基本信息:
- 专利标题： 金属氧化物纳米粒子和碳的复合体、其制造方法、使用有该复合体的电极及电化学元件
- 专利标题（英）：Composite of metal oxide nanoparticles and carbon, method for producing said composite, electrode using said composite, and electrochemical element
- 申请号：CN201180016017.0 申请日：2011-03-31
- 公开(公告)号：CN102844913A 公开(公告)日：2012-12-26
- 发明人： 直井胜彦 , 直井和子 , 石本修一 , 玉光贤次
- 申请人： 日本贵弥功株式会社
- 申请人地址： 日本东京
- 专利权人： 日本贵弥功株式会社
- 当前专利权人： 日本贵弥功株式会社
- 当前专利权人地址： 日本东京
- 代理机构： 中国国际贸易促进委员会专利商标事务所
- 代理人： 李帆
- 优先权： 2010-084644 2010.03.31 JP; 2010-106051 2010.05.04 JP; 2010-250185 2010.11.08 JP
- 国际申请： PCT/JP2011/001966 2011.03.31
- 国际公布： WO2011/122047 JA 2011.10.06
- 进入国家日期： 2012-09-26
- 主分类号： H01M4/50
- IPC分类号： H01M4/50 ; B01J19/28 ; C01B25/45 ; C01B31/02 ; C01G23/00 ; C01G45/02 ; H01G9/058 ; H01M4/13 ; H01M4/139 ; H01M4/36 ; H01M4/485 ; H01M4/58 ; H01M10/0525
Provided is a composite in which 100nm or less-sized metal oxide nanoparticles are supported by carbon in a highly dispersed manner. A composite powder in which the precursor of metal oxide nanoparticles are supported by carbon in a highly dispersed manner is subjected to rapid heating treatment in a nitrogen atmosphere, thereby advancing the crystallization of the metal oxide and allowing the metal oxide nanoparticles to be supported by carbon in a highly dispersed manner. The precursor of the metal oxide nanoparticles and the carbon nanoparticles, which support said precursor, are prepared by means of the mechanochemical reaction produced by applying sheer stress and centrifugal force to a reactant in a whirling reactor. Preferably, the rapid heating treatment in a nitrogen atmosphere is performed at 400 DEG C to 1000 DEG C. The heated composite is then crushed to eliminate the aggregation thereof, thereby homogenizing the dispersion degree of the metal oxide nanoparticles. Manganese oxide, lithium iron phosphate, or lithium titanate may be used as the metal oxide. A carbon nanofiber or Ketjen black may be used as the carbon.
公开/授权文献:
- CN102844913B 金属氧化物纳米粒子和碳的复合体、其制造方法、使用有该复合体的电极及电化学元件 公开/授权日：2016-09-07