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1. (WO2019050147) ELECTRODE HAVING IMPROVED ELECTRODE TAB WELDING CHARACTERISTIC AND SECONDARY BATTERY COMPRISING SAME
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Pub. No.: WO/2019/050147 International Application No.: PCT/KR2018/007916
Publication Date: 14.03.2019 International Filing Date: 12.07.2018
IPC:
H01M 2/26 (2006.01) ,B23K 20/10 (2006.01) ,B23K 101/38 (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
20
Current-conducting connections for cells
22
Fixed connections, i.e. not intended for disconnection
26
Electrode connections
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
K
SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
20
Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
10
making use of vibrations, e.g. ultrasonic welding
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
K
SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
101
Articles made by soldering, welding or cutting
36
Electric or electronic devices
38
Conductors
Applicants:
주식회사 엘지화학 LG CHEM, LTD. [KR/KR]; 서울시 영등포구 여의대로 128 128,Yeoui-daero Yeongdeungpo-gu Seoul 07336, KR
Inventors:
김태곤 KIM, Tae Gon; KR
서승엽 SEO, Seung Yeop; KR
신성균 SHIN, Seong Kyun; KR
이남규 LEE, Nam Kyu; KR
최하늘 CHOI, Ha Neuol; KR
Agent:
장낙용 JANG, Nak Yong; KR
이현송 LEE, Hyun Song; KR
최병철 CHOI, Byung Chul; KR
박건우 PARK, Keon Woo; KR
이윤직 LEE, Yoon Jik; KR
Priority Data:
10-2017-011520108.09.2017KR
Title (EN) ELECTRODE HAVING IMPROVED ELECTRODE TAB WELDING CHARACTERISTIC AND SECONDARY BATTERY COMPRISING SAME
(FR) ÉLECTRODE À CARACTÉRISTIQUE DE SOUDURE DE LANGUETTE D'ÉLECTRODE AMÉLIORÉE ET BATTERIE SECONDAIRE COMPRENANT UNE TELLE ÉLECTRODE
(KO) 전극탭의 용접 특성을 개선한 전극 및 이를 포함하는 이차전지
Abstract:
(EN) The present invention relates to an electrode having an improved electrode tab welding characteristic, which includes one or more non-coated-part electrode tabs of the same polarity stacked on each other to maintain welding safety regardless of an increase in the number of stacked electrode layers in order to realize high output and high capacity, and a secondary battery comprising the same. The present invention can prevent disconnection which may occur when a plurality of electrode tabs are welded. Also, in the present invention, a lower end portion of an electrode lead, which is to be welded to the non-coated-part electrode tabs of the same polarity stacked on each other, is pressed to correspond to the non-coated-part electrode tabs. Therefore, the present invention can enhance the flexibility of an electrode step difference in a secondary battery.
(FR) La présente invention porte sur une électrode à caractéristique de soudage de languette d'électrode améliorée, qui comprend une ou plusieurs languettes d'électrode partiellement revêtues de même polarité empilées les unes sur les autres afin de garantir la sécurité de soudure malgré une augmentation du nombre de couches d'électrode empilées de manière à assurer une sortie et une capacité élevées, et sur une batterie secondaire comprenant une telle électrode. La présente invention permet d'empêcher une déconnexion pouvant se produire quand une pluralité de languettes d'électrode sont soudées. En outre, dans la présente invention, une partie d'extrémité inférieure d'un fil d'électrode, destiné à être soudé aux languettes d'électrode partiellement revêtues de même polarité empilées les unes sur les autres, est pressée de façon à correspondre aux languettes d'électrode partiellement revêtues. Par conséquent, la présente invention permet d'améliorer la flexibilité d'une différence de pas d'électrode dans une batterie secondaire.
(KO) 본 발명은 높은 출력과 용량을 구현하기 위하여 적층되는 전극 층의 수가 증가함에 따른 용접 안전성을 유지하기 위하여 복수로 적층된 동일 전극의 무지부 전극탭을 하나 이상 형성시킨 전극탭의 용접 특성을 개선한 전극 및 이를 포함하는 이차전지에 관한 것으로 복수개로 구성된 전극탭의 용접시 발생하는 단선을 배제할 수 있는 효과, 복수로 적층된 동일 전극의 무지부 전극탭과 용접되는 전극리드의 하단부를 상기 무지부 전극탭에 대응되도록 상기 하단부를 타발하여 이차전지 전극단차의 유연성을 높일 수 있는 효과가 있다.
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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, 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)