Thin, Flexible Secondary Li-Ion Paper Batteries
Thin, Flexible Secondary Li-Ion Paper Batteries
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DOI：
10.1021/nn1018158
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发表时间：
2010-10-01
期刊：
影响因子：
17.1
通讯作者：
Cui, Yi
中科院分区：
文献类型：
--
作者：
Hu, Liangbing;Wu, Hui;Cui, Yi
人们对薄而灵活的储能设备有着浓厚的兴趣，以满足现代社会对交互包装、射频传感和消费产品等应用的需求。在本文中，我们报道了一种以纸为隔膜，以自支撑碳纳米管薄膜为集电体的薄型柔性锂离子电池的新结构。电流收集器和锂离子电池材料通过层压工艺集成到一张纸上。该纸既可用作机械衬底，又可用作隔膜，其阻抗低于市售隔膜。碳纳米管薄膜用作阳极和阴极的集电器，方阻低(类似于5欧姆/平方英尺)，重量轻(类似于0.2 mg/cm(2))，并且具有极好的柔韧性。包装后，可充电的锂离子纸电池，尽管很薄(类似于300微米)，但具有强大的机械灵活性(能够弯曲到
There is a strong interest in thin, flexible energy storage devices to meet modern society needs for applications such as interactive packaging, radio frequency sensing, and consumer products. In this article, we report a new structure of thin, flexible Li-ion batteries using paper as separators and free-standing carbon nanotube thin films as both current collectors. The current collectors and Li-ion battery materials are integrated onto a single sheet of paper through a lamination process. The paper functions as both a mechanical substrate and separator membrane with lower impedance than commercial separators. The CNT film functions as a current collector for both the anode and the cathode with a low sheet resistance (similar to 5 Ohm/sq), lightweight (similar to 0.2 mg/cm(2)), and excellent flexibility. After packaging, the rechargeable Li-ion paper battery, despite being thin (similar to 300 mu m), exhibits robust mechanical flexibility (capable of bending down to