Patent SG-11201908914P-A (SG)
Title: Novel flow features for self-cleaning concentric tubular electrochemical cells
Inventor: Griffis Joshua
IPC: H01M6/34
Filed: 2018-04-13
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 18 October 2018 (18.10.2018) W I PO I PCT 0111111010 0111 °nolo mu VIII m1111° oimIE (10) International Publication Number WO 2018/191662 Al (51) International Patent Classification: C25B 1/26 (2006.01) H01M 6/48 (2006.01) C25B 11/02 (2006.01) H01M 6/52 (2006.01) H01M 6/34 (2006.01) Fl 5D 1/02 (2006.01) G05D 7/00 (2006.01) (21) International Application Number: PCT/US2018/027564 (22) International Filing Date: 13 April 2018 (13.04.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/485,539 14 April 2017 (14.04.2017) US (71) Applicant: EVOQUA WATER TECHNOLOGIES LLC [US/US]; 210 Sixth Avenue, Suite 3300, Pittsburgh, Penn- sylvania 01851 (US). (72) Inventors: GRIFFIS, Joshua; 20 Whitney Drive, Ash- burnham, Massachusetts 01430 (US). LIANG, Li-Shiang; 258 Bolton Road, Harvard, Massachusetts 01430 (US). GREEN, Andrew; 91 Cross Gates Road, Leeds Yorkshire LS15 7PA (GB). BEDDOES, Paul; 1 Bucklewell, Close, Shirehampton Bristol BS11 OELUK (GB). (74) Agent: WILKINS, Frederick C.; 10 Technology Drive, Lowell, Massachusetts 01851 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: with international search report (Art. 21(3)) before the expiration of the time limit for amending the claims and to be republished in the event of receipt of amendments (Rule 48.2(h)) = (54) Title: NOVEL FLOW FEATURES FOR SELF-CLEANING CONCENTRIC TUBULAR ELECTROCHEMICAL CELLS 1180 FIG. 6A 00 O O (57) : Self-cleaning electrochemical cells, systems including self-cleaning electrochemical cells, and methods of operating self-cleaning electrochemical cells are disclosed. The self-cleaning electrochemical cell can include a plurality of concentric electrodes disposed in a housing, for example, a cathode and an anode, a fluid channel defined between the concentric electrodes, a separator residing between the concentric electrodes, first and second end caps coupled to respective ends of the housing, and an inlet cone. The separators may be configured to localize the electrodes and dimensioned to minimize a zone of reduced velocity occurring downstream from the separator. The end caps and inlet cone may be dimensioned to maintain fully developed flow and minimize pressure drop across the electrochemical cell.