(19)

(11)

EP 3 087 631 A1

(12)

(43) Date of publication: 02.11.2016 Bulletin 2016/44 (21) Application number: 14820873.9 (22) Date of filing: 22.12.2014

(51) International Patent Classification (IPC):  H01M 4/60(2006.01) H01M 10/052(2010.01) H01M 4/62(2006.01) (86) International application number: PCT/EP2014/079088 (87) International publication number: WO 2015/097197 (02.07.2015 Gazette 2015/26)

(84) Designated Contracting States: 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 States: BA ME (30) Priority: 23.12.2013 EP 13199271 (71) Applicant: Solvay SA 1120 Bruxelles (BE)	(72) Inventor: MARTIN, Roland B-1932 St-Stevens-Woluwe (BE)