Basic Information

Faculty

• Faculty of Engineering

Email Address

• Email Address

  nishioka.kiho.2hkyoto-u.ac.jp

Professional Memberships

• The Electrochemical Society
• The Surface Finishing Society of Japan
• The Mining and Materials Processing Institute of Japan (MMIJ)
• The electrochemical society of Japan

Academic Degree

• 25 Mar. 2020

  Master (Engineering, Osaka University)
• 22 Sep. 2022

  PhD (Science, Osaka University)

Academic Resume (Undergraduate School/Majors)

• 大阪大学, 基礎工学部化学応用科学科, 卒業

High School

• High School

  Ehime Prefectural Mishima High School

Research History

• From Oct. 2024, To Present

  Osaka University, Graduate School of Engineering Science, Visiting Researcher
• From Mar. 2023, To Present

  Kyoto University, Graduate School of Engineering Deprtment of Materical Science and Engineering, Assistant professor
• From Oct. 2022, To Feb. 2023

  Japan Society for the Promotion of Science, Research Fellowship for Young Scientists (PD)
• From Sep. 2022, To Dec. 2022

  Justus-Liebig-University Giessen, Physical Chemistry Institute
• From Apr. 2020, To Sep. 2022

  Japan Society for the Promotion of Science, Research Fellowship for Young Scientists (DC1)

ID,URL

• ORCID ID

  0000-0003-4115-1334

• J-Global ID

  202301006363792037

• Researcher ID

  AAD-6204-2022

• External link

  http://www.echem.mtl.kyoto-u.ac.jp/index.html

researchmap URL

• https://researchmap.jp/kiho_nishioka

Research

Research Interests

• Electrochemistry
• Secondary batteries

Papers

• Geometrically Defined Nanochannels Resolve the Interplay of Mass Transport and Product Deposition in Lithium–Oxygen Batteries

  Kiho Nishioka; Keisuke Sakaida; Mikiya Tsujinaka; Kuniaki Murase

  Nano Letters, 03 Sep. 2026

  
• Chromium Electrodeposition from Hydrate Melts:Formation of Metastable δ-Cr Phase in Conjunction with Hydrogen Incorporation

  Haruki Katori; Timo Weintraut; Steffen Schröder; Till Fuchs; Anja Henss; Kiho Nishioka; Kuniaki Murase

  Journal of The Electrochemical Society, 04 Aug. 2026

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• 

  Structure–Stability Relationships in Sulfonamide Electrolyte Solvents for Lithium–Oxygen Batteries: Limited Impact of α-Hydrogen and Dominant Role of Alkyl Chain Decomposition

  Kiho NISHIOKA; Mikiya TSUJINAKA; Nanako ISHIHARA; Hayato FUJIMOTO; Mamoru TOBISU; Shuji NAKANISHI

  Electrochemistry, Jul. 2026, Lead author, Corresponding author

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• Electrolyte Effects on the Deposition Location of Discharge Products beyond Conductive Substrates in Lithium−Oxygen Batteries

  Mikiya Tsujinaka; Keisuke Sakaida; Kiho Nishioka; Kuniaki Murase

  ACS Electrochemistry, 25 Jun. 2026, Corresponding author

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• 

  Oxidative Decomposition of Off‐Cathode Discharge Deposits During Charging in Li–O2 Secondary Batteries

  Terumi Goto; Pierre Luca Stigliano; Ken Kurashima; Hayato Tsurugi; Nanako Ishihara; Timo Weintraut; Steffen Schröder; Anja Henss; Shuji Nakanishi; Kiho Nishioka

  ChemistryEurope, May 2026, Last author, Corresponding author

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• Phosphate buffer-induced depletion of nickel redox sites limits oxygen evolution on stainless steel anodes

  Kiho Nishioka; Sakino Hiro; Kuniaki Murase

  Journal of Materials Chemistry A, 2026

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• Highly Efficient Trivalent Chromium Electroplating Enabled by the Hydrogen Isotope Effect

