公开(公告)号：KR1020040032421A

公开(公告)日：2004-04-17

申请号：KR1020020061547

申请日：2002-10-09

Applicant: 한국전자통신연구원

Inventor： 박용준 ,  김광만 ,  홍영식 ,  오향란 ,  이영기 ,  류광선 ,  장순호

IPC: H01M4/62

CPC classification number: H01M4/0404 ,  H01M4/131 ,  H01M4/136 ,  H01M4/1391 ,  H01M4/1397 ,  H01M4/485 ,  H01M4/5825 ,  H01M4/622 ,  H01M4/624 ,  H01M10/052

Abstract: PURPOSE: Provided is an environmental-friendly method for making a cathode plate for a lithium secondary battery, which uses an aqueous H2O2-containing solution that is not harmful to human bodies to form high-viscosity slurry suitable for coating on a cathode collector. CONSTITUTION: The method for making a cathode plate comprises: a step(1) for dissolving vanadium pentoxide into an aqueous H2O2-containing solution; a step(3,4) for adding a conductive agent to form a gel; a step(5) for removing moisture from the gel; and a step(6) for coating the gel onto a cathode collector and then drying. Particularly, the aqueous solution comprises 5 to 20 wt% of H2O2. The conductive agent may be added together with a binder, and the conductive agent is preferably super-p and the binder is preferably carboxymethyl cellulose.

Abstract translation: 目的：提供一种用于制造锂二次电池阴极板的环保方法，其使用对人体无害的含H 2 O 2水溶液形成适于涂覆在阴极集电体上的高粘度浆料。 构成：制造阴极板的方法包括：将五氧化二钒溶解在含水H 2 O 2溶液中的步骤（1） 用于添加导电剂以形成凝胶的步骤（3,4）; 用于从凝胶中除去水分的步骤（5）; 以及用于将凝胶涂布到阴极集电体上然后干燥的步骤（6）。 特别地，水溶液含有5〜20重量％的H 2 O 2。 导电剂可以与粘合剂一起加入，导电剂优选为超级p，粘合剂优选为羧甲基纤维素。