<div data-page-id="doxcnSo89ZRDvdF3wyHyAfwoAPc" data-docx-has-block-data="true"> <div class="ace-line ace-line old-record-id-doxcncy2s8Q4K42w80yduv3orAg" style="text-align: justify;"><span class="p"><img src="https://info.compassedu.hk/sucai/content/1657869654614/1657869654614.png" width="807" height="604" /></span></div> <div class="ace-line ace-line old-record-id-doxcncy2s8Q4K42w80yduv3orAg" style="text-align: justify;"><span class="p">去年二月，冬季風(fēng)暴席卷美國(guó)，位于德克薩斯州的達(dá)拉斯氣溫驟降至攝氏負(fù)17度，造成當(dāng)?shù)卮笠?guī)模停電，最高峰時(shí)近一千萬(wàn)名德州居民受影響。 事實(shí)上，因寒冷天氣而停電限電的情況也常見于中國(guó)北方等寒冷地區(qū)。 供電不穩(wěn)除了歸因于低溫天氣外，太陽(yáng)能、風(fēng)能這些在晴天或有風(fēng)才能發(fā)電的再生能源由于很難儲(chǔ)存，一旦遇上極端天氣，便嚴(yán)重影響供電。</span></div> <div class="ace-line ace-line old-record-id-doxcnocmOQqUyKsiwg9njxqdTVe" style="text-align: justify;"><span class="p">&nbsp;</span></div> <div class="ace-line ace-line old-record-id-doxcnmwoUqIKS2UM0EI6ZJw4IXj" style="text-align: justify;"><span class="p">為此，香港中文大學(xué)（中大）機(jī)械與自動(dòng)化工程學(xué)系副教授<strong>盧怡君教授</strong>及其團(tuán)隊(duì)成功研發(fā)一種新型活性電解液，有助極端低溫天氣下安全、高效率地儲(chǔ)電，為全球各地社區(qū)帶來(lái)穩(wěn)定供電，提高他們的生活質(zhì)素。</span></div> <div class="ace-line ace-line old-record-id-doxcnQ0qwSaOiEO0oHBlQWabrKx" style="text-align: justify;"><span class="p">&nbsp;</span></div> <div class="ace-line ace-line old-record-id-doxcny0wO8IIMgIUCgDdNXBtv7d" style="text-align: justify;"><span class="p">盧教授表示：「得克薩斯州之前遭遇巨大暴風(fēng)雪，在寒冷天氣下，當(dāng)?shù)靥?yáng)能和風(fēng)力裝置無(wú)法如常運(yùn)作，電網(wǎng)供電大受影響。 要解決問題，可行方法之一是預(yù)先儲(chǔ)電作應(yīng)急之用，但現(xiàn)有的電池技術(shù)難以做到。 所以，我們決定去找一種能解決這難題的新材料。」</span></div> <div class="ace-line ace-line old-record-id-doxcnaUO2cIkKGgyAlHvASB4erg" style="text-align: justify;"><span class="p">&nbsp;</span></div> <div class="ace-line ace-line old-record-id-doxcnU8KgIOSykgKq4ZH9G3mgrh" style="text-align: justify;"><span class="p">「再生能源是很好的概念，但太陽(yáng)能和風(fēng)能這些綠色能源只能間歇性地產(chǎn)電，如將它們連接至電網(wǎng)或電動(dòng)汽車，未必可穩(wěn)定供電，我們必須想辦法將再生能源儲(chǔ)起來(lái)?！?她續(xù)說(shuō)。</span></div> <div class="ace-line ace-line old-record-id-doxcnQOMoUwKuQG8Wq80e9iUxNc" style="text-align: justify;"><span class="p">&nbsp;</span></div> <h2 class="heading-2 ace-line old-record-id-doxcneuWkeImCYuqS4iIjJcKhnd" style="text-align: justify;"><span class="p"><strong>新材料助低溫下有效儲(chǔ)電</strong></span></h2> <div class="ace-line ace-line old-record-id-doxcnMiEeukeggwkuq8gi4DSMrh" style="text-align: justify;"><span class="p">&nbsp;</span></div> <div class="ace-line ace-line old-record-id-doxcnIuEioyMU80g8WEPj7jUK4c" style="text-align: justify;"><span class="p">現(xiàn)時(shí)，再生能源主要利用鋰離子電池儲(chǔ)存電力，但這種電池易燃，如發(fā)生災(zāi)難性故障，可能會(huì)造成火災(zāi)。 