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有机自由基电池
Organic Radical Batteries
有机自由基电池(ORB)是利用稳定的有机自由基聚合物作为电极活性材料的一类新型可充电电池,具有快速充电速度和良好的循环稳定性。此外,有机自由基聚合物还可制成薄膜电池。ORB不含有毒的重金属,其充放电依赖于有机自由基如氮氧自由基的氧化和还原反应,不同于锂离子电池依靠锂离子的脱嵌和嵌入。ORB为环境友好型电池,可作为笔记本电脑、智能卡、传感器和无线电频率识别标签等设备的潜在电源。本文综述了ORB的构成、特征、充放电机理以及研究进展,分析了高性能有机自由基电池的开发动态,包括通过自由基聚合物的多阶充放电特点成倍增加电池的放电容量,通过电极材料的纳米掺杂提高电池的循环稳定性,并指出了高放电容量有机自由基聚合物的设计原理、ORB的发展趋势和潜在应用领域。
The organic radical battery(ORB) is a new class of rechargeable battery, which use stable organic radical polymers as an electrode-active materials in an electrode of batteries. ORB displays a rapid charging capability and good cycleability due to the high reactivity and reversibility of the radical reaction. Additionally, organic radical polymer is appropriate for forming the flexible thin film battery. ORB contains no harmful heavy metals, it charges and discharges by the oxidation and reduction of radical species such as a nitroxide radical, which is different from that of the Li-ion battery depend on deintercalation/intercalation of the lithium ions, ORB thus opens up a new field of ubiquitous devices with environmentally friendly battery. Because of its unique features, the ORB has a wide range of potential applications as a power source including laptop PCs, smart cards, sensors, intelligent papers, radio frequency identification tags and micro-sized devices. Present paper reviews the progress of organic radical battery, including the structures and compositions, charge/discharge reaction mechanisms and characteristics. At the same time, the developments of the high performance organic radical battery are discussed including the multi-stage charge/discharge characteristics of radical polymers increased the discharge capacity of the battery and the electrode material of nano-doped to improve the battery cycle stability. The development trends of high energy-density and environmental benign organic radical battery are also pointed out. Contents
1 Introduction
2 Structural, characteristics and charge/discharge mechanism of ORB
3 Progress in organic radical battery
4 Development of high energy density of ORB
4.1 Nano-doping of electron materials
4.2 Multi-stage charge and discharge properties
4.3 Design of high capacity of ORB
5 Conclusion
自由基聚合物
radical polymer
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