Patent SG-11202000093P-A (SG)
Title: Anode slurry for lithium ion battery
Inventor: HO KAM PIU
IPC: H01M4/04
Filed: 2017-09-29
Abstract: WIPOI PCT 200 400 600 800 Cycle Numbers 1 000 (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) ~~~~~~~~~~~~~ v111111010VIIIOH ioloolliviu minim ono Hs (10) International Publication Number WO 2018/068663 Al (19) World Intellectual Property Organization International Bureau (43) International Publication Date 19 April 2018 (19.04.2018) (51) International Patent Classification: No. 2 Science Park West Avenue, Hong Kong Science Park, HO1M 4/04 (2006.01) HO1M 4/48 (2010.01) Shatin, New Territories, Hong Kong (CN). SHEN, Peihua; HO1M 4/58 (2010.01) HO1M 4/62 (2006.01) No. 1 Building, No. 19 Street, Fengxiangyuan, Phoenix (21) International Application Number: PCT/CN2017/104248 City, Xintang, Zengcheng, Guangzhou, Guangdong 511340 (CN). (74) Agent: YONG HUI INTELLECTUAL PROPERTY; (22) International Filing Date: HUANG, Xin, Room 614, 6/F, Hualian Building, No. 2008 29 September 2017 (29.09.2017) Shennan Middle Road, Futian District, Shenzhen, Guang- dong 518031 (CN). (25) Filing Language: English (81) Designated States (unless otherwise indicated, for every (26) Publication Language: English kind of national protection available): AE, AG, AL, AM, (30) Priority Data: AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, 62/406,405 11 October 2016 (11.10.2016) US 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, (71) Applicant: GRST INTERNATIONAL LIMITED HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, [CN/CN]; Room 2201-2203, 22/F, Yardley Commercial KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, Building, 3 Connaught Road West, Sheung Wan, Hong MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, Kong (CN). OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, (72) Inventors: HO, Kam Piu; Unit 107, 1/F, Bio-Infonnat- SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, ics Centre, No. 2 Science Park West Avenue, Hong Kong TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. Science Park, Shatin, New Territories, Hong Kong (CN). WANG, Ranshi; Unit 107, 1/F, Bio-Infoiinatics Centre, (54) Title: ANODE SLURRY FOR LITHIUM ION BATTERY 10000 9500 7000 < 9000 >, 8500 8000 cc5 0 0) 7500 • — 0 . 3 C .2= u) 6500 6000 Figure 1 (57) : Provided herein is a lithium-ion battery anode slurry, comprising: an anode active material, a conductive agent, a binder material, and a solvent, wherein the anode active material has a particle size D50 in the range from about 10 um to about 40 um, and wherein the slurry coated onto a current collector having a wet film thickness of about 100 um has a drying time of about 5 minutes or less under an environment having a temperature of about 60 °C to about 90 °C and a relative humidity of about 25% to about 40%. The anode slurry disclosed herein has homogeneous ingredient dispersion and quick drying capability for making a lithium-ion battery with high quality and consistent performance. In addition, these properties of the anode slurry increase productivity and reduce the cost of manufacturing lithium-ion batteries. 00 O 1 00 -1 O [Continued on next page] WO 2018/068663 Al MIDE111111111101111111111111111111111111111111 HIM Ell VIII 1111111110111111111111 (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))