而液流電池相對(duì)較安全，將電解液儲(chǔ)存在外部?jī)?chǔ)罐內(nèi)，通過(guò)泵和管道將電解液送到電池內(nèi)部進(jìn)行發(fā)電。 但問題是電解液需要恒溫環(huán)境，于冰點(diǎn)以下會(huì)凍結(jié)。 要令它運(yùn)作起來(lái)，需要耗能加熱，成本相對(duì)較昂貴。</span></div> <div class="ace-line ace-line old-record-id-doxcnOaG8qoI6UIkWiQLW5gaDIb">&nbsp;</div> <div class="image-uploaded gallery old-record-id-doxcnSIeg0E0iqWKiCa8NVGfVgc" data-type="image" data-ace-gallery-json="{&quot;items&quot;:[{&quot;uuid&quot;:&quot;1345c28b-a0df-4759-b43a-5ee28bb99254&quot;,&quot;height&quot;:587,&quot;width&quot;:1024,&quot;currHeight&quot;:587,&quot;currWidth&quot;:1024,&quot;natrualHeight&quot;:587,&quot;natrualWidth&quot;:1024,&quot;pluginName&quot;:&quot;imageUpload&quot;,&quot;scale&quot;:1,&quot;src&quot;:&quot;https%3A%2F%2Finternal-api-drive-stream.feishu.cn%2Fspace%2Fapi%2Fbox%2Fstream%2Fdownload%2Fall%2FboxcnbgbK0aVPYEDWakGRGIDihb%2F%3Fmount_node_token%3DdoxcnSIeg0E0iqWKiCa8NVGfVgc%26mount_point%3Ddocx_image&quot;,&quot;file_token&quot;:&quot;boxcnbgbK0aVPYEDWakGRGIDihb&quot;,&quot;image_type&quot;:&quot;image/jpeg&quot;,&quot;size&quot;:74718,&quot;comments&quot;:[]}]}"><img src="https://info.compassedu.hk/sucai/content/1657869693916/1657869693916.png" width="807" height="463" /></div> <div class="ace-line ace-line old-record-id-doxcnAQSmeaaCqm0iqkX74ztnRc" style="text-align: left;"><span class="h6">新型HPOM液流電池在低溫環(huán)境下應(yīng)用的設(shè)計(jì)原則，其電解液的特性包括（1）快速的多電子反應(yīng); （2）凝固點(diǎn)低至攝氏負(fù)35度; （3）高離子電導(dǎo)率及（4）高溶解度。</span></div> <div class="ace-line ace-line old-record-id-doxcnM4MGs2eQy4eIGUbtwbtbSd">&nbsp;</div> <div class="ace-line ace-line old-record-id-doxcnqS8GAG0Gouuqyiq6R1NSYb" style="text-align: justify;"><span class="p">「我們?cè)谙?，如能找到一種本身能在低溫甚至零度以下運(yùn)作的物料改良電解液，即使在極度寒冷地區(qū)，電池亦毋須加熱就能儲(chǔ)電?！?最終，盧教授的團(tuán)隊(duì)成功找到一種嶄新活性物質(zhì)多電子雜多酸 H(6)P(2)W(18)O(62)」（HPOM）作為藥引。 HPOM原本只是應(yīng)用于催化和儲(chǔ)存能量的材料，但團(tuán)隊(duì)發(fā)掘了它在低溫下發(fā)電的獨(dú)特潛能，并用之研發(fā)出一款新型活性電解液，能在低至攝氏負(fù)20度環(huán)境中仍不凍結(jié)。 這種新型HPOM液流電池高效能、高壽命，其高功率密度達(dá)282.4 mW cm(-2)，在攝氏負(fù)20度仍能穩(wěn)定運(yùn)作超過(guò)800個(gè)生命周期（逾1，200小時(shí)）而不衰減。</span></div> <div class="ace-line ace-line old-record-id-doxcnqS8GAG0Gouuqyiq6R1NSYb">&nbsp;</div> <div class="image-uploaded gallery