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K

Kei Kubota

National Institute for Materials Science

51H-index
244Paper Count
2.1WCitation Count
Published Papers 115
Publication Date
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Modulating Redox Pathways in Manganese-Based Disordered Rocksalt Cathodes via Molybdenum Incorporation
errChemistry of Materials
IF7
err2026-05-29
err0
errOAAI
errMarcela Calpa; Randy Jalem; Taiga Ozawa; Minako Nishioka; Anna Myojin; Gen Hasegawa; Naoaki Kuwata; Shoichi Matsuda; Kei Kubota; Kazunori Takada
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Defect Electrochemistry in Stabilizing Corrugated Layered NaMnO2
errJournal of the American Chemical Society
IF15.6
err2026-01-29
err0
errOAAI
errShinichi Kumakura; Yusuke Miura; Kei Kubota; Ryoichi Tatara; Eun Jeong Kim; Huu Duc Luong; Yoshitaka Tateyama; Yoshinobu Miyazaki; Tomohiro Saito; Shinichi Komaba
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Revisiting the ion dynamics in LixCoO2 and NaxCoO2
errChem. Sci.
IF7.4
err2025-09-30
err0
errOAAI
errRyoichi Tatara †; Daisuke Igarashi; Masanobu Nakayama; Tomooki Hosaka; Kazuki Ohishi; Izumi Umegaki; Jumpei G. Nakamura; Akihiro Koda; Hiroto Ohta; Rasmus Palm; Martin Månsson; Eun Jeong Kim; Kei Kubota; Jun Sugiyama; Shinichi Komaba
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Unique Impacts of Scandium Doping on Electrode Performance of P'2-and P2-type Na2/3MnO2
errADVANCED MATERIALS
IF26.8
err2025-09-01
err0
errOAAI
errMoriya, Kodai; Kumakura, Shinichi; Kim, Eun Jeong; Miura, Yusuke; Kubota, Kei; Tatara, Ryoichi; Komaba, Shinichi
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Synthesis and Electrochemistry of Stacking Fault-Free β-NaMnO2
errAdvanced Materials
IF26.8
err2025-07-14
err0
errOAAI
errShinichi Kumakura; Kei Kubota; Syuhei Sato; Yusuke Miura; Huu Duc Luong; Eun Jeong Kim; Yoshinobu Miyazaki; Tomohiro Saito; Yoshitaka Tateyama; Shinichi Komaba
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A Sodium-Ion Battery with the Diglyme Electrolyte: Graphite || Alumina-Coated Na5/6[Ni1/3Mn1/6Fe1/6Ti1/3]O2 Cell
errChemistry of Materials
IF7
err2025-07-03
err0
errOAAI
errHayato Maejima; Tomooki Hosaka; Ryoichi Tatara; Kei Kubota; Yusuke Tokita; Mustafa Goktas; Philipp Adelhelm; Shinichi Komaba
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Effect of Fluorine Doping on the Electrochemistry and Structural Stability of Single-Particle LiNiO2
errChemSusChem
IF6.6
err2025-06-03
err0
PREAI
errElhoucine ELmaataouy; Majid EL Kassaoui; Mohamed ELmouhinni; Kei Kubota; Abdlewahed Chari; Mohamed Aqil; Adil Sghiouri; Jones Alami
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The role of grain boundaries in suppressing particle fracture in Li-rich layered oxide cathode materials
errJOURNAL OF POWER SOURCES
IF7.9
err2025-04-01
err0
PREAI
errCalpa, Marcela; Kubota, Kei; Saengkaew, Jittraporn; Matsuda, Shoichi; Takada, Kazunori
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Na5/6[Ni1/3Mn1/6Fe1/6Ti1/3]O2 as an Optimized O3-Type Layered Oxide Positive Electrode Material for Sodium-Ion Batteries
errINORGANIC CHEMISTRY
IF4.7
err2024-11-26
err1
errOAAI
errHashimoto, Koichi; Kubota, Kei; Tatara, Ryoichi; Hosaka, Tomooki; Komaba, Shinichi
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Layer-Type AxRhO2 (A = Li, Na, K, Rb, Cs) and KxMO2 (M = Co, Rh, Ir) Electrodes: Structure and Electrochemistry
errJOURNAL OF THE ELECTROCHEMICAL SOCIETY
IF3.3
err2024-04-01
err1
PREAI
errKim, Eun Jeong; Hirayama, Takumi; Moriya, Kodai; Hosaka, Tomooki; Kubota, Kei; Tatara, Ryoichi; Komaba, Shinichi
