公开(公告)号：US20150064559A1

公开(公告)日：2015-03-05

申请号：US14388431

申请日：2013-03-11

申请人： SUMITOMO OSAKA CEMENT CO., LTD.

发明人： Kouji Oono ,  Satoru Oshitari ,  Kazuyo Yamamoto

IPC分类号： H01M4/36 ,  G01R31/36 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/505

CPC分类号： H01M4/366 ,  G01R31/385 ,  G01R31/387 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/448 ,  H01M10/48

摘要： An electrode-active material, a lithium-ion battery, and a method for detecting a discharge state of an electrode-active material that make it possible to realize high load characteristics, high cycle characteristics, and high energy density, have a high degree of safety and stability, and make it possible to easily detect the state of a late stage of discharge are disclosed. The electrode-active material is obtained by coating the surface of a particle containing LiwAxDO4 with a coating layer containing LiyEzGO4. In a discharge curve of the electrode-active material, a second region which follows a first region showing a substantially constant discharge potential and shows a drop in a discharge potential includes a third region in which a rate of change in a discharge potential is lower than an average rate of change in a discharge potential of the second region.

摘要翻译： 能够实现高负载特性，高循环特性和高能量密度的电极活性材料，锂离子电池和用于检测电极活性材料的放电状态的方法具有高度的 公开了安全性和稳定性，并且能够容易地检测到后期放电的状态。 通过用含有Li yEzGO 4的涂层涂布含有LiwAxDO4的颗粒的表面而获得电极活性材料。 在电极活性物质的放电曲线中，跟随显示出基本上恒定的放电电位并显示放电电位下降的第一区域的第二区域包括放电电位变化率低于 第二区域的放电电位的平均变化率。

公开(公告)号：US09793544B2

公开(公告)日：2017-10-17

申请号：US14939608

申请日：2015-11-12

申请人： SUMITOMO OSAKA CEMENT CO., LTD.

发明人： Kazuyo Yamamoto ,  Ryuuta Yamaya ,  Akinori Yamazaki

IPC分类号： H01M10/052 ,  H01M4/58 ,  H01M4/131 ,  C01B25/45 ,  H01M10/0525

CPC分类号： H01M4/5825 ,  C01B25/45 ,  C01P2004/45 ,  C01P2004/60 ,  H01M4/131 ,  H01M10/0525

摘要： A method of manufacturing the positive electrode material for a lithium ion secondary battery includes a first step of mixing Li3PO4, LiOH, H3PO4, an Fe source, a Mn source, and an M source to prepare raw material slurry, and a second step of subjecting the raw material slurry to a reaction under a high temperature and a high pressure. In the first step, mixing amounts of Li and P are set to 3.00≦Li/(Fe+Mn+M)≦3.10 and 1.00≦P/(Fe+Mn+M)≦1.10, mixing amounts of LiOH and H3PO4 are set to 0

公开(公告)号：US09508989B2

公开(公告)日：2016-11-29

申请号：US14796432

申请日：2015-07-10

申请人： SUMITOMO OSAKA CEMENT CO., LTD.

发明人： Kazuyo Yamamoto ,  Ryuuta Yamaya ,  Satoru Oshitari

IPC分类号： H01M4/133 ,  H01M4/36 ,  H01M4/136 ,  H01M4/58 ,  H01M10/0525 ,  C01B25/45 ,  H01M4/62 ,  H01M4/04 ,  H01M4/02

CPC分类号： H01M4/366 ,  C01B25/45 ,  C01P2006/12 ,  C01P2006/40 ,  C01P2006/62 ,  C01P2006/65 ,  H01M4/0404 ,  H01M4/0407 ,  H01M4/136 ,  H01M4/5825 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/028

摘要： To provide a positive electrode material for lithium ion secondary batteries capable of reducing waste loss, a method of producing the same, a positive electrode for lithium ion secondary batteries and a lithium ion secondary battery which contain the above-described positive electrode material for lithium ion secondary batteries. A positive electrode material for lithium ion secondary batteries, wherein the positive electrode material includes inorganic particles whose surfaces are coated with a carbonaceous film, the inorganic particles being represented by a formula LiFexMn1-x-yMyPO4 (0.05≦x≦1.0, 0≦y≦0.14, where M represents at least one selected from the group consisting of Mg, Ca, Co, Sr, Ba, Ti, Zn, B, Al, Ga, In, Si, Ge, and rare earth elements), a specific surface area is 6 m2/g to 20 m2/g, a lightness L* is 0 to 40, and a chroma C* is 0 to 3.5.

摘要翻译： 为了提供能够减少废物损失的锂离子二次电池用正极材料，其制造方法，锂离子二次电池用正极和锂离子二次电池，其含有上述锂离子正极材料 二次电池 一种锂离子二次电池用正极材料，其中正极材料包括其表面涂覆有碳膜的无机颗粒，无机颗粒由式LiFexMn1-x-yMyPO4（0.05≤x≤1.0,0≤y ≦0.14，其中M表示选自Mg，Ca，Co，Sr，Ba，Ti，Zn，B，Al，Ga，In，Si，Ge和稀土元素中的至少一种） 面积为6m 2 / g〜20m 2 / g，亮度L *为0〜40，色度C *为0〜3.5。

公开(公告)号：US09923207B2

公开(公告)日：2018-03-20

申请号：US14220533

申请日：2014-03-20

申请人： SUMITOMO OSAKA CEMENT CO., LTD.

发明人： Koji Oono ,  Takao Kitagawa ,  Tatsuya Nakabeppu ,  Kazuyo Yamamoto

IPC分类号： H01M4/36 ,  H01M4/04 ,  H01M4/62 ,  H01M4/131 ,  H01M10/0525

CPC分类号： H01M4/625 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/366 ,  H01M10/0525

摘要： An electrode material which can improve the mobility of electrons and the mobility of ions at the same time, and, furthermore, does not have a problem of the impairment of the diffusion of lithium ions in a thin layer containing a carbonaceous electron-conductive substance so as to be excellent in terms of load characteristics and energy density, and an electrode and a lithium ion battery are provided. The electrode material of the invention is produced by forming a thin layer made of a carbonaceous electron-conductive substance on surfaces of primary particles made of an electrode active material, in which the carbonaceous electron-conductive substance contains nitrogen atoms.