롤형 전극, 및 롤형 전극의 제조 방법

• Main Authors: KUDO TSUYOSHI, UWAI KENTA, SADAKATA YUTA, SASAKI YUSUKE, MIKI FUMIHIRO, MIYATAKE KAZUKI, MATSUZAKI IKUMA, KOMATSU SHIGEO, SATO MASANOBU
• Format: Patent
• Language: Korean
• Published: 16.03.2018
• Subjects: BASIC ELECTRIC ELEMENTS; CONVEYING; ELECTRICITY; HANDLING THIN OR FILAMENTARY MATERIAL; HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES; PACKING; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; STORING; TRANSPORTING

코어의 팽창률이 전극의 팽창률보다 큰 롤형 전극에 있어서, 권취 어긋남의 발생을 억제할 수 있는 수단을 제공한다. 축 방향으로 연장되는, 외주가 대략 원 형상인 코어(10)와, 코어의 팽창률보다 작은 팽창률을 구비하고, 코어의 외주에 롤형으로 권회되는 전극(20)과, 코어에 대하여, 전극의 권취 개시 단부(21)를 고정하는 고정부(30)와, 롤형으로 권회된 전극의 코어에 대한 축 방향의 이동을 규제하는 규제부(40)를 갖는 롤형 전극이다. [Problem] To provide a means capable of suppressing the generation of winding deviation in a roll electrode in which the expansion coefficient of a core is higher than the expansion coefficient of an electrode. [Solution] The roll electrode comprises a core 10 that extends in the axial direction and has an outer circumference that is substantially circular; an electrode 20 that has an expansion coefficient lower than that of the core and is wound into a roll shape on the outer circumference of the core; a fixing part 30 for fixing an end portion 21 from which the electrode starts being wound around the core; and a regulating part 40 for regulating the axial movement of the electrode wound into the roll shape with respect to the core.