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1. (WO2018124581) METHOD FOR PRODUCING ROLL-TYPE GAS DIFFUSION LAYER HAVING EXCELLENT SPREADING PROPERTY
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2018/124581 International Application No.: PCT/KR2017/014978
Publication Date: 05.07.2018 International Filing Date: 19.12.2017
IPC:
H01M 8/0245 (2016.01) ,H01M 8/0234 (2016.01) ,D21H 17/48 (2006.01) ,D21H 19/20 (2006.01) ,D21H 25/04 (2006.01) ,D01F 9/12 (2006.01)
[IPC code unknown for H01M 8/0245][IPC code unknown for H01M 8/0234]
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
H
PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
17
Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
20
Macromolecular organic compounds
33
Synthetic macromolecular compounds
46
obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
47
Condensation polymers of aldehydes or ketones
48
with phenols
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
H
PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
19
Coated paper; Coating material
10
Coatings without pigments
14
applied in a form other than the aqueous solution defined in group D21H19/1295
20
comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
H
PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
25
After-treatment of paper not provided for in groups D21H17/-D21H23/104
04
Physical treatment, e.g. heating, irradiating
D TEXTILES; PAPER
01
NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING
F
CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES, OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
9
Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
08
of inorganic material
12
Carbon filaments; Apparatus specially adapted for the manufacture thereof
Applicants:
코오롱인더스트리(주) KOLON INDUSTRIES, INC. [KR/KR]; 서울시 강서구 마곡동로 110(마곡동) (Magok-dong)110, Magokdong-ro Gangseo-gu, Seoul 07793, KR
Inventors:
윤준영 YOON, Joon Young; KR
용다경 YONG, Da Kyoung; KR
Agent:
조활래 CHO, Hwal-Rai; KR
Priority Data:
10-2016-018186229.12.2016KR
Title (EN) METHOD FOR PRODUCING ROLL-TYPE GAS DIFFUSION LAYER HAVING EXCELLENT SPREADING PROPERTY
(FR) PROCÉDÉ DE FABRICATION DE COUCHE DE DIFFUSION DE GAZ DU TYPE ROULEAU AYANT D'EXCELLENTES PROPRIÉTÉS D'ÉTALEMENT
(KO) 펴짐성이 우수한 롤 타입 가스확산층의 제조방법
Abstract:
(EN) In the present invention, a roll-type gas diffusion layer is produced by impregnating carbon paper produced by using a carbon fiber chop having a low modulus of 10 to 100 GPa or less with phenolic resin or the like, carbonizing at 1,800 to 2,400°C, forming a polytetrafluoroethylene resin layer having fine pores on one side among the two sides of the carbonized carbon paper to produce a sheet-like gas diffusion layer, and then winding the produced sheet-like gas diffusion layer on a roll. Since the roll-type gas diffusion layer produced by the present invention is produced from a carbon fiber chop having a low modulus, the gas diffusion layer cut out into a sheet form from the carbon fiber chop was excellent spreading properties for evenly spreading without lifting. Therefore, even if no separate binder is used, sealing between the gas diffusion layer and a fuel cell separating plate is fully achieved thus preventing problems such as leaks and flooding, and it is possible to prevent the electrical conductivity from deteriorating due to the use of the separate binder.
(FR) La présente invention concerne une couche de diffusion de gaz du type rouleau qui est fabriquée par imprégnation de papier de carbone obtenu par utilisation d'un faisceau de fibre de carbone ayant un faible module de 10 à 100 GPa ou moins avec une résine phénolique ou autre, par carbonisation à 1 800 à 2 400 °C, par formation d'une couche de résine de polytétrafluoroéthylène ayant des pores fins sur un côté des deux côtés du papier de carbone carbonisé afin de produire une couche de diffusion de gaz du type feuille, puis par enroulement de la couche de diffusion de gaz du type feuille produite sur un rouleau. Étant donné que la couche de diffusion de gaz du type rouleau, fabriquée selon la présente invention, est fabriquée à partir d'un faisceau de fibre de carbone à faible module, la couche de diffusion de gaz découpée en forme de feuille à partir du faisceau de fibre de carbone dispose d'excellentes propriétés d'étalement permettant un étalement uniforme sans soulèvement. Par conséquent, même sans recours à un liant séparé, l'étanchéité entre la couche de diffusion de gaz et une plaque de séparation de pile à combustible est pleinement obtenue, ce qui permet d'empêcher des problèmes tels que des fuites et une submersion, ainsi qu'une détérioration de la conductivité électrique due à l'utilisation du liant séparé.
(KO) 본 발명에서는 10~100Gpa 이하의 낮은 모듈러스를 갖는 탄소섬유 촙(Chop)을 사용하여 제조된 카본 종이에 페놀수지 등을 함침한 후 1,800~2,400℃로 탄화처리한 다음, 탄화처리된 탄소종이의 양면 중 일면에 미세다공을 갖는 폴리테트라플루오르에틸렌 수지층을 형성하여 시트 상의 가스확산층을 제조한 다음, 제조된 시트 상의 가스확산층을 롤(Roll)에 권취하여 롤 타입 가스확산층을 제조한다. 본 발명으로 제조된 롤 타입 가스확산층은 저 모듈러스를 갖는 탄소섬유 촙(Chop)으로 제조되기 때문에 이로부터 시트 형태로 절단된 가스확산층은 들뜨지 않고 평평하게 펴지는 펴짐성(Spreading property)이 우수하다. 그로 인해, 별도의 바인더를 사용하지 않아도 가스확산층과 연료전지 분리판 사이의 실링(Sealing)이 완벽하게 이루어져 누수(Leak)나 범람(Flooding) 등의 문제가 일어나지 않고, 별도의 바인더 사용으로 인해 전기전도성이 저하되는 것도 방지할 수 있다.
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, 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: Korean (KO)
Filing Language: Korean (KO)