Title:
SECONDARY BATTERY HAVING A DIFFERENTIAL LEAD STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2012/011716
Kind Code:
A2
Abstract:
A secondary battery having a differential lead structure according to one aspect of the present invention comprises: an electrode assembly including a positive electrode plate having a positive electrode tap, a negative electrode plate having a negative electrode tap, and a separation layer interposed between the positive electrode plate and the negative electrode plate; a battery case receiving the electrode assembly; a positive electrode lead electrically connected to the positive electrode tap; and a negative electrode lead formed of a different material from that of the positive electrode lead and electrically connected to the negative electrode tap. Each of the positive electrode lead and the negative electrode lead has a mutually different sectional area. The sectional area of a lead having low electrical conductivity is greater than that of a lead having high electrical conductivity.
Inventors:
LEE, Eun-Ju (301 199, Mannyeon-dong Seo-gu, Daejeon 302-834, 302-834, KR)
이은주 (대전 서구 만년동 199번지 301호, 302-834 Daejeon, 302-834, KR)
이은주 (대전 서구 만년동 199번지 301호, 302-834 Daejeon, 302-834, KR)
Application Number:
KR2011/005293
Publication Date:
January 26, 2012
Filing Date:
July 19, 2011
Export Citation:
Assignee:
LG CHEM, LTD. (20 Yoido-dong, Youngdungpo-gu, Seoul 150-721, 150-721, KR)
주식회사 엘지화학 (서울 영등포구 여의도동 20, 150-721 Seoul, 150-721, KR)
LEE, Eun-Ju (301 199, Mannyeon-dong Seo-gu, Daejeon 302-834, 302-834, KR)
주식회사 엘지화학 (서울 영등포구 여의도동 20, 150-721 Seoul, 150-721, KR)
LEE, Eun-Ju (301 199, Mannyeon-dong Seo-gu, Daejeon 302-834, 302-834, KR)
International Classes:
H01M2/30
Attorney, Agent or Firm:
PHIL & ONZI INT'L PATENT & LAW FIRM (Jinsuk B/D, 8F. 1536-7,Seocho-dong, Seocho-g, Seoul 137-872, 137-872, KR)
Download PDF:
Claims: