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科学美国人60秒:可以穿上身的电池-托福听力下载

2017-01-13 17:57:00来源:科学美国人60秒

点击查看>>科学美国人60秒音频:可以穿上身的电池

  科学美国人60秒中英文翻译:可以穿上身的电池

  科学美国人60秒英文文本

  Morethan half of all Americans carry smartphones.

  Smartwatches and smartglasses maynot be far behind.

  What's not all that smart are the rigid batteries that powerour gadgets.

  But some may soon be replaced by ultra-thin, flexible batteries,sewn right into your clothes.

  Researchersbuilt a prototype out of conductive, nickel-coated polyester fabric.

  电池.jpg

  They applied lithium compounds to create the anode and cathode, and separated themwith a spandex-like material.

  The finished battery was just half a millimeterthick, with a capacity of 510 milliampere-hours per cubic inch—about a quarterthat of the battery in an iPhone 5.

  And the tighter the knit, the higher thecapacity.

  Of course, fabric wrinkles. But this batterycan too.

  Even after being folded 5500 times, the battery kept trucking.

  Thinfoil batteries, on the other hand, took just 70 folds to become really foiled.

  The findings appear in the journal Nano Letters.

  You don't even have to disrobe to charge this wearable battery.

  Researchers tacked flexible solar cells to it, so it can charge on the go.

  Might be just the thing to make polyester current again.

  中文翻译请点击下一页

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