Details of the Researcher

PHOTO

Hongyi Li
Section
Institute for Materials Research
Job title
Assistant Professor
Degree

  • 博士（工学）（東北大学）

  • 修士（工学）（京都大学）

Researcher ID
M-5921-2019

Research History 5

  • 2025/06 - Present
    Tohoku University　Institute for Materials Research　Assistant Professor

  • 2020/02 - 2025/05
    Tohoku University　Institute for Materials Research Collaborative Research Center on Energy Materials　Specially Appointed Assistant Professor

  • 2019/10 - 2022/04
    Tohoku University　Institute for Materials Research, Structure-Controlled Functional Materials Research Laboratory　Specially Appointed Assistant Professor

  • 2019/04 - 2019/09
    Tohoku University　Institute for Materials Research　JSPS Research Fellowship (PD)

  • 2018/04 - 2019/03
    Tohoku University　Graduate School of Engineering　JSPS Research Fellowship (DC2)

Education 4

  • Tohoku University　Graduate School of Engineering　Department of Metallurgy

    2017/04 - 2019/03

  • Kyoto University　Graduate School of Engineering　Deprtment of Materical Science and Engineering

    2016/04 - 2017/03

  • Kyoto University　Graduate School of Engineering　Deprtment of Materical Science and Engineering

    2014/04 - 2016/03

  • Hefei University of Technology　School of Materials Science and Engineering

    2008/08 - 2012/07

Professional Memberships 4

  • The Chemical Society of Japan

    2025/04 - Present

  • The Electrochemical Society of Japan

    2020/08 - Present

  • International Society of Electrochemistry

    2018/08 - Present

  • The Japan Institute of Metals and Materials

    2018/07 - Present

Research Interests 3

  • Battery Materials

  • Electrochemistry

  • Computational simulations

Awards 1

  1. 第11回まてりあ論文賞

    2021/09　The Japan Institute of Metals and Materials　Fundamental Study towards Development of Energy Storage Devices Utilizing Multivalent Cations

Papers 20

  1. Enhancing the durability of aluminium-foil anodes in rechargeable lithium batteries via uniformly distributed alloy addition in the matrix phase International-journal Peer-reviewed

    Hongyi Li, Shohei Nishimura, Weiqi Liu, Norihiko L. Okamoto, Shingo Matsumoto, Yuki Nakata, Hiroaki Hoshikawa, Toshiaki Kumagai, Takitaro Yamaguchi, Tetsu Ichitsubo

    Journal of Materials Chemistry A　13　5723-5731　2025/01/28

    Publisher: Royal Society of Chemistry (RSC)

    DOI： 10.1039/d4ta07956f 　

    ISSN： 2050-7488

    eISSN： 2050-7496

    More details Close

    Uniformly distributed Si in the Al matrix as a solid solution induces a pinning effect, prevents cracking of the Al grains, suppresses pulverization and improves the cycling stability of Al-foil anodes in rechargeable lithium batteries.

  2. Stable functional electrode–electrolyte interface formed by multivalent cation additives in lithium-metal anode batteries International-journal Peer-reviewed

    Hongyi Li, Daichi Shimizu, Rongkang Jin, Tongqing Zhang, Daisuke Horikawa, Katsuhiko Nagaya, Hiroshi Tsubouchi, Hiroyuki Yamaguchi, Motoyoshi Okumura, Tetsu Ichitsubo

    Journal of Materials Chemistry A　13　3619-3633　2024/12/24

    Publisher: Royal Society of Chemistry (RSC)

    DOI： 10.1039/d4ta07531e 　

    ISSN： 2050-7488

    eISSN： 2050-7496

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    This work introduces the use of multivalent cations (e.g. Ca2+, Ba2+, La3+ and Ce3+) as electrolyte additives in lithium-metal anode batteries with a focus on solvation structure modification, SEI formation and lithium growth.

  3. Alkali Cation Additives Assisting Magnesium Cation Intercalation in Hollandite-Type Manganese Dioxide Cathodes International-journal Peer-reviewed

    Yue Qi, Hongyi Li, Kohei Shimokawa, Xiatong Ye, Tomoya Kawaguchi, Tetsu Ichitsubo

    The Journal of Physical Chemistry C　127　(43)　21271-21278　2023/10/18

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acs.jpcc.3c03803 　

    ISSN： 1932-7447

    eISSN： 1932-7455

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    In rechargeable magnesium batteries, Mg2+ usually exhibits sluggish kinetics and large overpotentials during intercalation into cathode materials due to the strong Coulomb interaction with the host structures. In this work, we show that introducing alkali ions (Li+, Na+, or K+) to construct dual-cation electrolytes significantly reduces the discharge overpotential and increase the discharge capacity of a hollandite-type α-MnO2 cathode. Two necessary conditions are found to activate the concerted effects: (i) Mg2+ intercalation is energetically preferred by the cathode materials compared to the alkali cation additives. The topotactic Mg2+ intercalation therefore maintains the main cathode reaction and keeps the battery as a “rocking-chair-type” structure. (ii) The Mg2+ and alkali cations coexist in the host structures without phase separation. The mixing of the dual cations along the diffusion path may allow concerted motion, reducing the energy barrier in solid-state diffusion.

  4. Inserting a lithiation potential gap as a factor for degradation control in aluminum-foil anodes by utilizing roll-bonding processes International-journal Peer-reviewed

    Hongyi Li, Shohei Nishimura, Yuki Nakata, Shingo Matsumoto, Takitaro Yamaguchi, Hiroaki Hoshikawa, Toshiaki Kumagai, Tetsu Ichitsubo

    Journal of Materials Chemistry A　11　23311-23318　2023/09/29

    Publisher: Royal Society of Chemistry (RSC)

    DOI： 10.1039/d3ta03687a 　

    ISSN： 2050-7488

    eISSN： 2050-7496

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    Using a roll-bonding process, the authors combine Al foils with different alloy additions into clad Al foils. The lithiation potential difference between the Al foils serves as a control factor to regulate lithium penetration during cycles.

  5. Examining Electrolyte Compatibility on Polymorphic MnO2 Cathodes for Room-Temperature Rechargeable Magnesium Batteries International-journal Peer-reviewed

    Xiatong Ye, Hongyi Li, Takuya Hatakeyama, Hiroaki Kobayashi, Toshihiko Mandai, Norihiko L. Okamoto, Tetsu Ichitsubo

    ACS Applied Materials & Interfaces　14　56685-56696　2022/12/15

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acsami.2c14193 　

    ISSN： 1944-8244

    eISSN： 1944-8252

  6. Dendrite-free alkali metal electrodeposition from contact-ion-pair state induced by mixing alkaline earth cation International-journal Peer-reviewed

    Hongyi Li, Masaki Murayama, Tetsu Ichitsubo

    Cell Reports Physical Science　3　(6)　100907　2022/05/20

    DOI： 10.1016/j.xcrp.2022.100907 　

    eISSN： 2666-3864

  7. Circumventing huge volume strain in alloy anodes of lithium batteries International-journal Peer-reviewed

    Hongyi Li, Takitaro Yamaguchi, Shingo Matsumoto, Hiroaki Hoshikawa, Toshiaki Kumagai, Norihiko L. Okamoto, Tetsu Ichitsubo

    Nature Communications　11　(1)　1584　2020/04/13

    DOI： 10.1038/s41467-020-15452-0 　

    eISSN： 2041-1723

  8. Fast Diffusion of Multivalent Ions Facilitated by Concerted Interactions in Dual-Ion Battery Systems Peer-reviewed

    Hongyi Li, Norihiko L. Okamoto, Takuya Hatakeyama, Yu Kumagai, Fumiyasu Oba, Tetsu Ichitsubo

    Advanced Energy Materials　8　(27)　1801475　2018/09/25

    DOI： 10.1002/aenm.201801475 　

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    © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Sluggish solid-phase diffusion has been an essential issue in developing intercalation electrode materials using multivalent ions. Compared to monovalent Li ions, the diffusion of multivalent ions is still not well understood. Here, combining first-principles calculations with electrochemical experiments, it is shown that the diffusion of divalent Mg ions is significantly facilitated in Li–Mg dual-ion systems, and the activation energy is remarkably reduced by the concerted interactions of the preceding Li ions and following Mg ions. Thus, making dual-ion systems is a promising way to construct high-energy-density, rechargeable batteries with multivalent ions. This work will provide a new perspective on solid-phase diffusion that is typically a rate-controlling process in battery systems and fuel cell devices.

  9. Constructing metal-anode rechargeable batteries utilizing concomitant intercalation of Li-Mg dual cations into Mo6S8 Peer-reviewed

    Hongyi Li, Tetsu Ichitsubo, Shunsuke Yagi, Eiichiro Matsubara

    Journal of Materials Chemistry A　5　(7)　3534-3540　2017/01/17

    Publisher: ROYAL SOC CHEMISTRY

    DOI： 10.1039/c6ta10663c 　

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    Li-Mg dual-salt batteries (DSBs) have attracted growing attention, because a novel way to construct high-energy density DSBs is to take advantage of respective carrier cations. However, previous studies on Li-Mg DSBs have been almost limited to Daniell-type batteries, not attaining rocking-chair-type batteries with high-energy densities. In this work, we show experimentally that concomitant intercalation of Li and Mg ions into the Chevrel compound Mo6S8 in almost equal proportions can occur when discharging in a LiTFSA-Mg(TFSA) 2/triglyme(G3) electrolyte. By exploiting this feature, we confirmed with two-electrode coin cells that non-dendritic electrodeposition morphology is available after charge. This work indicates the feasibility of room-temperature rocking-chair-type dual-salt batteries, which provides a new strategy for future safe "metal-anode" rechargeable batteries with high energy densities.

  10. Transition Metal Parent Alumylene Complexes: Synthesis, Structures, and XPS Characterization of Aluminum Oxidation State International-journal Peer-reviewed

    Keita Sato, Takashi Komuro, Susumu Imashuku, Hongyi Li, Tetsu Ichitsubo, Hisako Hashimoto

    Inorganic Chemistry　63　(36)　16940-16948　2024/08/27

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acs.inorgchem.4c03356 　

    ISSN： 0020-1669

    eISSN： 1520-510X

  11. Securing cation vacancies to enable reversible Mg insertion/extraction in rocksalt oxides Peer-reviewed

    Tomoya Kawaguchi, Masaya Yasuda, Natsumi Nemoto, Kohei Shimokawa, Hongyi Li, Norihiko L. Okamoto, Tetsu Ichitsubo

    Journal of Materials Chemistry A　12　9088-9101　2024/03/15

    Publisher: Royal Society of Chemistry (RSC)

    DOI： 10.1039/d3ta07942b 　

    ISSN： 2050-7488

    eISSN： 2050-7496

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    Introducing and securing cation vacancies in a crystalline structure activates the disordered rocksalt oxide cathodes for rechargeable magnesium batteries. This strategy provides a new opportunity for novel cathode materials.

  12. Li intercalation in 2D iron phosphate synthesized from the partial dehydration and deprotonation of vivianite International-journal Peer-reviewed

    Ryo Yamane, Hongyi Li, Tetsu Ichitsubo, Kazumasa Sugiyama

    Physical chemistry chemical physics　25　(45)　31346-31351　2023/11/22

    DOI： 10.1039/d3cp02463f 　

    More details Close

    This study focuses on the cation intercalation of structurally unique compounds synthesized from the partial dehydration and deprotonation of coordinated water molecules in hydrous materials. Partial dehydration can potentially result in hydrous materials with a porous nature, which maintains the parent structure of the material, and deprotonation causes oxidation in the hydrous materials. Li-intercalation experiments were conducted on the hydrous iron(II) phosphate mineral, vivianite (Fe2+3(PO4)2·8H2O), and its oxidized and partially dehydrated product, santabarbaraite. Vivianite comprises two-dimensional Fe3(PO4)2 sheets and coordinated water molecules. The oxidation progress of the Fe2+ of vivianite increased cathodic capacities up to 156 mA h g-1. The Li-intercalation reaction rate increased significantly owing to dehydration because the partial dehydration of vivianite created structural space for the diffusion of Li+. Furthermore, X-ray diffraction measurements revealed that Li intercalation did not cause the formation of byproducts.

  13. Mg–Zn–Mn Oxide Systems for a Rechargeable Mg-Battery Cathode Peer-reviewed

    Xiatong Ye, Kohei Shimokawa, Yuto Kezuka, Takuya Hatakeyama, Hongyi Li, Tetsu Ichitsubo

    The Journal of Physical Chemistry C　127　(11)　5210-5218　2023/03/08

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acs.jpcc.2c09071 　

    ISSN： 1932-7447

    eISSN： 1932-7455

  14. Mg-ion storage materials based on MnO2 frameworks Invited Peer-reviewed

    Kohei Shimokawa, Takuya Hatakeyama, Hongyi Li, Tetsu Ichitsubo

    Current Opinion in Electrochemistry　38　101209　2023/01

    Publisher: Elsevier BV

    DOI： 10.1016/j.coelec.2023.101209 　

    ISSN： 2451-9103

  15. Influences of Enhanced Entropy in Layered Rocksalt Oxide Cathodes for Lithium-Ion Batteries Peer-reviewed

    Tomoya Kawaguchi, Xiao Bian, Takuya Hatakeyama, Hongyi Li, Tetsu Ichitsubo

    ACS Applied Energy Materials　5　4369-4381　2022/04/11

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acsaem.1c03968 　

    ISSN： 2574-0962

    eISSN： 2574-0962

  16. Excellently balanced water-intercalation-type heat-storage oxide Peer-reviewed

    Takuya Hatakeyama, Norihiko L. Okamoto, Satoshi Otake, Hiroaki Sato, Hongyi Li, Tetsu Ichitsubo

