{"id":36133,"date":"2023-11-15T04:00:00","date_gmt":"2023-11-15T04:00:00","guid":{"rendered":"https:\/\/eodishasamachar.com\/en\/2023\/11\/15\/hku-engineering-team-unveils-innovative-battery-design-that-promises-high-energy-density-and-sustainability\/"},"modified":"2023-11-15T07:07:46","modified_gmt":"2023-11-15T07:07:46","slug":"hku-engineering-team-unveils-innovative-battery-design-that-promises-high-energy-density-and-sustainability","status":"publish","type":"post","link":"https:\/\/eodishasamachar.com\/en\/2023\/11\/15\/hku-engineering-team-unveils-innovative-battery-design-that-promises-high-energy-density-and-sustainability\/","title":{"rendered":"HKU Engineering team unveils innovative battery design that promises high energy density and sustainability"},"content":{"rendered":"<p style=\"text-align: justify;\">\n<div lang=\"en\" style=\"text-align: justify;\">\n<p>HONG KONG SAR &#8211;<br \/>\n<a href=\"https:\/\/www.media-outreach.com\" rel=\"sponsored\">Media OutReach<\/a> &#8211; 15 November 2023 &#8211; A research team led by Professor Dennis Y.C. Leung of the University of Hong Kong (HKU)&#8217;s Department of Mechanical Engineering has achieved a major breakthrough in battery technology with the development of a high-performance quasi-solid-state magnesium-ion (Mg-ion) battery. This innovative design offers a sustainable, safe, and high-energy-density alternative to conventional lithium-ion batteries, addressing the limitations of material scarcity and safety concerns.<img loading=\"lazy\" class=\"size-medium wp-image-36134 alignleft\" src=\"https:\/\/eodishasamachar.com\/en\/wp-content\/uploads\/2023\/11\/Figure1-300x157.jpg\" alt=\"\" width=\"300\" height=\"157\" srcset=\"https:\/\/eodishasamachar.com\/en\/wp-content\/uploads\/2023\/11\/Figure1-300x157.jpg 300w, https:\/\/eodishasamachar.com\/en\/wp-content\/uploads\/2023\/11\/Figure1-768x401.jpg 768w, https:\/\/eodishasamachar.com\/en\/wp-content\/uploads\/2023\/11\/Figure1.jpg 800w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<figure class=\"roo-ed-selection\" style=\"display: block; width: 100%; margin: 0px; padding: 0px; text-align: center;\" data-width=\"100%\" data-caption=\"(A) Schematic figure of the battery mechanism: the quasi-solid-state electrolyte enhances battery performance by regulating ion\n &lt;br&gt;\n \" data-caption-display=\"block\"><noscript><img src=\"https:\/\/images.media-outreach.com\/428885\/Figure1.jpg\" alt=\"(A) Schematic figure of the battery mechanism: the quasi-solid-state electrolyte enhances battery performance by regulating ion\" style=\"width: 100%;margin: 0px\"\/><\/noscript><\/figure>\n<p><i>(A) Schematic figure of the battery mechanism: the quasi-solid-state electrolyte enhances battery performance by regulating ion storage. (B) Voltage profile of the QSMB compared to a battery using traditional aqueous solution: the suppression of proton storage facilitates high-voltage Mg-ion insertion in the cathode. (C) Literature comparison of current Mg-ion batteries including quasi-solid-state Mg-ion batteries (QSMB), aqueous Mg-ion batteries (AMB) and non-aqueous Mg-ion batteries (NAMB).<\/p>\n<p><\/i><\/p>\n<p>Recently featured in<br \/>\n<em><i>Science Advances<\/i><\/em> under the title &#8220;Next-generation magnesium-ion batteries: The quasi-solid-state approach to multivalent metal ion storage&#8221;, the new Mg-ion battery has the potential to revolutionize the industry. &#8220;It is a game-changing development,&#8221; said Professor Leung.<\/p>\n<p>In recent years, Mg-ion batteries have emerged as a potential solution in light of lithium-ion batteries&#8217; limitations. However, the road to developing efficient Mg-ion batteries has been fraught with challenges, including the need to overcome the narrow electrochemical window in aqueous or water-based systems, and the poor ionic conductivity in non-aqueous systems.<\/p>\n<p>Addressing these obstacles, Professor Leung&#8217;s team developed a water-in-salt Mg-ion battery with an operating voltage above 2 V. Yet, it still lags behind non-aqueous counterparts due to the dominance of proton over Mg-ion storage in the cathode.<\/p>\n<p>&#8220;Hydrogen ions, or protons, are smaller and lighter compared to the metal ions. Because of their size, protons can easily get into the battery&#8217;s cathode structure. However, this creates a problem because protons and Mg ions compete for space, which severely limits how much energy the battery can store and how long it can last,&#8221; said Sarah Leong, a PhD student in Professor Leung&#8217;s team and the study&#8217;s first author.