基本信息:
- 专利标题： 개질 천연 흑연 입자 및 그 제조 방법
- 专利标题（英）：Modified natural graphite particle and method for producing same
- 专利标题（中）：改性天然石墨颗粒及其生产方法
- 申请号：KR1020127025612 申请日：2011-03-28
- 公开(公告)号：KR1020120123593A 公开(公告)日：2012-11-08
- 发明人： 야마모토히로시 , 나가타다츠오 , 니시하라가츠히로 , 네기노리유키 , 야우치아키히로 , 후지와라도루
- 申请人： 신닛테츠스미킨 카부시키카이샤 , 쥬오 덴끼 고교 가부시키가이샤
- 申请人地址： *-*, Marunouchi *-chome, Chiyoda-ku, Tokyo, Japan
- 专利权人： 신닛테츠스미킨 카부시키카이샤,쥬오 덴끼 고교 가부시키가이샤
- 当前专利权人： 신닛테츠스미킨 카부시키카이샤,쥬오 덴끼 고교 가부시키가이샤
- 当前专利权人地址： *-*, Marunouchi *-chome, Chiyoda-ku, Tokyo, Japan
- 代理人： 한양특허법인
- 优先权： JPJP-P-2010-080874 2010-03-31
- 国际申请： PCT/JP2011/057539 2011-03-28
- 国际公布： WO2011125577 2011-10-13
- 主分类号： C01B31/04
- IPC分类号： C01B31/04 ; H01M4/36
The present invention is characterized by having a non-aqueous electrolyte secondary cell was 1.5% less than the surface roughness forming the negative electrode active material, and an object of the invention to provide a natural graphite modified particles, help circle of not less than 0.93 1.0 for the particles up to the diameter of the . This natural graphite modified particles are subjected to pulverization and sphering by applying an impact force to the natural graphite particles, the circularity is a step for obtaining the intermediate produce particles less than more than 0.93 1.0, and the surface by mechanical grinding treatment of the resulting intermediate produced particle subjected to smoothing, it can be obtained by the production method having a step for obtaining a modified natural graphite particles.
公开/授权文献:
- KR101421860B1 개질 천연 흑연 입자 및 그 제조 방법 公开/授权日：2014-07-22