    Nature Communications　13　1452　2022/03/17

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1038/s41467-022-28988-0 　

    eISSN： 2041-1723

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    Abstract Importance of heat storage materials has recently been increasing. Although various types of heat storage materials have been reported to date, there are few well-balanced energy storage materials in terms of long lifetime, reversibility, energy density, reasonably fast charge/discharge capability, and treatability. Here we report an interesting discovery that a commonly known substance, birnessite-type layered manganese dioxide with crystal water (δ-type K0.33MnO2 ⋅ nH2O), exhibits a water-intercalation mechanism and can be an excellently balanced heat storage material, from the above views, that can be operated in a solid state with water as a working pair. The volumetric energy density exceeds 1000 MJ m−3 (at n ~ 0.5), which is close to the ideally maximum value and the best among phase-change materials. The driving force for the water intercalation is also validated by the ab initio calculations. The proposed mechanism would provide an optimal solution for a heat-storage strategy towards low-grade waste-heat applications.

  17. Accelerated Kinetics Revealing Metastable Pathways of Magnesiation-Induced Transformations in MnO2 Polymorphs International-journal Peer-reviewed

    Takuya Hatakeyama, Hongyi Li, Norihiko L. Okamoto, Kohei Shimokawa, Tomoya Kawaguchi, Hiroshi Tanimura, Susumu Imashuku, Maximilian Fichtner, Tetsu Ichitsubo

    Chemistry of Materials　33　6983-6996　2021/08/17

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acs.chemmater.1c02011 　

    ISSN： 0897-4756

    eISSN： 1520-5002

  18. Electrochemical phase transformation accompanied with Mg extraction and insertion in a spinel MgMn2O4 cathode material Peer-reviewed

    Takuya Hatakeyama, Norihiko L. Okamoto, Kohei Shimokawa, Hongyi Li, Aiko Nakao, Yoshiharu Uchimoto, Hiroshi Tanimura, Tomoya Kawaguchi, Tetsu Ichitsubo

    Physical Chemistry Chemical Physics　21　(42)　23749-23757　2019/10/22

    DOI： 10.1039/c9cp04461b 　

    ISSN： 1463-9084

    More details Close

    © the Owner Societies. One of the key challenges when developing magnesium rechargeable batteries (MRB) is to develop Mg-intercalation cathodes exhibiting higher redox potentials with larger specific capacities. Although Mg-transition-metal spinel oxides have been shown to be excellent candidates as MRB cathode materials by utilizing the valence change from trivalent to divalent of transition metals starting from Mg insertion, there is no clear evidence to date that Mg can be indeed extracted from the initial spinel hosts by utilizing the change from trivalent to quadrivalent. In this work, we clearly present various experimental evidences of the electrochemical extraction of Mg from spinel MgMn2O4. The present electrochemical charge, i.e., extraction treatment of Mg, was performed in an ionic liquid at 150 °C to ensure Mg hopping in the spinel host. Our analyses show that Mg can be extracted from Mg1-xMn2O4 up to x = 0.4 and, afterwards, successively be inserted into the Mg-extracted (demagnesiated) host via a two-phase reaction between tetragonal and cubic spinels. Finally, we also discuss the difference in electrochemical features between LiMn2O4 and MgMn2O4

