発表論文

以下には主に岡田・栄部・猪石の電池関連の発表論文を載せています。

アルブレヒトグループの業績はこちら

2021

1. "Cathode properties of FeF3–V2O5 Glass/C for lithium-ion batteries", Ayuko Kitajou, Masahiro Hokazono, Noboru Taguchi, Shingo Tanaka, Shigeto Okada, J. Alloys Compd., 856, 157449.

2. "An All‐Solid‐State Bromide‐Ion Battery", Atsushi Inoishi, Masahiro Hokazono, Eiko Kashiwazaki, Naoko Setoguchi, Takaaki Sakai, Ryo Sakamoto, Shigeto Okada, ChemElectroChem, 8 (1), pp. 246-249.

3. "Stabilized phase transition process of layered naxcoo2 via ca-substitution", Hirona Hasegawa, Yuji Ishado, Shigeto Okada, Minoru Mizuhata, Hideshi Maki, Masaki Matsui, J. Electrochem. Soc., 168, 010509.

4. "Effect of Na3BO3 Addition into Na3V2(PO4)3 Single-Phase All-Solid-State Batteries", Akira Nishio, Nobuaki Shirai, Hironari Minami, Hiroaki Izumi, Atsushi Inoishi, Shigeto Okada, Electrochemistry, 89 (3), pp. 244-249.

5. "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, Chem. Commun., 57, pp. 2605-2608. (Front Cover)

6. "Enhanced high voltage performance of LiNi0.5Mn0.3Co0.2O2 cathode via the synergistic effect of LiPO2F2 and FEC in fluorinated electrolyte for lithium-ion batteries", Rui Li, Pan Zhang, Jian Huang, Boyu Liu, Mingjiong Zhou, Bizheng Wen, Yu Luo, Shigeto Okada, RSC Adv., 11, pp. 7886-7895.

7. "Flexible poly(vinylidene fluoride-co-hexafluoropropylene)-based gel polymer electrolyte for high-performance lithium-ion batteries", Pan Zhang, Rui Li, Jian Huang, Boyu Liu, Mingjiong Zhou, Bizheng Wen, Yonggao Xia, Shigeto Okada, RSC Adv., 11, pp. 11943-11951.

8. "Composition manipulation of bis(fluorosulfonyl)imide-based ionic liquid electrolyte for high-voltage graphite//LiNi0.5Mn1.5O4 lithium-ion batteries", Purna Chandra Rath, Yi-Wun Wang, Jagabandhu Patra, Bharath Umesh, Ting-Ju Yeh, Shigeto Okada, Ju Li, Jeng-Kuei Chang, Chem. Eng. J., 415, 128904.

9. "Tin phosphide-carbon composite as a high-performance anode active material for sodium-ion batteries with high energy density", Zhiqiang Hao, Nikolay Dimov, Jeng-Kuei Chang, Shigeto Okada, J. Energy Chem., in press.

10. "Synthesis of bimetallic sulfide FeCoS4@carbon nanotube graphene hybrid as a high-performance anode material for sodium-ion batteries", Zhiqiang Hao, Nikolay Dimov, Jeng-Kuei Chang, Shigeto Okada, Chem. Eng. J., in press.


2020

1. "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, Sci. Rep., 10, 3278.

2. "Physicochemical and electrochemical properties of sulfolane – Carbonate electrolytes for sodium-ion conduction", Duy Thanh Vo, An Le Bao Phan, T. B. Tran, Van Hoang Nguyen, Thuong Tien Le, Akhil Garg, Shigeto Okada, Phung My Loan Le, J. Mol. Liq., 307, 112982.

3. "Improved Electrochemical Properties of LiCoO2 via Ni, Mn Co-doping from LiNi0.8Co0.1Mn0.1O2 for Rechargeable Lithium-ion Batteries", Baocheng Pang, Jian Huang, Jiawen Ge, Yulin Luo, Mingjiong Zhou, Yu Luo, Shigeto Okada, Electrochemistry, 88 (4), pp. 295-299.

