Basic Information

Faculty

• Faculty of Engineering

Professional Memberships

• 日本セラミックス協会
• 電気化学会
• 日本化学会

Academic Degree

• 博士（工学）(九州大学)
• 修士（工学）(九州大学)

Research History

• From Apr. 2026, To Present

  Kyoto University, Graduate School of Engineering, 助教
• From Jan. 2022, To Mar. 2026

  Kyoto University, Office of Society-Academia Collaboration for Innovation, 特定助教
• From Apr. 2021, To Dec. 2021

  Kyushu University, Institute for Materials Chemistry and Engineering, 学術研究員

ID,URL

• ORCID ID

  0000-0003-1382-8803

• J-Global ID

  202201013682202829

researchmap URL

• https://researchmap.jp/sakamoto_2015

Research

Research Interests

• 電気化学
• 二次電池

Research Areas

• Nanotechnology/Materials, Energy chemistry
• Nanotechnology/Materials, Analytical chemistry
• Nanotechnology/Materials, Inorganic materials

Papers

• Effect of carbon supports and perovskite catalysts on the electrocatalytic behavior of composite catalysts for oxygen electrode reactions in alkaline media

  Jiayuan Ni; Yuto Miyahara; Ryo Sakamoto; Shota Tsujimoto; Kohei Miyazaki; Takeshi Abe

  Journal of Applied Electrochemistry, Sep. 2026

  Access this paper :

  
• Activity Descriptors and Design Principles for Mixed-Anion Layered Perovskites as Bifunctional Oxygen Electrocatalysts in Alkaline Media

  Yuto MIYAHARA; Motohiro IKEDA; Yuta INOUE; Ryo SAKAMOTO; Changhee LEE; Yasuyuki KONDO; Yuko YOKOYAMA; Kohei MIYAZAKI; Takeshi ABE

  Electrochemistry, 2026

  
• Understanding Separator Properties Governing Zincate Crossover in Rechargeable Alkaline Zn–MnO₂ Batteries

  Yimin LIN; Akari IWASAKI; Yuto MIYAHARA; Hirofumi TAKAMI; Yoshitatsu MISU; Kaori TAKANO; Tomomi NAGATSUKA; Koji MATSUOKA; Changhee LEE; Ryo SAKAMOTO; Shota TSUJIMOTO; Kohei MIYAZAKI; Takeshi ABE

  Electrochemistry, 2026

  
• Polarity Switching Effect on an Aqueous Symmetric Sodium-Ion Battery

  Kosuke NAKAMOTO; Hiroki BABA; Ryo SAKAMOTO; Akira NISHIO; Masato ITO; Shigeto OKADA

  Electrochemistry, 2026

  
• Improved thermal stability of ionic liquids through a hydrogen bond donor as an electrolyte for use in fluoride-ion batteries

  Kaviarasan Govindarajan; Ryo Sakamoto; Susumu Kukita; Reiji Takekawa; Yuto Miyahara; Kohei Miyazaki; Takeshi Abe

  Physical Chemistry Chemical Physics, 2025

  
• Room Temperature Operation of All‐Solid‐State Potassium‐Ion Battery Enabled by Unconventional Ionic Solid Electrolyte K6[Rh4Zn4(l‐cys)12O]·nH2O

  Ryo Sakamoto; Kosuke Nakamoto; Atsushi Inoishi; Masato Ito; Nobuto Yoshinari; Takumi Konno; Yukihiro Hara; Takafumi Fujii; Shigeto Okada

  Chemistry – An Asian Journal, Jun. 2025

  
• Synergistic Interplay between Fe‐Based Perovskite Oxides and Co in Electrolyte for Efficient Oxygen Evolution Reaction

  Yuta Inoue; Yuto Miyahara; Kohei Miyazaki; Changhee Lee; Ryo Sakamoto; Takeshi Abe

  ChemSusChem, Apr. 2025

  Access this paper :

  
• Erratum: Local structure of a highly concentrated NaClO4aqueous solution-type electrolyte for sodium ion batteries (Physical Chemistry Chemical Physics (2020) 22 (26452-26458) DOI: 10.1039/D0CP04376A)

  Ryo Sakamoto; Maho Yamashita; Kosuke Nakamoto; Yongquan Zhou; Nobuko Yoshimoto; Kenta Fujii; Toshio Yamaguchi; Ayuko Kitajou; Shigeto Okada

  Physical Chemistry Chemical Physics, 28 Apr. 2021

  
• Tracking activity behavior of oxygen evolution reaction on perovskite oxides in alkaline solution via 3-dimensional electrochemical impedance spectroscopy

  Yuta Inoue; Yuto Miyahara; Kohei Miyazaki; Changhee Lee; Ryo Sakamoto; Takeshi Abe

  Journal of Electroanalytical Chemistry, Jun. 2024

  
• In situ Electrolyte Design: Understanding the Prospects and Limitations of a High Capacity Ca(BH4)2 Anode for All Solid State Batteries

  Yixin Chen; Ryo Sakamoto; Atsushi Inoishi; Shigeto Okada; Hikari Sakaebe; Ken Albrecht; Duncan H. Gregory