  19. CHAPTER 11. Mg–Li Dual-cation Batteries in "Magnesium Batteries: Research and Applications"

    Hongyi Li

    Energy and Environment Series　2019/09/26

    DOI： 10.1039/9781788016407-00241 　

    ISSN： 2044-0782

  20. Study on Li-Mg Dual-Ion Batteries Utilizing Concerted Interactions of Different Carriers Peer-reviewed

    Hongyi Li

    Thesis(doctor)　2019/03

    Publisher: Tohoku University

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Misc. 6

  1. Improving Cyclability of Alloy Anode Materials for Lithium Batteries Invited

    Tetsu Ichitsubo, Hongyi Li

    CHEMISTRY　76　(2)　12-15　2021/01

    Publisher: 化学同人

    ISSN： 0451-1964

  2. Development of Current-collector-integrated Aluminum Negative Electrode for Lithium Batteries Invited

    Hongyi Li, Takitaro Yamaguchi, Tetsu Ichitsubo

    Journal of Society of Automotive Engineers of Japan　75　(1)　74-81　2021/01

    Publisher: Society of Automotive Engineers of Japan

    ISSN： 0385-7298

  3. Fundamental Study towards Development of Energy Storage Devices Utilizing Multivalent Cations Invited Peer-reviewed

    Hongyi Li, Kohei Shimowaka, Norihiko L. Okamoto, Tetsu Ichitsubo

    Materia Japan　59　(8)　413-421　2020/08/01

    Publisher: Japan Institute of Metals

    DOI： 10.2320/materia.59.413 　

    ISSN： 1340-2625

    eISSN： 1884-5843

  4. 空気中の水分子を吸収・放出して繰返し蓄熱可能な層状二酸化マンガンのX線回折測定-低温廃熱を回収・再利用できる蓄熱材料の発見-

    岡本範彦, 畠山拓也, 李弘毅, 市坪哲

    リガクジャーナル(Web)　53　(2)　2022

    ISSN： 1883-8456

  5. Rocking‐chair type Mg‐Li dual‐salt battery: Study on electrode materials with ionic liquid

    Tetsu Ichitsubo, Hongyi Li, Kohei Shimokawa, Shunsuke Yagi, Eiichiro Matsubara

    溶融塩および高温化学　60　(1)　16‐22-22　2017/01/27

    Publisher: 電気化学会溶融塩委員会

    ISSN： 0916-1589

  6. Toward development of rocking-chair type Mg-Li dual-salt battery

    市坪 哲, 李 弘毅, 下川 航平, 八木 俊介, 松原 英一郎

    新電池構想部会講演会　96　1-9　2016/07/27

    Publisher: 電気化学会電池技術委員会新電池構想部会

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Books and Other Publications 1

  1. Magnesium Batteries: Research and Applications

    Hongyi Li, Tetsu Ichitsubo, Eiichiro Matsubara

    The Royal Society of Chemistry　2019/09

    DOI： 10.1039/9781788016407-00241 　

    ISBN: 9781788014342

    More details Close

    Magnesium batteries are expected to be promising post lithium-ion batteries owing to several intriguing advantages, such as a relatively safe metal anode, low production cost, and high energy density. There are, however, still essential issues that hinder the development of practical magnesium batteries. In this chapter, we show that employing Mg ions with Li ions to construct Mg–Li dual-ion batteries is an effective approach to realize high performance rechargeable batteries with safe metal anodes. Beginning with a brief introduction of the concept, the fundamental electrochemistry is described for Daniell-type and rocking-chair-type Mg–Li dual-ion batteries. Furthermore, the co-intercalation behavior of Mg and Li ions is investigated theoretically and experimentally, which demonstrates that Mg intercalation can be facilitated by a concerted interaction between the preceding Li ions and following Mg ions. This provides a new perspective on solid-phase diffusion that is typically a rate-controlling process in battery systems.

Presentations 10

  1. Development of Aluminum-Foil Anodes for Rechargeable Lithium Batteries

    Hongyi Li, Takitaro Yamaguchi, Shingo Matsumoto, Hiroaki Hoshikawa, Toshiaki Kumagai, Tetsu Ichitsubo

    PRiME 2024　2024/10/08

  2. Multivalent Cation Additives for Building Dendrite-Free and Stable Electrode-Electrolyte Interface on Lithium-Metal Anodes

    Hongyi Li, Tetsu Ichitsubo

    PRiME 2024　2024/10/06

  3. Non-dendritic Electrodeposition of Alkali-Metal Anodes by Solvation Structure Modification in Dual-Cation Electrolytes

    Hongyi Li, Tetsu Ichitsubo

    PRICM11　2023/11/22

  4. Dual-ion rechargeable battery systems utilizing concerted interactions Invited

    Hongyi Li, Norihiko L. Okamoto, Tetsu Ichitsubo

    12th Japan-France Joint Seminar on Batteries　2018/09/21

  5. Concerted Motion of Li-Mg Dual Ions in Intercalation Cathode Materials International-presentation

    Hongyi Li, Norihiko L. Okamoto, Yu Kumagai, Fumiyasu Oba, Tetsu Ichitsubo

    69th ISE Annual Meeting　2018/09/06

  6. Feasibility of Metal-Anode Rechargeable Battery: Toward “Rocking-Chair” Type Mg-Li Dual-Salt Batteries International-presentation

