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Stable Silicon/Graphene/CNT Composite for Use in Li-Ion Batteries

In a recent study published in the journal Electrochimica Acta, researchers from China developed a 3D carbon-coated stable silicon/graphene/CNT composite to overcome the limitation of volume expansion of silicon lithium-ion batteries during the charge-discharge process to a certain extent.

China , Song-lin , Jilin , Huiyong-liu , Xuesong-lu , Chinmay-sarafdec , Fangfang-wang , Ruoyu-hong , Chinmay-saraf , Electrochimica-acta , Susha-cheriyedath ,

The first hydroxide conductivity in anion conducting polymer thin films

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IMAGE: The first measurement of hydroxide conductivity and comparison in anion conducting polymer thin films. (X = OH and Br)
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Credit: Yuki Nagao from JAIST
Ishikawa, Japan - As decarbonization progresses rapidly in the world, fuel cells offer potentially higher electrical efficiency than conventional power-generating systems. Anion exchange membrane fuel cells offer advantages of using non-precious metal catalysts than proton exchange membrane fuel cells. One of the challenges of this next-generation fuel cell is to clarify the hydroxide ion conductivity in the ion conductive polymer around the electrode catalyst. The difficulty of studying the hydroxide ion conductivity at the electrode interface is that the hydroxide ion, which is a carrier, easily reacts with carbon dioxide in the air. To solve this problem, all evaluation devices were improved so that the sample did not come into contacting with air.

Japan , Yuki-nagao , Fangfang-wang , Dongjin-wang , Japan-advanced-institute-of-science , Accepted-article , Japan-advanced-institute , Associate-professor-yuki-nagao , ஜப்பான் , யூகி-நாகோ , ஏற்கப்பட்டது-கட்டுரை ,