公开(公告)号：US20150166348A1

公开(公告)日：2015-06-18

申请号：US14566954

申请日：2014-12-11

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Tatsuya IKENUMA ,  Mikio YUKAWA

IPC: C01B31/04 ,  H01M4/58 ,  H01M4/04 ,  H01M4/1393 ,  H01G11/06 ,  H01G11/32 ,  H01G11/86 ,  H01M4/62 ,  H01M6/00

CPC classification number: H01G11/32 ,  C01B32/182 ,  C01B32/184 ,  H01G11/06 ,  H01G11/34 ,  H01G11/50 ,  H01M2/0207 ,  H01M2/0275 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/049 ,  H01M4/1397 ,  H01M4/5825 ,  H01M4/625 ,  H01M10/052 ,  H01M10/0525 ,  H01M2002/0205 ,  H01M2220/20 ,  H01M2220/30 ,  Y02E60/122 ,  Y02E60/13 ,  Y02P70/54

Abstract: Graphene that is formed from graphene oxide and has high conductivity and a method for forming the graphene are provided. A power storage device with high charge discharge capacity and favorable electric properties such as high reliability and high durability and a method for fabricating the power storage device are provided. Chemical reduction and thermal reduction are performed on graphene oxide in this order to form graphene. In the method for fabricating the power storage device including at least a positive electrode, a negative electrode, an electrolytic solution, and a separator, graphene of one or both of a positive electrode and a negative electrode is formed by the forming method of graphene.

Abstract translation: 提供由石墨烯氧化物形成并具有高导电性的石墨烯和形成石墨烯的方法。 提供具有高充电放电容量和良好的电性能如高可靠性和高耐久性的蓄电装置和制造蓄电装置的方法。 以氧化石墨烯依次进行化学还原和热还原以形成石墨烯。 在至少包括正极，负极，电解液和隔板的蓄电装置的制造方法中，通过石墨烯的形成方法形成正极和负极中的一个或两个的石墨烯。

公开(公告)号：US20130337320A1

公开(公告)日：2013-12-19

申请号：US13913650

申请日：2013-06-10

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Mikio YUKAWA

IPC: H01M4/04 ,  H01M4/64

CPC classification number: H01M4/0404 ,  H01M4/0416 ,  H01M4/043 ,  H01M4/0435 ,  H01M4/0471 ,  H01M4/049 ,  H01M4/13 ,  H01M4/136 ,  H01M4/139 ,  H01M4/1397 ,  H01M4/366 ,  H01M4/5805 ,  H01M4/5825 ,  H01M4/62 ,  H01M4/625 ,  H01M4/64 ,  H01M10/0525 ,  H01M2220/30 ,  Y02E60/122 ,  Y02P70/54

Abstract: To provide a method for forming a storage battery electrode including an active material layer with high density in which the proportion of conductive additive is low and the proportion of the active material is high. To provide a storage battery having a higher capacity per unit volume of an electrode with the use of a storage battery electrode formed by the formation method. A method for forming a storage battery electrode includes the steps of forming a mixture including an active material, graphene oxide, and a binder; providing a mixture over a current collector; and immersing the mixture provided over the current collector in a polar solvent containing a reducer, so that the graphene oxide is reduced.

Abstract translation: 提供一种形成具有导电性添加剂的比例低，活性物质的比例高的高密度的活性物质层的蓄电池电极的制造方法。 通过使用通过形成方法形成的蓄电池电极来提供具有每单位体积的电极的更高容量的蓄电池。 形成蓄电池电极的方法包括以下步骤：形成包括活性材料，氧化石墨烯和粘合剂的混合物; 在集电器上提供混合物; 并将设置在集电体上的混合物浸渍在含有还原剂的极性溶剂中，使得氧化石墨烯被还原。