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1. (WO2019065787) POROUS FILM, SEPARATOR FOR SECONDARY BATTERIES, AND SECONDARY BATTERY
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Pub. No.: WO/2019/065787 International Application No.: PCT/JP2018/035816
Publication Date: 04.04.2019 International Filing Date: 26.09.2018
IPC:
H01M 2/16 (2006.01) ,B32B 5/28 (2006.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2
Constructional details, or processes of manufacture, of the non-active parts
14
Separators; Membranes; Diaphragms; Spacing elements
16
characterised by the material
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
5
Layered products characterised by the non-homogeneity or physical structure of a layer
22
characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous
24
one layer being a fibrous or filamentary layer
28
impregnated with or embedded in a plastic substance
Applicants:
東レ株式会社 TORAY INDUSTRIES, INC. [JP/JP]; 東京都中央区日本橋室町2丁目1番1号 1-1, Nihonbashi-Muromachi 2-chome, Chuo-ku, Tokyo 1038666, JP
Inventors:
生駒 啓 IKOMA Kei; JP
甲斐 信康 KAI Nobuyasu; JP
佃 明光 TSUKUDA Akimitsu; JP
Agent:
特許業務法人栄光特許事務所 EIKOH PATENT FIRM, P.C.; 東京都港区西新橋一丁目7番13号 虎ノ門イーストビルディング10階 Toranomon East Bldg. 10F, 7-13, Nishi-Shimbashi 1-chome, Minato-ku, Tokyo 1050003, JP
Priority Data:
2017-18989629.09.2017JP
Title (EN) POROUS FILM, SEPARATOR FOR SECONDARY BATTERIES, AND SECONDARY BATTERY
(FR) FILM POREUX, SÉPARATEUR POUR BATTERIES SECONDAIRES ET BATTERIE SECONDAIRE
(JA) 多孔性フィルム、二次電池用セパレータ及び二次電池
Abstract:
(EN) The purpose of the present invention is to provide a separator for secondary batteries at low cost, said separator having excellent battery characteristics by achieving excellent adhesion between a porous substrate and a porous layer, thereby enabling the porous layer to sufficiently exhibit the characteristics thereof. A porous film which is obtained by laminating a porous layer on at least one surface of a porous substrate, said porous layer containing an organic resin that is different from the resin that constitutes the porous substrate. This porous film is configured such that: the projection height of the porous layer at the interface between the porous substrate and the porous layer is 200 nm or more; and the inter-projection distance of the porous layer at the interface between the porous substrate and the porous layer is 1 μm or more.
(FR) Le but de la présente invention est de fournir un séparateur pour batteries secondaires à faible coût, ledit séparateur ayant d'excellentes caractéristiques de batterie en obtenant une excellente adhérence entre un substrat poreux et une couche poreuse, ce qui permet à la couche poreuse de présenter suffisamment les caractéristiques de celui-ci. Un film poreux qui est obtenu par stratification d'une couche poreuse sur au moins une surface d'un substrat poreux, ladite couche poreuse contenant une résine organique qui est différente de la résine qui constitue le substrat poreux. Ce film poreux est configuré de telle sorte que : la hauteur de projection de la couche poreuse au niveau de l'interface entre le substrat poreux et la couche poreuse est d'au minimum 200 nm ; et la distance inter-projections de la couche poreuse au niveau de l'interface entre le substrat poreux et la couche poreuse est d'au minimum 1 µm.
(JA) 本発明の目的は、多孔質基材と多孔質層の密着性が優れることによる多孔質層の特性を十分に発現し、優れた電池特性を有した二次電池用セパレータを低コストで提供することにある。多孔質基材の少なくとも片面に、該多孔質基材を構成する樹脂と異なる有機樹脂を含む多孔質層が積層された多孔性フィルムであって、多孔質基材と多孔質層との界面における多孔質層の突起高さが200nm以上であり、かつ突起間距離が1μm以上である、多孔性フィルム。
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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, 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
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)