Researchers Design Highly Efficient Aluminum–Graphite Dual-Ion Batteries at Low Cost

双离子电池（DIB），其中阳离子和阴离子参与电化学氧化还原反应，是满足商业应用成本效益的需求的最潜在候选者之一。

与通常的锂离子电池（LIBS）相比，它们具有许多优势，例如出色的安全性，高工作电压和生态友好性。

Researchers, under the guidance of Prof. Tang Yongbing and Dr Zhou Xiaolong, at the Shenzhen Institutes of Advanced Technology (SIAT) of theChinese Academy of Sciences, in collaboration with other researchers published an invited review article titled “Beyond Conventional Batteries: Strategies towards Low-Cost Dual-Ion Batteries with High Performance” inAngewandte Chemie国际版。

DIBs are of great interest across the world due to their ease of recycling, low cost, low environmental impact, high working voltage, and so on. But the conventional double-carbon structure of DIBs possesses a low energy density owing to the limitation of theoretical capacity and compaction density of graphite.

2016年，Tang教授的团队开发了一种新的铝制二元，能够将电极组合起来。它使用铝箔制作了一种新的，便宜，高效的铝制DIB系统，该铝箔较便宜且环保，不仅是阴极活动材料，而且还作为当前的收集器和石墨作为阳极材料。

The anion and cathode are similar to the two lovers in a Chinese fairy tale,考赫德和织布工女孩, who could meet only once in a year on a magpie bridge in the sky. The two lovers are parted by the vast Milky Way Galaxy (electrolytes); however, using magpie bridge (ion channel), they contact each other (discharge), and later go back to their original places (charge). This sequence goes on repeatedly.

LIBS和DIB之间的主要差异如下：充电时，在阴离子中插入阴极时发生，导致不同的电化学能量存储机制和高工作电压。电解质被认为是DIB中的活性材料，因为阴离子来自电解质。欧洲杯足球竞彩因此，在电荷 - 放电过程中，阳离子和阴离子被分离并在电解质中聚集在一起。

研究人员还将集成设计的发现扩展到碱性富含碱（碱）金属离子电池系统。研究人员有效地开发了廉价且环保的基于钠的DIB（基于钾离子的DIB）以及在环境温度下在环境温度下的高加工电压钙离子电池，为工业应用提供了这样的工业应用。集成技术。