{"id":20485,"date":"2025-10-08T10:52:35","date_gmt":"2025-10-08T02:52:35","guid":{"rendered":"https:\/\/battery9999.com\/en\/?p=20485"},"modified":"2025-10-08T10:52:35","modified_gmt":"2025-10-08T02:52:35","slug":"concrete-battery-developed-at-mit-now-packs-10-times-the-power","status":"publish","type":"post","link":"https:\/\/battery9999.com\/en\/concrete-battery-developed-at-mit-now-packs-10-times-the-power\/","title":{"rendered":"Concrete \u201cbattery\u201d developed at MIT now packs 10 times the power"},"content":{"rendered":"<p>October 1, 2025<!--more--><\/p>\n<div class=\"news-article--full-width-wrapper\">\n<div class=\"news-article--full-width-wrapper-inner\">\n<div class=\"news-article--images-gallery--wrapper\">\n<div class=\"news-article--images-gallery flickity-enabled\" tabindex=\"0\">\n<div class=\"flickity-viewport\">\n<div class=\"flickity-slider\">\n<div class=\"news-article--image-item is-selected\">\n<div class=\"news-article--media--image--file\"><img loading=\"lazy\" decoding=\"async\" class=\"ondemand loaded\" src=\"https:\/\/news.mit.edu\/sites\/default\/files\/styles\/news_article__image_gallery\/public\/images\/202509\/concrete-arch-00.png?itok=855q1rre\" alt=\"Photo of a miniature concrete arch: Rectangular, black electrodes form an arch between two concrete blocks, with metal weights on top of the arch. The system is connected to and powers a small green LED.\" width=\"900\" height=\"600\" data-src=\"\/sites\/default\/files\/styles\/news_article__image_gallery\/public\/images\/202509\/concrete-arch-00.png?itok=855q1rre\" data-ll-status=\"loaded\" \/><\/div>\n<div class=\"news-article--media--image--descr--wrapper\">\n<div class=\"news-article--media--image--descr\">\n<div class=\"news-article--media--image--caption\">\n<div class=\"visually-hidden\"><span class=\"label\">Caption<\/span><span class=\"visually-hidden\">:<\/span><\/div>\n<p>An electron-conducting carbon concrete (ec\u00b3)-based arch structure integrates supercapacitor electrodes for dual functionality. The prototype demonstrates both structural load bearing and the ability to power an LED, with the light\u2019s intensity varying under applied load, highlighting the potential for real-time structural health monitoring via the supercapacitor.<\/p><\/div>\n<div class=\"news-article--media--image--credits\">\n<div class=\"visually-hidden\"><span class=\"label\">Credits<\/span><span class=\"visually-hidden\">:<\/span><\/div>\n<p>Image courtesy of the MIT EC\u00b3 Hub.<\/p><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"news-article--image-item\" aria-hidden=\"true\">\n<div class=\"news-article--media--image--file\"><img loading=\"lazy\" decoding=\"async\" class=\"ondemand loaded\" src=\"https:\/\/news.mit.edu\/sites\/default\/files\/styles\/news_article__image_gallery\/public\/images\/202510\/tower2.png?itok=Q9ZG_PrC\" alt=\"A small tower of stacked black ec^3 slabs, with layers sandwiched by gray mortar. External connections are a 12V computer fan, 5V USB port, and 5V console\" width=\"754\" height=\"600\" data-src=\"\/sites\/default\/files\/styles\/news_article__image_gallery\/public\/images\/202510\/tower2.png?itok=Q9ZG_PrC\" data-ll-status=\"loaded\" \/><\/div>\n<div class=\"news-article--media--image--descr--wrapper\">\n<div class=\"news-article--media--image--descr\">\n<div class=\"news-article--media--image--caption\">\n<div class=\"visually-hidden\"><span class=\"label\">Caption<\/span><span class=\"visually-hidden\">:<\/span><\/div>\n<p>A 12-volt ec\u00b3 supercapacitor prototype is made by stacking ec\u00b3 electrodes sandwiched by porous separators soaked in electrolyte. It powered a 12V computer fan and a 5V video game console via USB.<\/p><\/div>\n<div class=\"news-article--media--image--credits\">\n<div class=\"visually-hidden\"><span class=\"label\">Credits<\/span><span class=\"visually-hidden\">:<\/span><\/div>\n<p>Image courtesy of the MIT ec\u00b3 hub, from the PNAS paper.