<\/p>\n<p>The tireless efforts of the team finally bore fruit, however, with the introduction of the quasi-solid-state magnesium-ion battery (QSMB), an innovative battery design that uses a polymer-enhanced electrolyte to control the competition between protons and metal ions.<\/p>\n<p>QSMB boasts an impressive voltage plateau at 2.4 V and an energy density of 264 W\u00b7h kg\u207b\u00b9, surpassing the performance of current Mg-ion batteries and almost matching the performance of Li-ion batteries.<\/p>\n<p>Professor Leung stressed: &#8220;Our quasi-solid-state magnesium-ion battery combines the best of both worlds, offering the high voltage of non-aqueous systems and the safety and cost-effectiveness of aqueous systems. It represents a major step forward in the development of high-performance magnesium-ion batteries.&#8221;<\/p>\n<p>To put the QSMB to the ultimate test, the research team conducted extensive cycling tests, with astonishing results. Even under extreme conditions of subzero temperatures (-22\u00b0C), the QSMB retained an impressive 90% of its capacity after 900 cycles. The battery is also non-flammable and resistant to pressure over 40 atmospheric pressure. This level of durability and performance makes the QSMB a promising candidate for consumer electronics, even in colder climates.<\/p>\n<p>Dr Wending Pan, a Research Assistant Professor in Professor Leung&#8217;s team, believes the QSMB technology has the potential to reshape the landscape of energy storage and power our world sustainably.<\/p>\n<p>He said: &#8220;The advanced electrolyte development strategy presented in our research holds potential beyond magnesium-ion batteries, extending to other multivalent metal ion batteries, such as zinc-ion and aluminium-ion batteries. We believe that this study will pave the way for the next generation of energy storage solutions that are not only efficient but also environmentally friendly.&#8221;<\/p>\n<p>Link to the paper:<br \/>\n<a href=\"https:\/\/www.science.org\/doi\/10.1126\/sciadv.adh1181\" rel=\"sponsored\">https:\/\/www.science.org\/doi\/10.1126\/sciadv.adh1181<\/a><\/p>\n<p><b>Hashtag: <\/b>#HKU<\/p>\n<p><em>The issuer is solely responsible for the content of this announcement.<\/em><\/p>\n<p><img loading=\"lazy\" style=\"width: 1px; height: 1px;\" src=\"http:\/\/track.media-outreach.com\/index.php\/WebView\/260325\/4121\" alt=\"\" width=\"1\" height=\"1\" \/><\/p>\n<\/div>\n<p style=\"text-align: justify;\">\n\n<p><a href=\"https:\/\/www.media-outreach.com\/news\/hong-kong\/2023\/11\/15\/260325\/\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>HONG KONG SAR &#8211; Media OutReach &#8211; 15 November 2023 &#8211; A research team led by Professor Dennis Y.C. Leung of the University of Hong Kong (HKU)&#8217;s Department of Mechanical Engineering has achieved a major breakthrough in battery technology with the development of a high-performance quasi-solid-state magnesium-ion (Mg-ion) battery. This innovative design offers a sustainable, &hellip;<\/p>\n","protected":false},"author":1,"featured_media":36134,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[60],"tags":[],"_links":{"self":[{"href":"https:\/\/eodishasamachar.com\/en\/wp-json\/wp\/v2\/posts\/36133"}],"collection":[{"href":"https:\/\/eodishasamachar.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/eodishasamachar.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/eodishasamachar.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/eodishasamachar.com\/en\/wp-json\/wp\/v2\/comments?post=36133"}],"version-history":[{"count":1,"href":"https:\/\/eodishasamachar.com\/en\/wp-json\/wp\/v2\/posts\/36133\/revisions"}],"predecessor-version":[{"id":36144,"href":"https:\/\/eodishasamachar.com\/en\/wp-json\/wp\/v2\/posts\/36133\/revisions\/36144"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/eodishasamachar.com\/en\/wp-json\/wp\/v2\/media\/36134"}],"wp:attachment":[{"href":"https:\/\/eodishasamachar.com\/en\/wp-json\/wp\/v2\/media?parent=36133"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/eodishasamachar.com\/en\/wp-json\/wp\/v2\/categories?post=36133"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/eodishasamachar.com\/en\/wp-json\/wp\/v2\/tags?post=36133"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}