{"article":{"annotation":{"article_id":"france-llb-water-in-salt-electrolyte-transport-study-2026","available_at":"2026-10-25T02:28:07.174658Z","geography_revision":"ef6ee0010dda5fe7b240fd514749b43e214c57da73222d2e40ec83b276dd0977","id":"5eac775d3baeb695111514312e2c0f5c2a6e2974916fa17a4b3c8e80d245206b","input_sha256":"ac332b3c067ba732ad97b281d47f367b6ba2e130b872b4f0ed836dbac30397ed","limitations":["Rule-derived subjects are candidates, not verified editorial labels or calibrated model probabilities.","Coverage is distinct from event location. Unknown country/city/coordinates remain absent; no automatic geocoding.","Article geometries keep their stated precision and methodology; reproducing them is not independent coordinate verification."],"method":"controlled-rules-v1","places":[{"admin1":null,"city":null,"coordinate_note":null,"coordinate_reference_system":"OGC:CRS84","coordinate_source":null,"country":"FR","evidence":[{"field":"country","language":"en","note":"Explicit preserved editorial country/region; no city or national centroid inferred","source_urls":["https://iramis.cea.fr/llb/2026/10/structural-dynamics-drive-mobility-in-water-in-salt-electrolytes/","https://doi.org/10.1088/2515-7655/aea9c8"]}],"geometry":null,"id":"iso3166-1:FR","kind":"country-or-area","labels":{"ar":"فرنسا","en":"France","es":"Francia","fr":"France"},"match_status":"candidate","precision":"regional","role":"coverage","uncertainty_m":null}],"rules_sha256":"fb5ad3c27c91cb840f7a0a05f7f64a5cb26ad0374409ff9457f277c7092e22b4","schema_version":1,"subjects":[{"concept_id":"medtop:20000337","confidence":null,"confidence_method":null,"evidence":[{"field":"en.title+en.summary","language":"en","note":"Subject suggested from the title or summary: transport","source_urls":["https://iramis.cea.fr/llb/2026/10/structural-dynamics-drive-mobility-in-water-in-salt-electrolytes/","https://doi.org/10.1088/2515-7655/aea9c8"]}],"method":"controlled-rules-v1","rule_id":"transport","status":"candidate"},{"concept_id":"medtop:13000000","confidence":null,"confidence_method":null,"evidence":[{"field":"category+topics","language":"en","note":"Preserved editorial category/topic; broad candidate only","source_urls":["https://iramis.cea.fr/llb/2026/10/structural-dynamics-drive-mobility-in-water-in-salt-electrolytes/","https://doi.org/10.1088/2515-7655/aea9c8"]}],"method":"controlled-rules-v1","rule_id":"science-broad","status":"candidate"}],"taxonomy_revision":"1f2db31d811fca07e99b16d402c10e2cc2965c9df1c7b41d9be348b40a24e7fb","taxonomy_version":"IPTC Media Topics 2026-Q2"},"api_url":"https://newsverum.com/api/v1/articles/france-llb-water-in-salt-electrolyte-transport-study-2026?lang=en","category":"science","content":{"key_points":[],"paragraphs":["France’s Laboratoire Léon Brillouin highlighted a study on October 22 examining why water-in-salt electrolytes can conduct ions effectively even when the liquid becomes highly viscous. Célia Doublet and co-authors combined several experimental techniques to investigate concentrated aqueous lithium bis(trifluoromethanesulfonyl)imide, or LiTFSI. Their paper appeared in Journal of Physics: Energy on October 8; the later laboratory announcement describes that research rather than a newly manufactured battery.","The experiments examined solutions across a concentration range extending from 0.5 to 21 moles of salt per kilogram of water. As concentration increased across that range, water and lithium self-diffusion coefficients declined by approximately a factor of 18, while diffusion of TFSI anions fell by more than a factor of 35. These comparisons describe changes in molecular mobility; they are neither battery charging rates nor gains in energy capacity.","The contrast suggests that the different species do not all experience the liquid’s resistance in the same way. The researchers interpret their measurements as evidence of temporary regions rich in water, within a surrounding structure rich in