  Haruki Katori; Kiho Nishioka; Kuniaki Murase

  ACS Applied Materials & Interfaces, 29 Apr. 2026

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• A Novel Trivalent Chrome Plating Using Hydrate-Melt Based Baths: Microstructure and Hydrogen Content of Resulting Hard Chromium Layers

  Haruki Katori; Kiho Nishioka; Kazuhiro Fukami; Kuniaki Murase

  ECS Meeting Abstracts, 11 Jul. 2025

  
• Long-Lasting Plateaus of Low-Charging Voltage in Lithium-Oxygen Batteries Enabled by Fluorinated Amide-Based Electrolytes

  Kiho Nishioka; Shuji Nakanishi

  ECS Meeting Abstracts, 11 Jul. 2025

  
• Potential-Dependent Dissolution of Li2O2 During Discharge in Li–O2 Secondary Batteries with Amide-Based Electrolytes

  Terumi Goto; Ken Kurashima; Kiho Nishioka; Yoko Hase; Yoshiharu Mukouyama; Kazuyuki Iwase; Shuji Nakanishi

  ACS Applied Energy Materials, 10 Jul. 2025

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• Effect of Ce(III) Additives on Positive Electrode Reactions in Li–O2 Secondary Batteries: Overvoltage Reduction and Mechanistic Divergence

  Ken Kurashima; Terumi Goto; Ryo Okada; Kiho Nishioka; Yoko Hase; Yoshiharu Mukouyama; Hayato Tsurugi; Shuji Nakanishi

  ACS Applied Energy Materials, 28 May 2025

  
• 

  Copper (II)–Lactate Complexes in Cu2O Electrodeposition Baths: Stability of the Complexes and Aging of the Baths

  Kiho Nishioka; Mahiro Okada; Ryo Kanzaki; Kazuhiro Fukami; Kuniaki Murase

  Journal of The Electrochemical Society, 19 Mar. 2025

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• Expanding the Design Flexibility of Electrolyte Solvents for Li–O2 Secondary Batteries by Incorporating Fluorine Groups

  Kiho Nishioka; Hayato Fujimoto; Mamoru Tobisu; Shuji Nakanishi

  ACS Applied Energy Materials, 20 Nov. 2024, Lead author, Corresponding author

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• Fluorinated Amide-Based Electrolytes Induce a Sustained Low-Charging Voltage Plateau under Conditions Verifying the Feasibility of Achieving 500 Wh kg^–1 Class Li–O₂ Batteries

  Kiho Nishioka; Mizuki Tanaka; Terumi Goto; Ronja Haas; Anja Henss; Shota Azuma; Morihiro Saito; Shoichi Matsuda; Wei Yu; Hirotomo Nishihara; Hayato Fujimoto; Mamoru Tobisu; Yoshiharu Mukouyama; Shuji Nakanishi

  ACS Applied Materials & Interfaces, 22 Aug. 2024, Lead author

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• True Location of Insulating Byproducts in Discharge Deposits in Li–O2 Batteries

  Kiho Nishioka; Timo Weintraut; Steffen Schröder; Anja Henss; Shuji Nakanishi

  ACS Applied Energy Materials, 02 Apr. 2024, Lead author

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• Edge‐Site‐Free and Topological‐Defect‐Rich Carbon Cathode for High‐Performance Lithium‐Oxygen Batteries

  Wei Yu; Takeharu Yoshii; Alex Aziz; Rui Tang; Zheng‐Ze Pan; Kazutoshi Inoue; Motoko Kotani; Hideki Tanaka; Eva Scholtzová; Daniel Tunega; Yuta Nishina; Kiho Nishioka; Shuji Nakanishi; Yi Zhou; Osamu Terasaki; Hirotomo Nishihara

  Advanced Science, 07 Apr. 2023

  
• Potential Dependences of Discharge Characteristics of Li-O2 Batteries with Various Electrolytes

  Kiho Nishioka; Kota Morimoto; Takayoshi Kusumoto; Juntaro Seki; Yoko Hase; Shuji Nakanishi

