麻豆人妻无码性色AV专区,亚洲AV极品无码专区在线观看,18禁美女黄网站色大片在线,秋霞无码久久久精品,宅男噜噜噜66网站在线观看,真人无码作爱免费视频网站,中国亚州女人69内射少妇,丝袜美腿亚洲一区二区,少妇高潮无套内谢麻豆传,国产精品无码AV片在线观看播

<center id="ojlzu"></center>
<rt id="ojlzu"></rt>
    <rt id="ojlzu"></rt>
  1. <rt id="ojlzu"></rt>
      1. Wuxi Gotele Metal Products Co., Ltd : CN EN
        首頁 >>新聞動態(tài) >>金屬行業(yè)新聞

        Cathode made from triangular macrocycle hosts complex metal cations in a rechargeable aluminium battery

        Scientists have designed a triangle-shaped molecule to make the first rechargeable aluminium battery that works with cations, getting one step closer to cheap and powerful batteries that could outperform lithium-ion systems.1

        The battery – which can be recharged thousands of times – is the first to run on aluminium complex cations. This solves a conundrum in existing aluminium-ion systems: they work with complex anions and consume a lot of electrolyte.

        Today, many portable devices are powered by lithium-ion batteries. But despite their popularity, such batteries are still expensive and may present safety issues. Aluminium devices are a promising alternative because the element – the anode material in such batteries – is the third most abundant in the Earth’s crust. It is not only cheap but also less reactive than lithium, which makes it safer.

        Each aluminium atom can release three electrons upon discharge, giving aluminium batteries a potentially high energy density. But Al3+ ions can interact with electrolyte and cathode, reducing the battery’s lifetime. In 2015, researchers developed a battery that instead stores chloroaluminate ions (AlCl4).2 However, a large amount of electrolyte was required to sustain chloride ion supply and battery operation, so finding a host electrode that accommodates all these ion remains a challenge.

        Researchers working with Jang Wook Choi at Seoul National University, Korea, and Nobel laureate Fraser Stoddart at Northwestern University, US, have now developed a cathode that can store AlCl2+ ions instead of AlCl4. This means only two chloride ions per aluminium ion are required, which makes this battery less electrolyte-demanding. This is the first time a battery runs on aluminium complex cations, explains Choi.

        Choi and his colleagues synthesised a redox-active triangular phenantrenequinone-based macrocycle and used it to build the electrodes. ‘[The macrocycle] maintains a stable layered superstructure for the insertion and extraction of aluminium complex ions,’ says Dong Jun Kim, University of New South Wales, Australia, who also worked on the battery.

        The material was tested in a two-electrode cell using an imidazolium chloride electrolyte and an aluminium anode. The new cathode showed a reversible capacity of 110mAh/g at a current rate of 0.1A/g, with almost 60% capacity retention after 5000 charge–discharge cycles.

        ’The use of abundant elements and demonstration of thousands of cycles shows that the system has some properties suitable for large-scale energy storage,’ says Doron Aurbach, an electrochemist at Bar-Ilan University, Israel. ‘My concern: The electrolyte solutions are based on ionic liquids, which are usually expensive.’

        首頁電話產(chǎn)品導航
        CN EN
        欧美熟妇色| 亚洲av永久中文在线| 办公室被吃奶好爽在线观看视频| 亚洲制服丝袜无码AV在线| 成人有色视频免费观看网址| 欧美日韩中文国产一区| 国产成人精品在线不卡| 男女啪啪无遮挡免费网站| 国产亚洲人成A在线V网站| 99久久婷婷国内精品| 日韩一区二区乱码视频| 国产午夜成人久久无码一区二区| 中国人成人免费观看视频| 亚洲第一视频欧美在线视频| 日本精品一区二区三区中文免费 | 黄色一区二区三区免费| 精品国产成人在线观看| 一本大道视频精品人妻| 久久综合一区二区三区| 欧美成人无码一区二区三区在线| 国产中文字幕精品免费| 国产精品av一二三区| 日韩精品有码在线视频| 国产久免费热视频在线| 免费午夜一区二区三区| 国产精品成熟老女人视频| 狼色精品人妻在线视频| 精品一区二区在线观看视频| 亚洲综合AV色婷婷国产野外| 日本男人精品一区二区| 日韩av免费在线高清观看| 人人超碰一区二区三区| 99在线观看国产精品| 日本亚洲一级中文字幕| 欧美一区二区三区福利| 日韩av综合在线观看| 精品一区二区三区无码免费视频| 免费乱码人妻系列无码专区 | 久久亚洲av五十路熟妇| 中文字幕人妻无码一夲道| 人妻人人添人妻人人爱|