anions. Water can move rapidly inside these small regions and exchange between them. The structure changes over time, providing a mechanism through which small solvated species retain mobility despite the bulk liquid’s increasing viscosity.","The team measured viscosity and conductivity alongside pulsed-field-gradient nuclear magnetic resonance and quasi-elastic neutron scattering. NMR tracked species over longer distances, while neutron measurements probed much shorter motions. Experiments used SHARPER, IN16B and IN13 at France’s Institut Laue–Langevin, as well as FOCUS at Switzerland’s Paul Scherrer Institute. The analysis distinguished water’s longer-range self-diffusion, localized translational movement and molecular rotation rather than assigning all motion to a single process.","Sample preparation was an important part of the method because LiTFSI readily absorbs moisture. The researchers dried the salt overnight under vacuum at 120°C, degassed water with argon and prepared solutions in an argon glovebox. The high-temperature NMR measurements covered 25–45°C. Viscosity measurements generally covered 5–50°C, with low-temperature limitations for the most concentrated solutions because salt could precipitate. Those temperatures are experimental conditions, not recommended commercial battery operating limits.","The study also compared neutron measurements with and without an applied polarization of 1 volt and found no detectable change in the water dynamics probed by that setup. The authors stress that the experiment predominantly measured bulk electrolyte: its very thin interfacial region contributed too little to resolve. The finding therefore does not establish that electric fields have no effect at electrode interfaces or under different test conditions.","The authors say the resulting dynamical parameters can help constrain molecular-dynamics simulations, including versions assisted by machine learning. The contribution is an experimentally supported account of transport in a particular electrolyte system. It supplies information for material design and modelling, while commercial performance still requires separate evidence on complete cells, cycling durability, production costs and manufacturing scale."],"sections":[]},"corrections":[],"country":"FR","data":{"blocks":[{"columns":[{"key":"procedure","label":{"ar":"الإجراء","de":"Verfahren","en":"Procedure","es":"Procedimiento","fr":"Procédure","pt":"Procedimento","tr":"İşlem"},"language":"en","type":"text"},{"key":"lower_c","label":{"ar":"الحرارة الدنيا، °م","de":"Untere Temperatur, °C","en":"Lower temperature, °C","es":"Temperatura inferior, °C","fr":"Température basse, °C","pt":"Temperatura inferior, °C","tr":"Alt sıcaklık, °C"},"type":"number","unit":"°C"},{"key":"upper_c","label":{"ar":"الحرارة العليا، °م","de":"Obere Temperatur, °C","en":"Upper temperature, °C","es":"Temperatura superior, °C","fr":"Température haute, °C","pt":"Temperatura superior, °C","tr":"Üst sıcaklık, °C"},"type":"number","unit":"°C"}],"description":{"ar":"درجات حرارة بروتوكولات تحضير العينات والقياس في الورقة الأصلية.","de":"Temperaturen für Probenvorbereitung und Messprotokolle der Studie.","en":"Temperatures for sample preparation and measurement protocols in the source paper.","es":"Temperaturas de preparación de muestras y de los protocolos de medición del artículo.","fr":"Températures de préparation des échantillons et de mesure décrites dans l’article.","pt":"Temperaturas de preparação das amostras e dos protocolos de medição do artigo.","tr":"Kaynak makaledeki örnek hazırlama ve ölçüm protokollerinin sıcaklıkları."