公开(公告)号：US20150024273A1

公开(公告)日：2015-01-22

申请号：US14384784

申请日：2013-03-14

Applicant: TODA KOGYO CORP.

Inventor： Minoru Yamazaki ,  Osamu Sasaki ,  Shoichi Fujino ,  Hideharu Mitsui ,  Takayuki Yamamura ,  Kunihiro Uramatsu ,  Akihisa Kajiyama ,  Ryuta Masaki

IPC: H01M4/36 ,  H01M4/1391 ,  H01M10/0525 ,  H01M4/04

CPC classification number: H01M4/366 ,  C01G53/50 ,  C01P2002/52 ,  C01P2004/03 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2004/80 ,  C01P2006/12 ,  C01P2006/40 ,  H01M4/0416 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/028 ,  H01M2220/30

Abstract: The present invention relates to lithium composite oxide particles which can be produced by mixing nickel-cobalt-manganese-based compound particles, a zirconium raw material and a lithium raw material with each other and then calcining the resulting mixture, and comprise a Zr compound that is allowed to be present on a surface thereof, in which the Zr compound is represented by the chemical formula: Lix(Zr1-yAy)Oz wherein x, y and z are 2.0≦x≦8.0; 0≦y≦1.0; and 2.0≦z≦6.0, respectively, and a content of Zr in the lithium composite oxide particles is 0.05 to 1.0% by weight. By using the lithium composite oxide particles as a positive electrode active substance, it is possible to produce a lithium ion secondary battery that has a low electric resistance at a high temperature, and is excellent in cycle characteristic at a high temperature as well as high-temperature rate characteristic.

Abstract translation: 本发明涉及通过将镍钴锰系化合物颗粒，锆原料和锂原料彼此混合，然后煅烧所得混合物而制备的锂复合氧化物颗粒，并且包含Zr化合物 允许存在于其表面，其中Zr化合物由以下化学式表示：Lix（Zr1-yAy）Oz其中x，y和z分别为2.0和nlE; x＆lt; lE; 8.0; 0＆nlE; y＆nlE; 1.0; 和2.0＆nlE; z＆nlE; 6.0，并且锂复合氧化物颗粒中的Zr含量为0.05-1.0重量％。 通过使用锂复合氧化物粒子作为正极活性物质，可以制造在高温下具有低电阻的锂离子二次电池，并且在高温下具有优异的循环特性， 温度特性。

公开(公告)号：US09564634B2

公开(公告)日：2017-02-07

申请号：US14388931

申请日：2013-03-14

Applicant: TODA KOGYO CORP.

Inventor： Manabu Yamamoto ,  Daisuke Nishikawa ,  Taisei Inoue ,  Osamu Sasaki ,  Hideaki Sadamura

IPC: H01M4/88 ,  H01M4/505 ,  H01M4/525 ,  C01G51/00 ,  C01G53/00 ,  H01M10/052 ,  H01M4/02

CPC classification number: H01M4/505 ,  C01G51/50 ,  C01G51/56 ,  C01G53/006 ,  C01G53/50 ,  C01G53/56 ,  C01P2002/50 ,  C01P2002/52 ,  C01P2002/76 ,  C01P2004/03 ,  C01P2004/50 ,  C01P2004/61 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/80 ,  H01M4/525 ,  H01M10/052 ,  H01M2004/021 ,  H01M2004/028 ,  Y02E60/122 ,  Y02P70/54

Abstract: The present invention relates to positive electrode active substance particles comprising a compound having at least a crystal system belonging to a space group of R-3m and a crystal system belonging to a space group of C2/m, the positive electrode active substance particles having a specific intensity ratio; a content of Mn in the positive electrode active substance particles being controlled such that a molar ratio of Mn/(Ni+Co+Mn) therein is not less than 0.55; and the positive electrode active substance particles comprising an element A (that is at least one element selected from the group consisting of Si, Zr and Y) in an amount of 0.03 to 5% by weight and having a tap density of 0.8 to 2.4 g/cc and a compressed density of 2.0 to 3.1 g/cc. The positive electrode active substance particles can be produced by calcining a mixture of precursor particles comprising the element A, Mn, Ni and/or Co, and a lithium compound.

