Synergy of carbonyl and azo chemistries for wide-temperature-range rechargeable aluminum organic batteries
Synergy of carbonyl and azo chemistries for wide-temperature-range rechargeable aluminum organic batteries
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DOI：
10.1016/j.nanoen.2022.107554
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发表时间：
2022-06
期刊：
影响因子：
17.6
通讯作者：
Chao Luo;Kaiqiang Qin;Sha Tan;Motahareh Mohammadiroudbari;Zhenzhen Yang;Xiao‐Qing Yang;E. Hu
中科院分区：
文献类型：
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作者：
Chao Luo;Kaiqiang Qin;Sha Tan;Motahareh Mohammadiroudbari;Zhenzhen Yang;Xiao‐Qing Yang;E. Hu
可充电铝有机电池（RAOBs）由于铝和有机资源的低成本、丰富性和高可持续性而具有开发成本效益和可持续性的能量存储装置的前景。在这里，我们设计并合成了一种氧化还原活性聚合物轴承羰基和偶氮基团作为阴极材料的RAOBs。该聚合物阴极具有高可逆比容量、上级循环稳定性、快速充电能力和宽工作温度范围（−40°C至100°C）。采用X射线光电子能谱（XPS）、对分布函数（PDF）分析和软X射线吸收近边结构（XANES）对RAOBs中的羰基和偶氮化学以及阴极电解质界面（CEI）结构进行了基本分析。我们证明了一个逐步的铝化/脱铝反应的羰基和偶氮基团的聚合物阴极和解开了一个Al 2 O3-和AlN-丰富的CEI，这是令人印象深刻的性能RAOBs的关键。
Rechargeable aluminum organic batteries (RAOBs) are promising for developing cost-effective and sustainable energy storage devices due to the low cost, abundance, and high sustainability of aluminum and organic resources. Here, we designed and synthesized a redox-active polymer bearing carbonyl and azo groups as a cathode material for RAOBs. The polymeric cathode exhibits a high reversible specific capacity, superior cyclic stability, fast charging capability, and a wide operation temperature range (−40°C to 100°C). X-ray photoelectron spectroscopy (XPS), pair distribution function (PDF) analysis, and soft X-ray absorption near edge structure (XANES) were employed to gain fundamental insight into the carbonyl and azo chemistries in RAOBs, as well as the cathode electrolyte interphase (CEI) structure. We demonstrated a step-by-step alumination/de-alumination reaction for carbonyl and azo groups in the polymer cathode and unraveled a Al2O3- and AlN-rich CEI, which is critical for the impressive performance of RAOBs.