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Researchers unveil mystery inside lithium oxygen batteries

Still Waters

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Posted (IP: Staff) ·

With a high energy density, Li-O2 batteries have become a state-of-the-art battery technology. Inside the Li-O2 battery, the generation and disintegration of the discharged product solid lithium peroxide (Li2O2) have a significant effect on the battery's performance. Previous research has shed little light on Li2O2 's form and distribution inside, leaving questions regarding the trend and contributing factor of internal Li2O2 's change in form and size unanswered.

Recently, a team led by Prof. Tan Peng from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences designed a carbon-coated anodic aluminum oxide (C-AAO) air electrode with a highly-ordered, array-like structure. The team gained new insights into the sudden death and reaction routes of Li-O2 batteries.


The work was published in Nano Letters.


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