A biofuel cell that can generate electricity using only water is expected to be used as a new energy harvester for an emergency power supply. A new 4-series/4-parallel structured paper-substrate biofuel cell was prepared using a fuel supply paper preloaded with glucose and phosphate buffer salts. When a power generation test was conducted by supplying water to the fuel-preloaded paper, the paper-based biofuel cell produced an output approximately 90% (0.84 mW) of that obtained by supplying a phosphate buffer containing glucose as the electrolyte. The open-circuit voltage was 2.1 V, and an LED could be powered by simply supplying water to the cell without using a booster circuit.

可以仅使用水发电的生物燃料电池有望用作应急电源的新能源收集器。使用预先装有葡萄糖和磷酸盐缓冲盐的供油纸，制备了一种新的4系列/ 4平行结构的纸质生物燃料电池。当通过向预装燃料的纸供水来进行发电测试时，基于纸的生物燃料电池的输出约为通过供应包含葡萄糖作为电解质的磷酸盐缓冲液所获得的输出的90％（0.84 mW）。开路电压为2.1 V，可以通过简单地向电池供电而不用升压电路为LED供电。