Fw: [新聞] 充電器可丟!Nokia、英科學家成功以聲音
※ [本文轉錄自 Gossiping 看板 #1JxT_3zu ]
作者: iSad56 (窩南果) 看板: Gossiping
標題: [新聞] 充電器可丟!Nokia、英科學家成功以聲音
時間: Fri Aug 15 18:24:00 2014
[科技新報]充電器可丟!Nokia、英科學家成功以聲音為手機充電
作者 MoneyDJ | 發布日期 2014 年 08 月 15 日 | 分類 能源科技
充電器可直接丟進垃圾桶了?諾基亞(Nokia)和英國科學家成功開發出一款用環境中充
斥的各種聲音充電的手機,以後只要坐在吵鬧的咖啡廳內、滿是人潮的列車上或是簡單通
個電話就能為手機充電。
Cult of Android、Gizmag 報導,諾基亞與倫敦大學瑪莉皇后學院(Queen Mary
University of London)的科學家們,成功運用壓電效應(piezoelectric effect),在
手機裝置中內建多顆奈米發電機)(nanogenerator),以氧化鋅奈米線(zinc oxide
nanowire)將空氣中震盪的音波轉化為電力。
壓電效應是四年前由南韓科學家發現的概念,主要是讓氧化鋅奈米線在受到某種機械式壓
迫後產生電流,這種奈米線相當敏感、連音波製造的震盪都能引發效應。然而,南韓科學
家當時還無法創造足夠電流為手機充電。
不過,諾基亞與瑪莉皇后學院的科學家已成功突破瓶頸,運用和諾基亞智慧機「Lumina
925 」同樣大小的能源採集原型機,成功以環境中的各種聲響產生最多 5 伏特的電流。
目前一支手機只要 5 伏特的電量就可供應一整天的用電需求。相較之下,南韓科學家當
時只能透過壓電效應產生 50 毫伏(millivolt)的電流。
目前這種充電方法仍在實驗階段,距離真正問世恐怕還要一段時間。
http://tinyurl.com/lca9uss
怪獸電力公司?
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