{"id":5929,"date":"2026-04-13T10:00:43","date_gmt":"2026-04-13T08:00:43","guid":{"rendered":"https:\/\/www.cnrs-imn.fr\/a-step-towards-longer-lasting-organic-batteries\/"},"modified":"2026-04-17T10:25:22","modified_gmt":"2026-04-17T08:25:22","slug":"a-step-towards-longer-lasting-organic-batteries","status":"publish","type":"post","link":"https:\/\/www.cnrs-imn.fr\/en\/a-step-towards-longer-lasting-organic-batteries\/","title":{"rendered":"A step towards longer-lasting organic batteries"},"content":{"rendered":"<p><strong>A step towards more sustainable organic batteries: Franco-German collaboration honoured by ACS Publication<\/strong><\/p>\n<p>A team of French and German researchers from our institute and the<a href=\"https:\/\/www.uni-ulm.de\/en\/\" target=\"_blank\" rel=\"noopener\">University of Ulm<\/a> (Germany) has just published an innovative study on organic batteries. Their paper, which was selected as ACS Editors&#8217; Choice, proposes a promising alternative to the metallic materials used in conventional batteries. <\/p>\n<p><strong>Metal-free batteries: an ecological and economic challenge<\/strong><\/p>\n<p>Today, most batteries use metals, which are often rare and expensive. Researchers are exploring an alternative: organic materials (based on hydrogen, carbon, oxygen and nitrogen), for the development of purely molecular batteries, which are cheaper and more environmentally friendly. The teachers-researchers focused on a family of molecules known as &#8220;super electron donors&#8221; (SEDs). These molecules, capable of easily releasing electrons, have been integrated into polymers (molecular chains) to create negative electrodes for such organic batteries.   <\/p>\n<p><strong>Next steps<\/strong><\/p>\n<p>Although the polymers tested (PSBBI and X-PSBBI) demonstrated their ability to store and release energy reversibly, their performance diminished after several cycles. The researchers propose a possible explanation for this phenomenon: the formation of a reactive chemical species (a &#8220;dicarbene&#8221;), which would damage the material. These results will guide future research into the design of more stable, high-performance organic materials.  <\/p>\n<p><strong>International collaboration<\/strong><\/p>\n<p>The article, entitled &#8220;Bi(benzimidazole)-Based Super Electron Donors as p-Type Organic Electrode Materials for Anionic Redox in Lithium-Ion Batteries&#8221;, is the fruit of collaboration between the groups of Professors Birgit Esser (Institute of Organic Chemistry II and Advanced Materials, Ulm University, Germany) and <a href=\"https:\/\/www.cnrs-imn.fr\/en\/member\/poizot-philippe\/\">Philippe Poizot<\/a><a href=\"https:\/\/www.cnrs-imn.fr\/en\/electrochemical-energy-storage-and-conversion\/\">(ST2E team<\/a>).<\/p>\n<p>The article is available in open access for six months: https: <a href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/acsapm.6c00515\" target=\"_blank\" rel=\"noopener\">\/\/pubs.acs.org\/doi\/10.1021\/acsapm.6c00515<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A step towards more sustainable organic batteries: Franco-German collaboration honoured  [&#8230;]<\/p>\n","protected":false},"author":3,"featured_media":5930,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[46,51],"tags":[],"class_list":["post-5929","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-events","category-st2e"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>A step towards longer-lasting organic batteries - IMN<\/title>\n<meta name=\"description\" content=\"Most batteries use metals, which are rare and expensive. 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