okayama-u.ac.jp/ Okayama University Image Movie (2020): https://youtu.be/pKMHm4XJLtw Industry-academia co-creation activities "Okayama University Open Innovation Challenge" Recruiting co-creation activity partners for December 2021: https://prtimes.jp/main/html/rd/p/000000374.000072793.html Okayama University "THE Impact Ranking 2021" Overall Ranking World Top Within 200th place, No. 1 domestically!! https://prtimes.jp/main/html/rd/p/000000070.000072793.html Okayama University "University Brand Image Survey 2021-2022" "Universities Active in SDGs" China · Shikoku No. 1!! https://prtimes.jp/main/html/rd/p/000000373.000072793.html Okayama University "University Image Survey 2022 from the Perspective of Company Personnel Managers" Ranked No. 1 in Chugoku and Shikoku!! https://prtimes.jp/main/html/rd/p/000000122.000072793.htmlNational University Corporation Okayama University supports the United Nations Sustainable Development Goals (SDGs). In addition, we have received the government's first "Japan SDGs Award" Special Award
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