公开(公告)号：US11545668B2

公开(公告)日：2023-01-03

申请号：US14437347

申请日：2013-10-21

申请人： HYDRO-QUEBEC ,  SEI CORPORATION

发明人： Vincent Gariepy ,  Abdelbast Guerfi ,  Kazuma Hanai ,  Pierre Hovington ,  Shinji Saito ,  Takehiko Sawai ,  Kazunori Urao ,  Karim Zaghib

IPC分类号： H01M4/62 ,  H01M10/0525 ,  H01M4/58 ,  H01M4/485 ,  H01M4/587 ,  C01B25/45 ,  H01M4/36

摘要： A method for producing an electrode material for a lithium-ion secondary battery. The method includes the following steps: (a) mixing components of a basic ingredient or active substance of electrode material and a conductive carbon material to obtain a conductive carbon material-composited material; (b) mixing the conductive carbon material-composited material and a surface layer-forming material; an (c) burning the mixture obtained at step (b) to obtain the electrode material. Also, a lithium-ion secondary battery including an electrode which comprises the material.

公开(公告)号：US20150270554A1

公开(公告)日：2015-09-24

申请号：US14437347

申请日：2013-10-21

申请人： HYDRO-QUEBEC ,  SEI CORPORATION

发明人： Vincent Gariepy ,  Abdelbast Guerfi ,  Kazuma Hanai ,  Pierre Hovington ,  Shinji Saito ,  Takehiko Sawai ,  Kazunori Urao ,  Karim Zaghib

IPC分类号： H01M4/62 ,  H01M4/58 ,  H01M10/0525

CPC分类号： H01M4/625 ,  C01B25/45 ,  H01M4/366 ,  H01M4/485 ,  H01M4/5825 ,  H01M4/587 ,  H01M10/0525 ,  H01M2220/20 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011

摘要： A method for producing an electrode material for a lithium-ion secondary battery. The method includes the following steps: (a) mixing components of a basic ingredient or active substance of electrode material and a conductive carbon material to obtain a conductive carbon material-composited material; (b) mixing the conductive carbon material-composited material and a surface layer-forming material; an (c) burning the mixture obtained at step (b) to obtain the electrode material. Also, a lithium-ion secondary battery including an electrode which comprises the material.

摘要翻译： 一种锂离子二次电池用电极材料的制造方法。 该方法包括以下步骤：（a）将电极材料的基本成分或活性物质的组分与导电碳材料混合以获得导电碳材料复合材料; （b）将导电碳材料复合材料和表面层形成材料混合; （c）烧制步骤（b）获得的混合物以获得电极材料。 另外，锂离子二次电池包括包含该材料的电极。

公开(公告)号：US10403893B2

公开(公告)日：2019-09-03

申请号：US14913234

申请日：2014-08-21

申请人： HYDRO-QUEBEC ,  SEI CORP.

发明人： Takehiko Sawai ,  Shinji Saito ,  Kazunori Urao ,  Kazuma Hanai ,  Karim Zaghib ,  Abdelbast Guerfi ,  Martin Dontigny

IPC分类号： H01M4/58 ,  H01M4/04 ,  H01M4/136 ,  H01M4/1391 ,  H01M4/1397 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M4/66 ,  H01M10/0525 ,  H01M4/131 ,  H01M4/36 ,  H01M4/62 ,  H01M10/0568 ,  H01M10/0569 ,  C01B25/45 ,  B60L50/64 ,  H01M4/02

摘要： A positive electrode material is used to produce a positive electrode of a lithium secondary battery, the positive electrode material being a composite lithium material that includes a first lithium compound and a second lithium compound. For instance, the first lithium compound is in the form of particles and comprises at least one compound selected from a layered lithium compound and a spinel-type lithium compound. Preferably, the second lithium compound comprises at least one compound selected from a lithium-containing phosphate compound and a lithium-containing silicate compound. An amorphous carbon material layer and/or graphene-structured carbon material layer is present on the entire surface of the first lithium compound and the second lithium compound. The second lithium compound forms a thin-film layer on part or the entirety of the carbon material layer present on the surface of the first lithium compound particles.

公开(公告)号：US20150295240A1

公开(公告)日：2015-10-15

申请号：US14441845

申请日：2013-01-16

申请人： SEI Corporation

发明人： Takehiko Sawai ,  Shinji Saito ,  Kazuma Hanai

IPC分类号： H01M4/583 ,  H01M10/0525 ,  H01M4/70 ,  H01M10/04

CPC分类号： H01M4/583 ,  H01M4/133 ,  H01M4/366 ,  H01M4/587 ,  H01M4/70 ,  H01M10/0431 ,  H01M10/052 ,  H01M10/0525 ,  H01M2220/20 ,  Y02E60/122

摘要： The present invention provides positive and negative electrodes, for a lithium secondary battery, allowing a battery to be quickly and fully charged in a very short period of time, for example, within one minute and allowing the battery to be used for vehicles at low temperatures. An organic electrolytic solution is permeated into an electrode group formed by winding positive and negative electrodes or by laminating the positive and negative electrodes one upon another with a separator being interposed therebetween to repeatingly occlude and release lithium ions. The positive electrode active substance and the negative electrode active substance have at least one phase selected from among a graphene phase and an amorphous phase as a surface layer thereof. An activated carbon layer is formed on a surface of the positive electrode active substance and that of the negative electrode active substance. An activated carbon layer having a specific surface area not less than 1000 m2/g is formed on a surface of the positive electrode active substance and that of the negative electrode active substance.

摘要翻译： 本发明提供了一种用于锂二次电池的正电极和负电极，其允许电池在非常短的时间内快速充满电，例如在一分钟之内，并允许电池在低温下用于车辆 。 将有机电解液渗透到通过卷绕正极和负极形成的电极组中，或者通过将正极和负极彼此层叠并隔着间隔物重复地封闭和释放锂离子。 正极活性物质和负极活性物质具有选自石墨烯相和非晶相中的至少一个相作为其表面层。 活性炭层形成在正极活性物质和负极活性物质的表面上。 在正极活性物质和负极活性物质的表面上形成比表面积不小于1000m 2 / g的活性炭层。

公开(公告)号：US09660269B2

公开(公告)日：2017-05-23

申请号：US14441845

申请日：2013-01-16

申请人： SEI Corporation

发明人： Takehiko Sawai ,  Shinji Saito ,  Kazuma Hanai

IPC分类号： H01M4/583 ,  H01M4/70 ,  H01M4/133 ,  H01M4/36 ,  H01M4/587 ,  H01M10/04 ,  H01M10/0525 ,  H01M10/052

CPC分类号： H01M4/583 ,  H01M4/133 ,  H01M4/366 ,  H01M4/587 ,  H01M4/70 ,  H01M10/0431 ,  H01M10/052 ,  H01M10/0525 ,  H01M2220/20 ,  Y02E60/122

摘要： The present invention provides positive and negative electrodes, for a lithium secondary battery, allowing a battery to be quickly and fully charged in a very short period of time, for example, within one minute and allowing the battery to be used for vehicles at low temperatures. An organic electrolytic solution is permeated into an electrode group formed by winding positive and negative electrodes or by laminating the positive and negative electrodes one upon another with a separator being interposed therebetween to repeatingly occlude and release lithium ions. The positive electrode active substance and the negative electrode active substance have at least one phase selected from among a graphene phase and an amorphous phase as a surface layer thereof. An activated carbon layer is formed on a surface of the positive electrode active substance and that of the negative electrode active substance.