4. "An experimental and first-principle investigation of the Ca-substitution effect on P3-type layered NaxCoO2", Yuji Ishado, Hirona Hasegawa, Shigeto Okada, Minoru Mizuhata, Hideshi Maki, Masaki Matsui, Chem. Commun., 56, pp. 8107-8110.

5. "Suppression of O-redox reactions by multivalent Cr in Li-excess Li2.4M0.8M'0.8O4 (M, M’ = Cr, Mn, and Ti) cathodes with layered and cation-disordered rock-salt structures", Motoyuki Hamaguchi, Hiroyoshi Momida, Ayuko Kitajou, Shigeto Okada, Tamio Oguchi, Electrochim. Acta, 354, 136630.

6. "Exploring Factors Limiting Three-Na+ Extraction from Na3V2(PO4)3", Yuji Ishado, Atsushi Inoishi, Shigeto Okada, Electrochemistry, 88 (5), pp. 457-462.

7. "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, Phys. Chem. Chem. Phys., 22, pp. 26452-26458.

2019

1. "Effect of Li3BO3 addition to NASICON-type single-phase all-solid-state lithium battery based on Li1.5Cr0.5Ti1.5(PO4)3", Akira Nishio, Atsushi Inoishi, Ayuko Kitajou, Shigeto Okada, J. Ceram. Soc. Japan, 127 (1), pp. 18-21.

2. "Na2FePO4F Fluorophosphate as Positive Insertion Material for Aqueous Sodium-Ion Batteries", Lalit Sharma, Kosuke Nakamoto, Ryo Sakamoto, Shigeto Okada, Prabeer Barpanda, ChemElectroChem, 6 (2), pp. 444-449.

3. "Sodium ion conducting gel polymer electrolyte using poly(vinylidene fluoride hexafluoropropylene)", Duy Thanh Vo, Hoang Nguyen Do, Thien Trung Nguyen, Thi Tuyet Hanh Nguyen, Van Man Tran, Shigeto Okada, My Loan Phung Le,Mater. Sci. Eng. B Solid State Mater. Adv. Technol., 241, pp. 27-35.

4. "Electrochemical properties of titanium fluoride with high rate capability for lithium-ion batteries", Ayuko Kitajou, Katsuya Eguchi, Yuji Ishado, Hiroyuki Setoyama, Toshihiro Okajima, Shigeto Okada, J. Power Sources, 419, pp. 1-5.

5. "Suppression mechanism for dissolution of Conversion-Type CuCl2 Electrode in LiPF6 /methyl difluoroacetate electrolyte", Katsuo Hashizaki, Shinsaku Dobashi, Shigeto Okada, Toshiro Hirai, Jun-ichi Yamaki, Zempachi Ogumi, J. Electrochem. Soc., 166 (4), pp. A568-A573.

6. "Charge-Discharge Characteristics of Li/CuCl2 Batteries with LiPF6/Methyl Difluoroacetate Electrolyte", Katsuo Hashizaki, Shinsaku Dobashi, Shigeto Okada, Toshiro Hirai, Jun-ichi Yamaki, Zempachi Ogumi, Evergreen, 6 (1), pp. 1-8.

7. "First‐Principles Study of Na‐Ion Battery Performance and Reaction Mechanism of Tin Sulfide as Negative Electrode", Hiroki Kotaka, Hiroyoshi Momida, Ayuko Kitajou, Shigeto Okada, Tamio Oguchi, Chem. Rec., 19 (4), pp. 811-816.

8. "Tavorite LiFePO4OH hydroxyphosphate as an anode for aqueous lithium-ion batteries", Lalit Sharma, Kosuke Nakamoto, Shigeto Okada, Prabeer Barpanda, J. Power Sources, 429, pp. 17-21.

