公开(公告)号：KR1020050024097A

公开(公告)日：2005-03-10

申请号：KR1020030061908

申请日：2003-09-04

Applicant: 재단법인서울대학교산학협력재단

Inventor： 주경희 ,  손헌준 ,  강탁

IPC: H01M10/05

CPC classification number: H01M10/0562 ,  H01M10/052

Abstract: PURPOSE: Provided are an amorphous lithium sulfate solid electrolyte with high ionic conductivity and superior electrochemical properties, and a producing method thereof. CONSTITUTION: The amorphous lithium sulfate solid electrolyte is produced by the method comprising the steps of: (a) performing primary heat treatment of lithium sulfate powders at a temperature of 200-500 deg.C for 3-6 hours, followed by secondary heat treatment at a temperature of 550-700 deg.C for 5-24 hours; (b) uniaxially press molding the resultant under a pressure of 0.8 to 2.7 ton/cm¬2 after heat-treatments in step (a); and (c) sintering the obtained molded product at a temperature of 550-700 deg.C for 5 to 24 hours to form a target for the electrolyte; and (d) sputtering the obtained target to deposit a thin lithium sulfate-based solid electrolytic membrane.

Abstract translation: 目的：提供一种具有高离子导电性和优异电化学性能的无定形硫酸锂固体电解质及其制备方法。 构成：无定形硫酸锂固体电解质通过以下方法制造：（a）在200-500℃的温度下对硫酸锂粉末进行一次热处理3-6小时，然后进行二次热处理 在550-700℃的温度下保持5-24小时; （b）在步骤（a）的热处理后，在0.8〜2.7吨/ cm 2的压力下单轴压制成型体; 和（c）在550-700℃的温度下烧结获得的模塑制品5至24小时以形成电解质的靶; 和（d）溅射所得到的靶以沉积薄硫酸锂基固体电解质膜。