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1. (WO2019044491) ELECTRODE FOR ELECTRICITY STORAGE DEVICES AND METHOD FOR PRODUCING SAME
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2019/044491 International Application No.: PCT/JP2018/030262
Publication Date: 07.03.2019 International Filing Date: 14.08.2018
IPC:
H01M 4/134 (2010.01) ,H01M 4/13 (2010.01) ,H01M 4/1395 (2010.01) ,H01M 4/38 (2006.01) ,H01M 4/48 (2010.01) ,H01M 4/62 (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
4
Electrodes
02
Electrodes composed of, or comprising, active material
13
Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
134
Electrodes based on metals, Si or alloys
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
13
Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
13
Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
139
Processes of manufacture
1395
of electrodes based on metals, Si or alloys
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
36
Selection of substances as active materials, active masses, active liquids
38
of elements or alloys
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
36
Selection of substances as active materials, active masses, active liquids
48
of inorganic oxides or hydroxides
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
62
Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
Applicants:
日本電気株式会社 NEC CORPORATION [JP/JP]; 東京都港区芝五丁目7番1号 7-1, Shiba 5-chome, Minato-ku, Tokyo 1088001, JP
Inventors:
玉井 卓 TAMAI, Suguru; JP
石川 仁志 ISHIKAWA, Hitoshi; JP
Agent:
伊藤 克博 ITO, Katsuhiro; JP
Priority Data:
2017-16639931.08.2017JP
Title (EN) ELECTRODE FOR ELECTRICITY STORAGE DEVICES AND METHOD FOR PRODUCING SAME
(FR) ÉLECTRODE POUR DISPOSITIFS DE STOCKAGE D'ÉLECTRICITÉ ET SON PROCÉDÉ DE FABRICATION
(JA) 蓄電デバイス用電極及びその製造方法
Abstract:
(EN) The purpose of the present invention is to provide a lithium ion secondary battery which has high energy density and improved cycle characteristics. The present invention relates to an electrode for electricity storage devices, which is provided with a negative electrode mixture layer that contains (a) a negative electrode active material (42-2) which contains 1% or more of a material that contains Si as a constituent element, (b) a first polymer (42-1) which covers the negative electrode active material and contains vinylidene fluoride as a monomer unit, and (c) a negative electrode binder (42-3) which contains a second polymer that contains at least one monomer unit selected from the group consisting of acrylic acid, acrylic acid salts, methacrylic acid and methacrylic acid salts, while having a molecular weight of 80,000 or more.
(FR) L'objectif de la présente invention est de fournir une pile auxiliaire au lithium-ion qui présente une haute densité énergétique et des caractéristiques de cycle améliorées. La présente invention concerne une électrode pour dispositifs de stockage d'électricité, qui est pourvue d'une couche de mélange d'électrode négative qui contient (a) un matériau actif d'électrode négative (42-2) qui contient 1 % ou plus d'un matériau qui contient du Si en tant qu'élément constitutif, (b) un premier polymère (42-1) qui recouvre le matériau actif d'électrode négative et contient du fluorure de vinylidène en tant qu'unité monomère, et (c) un liant d'électrode négative (42-3) qui contient un second polymère qui contient au moins une unité monomère choisie dans le groupe constitué par l'acide acrylique, les sels d'acide acrylique, l'acide méthacrylique et les sels d'acide méthacrylique, tout en ayant un poids moléculaire de 80 000 ou plus.
(JA) 本発明は、エネルギー密度が高く、サイクル特性が改善されたリチウムイオン二次電池を提供することを目的とする。本発明は、(a)Siを構成元素として含む材料を1%以上含む負極活物質(42-2)、(b)負極活物質を被覆する、フッ化ビニリデンをモノマー単位として含む第1ポリマー(42-1)、および(c)アクリル酸、アクリル酸塩、メタクリル酸、およびメタクリル酸塩からなる群より選ばれる少なくとも1種のモノマー単位を含む、分子量8万以上の第2ポリマーを含む負極バインダ(42-3)を含有する負極合剤層を備える蓄電デバイス用電極に関する。
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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, 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 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, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)