  ECS Meeting Abstracts, 01 May 2019, Peer-reviewed

  
• N, N-Dimethylethanesulfonamide as an Electrolyte Solvent Stable for the Positive Electrode Reaction of Aprotic Li-O2 Batteries

  Kiho Nishioka; Morihiro Saito; Manai Ono; Shoichi Matsuda; Shuji Nakanishi

  ACS Applied Energy Materials, Apr. 2022, Lead author

  
• Overlooked Factors Required for Electrolyte Solvents in Li–O 2 Batteries: Capabilities of Quenching 1 O 2 and Forming Highly‐Decomposable Li 2 O 2

  Kiho Nishioka; Mizuki Tanaka; Hayato Fujimoto; Toru Amaya; Sensuke Ogoshi; Mamoru Tobisu; Shuji Nakanishi

  Angewandte Chemie, 14 Mar. 2022, Peer-reviewed

  
• Overlooked Factors Required for Electrolyte Solvents in Li–O2 Batteries: Capabilities of Quenching ¹O2 and Forming Highly-Decomposable Li2O2

  Kiho Nishioka; Mizuki Tanaka; Hayato Fujimoto; Toru Amaya; Sensuke Ogoshi; Mamoru Tobisu; Shuji Nakanishi

  Angewandte Chemie - International Edition, 14 Mar. 2022, Lead author

  
• Macroscopically uniform and flat lithium thin film formed by electrodeposition using multicomponent additives

  Kazuhiro Fukami; Akihiro Sakurai; Takamitsu Tsujimoto; Masaki Yamagami; Atsushi Kitada; Kota Morimoto; Kiho Nishioka; Shuji Nakanishi; Yusuke Yoshikane; Toshimitsu Nagao; Jun ichi Katayama; Kuniaki Murase

  Electrochemistry Communications, Mar. 2022

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• Positive Feedback Mechanism to Increase the Charging Voltage of Li–O2 Batteries

  Yoko Hase; Takeshi Uyama; Kiho Nishioka; Juntaro Seki; Kota Morimoto; Nobuhiro Ogihara; Yoshiharu Mukouyama; Shuji Nakanishi

  Journal of the American Chemical Society, 26 Jan. 2022

  
• Isotopic Depth Profiling of Discharge Products Identifies Reactive Interfaces in an Aprotic Li-O2Battery with a Redox Mediator

  Kiho Nishioka; Kota Morimoto; Takayoshi Kusumoto; Takashi Harada; Kazuhide Kamiya; Yoshiharu Mukouyama; Shuji Nakanishi

  Journal of the American Chemical Society, 19 May 2021, Lead author

  
• Dynamic Changes in Charge Transfer Resistances during Cycling of Aprotic Li-O2Batteries

  Kota Morimoto; Takayoshi Kusumoto; Kiho Nishioka; Kazuhide Kamiya; Yoshiharu Mukouyama; Shuji Nakanishi

  ACS Applied Materials and Interfaces, 23 Sep. 2020

  
• Synergistic Effect of Binary Electrolyte on Enhancement of the Energy Density in Li-O2Batteries

  Yoko Hase; Kiho Nishioka; Yasuhiro Komori; Takayoshi Kusumoto; Juntaro Seki; Kazuhide Kamiya; Shuji Nakanishi

  Journal of Physical Chemistry Letters, 17 Sep. 2020

  
• High-throughput combinatorial screening of multi-component electrolyte additives to improve the performance of Li metal secondary batteries

  Shoichi Matsuda; Kiho Nishioka; Shuji Nakanishi

  Scientific Reports, 01 Dec. 2019

  
• Expansion of the potential region for sustained discharge of non-aqueous Li-O2 batteries using an oxygen-enriched carbon cathode

  Kiho Nishioka; Kota Morimoto; Takayoshi Kusumoto; Takashi Harada; Yoko Hase; Kazuhide Kamiya; Shuji Nakanishi

  Chemistry Letters, 2019, Lead author

  

Misc.

