EP 3359487 A1 20180815 - ELECTROLYTE MATERIAL HAVING A NASICON STRUCTURE FOR SOLID-STATE SODIUM ION BATTERIES AND METHOD FOR THE PRODUCTION THEREOF
Title (en)
ELECTROLYTE MATERIAL HAVING A NASICON STRUCTURE FOR SOLID-STATE SODIUM ION BATTERIES AND METHOD FOR THE PRODUCTION THEREOF
Title (de)
ELEKTROLYTMATERIAL MIT NASICON-STRUKTUR FÜR FESTSTOFF-NATRIUMIONENBATTERIEN SOWIE VERFAHREN ZU DEREN HERSTELLUNG
Title (fr)
MATÉRIAU ÉLECTROLYTIQUE AYANT UNE STRUCTURE NASICON POUR BATTERIES SOLIDES-SODIUM-ION ET SON PROCÉDÉ DE FABRICATION
Publication
Application
Priority
- DE 102015013155 A 20151009
- DE 2016000332 W 20160827
Abstract (en)
[origin: WO2017059838A1] The invention relates to a method for producing electrolyte material having a NASICON structure based on a Na2+xScxZr2.x(Si04)2(P04) compound where 0 ≤ x < 2, wherein initially an acidic, aqueous solution is prepared, in which sodium, scandium and zirconium are dissolved in the form of water-soluble nitrates, acetates or carbonates, as well as soluble silicates or orthosilicic acids or organic silicon compounds corresponding to the desired stoichiometry in dissolved form. Next, phosphoric acids or ammonium dihydrogen phosphate or other soluble phosphates corresponding to the desired stoichiometry are added, forming complex zirconium dioxide phosphates as colloidal precipitates. The mixture with the precipitates is then dried and calcined. The sodium ion-conducting powder, produced in this way, having a NASICON structure comprising a Na2+xScxZr2-x(Si04)2(P04) compound, where 0 ≤ x ≤ 0.6, has a particle size less than 0.1 μm and advantageously an ionic conductivity of greater than 1 · 10-3 S/cm at 25 °C. For sodium ion-conducting powder where 0.3 ≤ x ≤ 0.6, ionic conductivities of greater than 3 · 103 S/cm at 25 °C can in fact be determined. The powder produced in this way can then advantageously be ground and compacted. This material is particularly advantageous as an impermeable membrane for solid-state sodium ion batteries.
IPC 8 full level
C01B 25/30 (2006.01); C01B 33/32 (2006.01); C04B 35/16 (2006.01); C04B 35/447 (2006.01); H01B 1/06 (2006.01); H01M 10/054 (2010.01); H01M 10/0562 (2010.01)
CPC (source: EP US)
C01B 25/26 (2013.01 - EP US); C01B 33/32 (2013.01 - EP US); C04B 35/16 (2013.01 - EP US); C04B 35/447 (2013.01 - EP US); C04B 35/62645 (2013.01 - EP US); C04B 35/645 (2013.01 - EP US); H01B 1/06 (2013.01 - EP US); H01M 10/054 (2013.01 - EP US); H01M 10/0562 (2013.01 - EP US); H01M 10/0585 (2013.01 - US); C04B 2235/3201 (2013.01 - EP US); C04B 2235/3224 (2013.01 - EP US); C04B 2235/3244 (2013.01 - EP US); C04B 2235/3418 (2013.01 - EP US); C04B 2235/442 (2013.01 - EP US); C04B 2235/443 (2013.01 - EP US); C04B 2235/447 (2013.01 - EP US); C04B 2235/449 (2013.01 - EP US); C04B 2235/483 (2013.01 - EP US); C04B 2235/604 (2013.01 - EP US); C04B 2235/77 (2013.01 - EP US); H01M 2300/0068 (2013.01 - US); Y02E 60/10 (2013.01 - EP); Y02P 70/50 (2015.11 - EP)
Citation (search report)
See references of WO 2017059838A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2017059838 A1 20170413; CN 108367924 A 20180803; CN 108367924 B 20220222; DE 102015013155 A1 20170413; EP 3359487 A1 20180815; JP 2018538653 A 20181227; JP 6936790 B2 20210922; US 10566654 B2 20200218; US 2018254521 A1 20180906
DOCDB simple family (application)
DE 2016000332 W 20160827; CN 201680054870 A 20160827; DE 102015013155 A 20151009; EP 16784384 A 20160827; JP 2018512379 A 20160827; US 201615758345 A 20160827