Power harvesting for wearable electronics using fabric electrochemistry
Power harvesting for wearable electronics using fabric electrochemistry
复制标题
使用织物电化学为可穿戴电子产品收集能量
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
C. Sen
中科院分区：
文献类型：
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作者：
R. Vilkhu;B. DeLong;A. Kiourti;Piya Das Ghatak;Shomita S Mathew;C. Sen
我们提出了一种用于可穿戴电子设备的能量收集的新方法，该方法基于被身体渗出物（汗液，伤口渗出物等）潮湿的表皮电化学敷料。直流电的产生是通过电化学过程实现的，利用人体渗出液作为电解质，使电子从银转移到锌印刷点。与现有的能量收集方法（例如，射频或太阳能）相反，所提出的方法是完全灵活的，不需要庞大的电路或任何类型的刚性组件。提出了概念验证结果，展示了：a) μW范围内不显眼的直流发电，b)无电池表皮传感器，可以识别其表面下的开放性伤口。总的来说，这项技术有望为军事、医疗、体育和紧急应用等领域的可穿戴电子设备供电。
We present a new method of power harvesting for wearable electronics that is based on epidermal electrochemical dressings dampened by a bodily exudate (sweat, wound exudate, etc.). Generation of DC power is achieved via an electrochemical process that enables transfer of electrons from silver-to zinc-printed dots using the bodily exudate as an electrolyte. Contrary to existing power harvesting methods (e.g., RF or solar), the proposed method is fully-flexible and does not require bulky circuits or any sort of rigid components. Proof-of-concept results are presented, demonstrating: a) unobtrusive DC power generation in the μW range, and b) a batteryless epidermal sensor that identifies open wounds underneath its surface. Overall, this technology is expected to be of utmost significance for powering wearable electronics in military, healthcare, sports, and emergency applications, among others.