},"id":"wise-experimental-temperature-settings","methodology":{"ar":"نُقلت الشروط التجريبية من الأقسام 2.1 و2.2 و2.4 من الورقة. يقتصر صف الرنين على فرع 25–45 درجة مئوية، وتوجد قياسات أخرى عند درجات أقل. وحد ترسب الملح قياسات اللزوجة المنخفضة الحرارة لمحاليل 18 و21 مولاً/كغ. ويصف العمودان إعدادات البروتوكول، وليس حدود تشغيل أو نتائج أداء أو مواصفات تجارية. تساوي الحدين يعني درجة واحدة.","de":"Versuchsbedingungen aus den Abschnitten 2.1, 2.2 und 2.4 der Studie. Die NMR-Zeile betrifft nur den Zweig 25–45°C; weitere Messungen bei niedrigeren Temperaturen stehen in der Studie. Salzausfällung begrenzte Viskositätsmessungen der Lösungen mit 18 und 21 mol/kg bei niedrigen Temperaturen. Die Grenzen sind Protokolleinstellungen, keine Betriebsgrenzen, Leistungsergebnisse oder kommerziellen Batteriespezifikationen. Gleiche Grenzen bedeuten eine einzelne Temperatur.","en":"Experimental conditions transcribed from sections 2.1, 2.2 and 2.4 of the paper. The NMR row covers only the 25–45°C branch; additional lower-temperature measurements appear in the paper. Low-temperature viscosity measurements of the 18 and 21 mol/kg solutions were limited by salt precipitation. Lower/upper columns describe protocol settings, not operating limits, measured outcomes or commercial battery specifications. Equal endpoints indicate one temperature.","es":"Condiciones experimentales tomadas de las secciones 2.1, 2.2 y 2.4 del artículo. La fila RMN cubre solo la rama de 25–45°C; el artículo incluye otras mediciones a menor temperatura. La precipitación de sal limitó las mediciones de viscosidad a baja temperatura de las soluciones de 18 y 21 mol/kg. Las columnas indican ajustes del protocolo, no límites de funcionamiento, resultados de rendimiento ni especificaciones comerciales. Extremos iguales indican una sola temperatura.","fr":"Conditions expérimentales reprises des sections 2.1, 2.2 et 2.4 de l’article. La ligne RMN ne concerne que la branche 25–45°C ; d’autres mesures à plus basse température sont décrites. La précipitation du sel limitait les mesures de viscosité à basse température des solutions à 18 et 21 mol/kg. Les bornes indiquent les réglages du protocole, non des limites d’exploitation, résultats de performance ou spécifications commerciales. Des bornes égales représentent une température unique.","pt":"Condições experimentais transcritas das secções 2.1, 2.2 e 2.4 do artigo. A linha RMN cobre apenas o ramo de 25–45°C; há outras medições a temperaturas menores. A precipitação do sal limitou as medições de viscosidade a baixa temperatura das soluções de 18 e 21 mol/kg. As colunas representam definições do protocolo, não limites de funcionamento, resultados de desempenho ou especificações comerciais. Extremos iguais indicam uma temperatura única.","tr":"Makalenin 2.1, 2.2 ve 2.4 bölümlerindeki deney koşulları aktarılmıştır. NMR satırı yalnızca 25–45°C dalıdır; makalede ayrıca daha düşük sıcaklık ölçümleri vardır. Viskozite aralığında 18 ve 21 mol/kg çözeltilerin düşük sıcaklık ölçümleri tuz çökelmesi nedeniyle sınırlıdır. Alt ve üst sütunlar bildirilen protokol aralığını gösterir; işletme sınırı, ölçüm sonucu veya ticari batarya özelliği değildir. Aynı alt/üst değer tek sıcaklığı ifade eder."},"rowTranslations":[{"procedure":{"ar":"تجفيف ملح LiTFSI تحت التفريغ","de":"Vakuumtrocknung des LiTFSI-Salzes","en":"Vacuum drying of LiTFSI salt","es":"Secado al vacío de la sal LiTFSI","fr":"Séchage du sel LiTFSI sous vide","pt":"Secagem a vácuo do sal LiTFSI","tr":"LiTFSI tuzunun vakumda kurutulması"}},{"procedure":{"ar":"قياسات اللزوجة مع استثناءات الترسب","de":"Viskositätsmessungen mit Ausfällungsausnahmen","en":"Viscosity measurements, with precipitation exceptions","es":"Mediciones de viscosidad, con excepciones por precipitación","fr":"Mesures de viscosité, avec exceptions de précipitation","pt":"Medições de viscosidade, com exceções por precipitação","tr":"Viskozite ölçümleri, çökelme istisnalarıyla"}},{"procedure":{"ar":"قياسات الرنين، فرع الحرارة الأعلى","de":"NMR-Messungen, höherer Temperaturzweig","en":"NMR measurements, higher-temperature branch","es":"Mediciones RMN, rama de temperatura elevada","fr":"Mesures RMN, branche à température élevée","pt":"Medições RMN, ramo de temperatura elevada","tr":"NMR ölçümleri, yüksek sıcaklık