Waseda University · Engineering
Professor Toshiyuki Momma's research lab specializes in advanced materials for next-generation energy storage systems, with a primary focus on solid-state batteries and lithium-sulfur batteries. The lab develops innovative electrode engineering strategies, such as chemical pre-lithiation and hybrid polymer electrolyte systems, to enhance ion transport, electrochemical stability, and cycle performance. Key research directions include nanostructured current collectors, interfacial engineering in solid electrolytes, and the design of functional conductive polymers for high-performance cathodes. The lab emphasizes practical, room-temperature fabrication techniques to enable scalable and durable battery technologies.
Figures are computed from collected data and may differ slightly.
This work reports a new chemical pre-lithiation method to fabricate lithium sulfide (Li2S) cathode. This pre-lithiation process is taken place simply by dropping the organolithium reagent lithium naphthalenide (Li+Naph−) on the prepared sulfur cathode. It is the first time realizing the room temperature chemical pre-lithaition reaction attributed by the 3D nanostructured carbon nanotube (CNT) current collector. It is confirmed that the Li2S cathode fabricated at room temperature showing higher c
Nafion® was introduced into a polypyrrole (PPy) matrix, and the redox performance of the PPy/Nafion electrode was investigated in a poly(ethylene oxide) electrolyte. A rougher interface between polymer cathode and polymer electrolyte is usually needed for an all‐solid battery, however, the PPy/Nafion cathode works well regardless of the flat surface of the PPy/Nafion film. When compared to a PPy film doped with anions with a similar morphology, the PPy/Nafion film showed better redox performance
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