9. "Amorphous xNaF-FeSO4 Systems (1 ≤ x ≤ 2) with Excellent Cathode Properties for Sodium-Ion Batteries", Ayuko Kitajou, Hiroyoshi Momida, Takahiro Yamashita, Tamio Oguchi, Shigeto Okada, ACS Appl. Energy Mater., 2 (8), pp. 5968-5974.

10. "From information technology to energy technology", Shigeto Okada, Electrochemistry, 87 (5), pp. 246.

11. "First-principles study of X-ray absorption spectra in NaFeSo4F for exploring Na-ion battery reactions", Hiroyoshi Momida, Ayuko Kitajou, Shigeto Okada, Tamio Oguchi, J. Phys. Soc. Jpn., 88, 124709.

12. "Energy Spotlight", Prashant V. Kamat, Louis F. J. Piper, Arumugam Manthiram, Shigeto Okada, M. Saiful Islam, Ying Shirley Meng, Xiaolin Li, Bryan D. McCloskey, Yang-Kook Sun, Linda Nazar, Sarbajit Banerjee, ACS Energy Lett., 4, pp. 2763-2769.

13. "Evaluation of α1-LiVOPO4, β-LiVOPO4, and α-LiVOPO4 synthesized from a same precursor by hydrothermal method", Akinobu Nojima, Atsushi Sano, Shin Fujita, Keitaro Ohtsuki, Shigeto Okada, J. Electrochem. Soc., 166, pp. A3731-A3738.

14. "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, 12 (23), 4534.

15. "Cathode properties of Na3MPO4CO3 (M = Co/Ni) prepared by a hydrothermal method for Na-ion batteries", Baowei Xie, Ayuko Kitajou, Shigeto Okada, Wataru Kobayashi, Masaki Okada, Toshiya Takahara, Evergreen, 6 (4), pp. 262-266.

16. "Electrochemical characterization, structural evolution, and thermal stability of livopo4 over multiple lithium intercalations", Akinobu Nojima, Atsushi Sano, Hiroki Kitamura, Shigeto Okada, Evergreen, 6 (4), pp. 267-274.

17. "O3-type Na(Fe1/3Mn1/3Co1/3)O2 as a cathode material with high rate and good charge-discharge cycle performance for sodium-ion batteries", Takayuki Tsubota, Ayuko Kitajou, Shigeto Okada, Evergreen, 6 (4), pp. 275-279.

18. "Over 2 V Aqueous Sodium‐Ion Battery with Prussian Blue‐Type Electrodes", Kosuke Nakamoto, Ryo Sakamoto, Yuki Sawada, Masato Ito, Shigeto Okada, Small Methods, 3 (4), 1800220.


2018

1. "A single-phase all-solid-state lithium battery based on Li1.5Cr0.5Ti1.5(PO4)3 for high rate capability and low temperature operation", Atsushi Inoishi, Akira Nishio, Yuto Yoshioka, Ayuko Kitajou, Shigeto Okada, Chem. Commun., 54 (25), pp. 3178-3181.

2. "SnSb alloy blended with hard carbon as anode for na-ion batteries", Ying Ching Lu, Nikolay Dimov, Shigeto Okada, Thi Hang Bui, Energies, 11 (6), art. no. en11061614.

3. "High performance electrolyte using mixtures of ionic liquid-solvent for sodium-ion batteries", Linh Thi My Le, Thanh Duy Vo, Quan D. Nguyen, Shigeto Okada, Fannie Alloin, Phung My Loan Le, ECS Trans., 85 (13), pp. 215-226.

4. "Single-phase All-solid-state Silver Battery using Ag1.5Cr0.5Ti1.5(PO4)3 as Anode, Cathode, and Electrolyte", Atsushi Inoishi, Akira Nishio, Ayuko Kitajou, Shigeto Okada, ChemistrySelect, 3 (34), pp. 9965-9968.