old-record-id-doxcnSwkkSsUciwAmc5ABEUhFUf" data-type="image" data-ace-gallery-json="{&quot;items&quot;:[{&quot;uuid&quot;:&quot;c3e83a38-fe11-4445-875c-484c2da20f5e&quot;,&quot;height&quot;:273,&quot;width&quot;:1024,&quot;currHeight&quot;:273,&quot;currWidth&quot;:1024,&quot;natrualHeight&quot;:273,&quot;natrualWidth&quot;:1024,&quot;pluginName&quot;:&quot;imageUpload&quot;,&quot;scale&quot;:1,&quot;src&quot;:&quot;https%3A%2F%2Finternal-api-drive-stream.feishu.cn%2Fspace%2Fapi%2Fbox%2Fstream%2Fdownload%2Fall%2Fboxcnhz50lIqik0QxFCstmmIlXb%2F%3Fmount_node_token%3DdoxcnSwkkSsUciwAmc5ABEUhFUf%26mount_point%3Ddocx_image&quot;,&quot;file_token&quot;:&quot;boxcnhz50lIqik0QxFCstmmIlXb&quot;,&quot;image_type&quot;:&quot;image/jpeg&quot;,&quot;size&quot;:57199,&quot;comments&quot;:[]}]}"><img src="https://info.compassedu.hk/sucai/content/1657869704046/1657869704046.png" width="807" height="215" /></div> <div class="ace-line ace-line old-record-id-doxcnuwMacQOqeEkqyUx09sgmHd" style="text-align: center;"><span class="h6">新型HPOM液流電池分別在攝氏25度（左）及冷凍柜內(nèi)負(fù)20度（右）的原型制成品。 旁邊的水（H2O）展示作參考用途。</span></div> <div class="ace-line ace-line old-record-id-doxcn44GKQQw6WowwYHbXy8biQb">&nbsp;</div> <div class="ace-line ace-line old-record-id-doxcnO4Ky44qEy2oY2dQc1fIjtf" style="text-align: justify;"><span class="p">為何新型活性電解液不易凍結(jié)？ 盧教授說(shuō)：「這要回歸到化學(xué)的基本問題。 如果想阻止某些東西凍結(jié)，其一方法是改變水分子的連接。 當(dāng)水變成冰時(shí)，水分子會(huì)互相以氫鍵連接，如能破壞氫鍵，就能防止凍結(jié)。 HPOM本身可儲(chǔ)電，而且可以與水形成氫鍵和防止水積聚，以降低冰點(diǎn)，令電解液不易凍結(jié)?！?lt;/span></div> <div class="ace-line ace-line old-record-id-doxcnuwOIew8gmMIAXkyVlltIgP" style="text-align: justify;"><span class="p">&nbsp;</span></div> <div class="ace-line ace-line old-record-id-doxcn2m8iqwWmGqo4IxBmCDJaAh" style="text-align: justify;"><span class="p">在新技術(shù)幫助下，我們可以減少耗能去加熱電解液，甚至大多數(shù)情況下，毋須特別加熱處理?！?盧教授表示，HPOM更有潛力實(shí)現(xiàn)以往一些不可能任務(wù)，例如用于缺乏足夠空間設(shè)置加熱系統(tǒng)，但需要電池發(fā)電的地下電氣裝置。</span></div> <div class="ace-line ace-line old-record-id-doxcn2m8iqwWmGqo4IxBmCDJaAh">&nbsp;</div> <div class="image-uploaded gallery old-record-id-doxcnKy0OmSU6a8EcAAfTvGZgbb" data-type="image" data-ace-gallery-json="{&quot;items&quot;:[{&quot;uuid&quot;:&quot;d75c8e9b-6858-4e9e-ad8b-ccfd3afa4d40&quot;,&quot;height&quot;:683,&quot;width&quot;:1024,&quot;currHeight&quot;:683,&quot;currWidth&quot;:1024,&quot;natrualHeight&quot;:683,&quot;natrualWidth&quot;:1024,&quot;pluginName&quot;:&quot;imageUpload&quot;,&quot;scale&quot;:1,&quot;src&quot;:&quot;https%3A%2F%2Finternal-api-drive-stream.feishu.cn%2Fspace%2Fapi%2Fbox%2Fstream%2Fdownload%2Fall%2FboxcnvSgGLVjQP1Um4q2iLTzD4f%2F%3Fmount_node_token%3DdoxcnKy0OmSU6a8EcAAfTvGZgbb%26mount_point%3Ddocx_image&quot;,&quot;file_token&quot;:&quot;boxcnvSgGLVjQP1Um4q2iLTzD4f&quot;,&quot;image_type&quot;:&quot;image/jpeg&quot;,&quot;size&quot;:108788,&quot;comments&quot;:[]}]}"><img