研究人员开发了一种用水即可激活的一次性纸电池。研究人员建议，它可以用来为各种低功耗、一次性使用的电子产品供电。另外，该纸电池还能将电池对环境的影响降至最低。
A newly developed disposable paper battery promises to make a big impact on single-use electronics. The battery that has been demonstrated by researchers is biodegradable( 可生物降解的 ), made from sustainable materials, and cheap to put together. What’s more, it can be produced in a variety of shapes and sizes as needed.
新开发的一次性纸电池有望对一次性电子产品产生重大影响。研究人员证明的电池是可生物降解的，由可持续材料制成，组装起来很便宜。此外，它可以根据需要生产各种形状和尺寸。
To give an idea of the power, a two-cell battery made using the technology was enough to power an LCD alarm clock. While it won’t be charging up your computer anytime soon, there’s lots of potential for low-powered sensors. “We present a printed paper battery developed to power single-use disposable electronics and to reduce their environmental impact to the lowest level,” write the researchers in their published paper.
为了了解电源，使用该技术制造的两芯电池足以为LCD闹钟供电。虽然它不会很快给你的电脑充电，但低功率传感器有很大的潜力。研究人员在其发表的论文中写道: “我们提出了一种印刷纸电池，该电池旨在为一次性电子设备供电，并将其对环境的影响降至最低水平。”
“The battery is based on a metal-air electrochemical cell that uses Zn as a biodegradable metal in the anode( 正极 ), graphite( 石墨 ) in the cathode( 阴极 ).” The battery, made from sodium chloride salt-diffused( 氯化钠盐扩散的 ) paper, can measure as little as one square centimeter, and is based on printed inks. All that’s needed, then, is a small amount of water, as little as two drops. This dissolves the salts within the paper, and then activates the battery as they travel. The battery starts producing power around 20 seconds after water is added, according to the experiments carried out by the team.
“该电池基于金属-空气电化学电池，该电池使用锌作为阳极中的可生物降解金属，阴极中的石墨。”该电池由氯化钠盐漫散纸制成，可测量低至一平方厘米，并基于印刷油墨。那么，所需要的只是少量的水，只有两滴。这会溶解纸张中的盐，然后在电池移动时激活电池。根据该团队进行的实验，电池在加水后约20秒开始发电。
Although the performance decreases over time as the paper dries out, it can be topped up( 补足 ) to some extent with more water. The researchers say they want to improve the efficiency of the battery in the future, and get it working for longer.
尽管随着纸张变干，性能会随着时间的推移而降低，但可以在一定程度上补充更多的水。研究人员说，他们希望在未来提高电池的效率，并让它工作更长时间。
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