• 研究室紹介 京都大学 大学院工学研究科 材料工学専攻 材質制御学分野

  水素エネルギーシステム, Dec. 2025, Lead author

  
• The Reductive Formation and Oxidative Decomposition of Solid-State Discharge Products in Lithium–Oxygen Secondary Batteries

  Kiho NISHIOKA; Shuji NAKANISHI

  Vacuum and Surface Science, 10 Jul. 2024, Lead author

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• Challenges in Research on Lithium-Oxygen Secondary Batteries

  Kiho NISHIOKA

  Denki Kagaku, 05 Jun. 2024, Lead author

  
• 非水系リチウム酸素電池の実用化へ向けた課題と対応策

  西岡 季穂; 中西 周次

  ポストリチウムイオン二次電池開発 ～部材開発から解析・性能診断技術まで～, Jul. 2023, Lead author

  
• Recent Trends on the Studies of Lithium-Oxygen Secondary Batteries

  西岡季穂; 中西周次

  機能材料, Dec. 2022, Lead author

  
• リチウム-酸素電池の研究開発の動向と展望

  西岡季穂; 中西周次

  工業材料, May 2022, Lead author

  
• リチウム酸素二次電池の電極界面化学

  長谷陽子; 西岡季穂; 中西周次

  工業材料, Apr. 2020

  

Presentations

• リチウム酸素電池の電解液による易分解性の固体放電生成物の形成

  西岡季穂

  第4回溶液化学研究会 若手の会講演会, 10 Dec. 2024, Invited

  
• Identification of the Accurate Location of Insulating Byproducts in Discharge Deposits in Lithium-Oxygen Batteries

  IPS-24/ICARP2024, 01 Aug. 2024, Invited

  
• The Mitigation of Charging Overvoltages in Lithium-Oxygen Batteries Equipped with Amide-Based Electrolytes

  Kiho Nishioka

  2023 ICGET-Tw, 28 Oct. 2023, Invited

  

Awards

• 21 Jun. 2024

  Best Poster Award
• 24 Mar. 2021

  第88回優秀学生講演賞（電気化学会）
• 17 Mar. 2022

  第89回優秀学生講演賞（電気化学会）
• 22 Jun. 2020

  大阪大学女子大学院生優秀研究賞

External funds: Kakenhi

• リチウム酸素電池の高効率化：反応の熱力学的解析に基づく放電生成物の制御

  Grant-in-Aid for Scientific Research (B)

  Basic Section 36020:Energy-related chemistry

  Kyoto University

  西岡 季穂

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

  リチウム空気電池;二次電池;リチウム酸素電池;電解液;熱力学

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-26K01603/
• Establishment of Electrolyte Design Guidelines for Solid Electrolyte Interphase Formation in High-Capacity Next-Generation Secondary Batteries

  Grant-in-Aid for Research Activity Start-up

  0502:Inorganic/coordination chemistry, analytical chemistry, inorganic materials chemistry, energy-related chemistry, and related fields

  Kyoto University

  Kiho Nishioka

  From 31 Aug. 2023, To 31 Mar. 2025, Project Closed

  二次電池;リチウム;電解液;次世代二次電池;SEI;負極

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23K19269/
• リチウム酸素電池の性能向上に向けた充電過電圧の支配的要因の特定

  Grant-in-Aid for Early-Career Scientists

  Basic Section 36020:Energy-related chemistry

  Kyoto University

  西岡 季穂

  From 01 Apr. 2024, To 31 Mar. 2026, Granted

  過酸化リチウム;二次電池;リチウム;電解液;リチウム酸素電池;リチウム空気電池;形状制御;次世代二次電池

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24K17771/

Education

Teaching subject(s)

• From 01 Apr. 2025, To 31 Mar. 2026

  Practice of Basic Informatics (Faculty of Engineering)

  T006, Spring, Institute for Liberal Arts and Sciences, 2
• From 01 Apr. 2024, To 31 Mar. 2025

  Fundamental Chemical Experiments

  N308, Spring, Institute for Liberal Arts and Sciences, 2