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Applied Inorganic Chemistry Lab
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A lab that studies functional ceramics, such as those for batteries and ferroelectrics.
AboutAbout the lab
Handling ceramic materials from a broad perspective.
The Applied Inorganic Chemistry Lab studies ceramic materials that contribute to the fields of energy, electronics, and the environment, from the broad perspectives of processing, applications, and material functions.
The lab works on developing electrolytes and electrode materials for next-generation secondary batteries and creating piezoelectrics and ferroelectrics based on new mechanisms.
It also explores ceramics whose functions originate from reactive anions, such as crystals with voids that incorporate anions.
On the lab's website, the lab is introduced under the name "Katsuro Hayashi Lab".
Key terms
- Ceramics
- Materials made by firing and solidifying inorganic compounds. This lab works with oxide-based materials
- Electrolyte
- A substance that conducts ions inside a battery. Here, the lab works with solid ones that conduct sodium ions
- Ferroelectric
- A material that has electric polarization even without an applied electric field, and whose polarization direction can be switched by an electric field
ResearchResearch themes
The lab studies ceramic materials that contribute to the fields of energy, electronics, and the environment, from the broad perspectives of processing, applications, and material functions. Research centers on developing materials for next-generation secondary batteries, creating piezoelectrics and ferroelectrics based on new mechanisms, and exploring ceramics whose functions originate from reactive anions.
*Illustrative imageMaterials Development for Next-Generation Secondary Batteries
The lab aims to realize oxide-based all-solid-state sodium-ion batteries. It works on electrolyte and electrode materials and battery construction, including developing electrolyte materials that can be sintered at low temperature and show high sodium-ion conductivity at room temperature.
*Illustrative imagePiezoelectrics and Ferroelectrics with New Mechanisms
In most piezoelectrics and ferroelectrics in practical use, the properties originate from special electronic structures such as those of Pb and Ti ions. Combining theoretical calculations and experiments, the lab aims for new design guidelines that use rotation and distortion of anion coordination polyhedra.
*Illustrative imageFunctions Originating from Reactive Anions
Crystals of 12CaO·7Al2O3 (C12A7) and its derivatives have nano-sized voids that incorporate anions. Focusing on functions arising from hydride ions, electrons, and others, the lab searches for new materials.
MembersFaculty
The members of the Applied Inorganic Chemistry Lab consist of faculty, technical staff, doctoral, master's, and undergraduate students, and research students.As of 2026
- ProfessorKatsuro Hayashi
- Associate ProfessorHirofumi Akamatsu
- Assistant ProfessorJian Wang
VoicesStudent voices
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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: “Bishnoi -- Brennofen” Wolfgang Sauber / CC BY-SA 4.0 (cropped)
- Materials Development for Next-Generation Secondary Batteries: “Bloated rechargeable batteries” Tobias ToMar Maier / CC BY-SA 3.0 (cropped)
- Piezoelectrics and Ferroelectrics with New Mechanisms: “Ideenwelt EM2862 - Piezoelectric buzzer-91799” Raimond Spekking / CC BY-SA 4.0 (cropped)
- Functions Originating from Reactive Anions: “Muscovite structure 100” Kent G. Budge / CC0 (cropped)
- Related lab (有機機能分子化学研究室): “Organic Chemistry Lab by marthou” Marthou / CC BY-SA 4.0 (cropped)
- Related lab (機能物質工学研究室): “Diagram of SO Fuel CEll (Arabic)” Ciphers / Public domain (cropped)
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（高等研究院） ): “OLED SUBPIXELS” TECH EDU / CC BY-SA 4.0 (cropped) - Related lab (カーボンニュートラル研究室
（カーボンニュートラル・ エネルギー国際研究所） ): “Solar Panels and Wind Generator - geograph.org.uk - 1218592” David Stowell / CC BY-SA 2.0 (cropped)
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