A hyper-branched polymer (HBP) electrolyte is synthesized for rechargeable lithium-air (Li-air) battery cell and experimentally evaluated its performance in actual battery cell environment. Several real-world battery cells were fabricated with synthesized HBP electrolyte, pure lithium metal as anode and an oxygen permeable air cathode to evaluate reproducibility of the rechargeable Li-air battery cell. The effect of various conditions such as various HBP based electrolytes, discharge current −0.1~0.5 mA, cathode preparation processes and carbon contents on the battery cell performance were experimentally evaluated using the fabricated battery cells under dry air condition. Detailed HBP electrolyte synthesis procedures and experimental performance evaluation of Li-air battery cell for various conditions are presented. The experimental results showed that different conditions and processes significantly affect the Li-air battery performance. Upon taking into account the effect of different conditions and processes, optimized HBP electrolyte materials, cathode process and conditions were determined. Several Li-air battery cells were fabricated with optimized conditions and optimized battery cell materials to determine the reproducibility and performance consistency. Experimental results showed that over 55–65 h of discharge occurred over 2.5 V terminal cell voltage with all three optimized Li-air battery cells. It implied that the optimized Li-air battery cells were reproducible and were able to hold charge over 2.5 V for more than 2 days. Experimental results of the Li-air battery cell with further refined optimized materials revealed that the battery cell can discharge more than 10 days (i.e., more than 250 h) at or above 2.0 V. The experimental results also showed that the Li-air battery discharge time got shorter as the discharge-charge cycle increases due to increase in internal resistances of battery cell materials. The experimental results confirmed that the lithium-air battery cell can be reproduced without loss of performance and can hold charge more than 10 days at or over 2.0 V. The investigation results obtained may usher a pathway to manufacture a long-life rechargeable Li-air battery cell in the near future.

合成了超支化聚合物（HBP）电解质，用于可再充电锂-空气（Li-air）电池，并通过实验评估了其在实际电池环境中的性能。使用合成的HBP电解质，纯锂金属作为阳极和可渗透氧气的空气阴极制造了数个现实世界的电池，以评估可充电锂空气电池的重现性。使用制造的电池在干燥空气条件下，通过实验评估了各种条件，例如各种基于HBP的电解液，放电电流-0.1〜0.5 mA，阴极制备工艺和碳含量对电池性能的影响。提出了详细的HBP电解质合成程序和锂空气电池在各种条件下的实验性能评估。实验结果表明，不同的条件和工艺对锂空气电池的性能有明显影响。考虑到不同条件和工艺的影响，确定了最佳的HBP电解质材料，阴极工艺和条件。用优化的条件和优化的电池组电池材料制造了几节锂空气电池组，以确定可重复性和性能一致性。实验结果表明，对于所有三个优化的锂空气电池，在2.5 V终端电池电压下都会发生55-65 h以上的放电。这表明优化的锂空气电池具有可重现性，并且能够在2.5 V以上的电压下保持2天以上。具有进一步精制优化材料的锂空气电池的实验结果表明，该电池在2.0 V或更高电压下可以放电10天以上（即，超过250小时）。实验结果还表明，锂空气电池随着电池单元材料的内阻的增加，随着充放电循环的增加，放电时间变短。实验结果证实，该锂空气电池可以在不损失性能的情况下进行复制，并且在2.0 V或更高电压下可以保持10天以上的充电。所获得的研究结果可能为制造长寿命可充电锂空气提供了一条途径。电池在不久的将来。实验结果还表明，随着电池单元材料内阻的增加，随着充放电周期的增加，锂空气电池的放电时间缩短。实验结果证实，该锂空气电池可以在不损失性能的情况下进行复制，并且在2.0 V或更高电压下可以保持10天以上的充电。所获得的研究结果可能为制造长寿命可充电锂空气提供了一条途径。电池在不久的将来。实验结果还表明，随着电池单元材料内阻的增加，随着充放电周期的增加，锂空气电池的放电时间缩短。实验结果证实，该锂空气电池可以在不损失性能的情况下进行复制，并且在2.0 V或更高电压下可以保持10天以上的充电。所获得的研究结果可能为制造长寿命可充电锂空气提供了一条途径。电池在不久的将来。