  Batteries and Supercaps, 2024

  
• Kinetic Effect of Local pH on High-Voltage Aqueous Sodium-Ion Batteries

  Kosuke NAKAMOTO; Miu TANAKA; Ryo SAKAMOTO; Masato ITO; Shigeto OKADA

  Electrochemistry, 26 Jan. 2024

  
• A new strategy to exploit maximum rate performance for aqueous batteries through a judicious selection of MOF-type electrodes

  Kosuke Nakamoto; Junwen Bai; Minyan Zhao; Ryo Sakamoto; Liwei Zhao; Masato Ito; Shigeto Okada; Eiji Yamamoto; Haruno Murayama; Makoto Tokunaga

  RSC Advances, 2023

  
• Room-temperature Operation of All-solid-state Chloride-ion Battery with Perovskite-type CsSn_0.95Mn_0.05Cl₃ as a Solid Electrolyte

  Ryo SAKAMOTO; Nobuaki SHIRAI; Liwei ZHAO; Atsushi INOISHI; Hikari SAKAEBE; Shigeto OKADA

  Electrochemistry, 2023

  
• FeF3 as Reversible Cathode for All-Solid-State Fluoride Batteries

  Atsushi Inoishi; Naoko Setoguchi; Hironobu Hori; Eiichi Kobayashi; Ryo Sakamoto; Hikari Sakaebe; Shigeto Okada

  ADVANCED ENERGY AND SUSTAINABILITY RESEARCH, Dec. 2022

  
• Exploring the Sodium‐Storage Mechanism of Nanosized Disodium Rhodizonate as the Anode Active Material

  Zhiqiang Hao; Nikolay Dimov; Akira Nishio; Ryo Sakamoto; Shigeto Okada

  Advanced Sustainable Systems, 04 Feb. 2022, Peer-reviewed

  
• All‐Solid‐State Chloride‐Ion Battery with Inorganic Solid Electrolyte

  Ryo Sakamoto; Nobuaki Shirai; Atsushi Inoishi; Shigeto Okada

  ChemElectroChem, Dec. 2021

  
• A Trifluoroacetate-based Concentrated Electrolyte for Symmetrical Aqueous Sodium-ion Battery with NASICON-type Na₂VTi(PO₄)₃ Electrodes

  Kosuke NAKAMOTO; Ryo SAKAMOTO; Yuki NISHIMURA; Jingyu XIA; Masato ITO; Shigeto OKADA

  Electrochemistry, 05 Sep. 2021

  
• An All‐Solid‐State Bromide‐Ion Battery

  Atsushi Inoishi; Masahiro Hokazono; Eiko Kashiwazaki; Naoko Setoguchi; Takaaki Sakai; Ryo Sakamoto; Shigeto Okada

  ChemElectroChem, 04 Jan. 2021, Peer-reviewed

  
• Enhanced electrochemical performance of Li2.72Na0.31MnPO4CO3 as a cathode material in “water-in-salt” electrolytes

  Baowei Xie; Ryo Sakamoto; Ayuko Kitajou; Liwei Zhao; Kosuke Nakamoto; Shigeto Okada; Ken Albrecht; Wataru Kobayashi; Masaki Okada; Toshiya Takahara

  Chemical Communications, 2021

  
• The in situ formation of an electrolyte via the lithiation of Mg(BH4)2 in an all-solid-state lithium battery

  Hiroki Sato; Ryo Sakamoto; Hironari Minami; Hiroaki Izumi; Keiko Ideta; Atsushi Inoishi; Shigeto Okada

  Chemical Communications, 2021

  
• Cathode Properties of Na3FePO4CO3 Prepared by the Mechanical Ball Milling Method for Na-ion Batteries

  Baowei Xie; Ryo Sakamoto; Ayuko Kitajou; Kosuke Nakamoto; Liwei Zhao; Shigeto Okada; Yuki Fujita; Nobuto Oka; Tetsuaki Nishida; Wataru Kobayashi; Masaki Okada; Toshiya Takahara

  Scientific Reports, Dec. 2020, Peer-reviewed

  
• Local structure of a highly concentrated NaClO4 aqueous solution-type electrolyte for sodium ion batteries

  Ryo Sakamoto; Maho Yamashita; Kosuke Nakamoto; Yongquan Zhou; Nobuko Yoshimoto; Kenta Fujii; Toshio Yamaguchi; Ayuko Kitajou; Shigeto Okada

  Physical Chemistry Chemical Physics, 2020

  
• Cathode Properties of Na3MnPO4CO3 Prepared by the Mechanical Ball Milling Method for Na-Ion Batteries

  Baowei Xie; Ryo Sakamoto; Ayuko Kitajou; Kosuke Nakamoto; Liwei Zhao; Shigeto Okada; Wataru Kobayashi; Masaki Okada; Toshiya Takahara