5. "Amorphous xLiF-FeSO4 (1 ≤ x ≤ 2) composites as a cathode material for lithium ion batteries", Ayuko Kitajou, Yuji Ishado, Atsushi Inoishi, Shigeto Okada, Solid State ion., 326, pp. 48-51.

6. "Nanotube-structured Na2V3O7 as a Cathode Material for Sodium-Ion Batteries with High-rate and Stable Cycle Performances", Naoto Tanibata, Yuki Kondo, Shohei Yamada, Masaki Maeda, Hayami Takeda, Masanobu Nakayama, Toru Asaka, Ayuko Kitajou, Shigeto Okada, Sci. Rep., 8 (1), 17199.

2017

1. "Discharge and charge reaction of perovskite-type MF3 (M = Fe and Ti) cathodes for lithium-ion batteries", Ayuko Kitajou, Ichiro Tanaka, Yo Tanaka, Eiji Kobayashi, Hiroyuki Setoyama, Toshihiro Okajima, Shigeto Okada, Electrochemistry, 85 (8), pp. 472-477.

2. "Single-Phase All-Solid-State Lithium-Ion Battery Using Li3V2(PO4)3 as the Cathode, Anode, and Electrolyte", Atsushi Inoishi, Takuya Omuta, Yuto Yoshioka, Eiji Kobayashi, Ayuko Kitajou, Shigeto Okada, ChemistrySelect, 2 (26), pp. 7925-7929.

3. "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, 85 (4), pp. 179-185.

4. "Cathode property of Na2CxOx [x = 4, 5, and 6] and K2C6O6 for sodium-ion batteries", Kuniko Chihara, Masato Ito, Ayuko Kitajou, Shigeto Okada, Evergreen, 4 (1), pp. 1-5.

5. "Cathode properties of sodium manganese hexacyanoferrate in aqueous electrolyte", Kosuke Nakamoto, Ryo Sakamoto, Masato Ito, Ayuko Kitajou, Shigeto Okada, Evergreen, 4 (1), pp. 6-9.

6. "Synthesis and electrochemical properties of Fe3C-carbon composite as an anode material for lithium-ion batteries", Ayuko Kitajou, Shinji Kudo, Jun-ichiro Hayashi, Shigeto Okada, Electrochemistry, 85 (10), pp. 630-633.

7. "A Single-Phase, All-Solid-State Sodium Battery Using Na3−xV2−xZrx(PO4)3 as the Cathode, Anode, and Electrolyte", Atsushi Inoishi, Takuya Omuta, Eiji Kobayashi, Ayuko Kitajou, Shigeto Okada, Adv. Mater. Interfaces, 4 (5), art. no. 1600942.

8. "Enabling the Electrochemical Activity in Sodium Iron Metaphosphate [NaFe(PO3)3] Sodium Battery Insertion Material: Structural and Electrochemical Insights", Ritambhara Gond, Sher Singh Meena, S. M. Yusuf, Vivekanand Shukla, Naresh K. Jena, Rajeev Ahuja, Shigeto Okada, Prabeer Barpanda, Inorg. Chem., 56 (10), pp. 5918-5929.

9. "Cathode Properties of Perovskite-type NaMF3 (M = Fe, Mn, and Co) Prepared by Mechanical Ball Milling for Sodium-ion Battery", Ayuko Kitajou, Yuji Ishado, Tomoki Yamashita, Hiroyoshi Momida, Tamio Oguchi, Shigeto Okada, Electrochim. Acta, 245, pp. 424-429.

10. "Improvement in the Energy Density of Na3V2(PO4)3 by Mg Substitution", Atsushi Inoishi, Yuto Yoshioka, Liwei Zhao, Ayuko Kitajou, Shigeto Okada, ChemElectroChem, 4 (11), pp. 2755-2759.

