公开(公告)号：KR1020020066784A

公开(公告)日：2002-08-21

申请号：KR1020010007131

申请日：2001-02-13

Applicant: 임수근 ,  안효준

Inventor： 강근영 ,  안효준 ,  한지성 ,  최대철 ,  류호석 ,  권현성 ,  박철완 ,  신준호 ,  김준홍 ,  안주현 ,  김기원 ,  이재영

IPC: H01M10/05

CPC classification number: H01M10/052 ,  H01M10/0565

Abstract: PURPOSE: Provided are a solid polyelectrolyte suitable for high capacity lithium sulfur battery, and a method for producing the same which reduce manufacturing time of polyelectrolyte without degrading a capability of polyelectrolyte. CONSTITUTION: The solid polyelectrolyte for lithium-sulfur battery consists of any one of polymer selected from PVC(polyacrylonitride) and PMMA(polymethyl-methacrylate); and any one of plasticizer selected from EC(ethylene carbonate) and PC(propylene carbonate); and a lithium salt for increasing an ion-conductivity. The plasticizer content is 1.40-3.26. The polyelectrolyte is produced by the steps of (i) providing any one of polymer selected from PVC and PMMA; (ii) providing any one of plasticizer selected from EC and PC; (iii) providing a lithium salt for increasing an ion-conductivity; (iv) providing an attritor type of ball mill in order to homogeneously mixing the polymer, plasticizer and lithium salt; (v) mixing the polymer, plasticizer and lithium salt in the ball mill and forming a mixed solution using solvent; and (vi) drying the mixed solution to form a thin film.

Abstract translation: 目的：提供适用于高容量锂硫电池的固体聚电解质及其制造方法，其减少聚电解质的制造时间而不降低聚电解质的能力。 构成：锂硫电池的固体聚电解质由选自PVC（聚丙烯氮化物）和PMMA（聚甲基丙烯酸甲酯）的聚合物组成。 和选自EC（碳酸亚乙酯）和PC（碳酸亚丙酯）的增塑剂中的任何一种; 和用于增加离子传导性的锂盐。 增塑剂含量为1.40-3.26。 聚电解质通过以下步骤制备：（i）提供选自PVC和PMMA的任何一种聚合物; （ii）提供任选一种选自EC和PC的增塑剂; （iii）提供锂盐以提高离子电导率; （iv）提供磨碎机类型的球磨机以均匀混合聚合物，增塑剂和锂盐; （v）在球磨机中混合聚合物，增塑剂和锂盐，并使用溶剂形成混合溶液; 和（vi）将混合溶液干燥以形成薄膜。

公开(公告)号：KR1020020066783A

公开(公告)日：2002-08-21

申请号：KR1020010007130

申请日：2001-02-13

Applicant: 임수근 ,  안효준

Inventor： 박철완 ,  류호석 ,  강근영 ,  권현성 ,  최대철 ,  한지성 ,  김창호 ,  신준호 ,  김형주 ,  김준홍 ,  안주현 ,  안효준 ,  김기원 ,  이재영 ,  허보영

IPC: H01M4/60

Abstract: PURPOSE: Provided are a high capacity sulfur cathode for lithium secondary battery having excellent discharge capacity, and a method for producing the same. CONSTITUTION: The sulfur cathode for lithium battery consists of mixture of an active material consisting of sulfur-based components, and an electrolyte used as battery conducting material and ion conductor. The sulfur cathode comprises 60-80 wt% of sulfur-based components with respect to 100 wt% of the mixture. The sulfur cathode has a discharge capacity of 70% or more of theorical discharge capacity(1675 mAh/sulfur(g)). The sulfur cathode further comprises 5-20 wt% of PEO(polyethylene oxide) and 3-17 wt% of carbon in order to increase physical strength, electrical conductivity, and ion conductivity.

Abstract translation: 目的：提供具有优异放电容量的锂二次电池的高容量硫阴极及其制造方法。 构成：用于锂电池的硫阴极包括由硫基组分组成的活性材料和用作电池导电材料和离子导体的电解质的混合物。 硫阴极相对于100重量％的混合物包含60-80重量％的硫基组分。 硫阴极的放电容量为理论放电容量的70％以上（1675mAh /硫（g））。 硫阴极还包含5-20重量％的PEO（聚环氧乙烷）和3-17重量％的碳，以增加物理强度，导电性和离子传导性。