Paper-based lactate biofuel cell array with high power output
Paper-based lactate biofuel cell array with high power output
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DOI：
10.1016/j.jpowsour.2021.229533
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发表时间：
2021-03
影响因子：
9.2
通讯作者：
Isao Shitanda;Yukiya Morigayama;Risa Iwashita;Himeka Goto;T. Aikawa;T. Mikawa;Yoshinao Hoshi;M. Itagaki;H. Matsui;S. Tokito;S. Tsujimura
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文献类型：
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作者：
Isao Shitanda;Yukiya Morigayama;Risa Iwashita;Himeka Goto;T. Aikawa;T. Mikawa;Yoshinao Hoshi;M. Itagaki;H. Matsui;S. Tokito;S. Tsujimura
可印刷的可穿戴乳酸盐生物传感器已经引起了极大的关注，并且可印刷的乳酸盐生物燃料电池作为这些传感器的合适的电源已经得到普及。然而，要实现这些传感器作为可穿戴设备的实际应用的适当电源，有必要提高乳酸盐生物燃料电池的输出。在这项研究中，我们制作了一个乳酸生物燃料电池，采用纸基板丝网印刷。拟议的纸基生物燃料电池（PBFC）具有一种新颖的电极设计，提供了一个开路电压约3.4 V时，使用一个阵列与六个电池串联。此外，乳酸盐生物燃料电池的6 × 6阵列，即，包括六个串联电池和六个并联电池的阵列产生4.3mW的功率输出。据我们所知，该设计的输出高于先前报道的乳酸盐生物燃料电池。所提出的电池阵列能够驱动蓝牙低能耗设备进行无线传输，而不需要升压电路。市售的活动计可以使用人造汗液驱动1.5小时，以给6 × 6阵列的PBMC提供燃料。
Printable wearable lactate biosensors have attracted significant attention, and printable lactate biofuel cells have gained popularity as suitable power supplies for these sensors. However, realizing an appropriate power supply for the practical application of these sensors as wearable devices, it is necessary to improve the output of lactate biofuel cells. In this study, we fabricated a lactate biofuel cell that employed paper substrate using screen printing. The proposed paper-based biofuel cell (PBFC) features a novel electrode design that affords an open circuit voltage of approximately 3.4 V when using an array with six cells in series. Furthermore, a 6 × 6 array of the lactate biofuel cell, i.e., an array comprising six cells in series and six cells in parallel, yielded a power output of 4.3 mW. To the best of our knowledge, this output of the proposed design is higher than those of previously reported lactate biofuel cells. Arrays of the proposed cell were capable of driving a Bluetooth low-energy device for wireless transmission, without requiring a booster circuit. A commercially available activity meter could be driven for 1.5 h using artificial sweat to fuel a 6 × 6 array of the PBFCs.