11. "Proton-Driven Intercalation and Ion Substitution Utilizing Solid-State Electrochemical Reaction", Masaya Fujioka, Chuanbao Wu, Naoki Kubo, Gaoyang Zhao, Atsushi Inoishi, Shigeto Okada, Satoshi Demura, Hideaki Sakata, Manabu Ishimaru, Hideo Kaiju, Junji Nishii, J. Am. Chem. Soc., 139 (49), pp. 17987-17993.

2016

1. "In situ crosslinked PVA-PEI polymer binder for long-cycle silicon anodes in Li-ion batteries", Zhen Liu, Shaojie Han, Chong Xu, Yuwen Luo, Na Peng, Chenyang Qin, Mingjiong Zhou, Wenqin Wang, Liwei Chenb, Shigeto Okada, RSC Adv., 6 (72), pp. 68371-68378.

2. "Capacity improvement by deficit of transition metals in inverse spinel LiNi1/3Co1/3Mn1/3VO4 cathodes", Ayuko Kitajou, Jun Yoshida, Shinji Nakanishi, Yasuaki Matsuda, Ryoji Kanno, Toshihiro Okajima, Shigeto Okada, J. Power Sources, 302, pp. 240-246.

3. "Synthesis of sub-10 nm copper sulphide rods as high-performance anode for long-cycle life Li-ion batteries", Mingjiong Zhou, Na Peng, Zhen Liu, Yun Xi, Huiqiu He, Yonggao Xia, Zhaoping Liu, Shigeto Okada, J. Power Sources, 306, pp. 408-412.

4. "Investigation of metastable Na2FeSiO4 as a cathode material for Na-ion secondary battery", Yongho Kee, Nikolay Dimov, Aleksandar Staykov, Shigeto Okada, Mater. Chem. Phys., 171, pp. 45-49.

5. "Electrochemical properties and thermal stability of silicon monoxide anode for rechargeable lithium-ion batteries", Hongyu Fan, Xiaoqing Li, Huiqiu He, Na Peng, Ying Han, Zhen Liu, Mingjiong Zhou, Liwei Zhao, Shigeto Okada, Electrochemistry, 84 (8), pp. 574-577.

6. "Improvement of cathode properties by lithium excess in disordered rocksalt Li2+2xMn1-xTi1-xO4", Ayuko Kitajou, Kosuke Tanaka, Hidenori Miki, Hideyuki Koga, Toshihiro Okajima, Shigeto Okada, Electrochemistry, 84 (8), pp. 597-600.

7. "Electrolyte dependence of the performance of a Na2FeP2O7//NaTi2(PO4)3 rechargeable aqueous sodium-ion battery", Kosuke Nakamoto, Yusuke Kano, Ayuko Kitajou, Shigeto Okada, J. Power Sources, 327, pp. 327-332.

8. "Investigation of Al-doping effects on the NaFe0.5Mn0.5O2 cathode for Na-ion batteries", Yongho Kee, Nikolay Dimov, Simon Champet, Duncan H. Gregory, Shigeto Okada, Ionics, 22 (11), pp. 2245-2248.

9. "Insight into Mg-doping effects on Na3Ni2SbO6 cathode host for Na-ion batteries", Yongho Kee, Nikolay Dimov, Aleksandar Staykov, Shigeto Okada, Mater. Lett., 183, pp. 187-190.

2015

1. "The rate equation of decomposition for electrolytes with LiPF6 in Li-ion cells at elevated temperatures", Jun-ichi Yamaki, Yohei Shinjo, Takayuki Doi, Shigeto Okada, Zempachi Ogumi, J. Electrochem. Soc., 162 (4), pp. A520-A530.

2. "Structural and electrochemical properties of Fe- and Al-doped Li3V2(PO4)3 for all-solid-state symmetric lithium ion batteries prepared by spray-drying-assisted carbothermal method", Yongho Kee, Nikolay Dimov, Eiji Kobayashi, Ayuko Kitajou, Shigeto Okada, Solid State ion., 272, pp. 138-143.

