公开(公告)号：US09413007B2

公开(公告)日：2016-08-09

申请号：US13992937

申请日：2011-12-09

申请人： Peiyu Sun ,  Zhenqi Wu ,  Gangqiao Liu ,  Eiichiro Tamaki ,  Yasuo Kubota ,  Gang Wu

发明人： Peiyu Sun ,  Zhenqi Wu ,  Gangqiao Liu ,  Eiichiro Tamaki ,  Yasuo Kubota ,  Gang Wu

IPC分类号： H01M4/583 ,  C01B31/04 ,  H01M4/00 ,  B82Y30/00 ,  B82Y40/00 ,  H01M4/04 ,  H01M4/1391 ,  H01M4/62 ,  H01M10/0525

CPC分类号： H01M4/583 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/192 ,  C01B2204/04 ,  C01B2204/20 ,  H01M4/00 ,  H01M4/0409 ,  H01M4/0471 ,  H01M4/1391 ,  H01M4/622 ,  H01M4/623 ,  H01M4/625 ,  H01M10/0525

摘要： Provided are a graphene powder, a production method thereof, and an electrochemical device comprising the same. The graphene powder has an elemental ratio of oxygen atoms to carbon atoms of not less than 0.07 and not more than 0.13 and an elemental ratio of nitrogen atoms to carbon atoms of not more than 0.01. In the production method, the graphene powder is produced by using a dithionous acid salt as a reducing agent. Since the graphene has a low content of nitrogen atoms and a proper amount of oxygen atoms and a proper defect, the graphene is provided with good performance of both dispersibility and conductive property, and is usable as a good conductive additive, such as the one for a lithium ion battery electrode. The production method has the advantages of low cost, high efficiency and low toxicity.

摘要翻译： 本发明提供石墨烯粉末及其制造方法以及包含该方法的电化学装置。 石墨烯粉末的氧原子与碳原子的元素比不小于0.07且不大于0.13，氮原子与碳原子的元素比不大于0.01。 在制造方法中，使用二硫酸盐作为还原剂来制造石墨烯粉末。 由于石墨烯具有低的氮原子含量和适量的氧原子和适当的缺陷，所以石墨烯具有良好的分散性和导电性能，并且可用作良好的导电添加剂，例如用于 锂离子电池电极。 该方法具有成本低，效率高，毒性低的优点。

公开(公告)号：US20130302693A1

公开(公告)日：2013-11-14

申请号：US13992937

申请日：2011-12-09

申请人： Peiyu Sun ,  Zhenqi Wu ,  Gangqiao Liu ,  Eiichiro Tamaki ,  Yasuo Kubota ,  Gang Wu

发明人： Peiyu Sun ,  Zhenqi Wu ,  Gangqiao Liu ,  Eiichiro Tamaki ,  Yasuo Kubota ,  Gang Wu

IPC分类号： H01M4/583 ,  H01M4/00

CPC分类号： H01M4/583 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/192 ,  C01B2204/04 ,  C01B2204/20 ,  H01M4/00 ,  H01M4/0409 ,  H01M4/0471 ,  H01M4/1391 ,  H01M4/622 ,  H01M4/623 ,  H01M4/625 ,  H01M10/0525

摘要： Provided are a graphene powder, a production method thereof, and an electrochemical device comprising the same. The graphene powder has an elemental ratio of oxygen atoms to carbon atoms of not less than 0.07 and not more than 0.13 and an elemental ratio of nitrogen atoms to carbon atoms of not more than 0.01. In the production method, the graphene powder is produced by using a dithionous acid salt as a reducing agent. Since the graphene has a low content of nitrogen atoms and a proper amount of oxygen atoms and a proper defect, the graphene is provided with good performance of both dispersibility and conductive property, and is usable as a good conductive additive, such as the one for a lithium ion battery electrode. The production method has the advantages of low cost, high efficiency and low toxicity.

摘要翻译： 本发明提供石墨烯粉末及其制造方法以及包含该方法的电化学装置。 石墨烯粉末的氧原子与碳原子的元素比不小于0.07且不大于0.13，氮原子与碳原子的元素比不大于0.01。 在制造方法中，使用二硫酸盐作为还原剂来制造石墨烯粉末。 由于石墨烯具有低的氮原子含量和适量的氧原子和适当的缺陷，所以石墨烯具有良好的分散性和导电性能，并且可用作良好的导电添加剂，例如用于 锂离子电池电极。 该方法具有成本低，效率高，毒性低的优点。