  Energies, 28 Nov. 2019, Peer-reviewed

  
• 高電圧水系電池の確立を目指した濃厚水系電解液

  Zhou Yongquan

  Denki Kagaku, 05 Sep. 2019

  
• シリコンのブロモ化反応における鉄添加の影響

  友野和哲; 坂本遼; 槿優衣; 岡田雅広; 八幡侑馬

  廃棄物資源循環学会論文誌, Apr. 2019

  
• Over 2 V Aqueous Sodium‐Ion Battery with Prussian Blue‐Type Electrodes

  Kosuke Nakamoto; Ryo Sakamoto; Yuki Sawada; Masato Ito; Shigeto Okada

  Small Methods, Apr. 2019, Peer-reviewed

  
• Na2FePO4F Fluorophosphate as Positive Insertion Material for Aqueous Sodium-Ion Batteries

  Lalit Sharma; Kosuke Nakamoto; Ryo Sakamoto; Shigeto Okada; Prabeer Barpanda

  ChemElectroChem, 18 Jan. 2019, Peer-reviewed

  
• Cathode Properties of Sodium Manganese Hexacyanoferrate in Aqueous Electrolyte

  Kosuke Nakamoto; Ryo Sakamoto; Ayuko Kitajou; Masato Ito; Shigeto Okada

  Evergreen, Mar. 2017, Peer-reviewed

  
• Effect of Concentrated Electrolyte on Aqueous Sodium-ion Battery with Sodium Manganese Hexacyanoferrate Cathode

  Kosuke NAKAMOTO; Ryo SAKAMOTO; Masato ITO; Ayuko KITAJOU; Shigeto OKADA

  Electrochemistry, 2017, Peer-reviewed

  
• High capacity all-solid-state lithium battery enabled by in situ formation of an ionic conduction path by lithiation of MgH2

  Atsushi Inoishi; Hiroki Sato; Yixin Chen; Hikaru Saito; Ryo Sakamoto; Hikari Sakaebe; Shigeto Okada

  RSC Advances, Mar. 2022, Peer-reviewed

  

Misc.

• All-Solid-State Fluoride-Shuttle Cell with FeF₃ Cathode

  猪石篤; 瀬戸口奈緒子; 坂本遼; 堀博伸; 栄部比夏里; 栄部比夏里; 岡田重人

  電池討論会講演要旨集(CD-ROM), 2021

  
• Room Temperature All-Solid-State Chloride-Ion Batteries Using CsSnCl₃-based Electrolyte

  猪石篤; 坂本遼; ZHAO Minyan; ALBRECHT Ken; 栄部比夏里; 岡田重人

  電気化学会大会講演要旨集(CD-ROM), 2022

  
• Charge-discharge performance of solid electrolyte in-situ forming anode dependence on the electrode thickness

  CHEN Yixin; 坂本遼; 猪石篤; 岡田重人; ALBRECHT Ken; 栄部比夏里

  電池討論会PDF要旨集(CD-ROM), 2022

  
• Large-capacity all-solid-state lithium battery using an in-situ formation of solid electrolyte from magnesium halide anode

  猪石篤; 陶山美幸; CHEN Yixin; 坂本遼; ALBRECHT Ken; 岡田重人; 栄部比夏里

  電池討論会PDF要旨集(CD-ROM), 2022

  
• High capacity all-solid-state battery enabled by In Situ Formation of ionic conductor by lithiation of magnesium halide

  猪石篤; 陶山美幸; CHEN Yixin; 坂本遼; ALBRECHT Ken; 岡田重人; 栄部比夏里

  電気化学秋季大会講演要旨集(Web), 2022

  
• In-situ Forming of Electrolyte on Lithiation Process from Hydride-based Anode

  猪石篤; CHEN Yixin; 佐藤寛基; 坂本遼; 泉博章; 南浩成; 栄部比夏里; 岡田重人

  電池討論会PDF要旨集(CD-ROM), 2021

  
• Development of Fluorite-type SrCl₂-based Solid Electrolyte for High-voltage Operation of All-solid-state Chloride-ion Battery

  ZHAO Minyan; 坂本遼; 猪石篤; 栄部比夏里; 岡田重人

  電池討論会PDF要旨集(CD-ROM), 2021

  
• In-situ Formation of Solid Electrolyte via Lithiation Process of Ca(BH₄)₂

  CHEN Yixin; 坂本遼; 猪石篤; 栄部比夏里; 岡田重人

  電池討論会PDF要旨集(CD-ROM), 2021

  
• All-Solid-State Halide Batteries based on Chloride Shuttle and Bromide Shuttle

  猪石篤; 坂本遼; 瀬戸口奈緒子; ZHAO Minyan; ALBRECHT Ken; 栄部比夏里; 岡田重人

  電池討論会PDF要旨集(CD-ROM), 2021

  
• Room temperature operation of all-solid-state chloride ion battery with perovskite-type high chloride ion conductor

  白井暢明; 坂本遼; 猪石篤; 岡田重人

  電池討論会PDF要旨集(CD-ROM), 2020

  

External funds: Kakenhi

• 柔粘性イオン結晶の精密分子設計による高性能な固体電解質の開発

  Grant-in-Aid for Early-Career Scientists

  Basic Section 35030:Organic functional materials-related

  Kyoto University

  坂本 遼

  From 01 Apr. 2026, To 31 Mar. 2029, Granted

  固体電解質;柔粘性イオン結晶;塩化物イオン電池

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-26K17919/