(19)

(11)

EP 2 820 171 A1

(12)

(43) Date of publication: 07.01.2015 Bulletin 2015/02 (21) Application number: 13709507.1 (22) Date of filing: 28.02.2013

(51) International Patent Classification (IPC):  C23C 18/16(2006.01) C23C 18/18(2006.01) H01M 4/88(2006.01) (86) International application number: PCT/GB2013/050496 (87) International publication number: WO 2013/128191 (06.09.2013 Gazette 2013/36)

(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: 28.02.2012 GB 201203425 (71) Applicant: The Court Of Edinburgh Napier University Lothian EH10 5DT (GB)	(72) Inventors: DAVIDSON, Alan MacDonald Edinburgh EH10 5DT (GB) SHARP, John Edinburgh EH10 5DT (GB) (74) Representative: Müllejans, Inge et al Murgitroyd & Company Scotland House 165-169 Scotland Street Glasgow G5 8PL Glasgow G5 8PL (GB)