This study focused on defining an experimental protocol for the synthesis of solid electrolytes usable in solid-state batteries. Thiophosphates are the best ionic conductors discovered so far (e.g., Li10GeP2S12 with 12 mS\/cm). However, their high reactivity with H2O and O2 makes the synthesis particularly challenging. The experiment optimized a protocol for synthesizing these solid electrolytes conducted in a vacuum-sealed quartz tube. The proposed protocol was successful for LGPS synthesis and its applicability was also confirmed for sodium-based materials.<\/p>\n","protected":false},"author":464,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[1373,1299],"targets":[1317],"rapporti_tipologie":[762],"class_list":["post-196997","rapporti","type-rapporti","status-publish","hentry","tag-electricalstorage","tag-storage-en","targets-research","rapporti_tipologie-report-en"],"acf":{"dont_show_hompage":true,"projects":{"ID":191041,"post_author":"464","post_date":"2024-07-10 15:54:35","post_date_gmt":"2024-07-10 13:54:35","post_content":"","post_title":"Storage systems, including electrochemical and power-to-gas, and their interfaces with grids","post_excerpt":"The more ambitious the decarbonisation goals become, the more important energy storage is. The increasing penetration of non-programmable renewable energy sources (NPRESs) and the growing electrification of transport lead to a number of challenges related to the stability and flexibility of the national electrical system. The need to store excess renewable energy for later use where and when it is needed becomes evident.","post_status":"publish","comment_status":"open","ping_status":"closed","post_password":"","post_name":"storage-systems-including-electrochemical-and-power-to-gas-and-their-interfaces-with-grids","to_ping":"","pinged":"","post_modified":"2024-08-09 15:49:26","post_modified_gmt":"2024-08-09 13:49:26","post_content_filtered":"","post_parent":0,"guid":"https:\/\/www.rse-web.it\/progetti\/storage-systems-including-electrochemical-and-power-to-gas-and-their-interfaces-with-grids\/","menu_order":0,"post_type":"progetti","post_mime_type":"","comment_count":"0","filter":"raw"},"order_posts":"","dont_show_search":false,"related_posts":false,"show_on_slider":false,"single_post_data":{"titolo_spot":"","post_content":"
The objective of this activity is to develop a reaction protocol for synthesizing solid electrolytes in the Li10GeP2S12 family, referred to as LGPS. These materials have been studied for the development of solid-state lithium-ion batteries. LGPS was discovered in 2011 and remains one of the solid ionic electrolytes with the highest ionic conductivity (approximately 12 mS\/cm), comparable to liquid electrolytes. Developing new solid electrolytes is essential for solid-state batteries (ASSBs). Replacing the liquid electrolyte with an ionic solid conductor offers several advantages: i) a solid material is thermally more stable and can operate at high current densities without overheating, thus improving the overall safety of the battery; ii) being less prone to dendrite penetration, it allows the use of alkali metals as negative electrodes, providing more energy to the cell; and iii) acting as a physical layer between the two electrodes, it hinders the mobility of active materials, positively impacting cell performance. However, the chosen family of solid electrolytes, thiophosphates, is highly reactive, particularly towards H2O and O2.<\/p>\n
Therefore, various synthesis protocols have been tested to isolate the raw materials (mainly sulfides) from the external environment during handling and especially during thermal treatment. Tests were conducted using a sealed quartz tube under vacuum. The successful synthesis of the LGPS species was achieved. Subsequently, the same protocol was used for synthesizing Na11Sn2PS12. Initial results confirmed the effectiveness of the adopted protocol, and the material was characterized with XRD and impedance measurements.<\/p>\n","link_estreno":false,"scarica_file":[{"download_option":"download","file_name":"Download Report","download":{"ID":105851,"id":105851,"title":"19012917-319081.pdf","filename":"19012917-319081.pdf","filesize":4462768,"url":"https:\/\/www.rse-web.it\/wp-content\/uploads\/2021\/03\/19012917-319081.pdf","link":"https:\/\/www.rse-web.it\/en\/rapporti\/19012917\/19012917-319081\/","alt":"","author":"464","description":"19012917-319081.pdf","caption":"","name":"19012917-319081","status":"inherit","uploaded_to":132823,"date":"2021-12-31 00:00:00","modified":"2021-03-17 12:49:38","menu_order":0,"mime_type":"application\/pdf","type":"application","subtype":"pdf","icon":"https:\/\/www.rse-web.it\/wp-includes\/images\/media\/document.png"}}],"button":{"text":"","link":""},"referente_group":false,"data_emissione":"2019-12-31","autori":"M. Radaelli, M. Soleimanzade","rapporto":"","rif_rse":"19012917"},"satellite_post_url":""},"yoast_head":"\n