src="https://info.compassedu.hk/sucai/content/1657869712026/1657869712026.png" width="807" height="538" /></div> <div class="ace-line ace-line old-record-id-doxcnwi6csGoS0EOamog9wolyHg" style="text-align: center;"><span class="h6">盧怡君教授</span></div> <div class="image-uploaded gallery old-record-id-doxcnGC42OyoCmowUCMO4i0Pn9f" data-type="image" data-ace-gallery-json="{&quot;items&quot;:[{&quot;uuid&quot;:&quot;a6f55bef-9906-48a0-8fe7-1ae62fcbec36&quot;,&quot;height&quot;:683,&quot;width&quot;:1024,&quot;currHeight&quot;:683,&quot;currWidth&quot;:1024,&quot;natrualHeight&quot;:683,&quot;natrualWidth&quot;:1024,&quot;pluginName&quot;:&quot;imageUpload&quot;,&quot;scale&quot;:1,&quot;src&quot;:&quot;https%3A%2F%2Finternal-api-drive-stream.feishu.cn%2Fspace%2Fapi%2Fbox%2Fstream%2Fdownload%2Fall%2FboxcnXMDBWtwEErjv6ZRgKq1JEg%2F%3Fmount_node_token%3DdoxcnGC42OyoCmowUCMO4i0Pn9f%26mount_point%3Ddocx_image&quot;,&quot;file_token&quot;:&quot;boxcnXMDBWtwEErjv6ZRgKq1JEg&quot;,&quot;image_type&quot;:&quot;image/jpeg&quot;,&quot;size&quot;:84446,&quot;comments&quot;:[]}]}"><img src="https://info.compassedu.hk/sucai/content/1657869719562/1657869719562.png" width="807" height="538" /></div> <div class="ace-line ace-line old-record-id-doxcnUAqYY2SkQaSkgvNUiLmX8d" style="text-align: center;"><span class="h6">第一作者博士生艾飛展示新型HPOM液流電池在攝氏25度的原型制作品。</span></div> <div class="ace-line ace-line old-record-id-doxcn08cmgUggsWyIWoPPEp7Zgh">&nbsp;</div> <h2 class="heading-2 ace-line old-record-id-doxcnC6C08Ys2yW0owpgyXGfrEg" style="text-align: justify;"><span class="p"><strong>推動(dòng)技術(shù)商品化</strong></span></h2> <p style="text-align: justify;">&nbsp;</p> <div class="ace-line ace-line old-record-id-doxcnCY0Ww2Cgm08oagTC09Apcf" style="text-align: justify;"><span class="p">這項(xiàng)嶄新研發(fā)成果已刊登于著名國(guó)際學(xué)術(shù)期刊《Nature Energy》，更獲得科學(xué)界和能源行業(yè)的積極回應(yīng)。 盧教授說(shuō)：「學(xué)術(shù)界對(duì)于我們能從現(xiàn)有材料中發(fā)現(xiàn)新的特性嘖嘖稱奇，更有業(yè)界友好問我何時(shí)會(huì)大批量生產(chǎn)這款電解液。 在中國(guó)北方的嚴(yán)寒地區(qū)，電動(dòng)車因低溫天氣而無(wú)法正常運(yùn)作或只能開短程，電池的儲(chǔ)存量亦會(huì)急速下降，所以業(yè)界得知這項(xiàng)新技術(shù)時(shí)，他們都很興奮，希望它可以幫助當(dāng)?shù)鼐用瘛！?lt;/span></div> <div class="ace-line ace-line old-record-id-doxcniuGa0uWKiycoAlZDS0E1de" style="text-align: justify;"><span class="p">&nbsp;</span></div> <div class="ace-line ace-line old-record-id-doxcnsamQykQWIsy4mAnO3tr2qc" style="text-align: justify;"><span class="p">然而，要將技術(shù)商品化，需要循序漸進(jìn)。 盧教授預(yù)計(jì)兩年內(nèi)進(jìn)行大規(guī)模的原型制作示范，四年后將技術(shù)商品化，并說(shuō)：「我們要證明這項(xiàng)技術(shù)適合商品化，就要成功應(yīng)用在千瓦級(jí)功率的原型?！?lt;/span></div> </div>