dalı"}}],"rows":[{"lower_c":120,"procedure":"Vacuum drying of LiTFSI salt","upper_c":120},{"lower_c":5,"procedure":"Viscosity measurements, with precipitation exceptions","upper_c":50},{"lower_c":25,"procedure":"NMR measurements, higher-temperature branch","upper_c":45}],"sourceUrls":["https://doi.org/10.1088/2515-7655/aea9c8"],"title":{"ar":"شروط الحرارة في تجارب الإلكتروليت","de":"Temperaturen der Elektrolytversuche","en":"Temperature settings in the electrolyte experiments","es":"Temperaturas de los experimentos con electrolitos","fr":"Températures des expériences sur l’électrolyte","pt":"Temperaturas das experiências com eletrólitos","tr":"Elektrolit deneylerinde sıcaklık koşulları"},"type":"table","updatedAt":"2026-10-25T02:08:03Z"}],"version":1},"data_downloads":[{"formats":{"csv":"https://newsverum.com/api/v1/articles/france-llb-water-in-salt-electrolyte-transport-study-2026/data/wise-experimental-temperature-settings?lang=en&format=csv","json":"https://newsverum.com/api/v1/articles/france-llb-water-in-salt-electrolyte-transport-study-2026/data/wise-experimental-temperature-settings?lang=en&format=json"},"id":"wise-experimental-temperature-settings"}],"data_types":["table"],"editorial_illustration":null,"event_id":"event-37bd48eb-ff1b-5778-94f7-113365c99b40","event_period":"2026-10-22","event_period_basis":"event-or-reference-period","id":"france-llb-water-in-salt-electrolyte-transport-study-2026","image":null,"importance":0.6,"language":"en","modified_at":"2026-10-25T02:27:51+00:00","publication_basis":"publication-record","published_at":"2026-10-25T02:27:51+00:00","reading_minutes":3,"region":"world","section_illustration":null,"slug":"france-llb-water-in-salt-electrolyte-transport-study-2026","sources":[{"checkedAt":"2026-10-25","name":"Laboratoire Léon Brillouin (CEA–CNRS)","publishedAt":"2026-10-22","url":"https://iramis.cea.fr/llb/2026/10/structural-dynamics-drive-mobility-in-water-in-salt-electrolytes/"},{"checkedAt":"2026-10-25","name":"Célia Doublet and co-authors, Journal of Physics: Energy","publishedAt":"2026-10-08","url":"https://doi.org/10.1088/2515-7655/aea9c8"}],"summary":"An LLB research highlight dated 22 October explains experiments linking water-rich nanodomains to ion transport. The underlying paper was published on 8 October; it reports laboratory mechanisms, rather than a commercial battery launch.","text":"An LLB research highlight dated 22 October explains experiments linking water-rich nanodomains to ion transport. The underlying paper was published on 8 October; it reports laboratory mechanisms, rather than a commercial battery launch.\n\nFrance’s Laboratoire Léon Brillouin highlighted a study on October 22 examining why water-in-salt electrolytes can conduct ions effectively even when the liquid becomes highly viscous. Célia Doublet and co-authors combined several experimental techniques to investigate concentrated aqueous lithium bis(trifluoromethanesulfonyl)imide, or LiTFSI. Their paper appeared in Journal of Physics: Energy on October 8; the later laboratory announcement describes that research rather than a newly manufactured battery.\n\nThe experiments examined solutions across a concentration range extending from 0.5 to 21 moles of salt per kilogram of water. As concentration increased across that range, water and lithium self-diffusion coefficients declined by approximately a factor of 18, while diffusion of TFSI anions fell by more than a factor of 35. These comparisons describe changes in molecular mobility; they are neither battery charging rates nor gains in energy capacity.\n\nThe contrast suggests that the different species do not all experience the liquid’s resistance in the same way. The researchers interpret their measurements as evidence of temporary regions rich in water, within a surrounding structure rich in anions. Water can move rapidly inside these small regions and exchange between them. The structure changes over time, providing a mechanism through which small solvated species retain mobility despite the bulk liquid’s increasing viscosity.