AI Article Synopsis
- Li-air batteries are a strong candidate for future electronics due to their high energy density but struggle with cyclability in ambient air.
- Researchers developed Li-air batteries that can achieve 610 cycles by using low-density polyethylene film to prevent water erosion and a gel electrolyte with LiI, which enhances performance.
- The design allows for flexibility, making these batteries ideal for use in portable and wearable devices.
Article Abstract
The Li-air battery represents a promising power candidate for future electronics due to its extremely high energy density. However, the use of Li-air batteries is largely limited by their poor cyclability in ambient air. Herein, Li-air batteries with ultralong 610 cycles in ambient air are created by combination of low-density polyethylene film that prevents water erosion and gel electrolyte that contains a redox mediator of LiI. The low-density polyethylene film can restrain the side reactions of the discharge product of Li O to Li CO in ambient air, while the LiI can facilitate the electrochemical decomposition of Li O during charging, which improves the reversibility of the Li-air battery. All the components of the Li-air battery are flexible, which is particularly desirable for portable and wearable electronic devices.
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| http://dx.doi.org/10.1002/adma.201704378 | DOI Listing |
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