SECONDARY BATTERY

• Main Authors: YI, JEONG DOO, SUH, JUN WON, SONG, HYUN HWA, SOHN, JU HEE
• Format: Patent
• Language: English; Korean
• Published: 25.03.2016
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The purpose of the present invention is to increase durability and safety of a secondary battery. According to an embodiment of the present invention, provide is an electrode assembly including: a plurality of first electrode plates including a first coated unit, coated with a first active material, and a first uncoated unit which is bent; a plurality of second electrode plates including a second coated unit, coated with a second active material, and a second uncoated unit which is bent; and a plurality of separators which are arranged between the first electrode plates and the second electrode plates. 본 발명은 이차 전지의 내구성 및 안전성 향상을 위하여, 본 발명의 일 실시예에 따르면, 제1활물질로 코팅된 제1코팅부 및 각각이 절곡된 제1무지부를 구비하는 복수개의 제1극판들, 제2활물질로 코팅된 제2코팅부 및 각각이 절곡된 제2무지부를 구비하는 복수개의 제2극판들, 상기 제1극판들 및 상기 제2극판들 사이에 구비되는 복수개의 세퍼레이터들을 포함하는, 전극 조립체를 제공한다.