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1. (WO2019065844) POROUS COMPOSITE FILM, SEPARATOR FOR BATTERY, BATTERY, AND POROUS COMPOSITE FILM PRODUCTION METHOD
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Pub. No.: WO/2019/065844 International Application No.: PCT/JP2018/035945
Publication Date: 04.04.2019 International Filing Date: 27.09.2018
IPC:
H01M 2/16 (2006.01) ,B32B 5/24 (2006.01) ,B32B 27/30 (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
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
27
Layered products essentially comprising synthetic resin
30
comprising vinyl resin; comprising acrylic resin
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:
田口 貴之 TAGUCHI Takayuki; JP
増田 昇三 MASUDA Shozo; JP
清水 泰樹 SHIMIZU Yasuki; 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:
2017-19183829.09.2017JP
Title (EN) POROUS COMPOSITE FILM, SEPARATOR FOR BATTERY, BATTERY, AND POROUS COMPOSITE FILM PRODUCTION METHOD
(FR) FILM COMPOSITE POREUX, SÉPARATEUR DE BATTERIE, BATTERIE ET PROCÉDÉ DE PRODUCTION DE FILM COMPOSITE POREUX
(JA) 多孔複合フィルム、電池用セパレータ、電池、及び多孔複合フィルムの製造方法
Abstract:
(EN) The purpose of this invention is to provide a porous composite film suitable for a separator for a battery having superior cycle properties. Provided is a porous composite film obtained by layering: a porous substrate; and a porous layer on at least one surface of the porous substrate, said porous layer including a fluorine-containing resin and satisfying the following requirements (i), (ii) and (iii). (i) The porous layer has a cross-section void area distribution D150 value of 0.06–0.38μm2, and a cross-section void area distribution D190 value of 0.20–1.15μm2. (ii) The porous layer has a surface pore area distribution D250 value of 0.0060–0.0072μm2, and a surface pore area distribution D290 value of 0.0195–0.0220μm2. (iii) The porous layer has a porosity of 50–70%.
(FR) Le but de la présente invention est de fournir un film composite poreux adapté à un séparateur d'une batterie présentant des propriétés de cycle supérieures. L'invention concerne un film composite poreux obtenu par la stratification : d'un substrat poreux ; et d'une couche poreuse sur au moins une surface du substrat poreux, ladite couche poreuse comprenant une résine contenant du fluor et satisfaisant les exigences (i), (ii) et (iii) suivantes. (i) La couche poreuse présente une valeur D150 de distribution de zone de vide de section transversale de 0,06 à 0,38 μm2, et une valeur D190 de distribution de zone de vide de section transversale de 0,20 à 1,15 μm2. (ii) La couche poreuse présente une valeur D250 de distribution de zone de pores de surface de 0,0060 à 0,0072 μm2, et une valeur D290 de distribution de zone de pores de surface de 0,0195 à 0,0220 μm2. (iii) La couche poreuse présente une porosité de 50 à 70 %.
(JA) サイクル特性に優れた電池のセパレータに好適な多孔複合フィルムを提供する。多孔質基材と、多孔質基材の少なくとも片面に多孔質層が積層された多孔複合フィルムであって、多孔質層が、フッ素含有樹脂を含み、次の要件(i)、(ii)及び(iii)を満たす多孔複合フィルム。 (i)多孔質層の断面空隙面積分布のD50の値が0.06μm以上0.38μm以下、かつ多孔質層の断面空隙面積分布のD90の値が0.20μm以上1.15μm以下。 (ii)多孔質層の表面細孔面積分布のD50の値が0.0060μm以上0.0072μm以下、かつ多孔質層の表面細孔面積分布のD90の値が0.0195μm以上0.0220μm以下。 (iii)多孔質層の空孔率が50%以上70%以下。
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)