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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Transparent lithium-ion batteries
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Transparent lithium-ion batteries

机译：透明锂离子电池

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摘要

Transparent devices have recently attracted substantial attention. Various applications have been demonstrated, including displays, touch screens, and solar cells; however, transparent batteries, a key component in fully integrated transparent devices, have not yet been reported. As battery electrode materials are not transparent and have to be thick enough to store energy, the traditional approach of using thin films for transparent devices is not suitable. Here we demonstrate a grid-structured electrode to solve this dilemma, which is fabricated by a microfluidics-assisted method. The feature dimension in the electrode is below the resolution limit of human eyes, and, thus, the electrode appears transparent. Moreover, by aligning multiple electrodes together, the amount of energy stored increases readily without sacrificing the transparency. This results in a battery with energy density of 10 Wh/L at a transparency of 60%. The device is also flexible, further broadening their potential applications. The transparent device configuration also allows in situ Raman study of fundamental electrochemical reactions in batteries.
机译：透明设备最近引起了广泛关注。已经展示了各种应用，包括显示器，触摸屏和太阳能电池；但是，尚未报道透明电池，它是完全集成的透明设备中的关键组件。由于电池电极材料不是透明的，并且必须足够厚才能存储能量，因此将薄膜用于透明设备的传统方法不适合。在这里，我们演示了解决这种难题的网格结构电极，它是通过微流体辅助方法制造的。电极中的特征尺寸低于人眼的分辨率极限，因此，电极显得透明。此外，通过将多个电极对准在一起，在不牺牲透明度的情况下容易增加能量的存储量。这导致电池的能量密度为10 Wh / L，透明度为60％。该设备还具有灵活性，进一步扩展了其潜在的应用范围。透明的器件配置还可以对电池中的基本电化学反应进行原位拉曼研究。

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