{"id":11878,"date":"2018-08-20T17:22:46","date_gmt":"2018-08-21T00:22:46","guid":{"rendered":"http:\/\/cafe.foundation\/blog\/?p=11878"},"modified":"2018-08-20T17:22:46","modified_gmt":"2018-08-21T00:22:46","slug":"liquid-batteries-for-aircraft","status":"publish","type":"post","link":"http:\/\/cafe.foundation\/blog\/liquid-batteries-for-aircraft\/","title":{"rendered":"Liquid Batteries for Aircraft?"},"content":{"rendered":"<p>NASA is investigating \u201cthe integration of nanoelectrofuel (NEF) flow batteries with rim-driven electric motors to produce a safe, clean and quiet propulsion system for aircraft,\u201d <a href=\"http:\/\/aviationweek.com\/future-aerospace\/liquid-battery-promises-safe-energy-dense-power-electric-aircraft?\">according to <em>Aviation Week.<\/em><\/a><\/p>\n<p>That is the promise of an early-stage rechargeable liquid battery technology under investigation by <a href=\"http:\/\/awin.aviationweek.com\/OrganizationProfiles.aspx?orgId=19991\">NASA<\/a>. The agency is researching the integration of NEF flow batteries with rim-driven electric motors to produce a safe, clean and quiet propulsion system for aircraft.\u00a0 The rim-driven motors are used on boats as thrusters, and may have applications on small unmanned aircraft, <a href=\"https:\/\/www.researchgate.net\/publication\/320273634_Implementation_of_Electrical_Rim_Driven_Fan_Technology_to_Small_Unmanned_Aircraft\">although researchers have seen disappointing results so far<\/a>.<\/p>\n<p><iframe loading=\"lazy\" title=\"Rim Driven Propellers (RDP) or Rim Drive Propulsers and Thrusters\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/Te_xejpriFM?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>Tying these motors to more promising research into\u201d non-explosive energy storage technology\u201d is part of NASA Armstrong Flight Research Center\u2019s Aqueous Quick-Charging Battery Integration for Flight Research (Aquifer) project, along with NASA Glenn Research Center\u2019s co-principal investigation.\u00a0 A spin-off of research at Argonne National Laboratory and Illinois Institute of Technology, Influit Energy has \u201cdeveloped a novel type of rechargeable battery that features active energy-storing materials in pumpable liquid form, which essentially allows us to use batteries in the same fashion as gasoline-powered engines.\u201d<\/p>\n<p><iframe loading=\"lazy\" title=\"Nano Liquid Batteries | John Katsoudas | TEDxIIT\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/YZuYnX3IQSQ?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>A TED Talk by Influit Founder &amp; CEO John Katsoudas shows the design philosophy behind their battery and the direction planned for the technology.\u00a0 Co-founders Elena Timofeeva, Chief Operations Officer and Director of R&amp;D; and Carlo Segre, Chief Technology Officer, round out Influit\u2019s leadership.<\/p>\n<p>Influit claims their nan0electrofuel (NEF) flow battery can achieve one-and-one-half times the energy density of lithium-ion batteries at one-half the cost.\u00a0 A primary feature, \u201crapid charge refueling for EVs, \u201cbatteries that can conform to different shapes, and power decoupled from energy storage, make this type of battery a versatile possibility for even aircraft use.\u00a0 Recharging can be done by pumping new liquids into the two storage tanks, removing the Influit vehicle from the grid.\u00a0 It also enables recharging the grid or home energy storage from the vehicle, a useful potential use for load balancing or grid or in-home emergencies.<\/p>\n<p>Influit says their battery enables 60-percent of the cell to be active materials.\u00a0 Most conventional batteries allow only about 35-percent of the cell to be active materials, the rest taken by casing, binders, separators, and other components.\u00a0 MEET (M\u00fcnster Electrochemical Energy Technology, \u00a0MEET Battery Research Center, Institute of Physical Chemistry, University of Muenster, Germany)<a href=\"https:\/\/www.gdch.de\/fileadmin\/downloads\/Netzwerk_und_Strukturen\/Fachgruppen\/Seniorexperten\/PDF\/Tagungen\/6_SEC_Jahrestreffen\/Winter02.pdf\"> breaks this down to 49.71-percent active materials and 50.29 inactive<\/a> for typical canister-type lithium batteries.\u00a0 That varies for pouch and prismatic types.<\/p>\n<div id=\"attachment_13041\" style=\"width: 538px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-13041\" class=\"size-large wp-image-13041\" src=\"http:\/\/sustainableskies.org\/wp-content\/uploads\/2018\/08\/influit-battery-nef-528x525.jpg\" alt=\"\" width=\"528\" height=\"525\" \/><p id=\"caption-attachment-13041\" class=\"wp-caption-text\">Influit&#8217;s NEF battery with a comparison of active mass between it and conventional lithium batteries<\/p><\/div>\n<p>The NEF battery uses positively- and negatively-charged fluids, which are pumped through a flowcell inside the larger cell.\u00a0 The fluids are water-based, but infused with suspended \u201cnanoparticles of battery-active materials\u201d making an electrolyte that can be charged and discharged multiple times.