衣服化身充電器
Hi-Tech Fabric Charges Devices On The Run - Literally!
衣服化身充電器
Over the past few years, researchers have come up with many innovative ways to use human kinetic energy - from powering soccer fields to playgrounds and classroom lights. Now some scientists want to take it to the next level with a new fabric that harnesses everyday motion to power personal devices!
過去幾年，從嘗試自發電球場和操場到教室燈控，科學家一直致力於找出利用人自身運動產生能源的新方法。現在，一些科學家想進一步研究出可以通過日常活動給電子產品充電的新布料。
The brainchild of a team of scientists from South Korea's Sungkyunkwan University and Australia's University of Wollongong, the electricity producing fabric takes advantage of the Triboelectric effect (TNG). Also known as friction energy it is the electricity created when two different kinds of surfaces rub against one another.
韓國成均館大學和澳大利亞烏龍崗大學的科學小組共同開啓此研究課題，發電的布料主要靠的是摩擦生電原理，即由不同的兩面互相摩擦產生電力。
While this sounds complicated, it is something we have all encountered. Remember the age-old trick of rubbing your head on a balloon to make your hair stand up? That is the triboelectric the surfaces rub together, the electrons move from one surface to the other. This leaves one object negatively charged (balloon) and the other positively charged (hair). Since opposites attract, the electrons in the hair "leap" toward the balloon causing it to "stand up."
雖然聽起來難了點，我們平時生活中都遇到過。還記得那個用氣球在頭上摩擦後會使你頭髮立起來的小把戲嗎？那就是摩擦生電原理。當兩面摩擦時，電子從一面傳到另一面。就導致了一個物體是負電極(氣球)而另一個是正電極（頭髮），由於異性相吸，頭髮上的電子就朝着氣球“跳“過去，然後就導致髮絲直立。
The WNTG not only eliminates the need for batteries, but also looks and feels like a regular fabric. An issue was that repeated wear or a trip to the laundry machine would wash away the silver and zinc coating. The researchers solved this problem by covering the layers with a thin film of plastic. In their laboratory trials they were able to use the fabric for more than 12,000 cycles.
科學家研究的這種可穿戴摩擦發電布料不僅代替了電池，看起來也和常規的布料沒什麼兩樣。就是經常穿或者洗滌後，表面的銀和鋅的塗層會慢慢掉下來。爲解決這個問題，研究者們用了很薄的一層塑料來覆蓋布料外層。他們實驗過這種布料大概能重複使用12000多次。
Sang-Woo Kim and this team who reported their invention in the March ACS journal say that the fabric's use goes beyond charging personal devices. They believe it could also be useful in a range of biomedical and other personal healthcare gizmos that need a reliable power source.
Sang-Woo Kim和他的團隊在三月的ACS週刊上報道過他們的發明，上面說這種布料用處遠非侷限於給個人電子用品充電，他們相信在需要穩定電源的生物醫療和其他個人健康小裝置上都能大展身手。
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