公开(公告)号：KR1020030086151A

公开(公告)日：2003-11-07

申请号：KR1020020024532

申请日：2002-05-03

Applicant: 한국과학기술원

Inventor： 이재영 ,  송민상 ,  한상철 ,  김현석 ,  이호 ,  김진호 ,  안효준

IPC: H01M4/60

Abstract: PURPOSE: Provided is a lithium sulfur secondary battery having improved lifetime at ordinary temperature, which contains poly(ethyleneglycol)dimethyl ether(PEGDME) as an electrolyte and a mesh- or foam-type metal as a current collector of a sulfur cathode. CONSTITUTION: The lithium sulfur secondary battery contains the PEGDME as the electrolyte and the mesh- or foam-type metal as the current collector of the sulfur cathode. The PEGDME has an average molecular weight of 500-750 and contains 0.1-1M of trifluoro methane sulfonate imide. And the metal used as the current collector of the cathode is nickel or aluminum.

Abstract translation: 目的：提供一种在常温下具有改善寿命的锂硫二次电池，其包含作为电解质的聚（乙二醇）二甲醚（PEGDME）和作为硫阴极的集电体的网状泡沫型金属。 构成：锂硫二次电池含有作为电解质的PEGDME和作为硫阴极的集电体的网状泡沫型金属。 PEGDME的平均分子量为500-750，含有0.1-1M的三氟甲磺酸酰亚胺。 用作阴极集电体的金属是镍或铝。