3. "Electrochemical properties of tin oxide anodes for sodium-ion batteries", Ying Ching Lu, Chuze Ma, Judith Alvarado, Takafumi Kidera, Nikolay Dimov, Ying Shirley Meng, Shigeto Okada, J. Power Sources, 284, pp. 287-295.

4. "Electrochemical performance of a novel cathode material lifeof for Li-ion batteries", Ayuko Kitajou, Eiji Kobayashi, Shigeto Okada, Electrochemistry, 83 (10), pp. 885-888.

5. "Orthorhombic Lithium Titanium Phosphate as an Anode Material for Li-ion Rechargeable Battery", Yongho Kee, Nikolay Dimov, Keita Minami, Shigeto Okada, Electrochim. Acta, 174, pp. 516-520.

6. "Lithium metal borate (LiMBO3) family of insertion materials for Li-ion batteries: a sneak peak", Prabeer Barpanda, Debasmita Dwibedi, Swatilekha Ghosh, Yongho Kee, Shigeto Okada, Ionics, 21 (7), pp. 1801-1812.

7. "Improved electrochemical performance of tin-sulfide anodes for sodium-ion batteries", Ying Ching Lu, Chuze Ma, Judith Alvarado, Nikolay Dimov, Ying Shirley Meng, Shigeto Okada, J. Mater. Chem. A, 3 (33), pp. 16971-16977.

8. "Energy-savvy solid-state and sonochemical synthesis of lithium sodium titanate as an anode active material for Li-ion batteries", Swatilekha Ghosh, Yongho Kee, Shigeto Okada, Prabeer Barpanda, J. Power Sources, 296, pp. 276-281.

9. "Insight into the limited electrochemical activity of NaVP2O7", Yongho Kee, Nikolay Dimov, Aleksandar Staikov, Prabeer Barpanda, Ying-Ching Lu, Keita Minami, Shigeto Okada, RSC Adv., 5 (80), pp. 64991-64996.

10. "Reconversion reaction of Lif/Fe composite thin film cathodes for lithium-ion battery", Hironobu Hori, Shigeto Okada, Electrochemistry, 83 (10), pp. 909-913.

11. "Enhanced performance of yolk-shell structured Si-PPy composite as an anode for lithium ion batteries", Zhen Liu, Yuwen Luo, Mingjiong Zhou, Wenqin Wang, Ning Gan, Shigeto Okada, Jun-ichi Yamaki, Electrochemistry, 83 (12), pp. 1067-1070.

12. "Discharge reaction mechanisms in Na/FeS2 batteries: First-principles calculations", Hiroyoshi Momida, Ayuko Kitajou, Shigeto Okada, Tomoki Yamashita, Tamio Oguchi, J. Phys. Soc. Jpn., 84 (12), e124709.

2014

1. "Discharge/charge reaction mechanism of a pyrite-type FeS2 cathode for sodium secondary batteries", A. Kitajou, J. Yamaguchi, S. Hara, S. Okada, J. Power Sources, 247, pp. 391-395.

2. "Quantitative studies on thermal stability of a FeF3 cathode in methyl difluoroacetate-based electrolyte for Li-ion batteries", M. Zhou, L. Zhao, S. Okada, J. Yamaki, J. Power Sources, 253, pp. 74-79.

3. "The rate equation for oxygen evolution by decomposition of LixCoO 2 at elevated temperatures", J. Yamaki, Y. Shinjo, T.i Doi, S. Okada, J. Electrochem. Soc., 161 (10), pp. A1648-A1654.

4. "Electrochemical and thermal properties of P2-type Na2/3Fe 1/3Mn2/3O2 for Na-ion batteries", J. Zhao, J. Xu, D. H.Lee, N. Dimov, Y. S.Meng, S. Okada, J. Power Sources, 264, pp. 236-239.