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Application of Na2CO3 as a Sacrificial Electrode Additive in Na-ion Batteries to Compensate for the Sodium Deficiency in Na2/3[Fe1/2Mn1/2]O2
errBATTERIES & SUPERCAPS
IF4.7
err2024-03-12
err1
errOAAI
errMatsuzaki, Masayoshi; Tatara, Ryoichi; Kubota, Kei; Kuroki, Kazutoshi; Hosaka, Tomooki; Umetsu, Kazuteru; Okada, Nobuhiro; Komaba, Shinichi
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Effects of Particle Size and Polytype on the Redox Reversibility of the Layered Na0.76Ni0.38Mn0.62O2 Electrode
errACS APPLIED ENERGY MATERIALS
IF5.5
err2024-02-01
err6
errOAAI
errKim, Eun Jeong; Tatara, Ryoichi; Hosaka, Tomooki; Kubota, Kei; Kumakura, Shinichi; Komaba, Shinichi
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New Template Synthesis of Anomalously Large Capacity Hard Carbon for Na- and K-Ion Batteries
errADVANCED ENERGY MATERIALS
IF26
err2023-11-09
err31
errOAAI
errIgarashi, Daisuke; Tanaka, Yoko; Kubota, Kei; Tatara, Ryoichi; Maejima, Hayato; Hosaka, Tomooki; Komaba, Shinichi
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Voltage hysteresis hidden in an asymmetric reaction pathway
errENERGY STORAGE MATERIALS
IF20.2
err2023-11-01
err0
PREAI
errCalpa, Marcela; Kubota, Kei; Mizuki, Emiko; Ono, Manai; Matsuda, Shoichi; Takada, Kazunori
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Impact of Ti and Zn Dual-Substitution in P2 Type Na2/3Ni1/3Mn2/3O2 on Ni-Mn and Na-Vacancy Ordering and Electrochemical Properties
errADVANCED MATERIALS
IF26.8
err2023-05-13
err53
errOAAI
errKubota, Kei; Asari, Takuya; Komaba, Shinichi
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Application of P2-Na2/3Ni1/3Mn2/3O2 Electrode to All-Solid-State 3 V Sodium(-Ion) Polymer Batteries
errJOURNAL OF PHYSICAL CHEMISTRY C
IF3.2
err2022-11-28
err6
errOAAI
errTatara, Ryoichi; Suzuki, Hosei; Hamada, Mizuki; Kubota, Kei; Kumakura, Shinichi; Komaba, Shinichi
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Origin of enhanced capacity retention of aqueous potassium-ion batteries using monohydrate-melt electrolyte
errJOURNAL OF POWER SOURCES
IF7.9
err2022-11-01
err5
errOAAI
errHosaka, Tomooki; Takahashi, Rie; Kubota, Kei; Tatara, Ryoichi; Matsuda, Yuki; Ida, Kazuhiko; Kuba, Kanji; Komaba, Shinichi
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Effect of Cu Substitution in P′2-and P2-Type Sodium Manganese- Based Oxides
errACS APPLIED ENERGY MATERIALS
IF5.5
err2022-10-13
err8
errOAAI
errKim, Eun Jeong; Hosaka, Tomooki; Kubota, Kei; Tatara, Ryoichi; Kumakura, Shinichi; Komaba, Shinichi
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All-Solid-State Potassium Polymer Batteries Enabled by the Effective Pretreatment of Potassium Metal
errACS ENERGY LETTERS
IF18.2
err2022-06-08
err26
errOAAI
errHamada, Mizuki; Tatara, Ryoichi; Kubota, Kei; Kumakura, Shinichi; Komaba, Shinichi
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Superconcentrated NaFSA-KFSA Aqueous Electrolytes for 2 V-Class Dual-Ion Batteries
errACS APPLIED MATERIALS & INTERFACES
IF8.2
err2022-05-10
err11
errOAAI
errHosaka, Tomooki; Noda, Ayumi; Kubota, Kei; Chiguchi, Kento; Matsuda, Yuki; Ida, Kazuhiko; Yasuno, Satoshi; Komaba, Shinichi
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Research Directions

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Co-authors
Cooperation Journals
S
Stefano Passerini
H-index: 134 · Papers: 1.2K
H
Hubert A. Gasteiger
H-index: 118 · Papers: 712
Y
Yoshihiro Ogawa
H-index: 116 · Papers: 1.4K
S
Shinichi Komaba
H-index: 90 · Papers: 509
T
Teófilo Rojo
H-index: 87 · Papers: 805
View more