\n\nThe team measured viscosity and conductivity alongside pulsed-field-gradient nuclear magnetic resonance and quasi-elastic neutron scattering. NMR tracked species over longer distances, while neutron measurements probed much shorter motions. Experiments used SHARPER, IN16B and IN13 at France’s Institut Laue–Langevin, as well as FOCUS at Switzerland’s Paul Scherrer Institute. The analysis distinguished water’s longer-range self-diffusion, localized translational movement and molecular rotation rather than assigning all motion to a single process.\n\nSample preparation was an important part of the method because LiTFSI readily absorbs moisture. The researchers dried the salt overnight under vacuum at 120°C, degassed water with argon and prepared solutions in an argon glovebox. The high-temperature NMR measurements covered 25–45°C. Viscosity measurements generally covered 5–50°C, with low-temperature limitations for the most concentrated solutions because salt could precipitate. Those temperatures are experimental conditions, not recommended commercial battery operating limits.\n\nThe study also compared neutron measurements with and without an applied polarization of 1 volt and found no detectable change in the water dynamics probed by that setup. The authors stress that the experiment predominantly measured bulk electrolyte: its very thin interfacial region contributed too little to resolve. The finding therefore does not establish that electric fields have no effect at electrode interfaces or under different test conditions.\n\nThe authors say the resulting dynamical parameters can help constrain molecular-dynamics simulations, including versions assisted by machine learning. The contribution is an experimentally supported account of transport in a particular electrolyte system. It supplies information for material design and modelling, while commercial performance still requires separate evidence on complete cells, cycling durability, production costs and manufacturing scale.","title":"French laboratory highlights how lithium stays mobile in concentrated battery electrolytes","topics":[],"translations":[{"api_url":"https://newsverum.com/api/v1/articles/france-llb-water-in-salt-electrolyte-transport-study-2026?lang=tr","language":"tr","url":"https://newsverum.com/tr/news/france-llb-water-in-salt-electrolyte-transport-study-2026"},{"api_url":"https://newsverum.com/api/v1/articles/france-llb-water-in-salt-electrolyte-transport-study-2026?lang=en","language":"en","url":"https://newsverum.com/en/news/france-llb-water-in-salt-electrolyte-transport-study-2026"},{"api_url":"https://newsverum.com/api/v1/articles/france-llb-water-in-salt-electrolyte-transport-study-2026?lang=ar","language":"ar","url":"https://newsverum.com/ar/news/france-llb-water-in-salt-electrolyte-transport-study-2026"},{"api_url":"https://newsverum.com/api/v1/articles/france-llb-water-in-salt-electrolyte-transport-study-2026?lang=fr","language":"fr","url":"https://newsverum.com/fr/news/france-llb-water-in-salt-electrolyte-transport-study-2026"},{"api_url":"https://newsverum.com/api/v1/articles/france-llb-water-in-salt-electrolyte-transport-study-2026?lang=es","language":"es","url":"https://newsverum.com/es/news/france-llb-water-in-salt-electrolyte-transport-study-2026"},{"api_url":"https://newsverum.com/api/v1/articles/france-llb-water-in-salt-electrolyte-transport-study-2026?lang=de","language":"de","url":"https://newsverum.com/de/news/france-llb-water-in-salt-electrolyte-transport-study-2026"},{"api_url":"https://newsverum.com/api/v1/articles/france-llb-water-in-salt-electrolyte-transport-study-2026?lang=pt","language":"pt","url":"https://newsverum.com/pt/news/france-llb-water-in-salt-electrolyte-transport-study-2026"}],"url":"https://newsverum.com/en/news/france-llb-water-in-salt-electrolyte-transport-study-2026"},"version":"1"}