    Hongyi Li, Shunsuke Yagi, Yu Kumagai, Fumiyasu Oba Eiichiro Matsubara, Tetsu Ichitsubo

    PRiME 2016　2016/10/03

  7. Solvation Structure Modification in Dual-Cation Electrolytes for Dendrite-free Alkali Metal Electrodeposition

    Hongyi Li, Masaki Murayama, Tetsu Ichitsubo

    74th Annual ISE Meeting　2023/09/04

  8. 協奏的相互作用による多価カチオン固体内拡散の促進現象

    李 弘毅, 岡本 範彦, 熊谷 悠, 大場 史康, 市坪 哲

    第45回 固体イオニクス討論会

  9. 協調的相互作用による多価カチオン固体内拡散の促進現象

    李 弘毅, 岡本 範彦, 熊谷 悠, 大場 史康, 市坪 哲

    日本金属学会 2019年秋期大会（第165回）

  10. インターカレーション型正極材料におけるLi-Mgデュアルキャリア拡散挙動

    李 弘毅, 熊谷 悠, 大場 史康, 市坪 哲

    第43回 固体イオニクス討論会

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Industrial Property Rights 3

  1. バッテリーシステム

    山口 滝太郎, 松本 慎吾, 星河 浩介, 市坪 哲, 李 弘毅

    特許7535214

    Property Type: Patent

    Holder: 国立大学法人東北大学

  2. リチウム二次電池用負極及びリチウム二次電池

    松本 慎吾, 山口 滝太郎, 市坪 哲, 李弘毅

    Property Type: Patent

  3. 金属負極、リチウム二次電池、バッテリーシステム及び金属負極の製造方法

    山口 滝太郎, 松本 慎吾, 市坪 哲, 李 弘毅

    Property Type: Patent

Research Projects 6

  1. Fandamental construction of a world woven by dual ions for metal-anode storage batteries

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (S)

    Institution: Tohoku University

    2023/04 - 2028/03

  2. 多価カチオン添加を利用したデンドライトフリーアルカリ金属負極の開発

    李 弘毅

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 若手研究

    Institution: 東北大学

    2024/04/01 - 2026/03/31

  3. デュアルイオン蓄電池に向けた新規ハイエントロピー酸化物正極の概念構築

    市坪 哲, 岡本 範彦, 河口 智也, 李 弘毅, 下川 航平, 田中 万也, 岡村 浩之

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 基盤研究(A)

    Institution: 東北大学

    2023/04/01 - 2026/03/31

  4. デュアルカチオン電池系における金属負極析出・溶解機構の解明 Competitive

    李 弘毅, 和田 武

    Offer Organization: 東北大学金属材料研究所先端エネルギー材料理工共創研究センター

    System: 2021年度「若手研究者のためのエネルギー材料萌芽研究助成」

    2021/06 - 2022/03

  5. Design of Cathode Materials for High-Performance Li-Mg Dual-cation Batteries Competitive

    Hongyi Li

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Research Activity start-up

    Category: Grant-in-Aid for Research Activity start-up

    Institution: Tohoku University

    2020/09 - 2022/03

    More details Close

    Dual-cation batteries, in which two carriers (e.g. lithium and magnesium) are used together, have the potential to solve the inherent problems of conventional batteries that use a single carrier. In this study, we investigated the composition range in which two carriers can coexist in a cathode and examined the performance of the electrode materials. In particular, we used manganese dioxide polymorphs, which have various typical crystal structures, as model cathodes and considered suitable structures for the coexistence of carriers. In parallel with the study of the cathode, we also investigated the electrodeposition and dissolution behavior of metal anodes in the dual-cation electrolyte and found that the deposition morphology of the metal anodes can be controlled by the solvation structure modification in the dual-cation electrolyte.

  6. Development of metal-anode Li-Mg dual-ion battery systems

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for JSPS Fellows

    Category: Grant-in-Aid for JSPS Fellows

    Institution: Tohoku University

    2018/04 - 2020/03

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Media Coverage 6

  1. 住友化学、負極材に参入

    日本経済新聞

    2020/06/02

    Type: Newspaper, magazine

  2. リチウム電池の劣化抑える 東北大と住化、アルミ負極を開発

    日刊工業新聞

    2020/04/28

    Type: Newspaper, magazine

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