【摘 要】
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Battery technologies have obtained great attention due to their wide-ranging applications in present and emerging fields[1,2],and great progress in exploring no
【机 构】
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School of Physics and Electronics,Hunan University,Changsha 410082,China
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Battery technologies have obtained great attention due to their wide-ranging applications in present and emerging fields[1,2],and great progress in exploring novel battery technologies has been achieved[3,4].However,there is still huge room to develop new kinds of battery technologies with the appearance of new materials,technologies and ideas[5].Compared with some metal(e.g.,Li,Na,K,Mg,Zn)-based batteries,Al-based batteries have more advantages in cost and safety[6].In addition,some emerging metal-CO2 or N2 batteries with gas cathodes can not only provide energy storage,but also converse CO2 into liquid fuels,or N2 into NH3 to replace the energy-intensive Haber-Bosch process[7].Although some progresses in metal-gas batteries(Li-CO2 battery,Na-CO2 battery,K-CO2 battery,Li-N2 battery,Na-N2 battery)have been made[8,9],low-cost Al-N2 battery has rarely been reported.Recently,one attractive paper published in Energy&Environmental Science reported a rechargeable Al-N2 battery with efficient N2 fixation[10].This kind of batteries has two obvious advantages:low-cost energy storage and artificial N2 fixation.
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