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Electrochemistry Lab
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The lab investigates the materials of electrochemical devices from the level of ions and molecules.
AboutAbout the lab
Materials chemistry research related to electrochemical devices
The Electrochemistry Lab studies the structures, properties, and reactions of the ions, molecules, functional inorganic materials, and functional organic materials that make up electrochemical devices.
The lab researches and develops new electrode materials and electrolytes, aiming to further improve the performance of lithium-ion secondary batteries and to realize next-generation batteries with revolutionary performance.
While valuing the fundamentals of the discipline, the lab hopes to pursue original and creative research from a broad perspective, including applications of materials in devices.
On the lab's website, it is introduced under the name "Dokko-Tatara Lab."
Key terms
- Lithium-ion secondary battery
- A battery with high energy density and high output. It is widely used as a power source for portable devices and electric vehicles
- Ionic liquid
- A liquid made only of ions. This lab studies using flame-retardant ones as electrolytes for next-generation secondary batteries
- Highly concentrated electrolyte
- An electrolyte in which an alkali metal salt is dissolved in an organic solvent at high concentration. It shows a distinctive ion transport mechanism not seen in conventional electrolytes
NewsLab news
A student won the Excellent Poster Award at the GteX Storage Battery Field Young Researchers Exchange Meeting
Associate Professor Ryoichi Tatara won the Encouragement Award of the Yokohama National University Outstanding Researcher Award for FY2025
A master's student won a Poster Award at MRM2025
ResearchResearch themes
The lab investigates the structures, properties, and reactions of the ions, molecules, functional inorganic materials, and functional organic materials that make up electrochemical devices, aiming to further improve lithium-ion secondary batteries and to realize next-generation batteries. It works on the research and development of new electrode materials and electrolytes, pursuing research from a broad perspective that values the fundamentals while also covering device applications.
*Illustrative imageDeveloping New Electrolytes and Analyzing Their Properties
The lab is studying the use of flame-retardant ionic liquids as electrolytes for next-generation secondary batteries, and is developing new electrolytes and studying their physicochemical properties. In molten complexes and highly concentrated electrolytes, it has found distinctive ion transport mechanisms not seen in conventional electrolytes.
*Illustrative imageElectrochemical Reaction Mechanisms Inside Batteries
Using state-of-the-art measurement techniques, the lab examines the charge transfer reactions at the interfaces between a battery's positive and negative electrodes and the electrolyte, and the accompanying mass transport. It aims to clarify the factors that govern these reactions and to provide guidelines for operating batteries with high efficiency.
MembersFaculty
The members of the Dokko-Tatara Lab consist of a professor, an associate professor, a lecturer, visiting faculty members, research assistants, and doctoral, master's, and undergraduate students.As of 2026
- ProfessorKaoru Dokko
- Associate ProfessorRyoichi Tatara
- LecturerHisashi Kokubo
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Anker AstroMini (2nd Gen, 79AN7913S) - Li-Ion battery-6200” Raimond Spekking / CC BY-SA 4.0 (cropped)
- Developing New Electrolytes and Analyzing Their Properties: “Calcium Nitrate Water In Salt Electrolyte ( "WiSE")” D.S. Soriano / CC BY-SA 4.0 (cropped)
- Electrochemical Reaction Mechanisms Inside Batteries: “Degraded AEM after elongation testing” Malikah Najibah / CC BY 4.0 (cropped)
- Related lab (Solid-State Energy Chemistry Lab): “Electrode Coater” RudolfSimon / CC BY 3.0 (cropped)
- Related lab (Mitsushima-Kuroda Lab): “Front cells” CambridgeBayWeather / CC BY-SA 4.0 (cropped)
- Related lab (Izato Lab): “Destroyed Trailers and Blowdown Stack” U.S. Chemical Safety Board / Public domain (cropped)
- Related lab (Hondo Lab): “Renewable Energy Systems wind turbine” Colin / CC BY-SA 4.0 (cropped)
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