中國(guó)儲(chǔ)能網(wǎng)訊：2月18日消息，據(jù)外媒報(bào)道，韓國(guó)蔚山國(guó)家科學(xué)技術(shù)研究所（UNIST）教授將開(kāi)發(fā)一款可打印電池，用于谷歌眼鏡，預(yù)計(jì)五年內(nèi)實(shí)現(xiàn)量產(chǎn)。
韓國(guó)科學(xué)家已經(jīng)研發(fā)出世界上首款可彎曲鋰電池，這款電池即使彎曲或卷起來(lái)也不會(huì)爆炸。開(kāi)發(fā)者稱(chēng)，這款電池由韓國(guó)蔚山國(guó)家科學(xué)技術(shù)研究所（UNIST）和LG化學(xué)共同研發(fā)，從現(xiàn)在開(kāi)始的三年內(nèi)可以量產(chǎn)。
UNIST教授Lee Sang-young稱(chēng)，“這款電池一旦商業(yè)化，任何電子產(chǎn)品或設(shè)備都可以彎曲?！?
Lee算是“電池專(zhuān)家”，他對(duì)未來(lái)設(shè)備有宏偉的計(jì)劃，包括為谷歌提供可伸展電池。
李說(shuō)，直到現(xiàn)在可彎曲的電池尚不存在。即使是那些已經(jīng)被三星和LG開(kāi)發(fā)的也不是真正的彎曲。
電池拉了可穿戴設(shè)備的后腿，它們占據(jù)設(shè)備的大部分空間，技術(shù)發(fā)展的腳步是最慢的。
“這主要是存在安全問(wèn)題?！盠ee說(shuō)，“當(dāng)電池不斷彎曲或折疊，電池內(nèi)部的分離器就會(huì)變熱熔化，這就存在爆炸的危險(xiǎn)?！?
研究人員嘗試用不易燃燒的聚合電解質(zhì)代替分離器。
這個(gè)突破源自今年早些時(shí)候Lee的團(tuán)隊(duì)成功開(kāi)發(fā)一個(gè)靈活、耐熱塑料晶體電解質(zhì)。教授說(shuō)：“它比傳統(tǒng)的聚合電解質(zhì)薄10倍，可彎曲度高30倍?！?
這個(gè)測(cè)試顯示即使電池被折疊或卷起，它仍能正常工作，不會(huì)發(fā)熱或爆炸。
Lee的工作成果今年1月份被寫(xiě)進(jìn)德國(guó)科學(xué)期刊《先進(jìn)功能材料》(Advanced Functional Materials)。
他下一步是開(kāi)發(fā)可打印的電池，可以像果醬一樣擴(kuò)散到表面。它們是在電極兩段傳播諸如電解質(zhì)流體之類(lèi)的物資,然后暴露在紫外線(xiàn)下30秒。
他說(shuō)：“例如，當(dāng)電池?cái)U(kuò)散到衣物上，衣服邊就成了供能源?！?
他希望為谷歌眼鏡提供這種電池，用這些可彎曲電池可使谷歌眼鏡設(shè)計(jì)更增酷感。
一旦商業(yè)化，這些打印電池可以為電子產(chǎn)品和面料帶來(lái)突破性的設(shè)計(jì)創(chuàng)新。
Lee的團(tuán)隊(duì)去年年初在最初的技術(shù)開(kāi)發(fā)工作中取得成功，這項(xiàng)工作仍在繼續(xù)中。他預(yù)計(jì)在五年內(nèi)可以大規(guī)模生產(chǎn)，因?yàn)檠芯磕壳叭蕴幱诔跫?jí)階段。
（元器件交易網(wǎng)董蕾 譯）
外媒原文如下：
orean researchers have developed the world’s first bendable lithium-ion battery that will not explode even when bent or rolled up. The batteries, which were jointly developed by Ulsan National Institute of Science and Technology and LG Chem, can be mass-produced as early as three years from now, the developers said.
“Any electronic gadget or appliance can become flexible once this battery is commercialized,” said Lee Sang-young, a professor at UNIST, in an interview with The Korea Herald.
Lee is something of a “battery specialist” who has great plans for the future of appliances, including supplying Google with spreadable batteries.
Lee said that until now, curved batteries had not existed. Even those that have been developed by Samsung and LG are not truly curved, Lee said.
Batteries have long been a drag for wearable devices. They take up the most space in the gadget, and the pace of their technology development has been the slowest.
“It is mostly due to safety issues,” Lee said. “When a battery is constantly bent or folded, a separator inside the battery gets hot and melts, which poses the risk of explosion.”
Research has long been carried out on replacing the separator with a nonflammable polyelectrolyte.
The breakthrough came for Lee earlier this year when his team succeeded in developing a flexible, heat-resistant plastic crystal electrolyte. “It is 10 times thinner and 30 times more flexible than the conventional polyelectrolyte,” the professor said.
Tests showed that even when the battery was badly crumpled or rolled up, it still worked without heating up or exploding.
Lee’s work was published in Germany’s scientific journal Advanced Functional Materials in January.
The professor’s next step is to develop printable batteries, which can be spread onto surfaces like jam. They are made by spreading the fluid-like electrolytes on electrodes, then exposing them to ultraviolet rays for 30 seconds.
“For instance, when the batteries are spread on fabrics, your clothes can be a source of power supply,” he said.
He hopes to supply them to Google Glass, saying that the flexible use of these batteries would make the glasses much cooler in design.
Once commercialized, these printable batteries can bring breakthrough design innovation to electronics and even to fabrics.
Lee’s team succeeded in the initial technology development early last year and is still working on it. He expected mass production to be possible in five years as research is still at an early stage.
