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[Research News] Porous Silicon Oxide Electrodes: A Breakthrough Towards Sustainable Energy Storage

Dec.17,2024 Update
20240327ResearchNews An eco-friendly city where batteries with porous silicon electrodes contribute to society.
Storing excess energy produced from renewable sources is essential to make the most out of them, but conventional lithium-ion batteries significantly degrade over time. In this study, researchers developed a porous silicon oxide electrode suitable for all-solid-state batteries, addressing a long-standing problem related to their degradation.※
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Professor Takayuki Doi, Faculty of Science and Engineering, and his colleagues investigate a promising strategy for fixing durability issues in all-solid-state batteries.
All-solid-state batteries are safer and more durable alternatives to traditional lithium-ion batteries. Still, the cracking and detaching of silicon-based electrodes due to expansion and contraction limits their potential. In a recent study, Doi and his team developed porous silicon oxide electrodes to address this issue. The pores helped reduce the stress at the electrode-electrolyte interface, vastly improving performance, durability, and capacity. These findings bring us closer to long-lasting all-solid-state batteries for renewable energy and electric vehicles.

Reference
Kohei Marumoto, Kiyotaka Nakano, Yuki Kondo, Minoru Inaba, and Takayuki Doi. Tailored Design of a Nanoporous Structure Suitable for Thick Si Electrodes on a Stiff Oxide-Based Solid Electrolyte. ACS Applied Materials & Interfaces 2024 16 (45), 62274-62281
DOI: 10.1021/acsami.4c15894

For more details, please see the website of Organization for Research Initiatives and Development, Doshisha University.
Porous Silicon Oxide Electrodes: A Breakthrough Towards Sustainable Energy Storage

This achievement has also been featured in the “EurekAlert!.”NEWS RELEASE 16-DEC-2024,
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License type: Original content
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