<\/p><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"news-article--images-gallery--nav\">\n<p class=\"news-article--images-gallery--nav--inner\"><button class=\"news-article--images-gallery--nav--button news-article--images-gallery--nav--button--previous disabled\" aria-disabled=\"true\"><span class=\"visually-hidden\">Previous image<\/span><\/button>\u00a0<button class=\"news-article--images-gallery--nav--button news-article--images-gallery--nav--button--next\" aria-disabled=\"false\"><span class=\"visually-hidden\">Next image<\/span><\/button><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"news-article--content\">\n<div class=\"news-article--content--body\">\n<div class=\"news-article--content--body--inner\">\n<div class=\"paragraph paragraph--type--content-block-text paragraph--view-mode--default\">\n<p>Concrete already builds our world, and now it\u2019s one step closer to powering it, too. Made by combining cement, water, ultra-fine carbon black (with nanoscale particles), and electrolytes, electron-conducting carbon concrete (ec<sup>3<\/sup>, pronounced \u201ce-c-cubed\u201d) creates a conductive \u201cnanonetwork\u201d inside concrete that could enable everyday structures like walls, sidewalks, and bridges to store and release electrical energy. In other words, the concrete around us could one day double as giant \u201cbatteries.\u201d<\/p>\n<p>As MIT researchers\u00a0<a href=\"https:\/\/www.pnas.org\/doi\/10.1073\/pnas.2511912122\">report in a new\u00a0<em>PNAS<\/em>\u00a0paper<\/a>, optimized electrolytes and manufacturing processes have increased the energy storage capacity of the latest ec<sup>3<\/sup>\u00a0supercapacitors by an order of magnitude. In 2023, storing enough energy to meet the daily needs of the average home\u00a0<a href=\"https:\/\/news.mit.edu\/2023\/mit-engineers-create-supercapacitor-ancient-materials-0731\">would have required<\/a>\u00a0about 45 cubic meters of ec<sup>3<\/sup>, roughly the amount of concrete used in a typical basement. Now, with the improved electrolyte, that same task can be achieved with about 5 cubic meters, the volume of a typical basement wall.<\/p>\n<p>\u201cA key to the sustainability of concrete is the development of \u2018multifunctional concrete,\u2019 which integrates functionalities like this energy storage,\u00a0<a href=\"https:\/\/news.mit.edu\/2023\/roman-concrete-durability-lime-casts-0106\">self-healing<\/a>, and\u00a0<a href=\"https:\/\/news.mit.edu\/2023\/3-questions-hessam-azarijafari-leveraging-carbon-uptake-lower-concretes-carbon-footprint-0331\">carbon sequestration<\/a>. Concrete is already the world\u2019s most-used construction material, so why not take advantage of that scale to create other benefits?\u201d asks Admir Masic, lead author of the new study,\u00a0<a href=\"https:\/\/eccube.mit.edu\/\">MIT Electron-Conducting Carbon-Cement-Based Materials Hub<\/a>\u00a0(EC\u00b3 Hub) co-director, and associate professor of civil and environmental engineering (CEE) at MIT.<\/p>\n<p>The improved energy density was made possible by a deeper understanding of how the nanocarbon black network inside\u00a0ec<sup>3<\/sup>\u00a0functions and interacts with electrolytes. Using focused ion beams for the sequential removal of thin layers of the\u00a0ec<sup>3<\/sup>\u00a0material, followed by high-resolution imaging of each slice with a scanning electron microscope (a technique called FIB-SEM tomography), the team across the EC\u00b3 Hub and\u00a0<a href=\"https:\/\/cshub.mit.edu\/\">MIT Concrete Sustainability Hub<\/a>\u00a0was able to reconstruct the conductive nanonetwork at the highest resolution yet. This approach allowed the team to discover that the network is essentially a fractal-like \u201cweb\u201d that surrounds ec<sup>3<\/sup>\u00a0pores, which is what allows the electrolyte to infiltrate and for current to flow through the system.<\/p>\n<p>\u201cUnderstanding how these materials \u2018assemble\u2019 themselves at the nanoscale is key to achieving these new functionalities,\u201d adds Masic.<\/p>\n<p>Equipped with their new understanding of the nanonetwork, the team experimented with different electrolytes and their concentrations to see how they impacted energy storage density. As Damian Stefaniuk, first author and EC\u00b3 Hub research scientist, highlights, \u201cwe found that there is a wide range of electrolytes that could be viable candidates for\u00a0ec<sup>3<\/sup>. This even includes seawater, which could make this a good material for use in coastal and marine applications, perhaps as support structures for offshore wind farms.\u201d<\/p>\n<p>At the same time, the team streamlined the way they added electrolytes to the mix. Rather than curing\u00a0ec<sup>3\u00a0<\/sup>electrodes and then soaking them in electrolyte, they added the electrolyte directly into the mixing water. Since electrolyte penetration was no longer a limitation, the team could cast thicker electrodes that stored more energy.