<\/p>\n<p>NASA electrical engineer Kurt Papathakis, active on the X-57 Maxwell distributed thrust aircraft, presented the <a href=\"https:\/\/aviation.aiaa.org\/2018archives\/\">Aquifer project at the American Institute of Aeronautics and Astronautics Aviation 2018 conference in Atlanta in June.<\/a>\u00a0 He discussed a technology roadmap that foresees NEF reaching more than twice the pack-level energy density of the lithium-ion.\u00a0 Prototype NEF flowcells produce only \u201ca few milliamps (mA) per square centimeter.\u00a0 With funding, NASA hopes to deliver first-generation NEF technology with a current density of 100 mA\/cm2 by 2020.\u00a0 This could produce a system-level specific energy of 125 Watt-hours per kilogram or 350 Watt-hour per liter \u2013 outperforming lithium-ion.<\/p>\n<div id=\"attachment_13042\" style=\"width: 489px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-13042\" class=\"size-full wp-image-13042\" src=\"http:\/\/sustainableskies.org\/wp-content\/uploads\/2018\/08\/Schematic-diagram-showing-a-flow-battery-with-LCO-C-nanoelectrofuels-as-one-of.jpg\" alt=\"\" width=\"479\" height=\"254\" \/><p id=\"caption-attachment-13042\" class=\"wp-caption-text\">Schematic diagram showing a flow battery with LCO\/C nanoelectrofuels as one of potential chemistries to meet an EV metric of 100 kWh energy storage at 400V power.\u00a0 From Influit founder&#8217;s 2014 presentation at\u00a0\u00a0TechConnect World NSTI Innovation Conference and Expo<\/p><\/div>\n<p>Papathakis envisions, though industry cost-sharing, 200 mA\/cm2, or 530 Wh\/kg, compared with 325 Wh\/kg projected for lithium-ion in the same time frame.\u00a0 This could go as high as 750 Wh\/kg by 2023, which would seem to lead projected li-ion capacities.\u00a0 Fluids can be pumped through the flowcell multiple times until the active materials are discharged.\u00a0 (There is no explanation of whether these fluids are less energy dense following each cycle.)\u00a0 Wind and solar energy can recharge the spent fuel, eliminating greenhouse gas emissions from the life cycle.<\/p>\n<p>Papathakis says, \u201cWe have demonstrated multiple recharge cycles and seen minimum to zero degradation. \u00a0Also, unlike Li-ion batteries, NEF does not pay a penalty in cycle life for charging above 80-percent capacity or discharging below 20 percent.<\/p>\n<p>Interestingly, Influit includes a quotation from Mike Bowlin, Chairman and CEO of ARCO (now BP).\u00a0 &#8220;We\u2019ve embarked on the beginning of the last days of the Age Of Oil.\u00a0 Embrace the future and recognize the growing demand for a wide range of fuels or ignore reality and slowly\u2014but surely\u2014be left behind.\u201d\u00a0 Maybe he&#8217;s on to something.<\/p>\n<div id=\"facebook_like\"><iframe src=\"http:\/\/www.facebook.com\/plugins\/like.php?href=http%3A%2F%2Fcafe.foundation%2Fblog%2Fliquid-batteries-for-aircraft%2F&amp;layout=standard&amp;show_faces=true&amp;width=500&amp;action=like&amp;font=segoe+ui&amp;colorscheme=light&amp;height=80\" scrolling=\"no\" frameborder=\"0\" style=\"border:none; overflow:hidden; width:500px; height:80px;\" allowTransparency=\"true\"><\/iframe><\/div>","protected":false},"excerpt":{"rendered":"<p>NASA is investigating \u201cthe integration of nanoelectrofuel (NEF) flow batteries with rim-driven electric motors to produce a safe, clean and quiet propulsion system for aircraft,\u201d according to Aviation Week. That is the promise of an early-stage rechargeable liquid battery technology under investigation by NASA. The agency is researching the integration of NEF flow batteries with [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[6862,15,7555,14],"tags":[4066,8793,2135,8794,8795,4057,8796,8797,8798,8799,8800,8801,7325,4922,8802],"class_list":["post-11878","post","type-post","status-publish","format-standard","category-batteries","category-electric_powerplants","category-fuel-cells","category-sustainable_ga","tag-american-institute-of-aeronautics-and-astronautics","tag-aqueous-quick-charging-battery-integration-for-flight-research-aquifer-project","tag-argonne-national-laboratory","tag-carlo-segre","tag-elena-timofeeva","tag-illinois-institute-of-technology","tag-influit-energy","tag-john-katsoudas","tag-kurt-papathakis","tag-meet-munster-electrochemical-energy-technology","tag-mike-bowlin","tag-nanoelectrofuel-nef-flow-batteries","tag-nasa-armstrong-flight-research-center","tag-nasa-glenn-research-center","tag-x-57-maxwell-distributed-thrust-aircraft"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Liquid Batteries for Aircraft? - CAFE Foundation Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cafe.foundation\/blog\/liquid-batteries-for-aircraft\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Liquid Batteries for Aircraft? - CAFE Foundation Blog\" \/>\n<meta property=\"og:description\" content=\"NASA is investigating \u201cthe integration of nanoelectrofuel (NEF) flow batteries with rim-driven electric motors to produce a safe, clean and quiet propulsion system for aircraft,\u201d according to Aviation Week. That is the promise of an early-stage rechargeable liquid battery technology under investigation by NASA. 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