WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO2013146515) POROUS MEMBRANE FOR SECONDARY BATTERIES, METHOD FOR PRODUCING SAME, ELECTRODE FOR SECONDARY BATTERIES, SEPARATOR FOR SECONDARY BATTERIES, AND SECONDARY BATTERY
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2013/146515    International Application No.:    PCT/JP2013/058023
Publication Date: 03.10.2013 International Filing Date: 21.03.2013
IPC:
H01M 2/16 (2006.01), H01M 4/13 (2010.01)
Applicants: ZEON CORPORATION [JP/JP]; 6-2, Marunouchi 1-chome, Chiyoda-ku, Tokyo 1008246 (JP)
Inventors: KANEDA, Takuya; (JP)
Agent: SAKAI, Hiroaki; Sakai International Patent Office, Kasumigaseki Building, 2-5, Kasumigaseki 3-chome, Chiyoda-ku, Tokyo 1006020 (JP)
Priority Data:
2012-074234 28.03.2012 JP
Title (EN) POROUS MEMBRANE FOR SECONDARY BATTERIES, METHOD FOR PRODUCING SAME, ELECTRODE FOR SECONDARY BATTERIES, SEPARATOR FOR SECONDARY BATTERIES, AND SECONDARY BATTERY
(FR) MEMBRANE POREUSE POUR BATTERIES SECONDAIRES, PROCÉDÉ DE FABRICATION DE CELLE-CI, ÉLECTRODE POUR BATTERIES SECONDAIRES, SÉPARATEUR POUR BATTERIES SECONDAIRES, ET BATTERIE SECONDAIRE
(JA) 二次電池用多孔膜及びその製造方法、二次電池用電極、二次電池用セパレーター並びに二次電池
Abstract: front page image
(EN)A porous membrane for secondary batteries, which contains non-conductive particles and a binder for porous membranes. The non-conductive particles are polymer particles having a core-shell structure, and the core portion of each non-conductive particle has a glass transition point within 30-90°C, while the shell portion of each non-conductive particle has a glass transition point which is higher than that of the core portion by 10°C or more. The thickness of the shell portion is 0.01-3.0% of the number average particle diameter of the non-conductive particles, and the number average particle diameter (A) of the non-conductive particles and the number average particle diameter (B) of the binder for porous membranes satisfy (A) > (B).
(FR)L'invention concerne une membrane poreuse pour batteries secondaires, qui contient des particules non conductrices et un liant pour membranes poreuses. Les particules non conductrices sont des particules polymères ayant une structure cœur-enveloppe, et la partie cœur de chacune des particules non conductrices a un point de transition vitreuse compris entre 30 et 90°C, alors que la partie enveloppe de chacune des particules non conductrices a un point de transition vitreuse qui est supérieur à celui de la partie cœur de 10°C ou plus. L'épaisseur de la partie enveloppe est de 0,01 à 3,0 % du diamètre de particule moyen en nombre des particules non conductrices, et le diamètre de particule moyen en nombre (A) des particules non conductrices et le diamètre de particule moyen en nombre (B) du liant pour membranes poreuses satisfait (A) > (B).
(JA) 非導電性粒子及び多孔膜用バインダーを含み、前記非導電性粒子が、コアシェル構造を有する重合体の粒子であり、前記非導電性粒子のコア部が、30℃~90℃にガラス転移点を有し、前記非導電性粒子のシェル部が、前記コア部よりも10℃以上高いガラス転移点を有し、前記シェル部の厚さが、前記非導電性粒子の個数平均粒子径の0.01%~3.0%であり、前記非導電性粒子の個数平均粒子径(A)と、前記多孔膜用バインダーの個数平均粒子径(B)が、(A)>(B)である、二次電池用多孔膜。
Designated States: 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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, 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, 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.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)