<\/p>\n<p>The team achieved the greatest performance when they switched to organic electrolytes, especially those that combined quaternary ammonium salts \u2014 found in everyday products like disinfectants \u2014 with acetonitrile, a clear, conductive liquid often used in industry. A cubic meter of this version of ec<sup>3<\/sup>\u00a0\u2014 about the size of a refrigerator \u2014 can store over 2 kilowatt-hours of energy. That\u2019s about enough to power an actual refrigerator for a day.<\/p>\n<p>While batteries maintain a higher energy density,\u00a0ec<sup>3\u00a0<\/sup>can in principle be incorporated directly into a wide range of architectural elements \u2014 from slabs and walls to domes and vaults \u2014 and last as long as the structure itself.<\/p>\n<p>\u201cThe Ancient Romans made great advances in concrete construction. Massive structures like the Pantheon stand to this day without reinforcement. If we keep up their spirit of combining material science with architectural vision, we could be at the brink of a new architectural revolution with multifunctional concretes like ec<sup>3<\/sup>,\u201d proposes Masic.<\/p>\n<p>Taking inspiration from Roman architecture, the team built a miniature\u00a0ec<sup>3<\/sup>\u00a0arch to show how structural form and energy storage can work together. Operating at 9 volts, the arch supported its own weight and additional load while powering an LED light.<\/p>\n<p>However, something unique happened when the load on the arch increased: the light flickered. This is likely due to the way stress impacts electrical contacts or the distribution of charges. \u201cThere may be a kind of self-monitoring capacity here. If we think of an\u00a0ec<sup>3\u00a0<\/sup>arch at architectural scale, its output may fluctuate when it\u2019s impacted by a stressor like high winds. We may be able to use this as a signal of when and to what extent a structure is stressed, or monitor its overall health in real time,\u201d envisions Masic.<\/p>\n<p>The latest developments in ec\u00b3 technology bring it a step closer to real-world scalability. It\u2019s already been used to\u00a0<a href=\"https:\/\/eccube.mit.edu\/2024\/12\/23\/self-heating-panels-demo-in-sapporo-japan\/\">heat sidewalk slabs<\/a>\u00a0in Sapporo, Japan, due to its thermally conductive properties, representing a potential alternative to salting. \u201cWith these higher energy densities and demonstrated value across a broader application space, we now have a powerful and flexible tool that can help us address a wide range of persistent energy challenges,\u201d explains Stefaniuk. \u201cOne of our biggest motivations was to help enable the renewable energy transition. Solar power, for example, has come a long way in terms of efficiency. However, it can only generate power when there\u2019s enough sunlight. So, the question becomes: How do you meet your energy needs at night, or on cloudy days?\u201d<\/p>\n<p>Franz-Josef Ulm, EC\u00b3 Hub co-director and CEE professor, continues the thread: \u201cThe answer is that you need a way to store and release energy. This has usually meant a battery, which often relies on scarce or harmful materials. We believe that\u00a0ec<sup>3\u00a0<\/sup>is a viable substitute, letting our buildings and infrastructure meet our energy storage needs.\u201d The team is working toward applications like parking spaces and roads that could charge electric vehicles, as well as homes that can operate fully off the grid.<\/p>\n<p>\u201cWhat excites us most is that we\u2019ve taken a material as ancient as concrete and shown that it can do something entirely new,\u201d says James Weaver, a co-author on the paper who is an associate professor of design technology and materials science and engineering at Cornell University, as well as a former EC\u00b3 Hub researcher. \u201cBy combining modern nanoscience with an ancient building block of civilization, we\u2019re opening a door to infrastructure that doesn\u2019t just support our lives, it powers them.\u201d<\/p>\n<p>Source:<a href=\"https:\/\/news.mit.edu\/2025\/concrete-battery-now-packs-ten-times-power-1001\">Concrete \u201cbattery\u201d developed at MIT now packs 10 times the power | MIT News | Massachusetts Institute of Technology<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>October 1, 2025<\/p>\n","protected":false},"author":12,"featured_media":20447,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[113],"tags":[],"class_list":["post-20485","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industrial-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.4 - 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