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1. (WO2018078698) SEPARATOR, AND SECONDARY BATTERY CONTAINING SEPARATOR
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Pub. No.: WO/2018/078698 International Application No.: PCT/JP2016/081467
Publication Date: 03.05.2018 International Filing Date: 24.10.2016
IPC:
H01M 2/16 (2006.01) ,C08J 9/26 (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
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
J
WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
9
Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
26
by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out
Applicants:
住友化学株式会社 SUMITOMO CHEMICAL COMPANY, LIMITED [JP/JP]; 東京都中央区新川二丁目27番1号 27-1, Shinkawa 2-chome, Chuo-ku, Tokyo 1048260, JP
Inventors:
橋脇 弘樹 HASHIWAKI Hiroki; JP
村上 力 MURAKAMI Chikara; JP
鈴木 純次 SUZUKI Junji; JP
Agent:
特許業務法人高橋・林アンドパートナーズ TAKAHASHI, HAYASHI AND PARTNER PATENT ATTORNEYS, INC.; 東京都大田区蒲田5-24-2 損保ジャパン日本興亜蒲田ビル9階 Sonpo Japan Nipponkoa Kamata Building 9F, 5-24-2 Kamata, Ota-ku, Tokyo 1440052, JP
Priority Data:
Title (EN) SEPARATOR, AND SECONDARY BATTERY CONTAINING SEPARATOR
(FR) SÉPARATEUR, ET BATTERIE SECONDAIRE CONTENANT UN SÉPARATEUR
(JA) セパレータ、およびセパレータを含む二次電池
Abstract:
(EN) The purpose of the present invention is to provide a separator that can suppress increases in internal resistance and can suppress degradation of battery characteristics, and a secondary battery that contains said separator. A separator which comprises a first layer made from a porous polyolefin and an organic antioxidant, and a secondary battery which contains said separator are provided. The first layer has a parameter X, defined in the expression, of 0-20. Here, MDtanδ and TDtanδ are the flow direction loss tangent and the width direction loss tangent, respectively, obtained by viscoelasticity measurement of the first layer at a temperature of 90°C and a frequency of 10 Hz. The whiteness index of the first layer is 85-98.
(FR) Le but de la présente invention est de fournir un séparateur qui peut empêcher des augmentations de résistance interne et peut empêcher la dégradation des caractéristiques de batterie, et une batterie secondaire qui contient ledit séparateur. L'invention concerne un séparateur qui comprend une première couche constituée d'une polyoléfine poreuse et d'un antioxydant organique, et une batterie secondaire qui contient ledit séparateur. La première couche a un paramètre X, défini dans l'expression, de 0 à 20. Ici, MDtanδ et TDtanδ sont la tangente de perte de direction d'écoulement et la tangente de perte de direction de largeur, respectivement, obtenue par mesure de viscoélasticité de la première couche à une température de 90 °C et une fréquence de 10 Hz. L'indice de blancheur de la première couche est de 85 à 98.
(JA) 内部抵抗の増加と電池特性の低下が抑制可能なセパレータ、およびこれを含む二次電池を提供する。多孔質ポリオレフィンと、有機酸化防止剤からなる第1の層を有するセパレータ、およびこれを含む二次電池が提供される。第1の層は、以下の式で定義されるパラメータXが0以上20以下であり、【数1】ここで、MDtanδとTDtanδはそれぞれ、温度90℃、周波数10Hzにおける第1の層の粘弾性測定で得られる流れ方向の損失正接、幅方向の損失正接である。第1の層のホワイトインデックスは85以上98以下である。
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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, JP, KE, KG, 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)