5. "Mössbauer study of new vanadate glass with large charge-discharge capacity", S. Kubuki, H.i Masuda, K. Matsuda, K. Akiyama, A. Kitajo, S. Okada, P. Zsabka, Z. Homonnay, E. Kuzmann, T. Nishida, Hyperfine Interact., 226, pp 765-770.

6. "TiO2-entrained tubular carbon nanofiber and its electrochemical properties in the rechargeable Na-ion battery system", Y. Ohata, J. Yun, R. Miyamae, T. Kim, J. Kim, M.-H. Seo, A. Kitajo, J. Miyawaki, S. Okada, S.-H. Yoon, Appl. Therm. Eng., 72 (2), pp. 309-314.

2013

1. "Electrochemical and thermal properties of α-NaFeO2 cathode for Na-ion batteries", J. Zhao, L. Zhao, N. Dimov, S. Okada, Tetsuaki Nishida, J. Electrochem. Soc., 160 (5), pp. A3077-A3081.

2. "Cathode properties of Na3M2(PO4) 2F3 [M = Ti, Fe, V] for sodium-ion batteries", K. Chihara, A. Kitajou, I. D.Gocheva, S. Okada, J. Yamaki, J. Power Sources, 227, pp. 80-85.

3. "Fabrication and performances of all solid-state symmetric sodium battery based on NASICON-related compounds", Y. iNoguchi, E. Kobayashi, L. S. Plashnitsa, S. Okada, J. Yamaki, Electrochim. Acta, 101, pp. 59-65.

4. "What determines the critical size for phase separation in LiFePO 4 in lithium ion batteries?", T. Ichitsubo, T. Doi, K. Tokuda, E. Matsubara, T. Kida, T. Kawaguchi, S. Yagi, S. Okada, J. Yamaki, J. Mater. Chem. A, 1 (46), pp. 14532-14537.

5. "Transition metal NaMF3 compounds as model systems for studying the feasibility of ternary Li-M-F and Na-M-F single phases as cathodes for lithium-ion and sodium-ion batteries", N. Dimov A. Nishimura, K. Chihara, A. Kitajou, I. D. Gocheva, S. Okada, Electrochim. Acta, 110, pp. 214-220.

6. "Cathode properties of Na2C6O6 for sodium-ion batteries", K. Chihara, N. Chujo, A. Kitajou, S. Okada, Electrochim. Acta, 110, pp. 240-246.

7. "Synthesis and cathode properties of a cubic rocksalt-type Si-doped Li 2NiTiO4 for lithium-ion batteries", Y. Kawano, A. Kitajou, S. Okada, J. Power Sources, 242, pp. 768-774.

8. "Synthesis of FeOF using roll-quenching method and the cathode properties for lithium-ion battery", A. Kitajou, H. Komatsu, R. Nagano, S. Okada, J. Power Sources, 243, pp. 494-498.

9. "Improvement of solid-state symmetric cell performance with lithium vanadium phosphate", E. Kobayashi, A. Kitajou, S. Okada, J. Yamaki, J. Power Sources, 244, pp. 312-317.

10. "Effect of VC additive on MFA-based electrolyte in Li-ion batteries", L. Zhao, S. Okada, J. Yamaki, J. Power Sources, 244, pp. 369-374.

11. "Cathode properties of Mn-doped inverse spinels for Li-ion battery", A. Kitajou, J. Yoshida, S. Nakanishi, S. Okada, J. Yamaki, J. Power Sources, 244, pp. 658-662.

12. "Electrochemical and thermal properties of hard carbon-type anodes for Na-ion batteries", J. Zhao, L. Zhao, K. Chihara, S. Okada, J. Yamaki, S. Matsumoto, S. Kuze, K. Nakane, J. Power Sources, 244, pp. 752-757.

13. "Electrochemical splitting of LiF: A new approach to lithium-ion battery materials", N. Dimov, A. Kitajou, H. Hori, E. Kobayashi, S. Okada, ECST, 58 (12), pp. 87-99.