Abstract translation: 本发明涉及包含至少具有属于R-3m的空间群的晶体系的化合物和属于C2 / m的空间群的晶体系的正极活性物质粒子，所述正极活性物质粒子具有 比强度比; 控制正极活性物质粒子中的Mn含量使得其中Mn /（Ni + Co + Mn）的摩尔比不小于0.55; 并且包含0.03〜5重量％的元素A（即选自Si，Zr和Y的至少一种元素）并且振实密度为0.8〜2.4g的正极活性物质粒子 / cc，压缩密度为2.0〜3.1g / cc。 正极活性物质颗粒可以通过煅烧包含元素A，Mn，Ni和/或Co的前体颗粒和锂化合物的混合物来制备。

公开(公告)号：US20150060725A1

公开(公告)日：2015-03-05

申请号：US14388931

申请日：2013-03-14

Applicant: TODA KOGYO CORP.

Inventor： Manabu Yamamoto ,  Daisuke Nishikawa ,  Taisei Inoue ,  Osamu Sasaki ,  Hideaki Sadamura

IPC: H01M4/505 ,  H01M10/052 ,  H01M4/525

CPC classification number: H01M4/505 ,  C01G51/50 ,  C01G51/56 ,  C01G53/006 ,  C01G53/50 ,  C01G53/56 ,  C01P2002/50 ,  C01P2002/52 ,  C01P2002/76 ,  C01P2004/03 ,  C01P2004/50 ,  C01P2004/61 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/80 ,  H01M4/525 ,  H01M10/052 ,  H01M2004/021 ,  H01M2004/028 ,  Y02E60/122 ,  Y02P70/54

Abstract: The present invention relates to positive electrode active substance particles comprising a compound having at least a crystal system belonging to a space group of R-3m and a crystal system belonging to a space group of C2/m, the positive electrode active substance particles having a specific intensity ratio; a content of Mn in the positive electrode active substance particles being controlled such that a molar ratio of Mn/(Ni+Co+Mn) therein is not less than 0.55; and the positive electrode active substance particles comprising an element A (that is at least one element selected from the group consisting of Si, Zr and Y) in an amount of 0.03 to 5% by weight and having a tap density of 0.8 to 2.4 g/cc and a compressed density of 2.0 to 3.1 g/cc. The positive electrode active substance particles can be produced by calcining a mixture of precursor particles comprising the element A, Mn, Ni and/or Co, and a lithium compound.

Abstract translation: 本发明涉及包含至少具有属于R-3m的空间群的晶体系的化合物和属于C2 / m的空间群的晶体系的正极活性物质粒子，所述正极活性物质粒子具有 比强度比; 控制正极活性物质粒子中的Mn含量使得其中Mn /（Ni + Co + Mn）的摩尔比不小于0.55; 并且包含0.03〜5重量％的元素A（即选自Si，Zr和Y的至少一种元素）并且振实密度为0.8〜2.4g的正极活性物质粒子 / cc，压缩密度为2.0〜3.1g / cc。 正极活性物质颗粒可以通过煅烧包含元素A，Mn，Ni和/或Co的前体颗粒和锂化合物的混合物来制备。

公开(公告)号：US11492266B2

公开(公告)日：2022-11-08

申请号：US16663546

申请日：2019-10-25

Applicant: TODA KOGYO CORP.

Inventor： Akihisa Kajiyama ,  Ryuta Masaki ,  Tsuyoshi Wakiyama ,  Tetsuya Kashima ,  Shoichi Fujino ,  Osamu Sasaki ,  Kazutoshi Matsumoto

IPC: C01G51/00 ,  H01M4/525 ,  C01G53/00 ,  C01G45/12 ,  H01M4/505 ,  H01M4/04 ,  H01M10/0525 ,  H01M4/02

Abstract: Provided herein are processes for producing positive electrode active substance particles for non-aqueous electrolyte secondary batteries which is excellent in life characteristics of a battery with respect to a repeated charging and discharging performance thereof, as well as a non-aqueous electrolyte secondary battery. In particular, provided herein are processes for producing a positive electrode active substance for non-aqueous electrolyte secondary batteries comprising lithium transition metal layered oxide having a composition represented by the formula: Lia(NixCoyMn1-x-y)O2 wherein a is 1.0≤a≤1.15; x is 0

公开(公告)号：US20190157667A1

公开(公告)日：2019-05-23

申请号：US16223248

申请日：2018-12-18

Applicant: TODA KOGYO CORP.

Inventor： Minoru Yamazaki ,  Osamu Sasaki ,  Shoichi Fujino ,  Hideharu Mitsui ,  Takayuki Yamamura ,  Kunihiro Uramatsu ,  Akihisa Kajiyama ,  Ryuta Masaki

IPC: H01M4/36 ,  H01M4/505 ,  H01M4/485 ,  H01M10/0525 ,  H01M4/525

Abstract: The present invention relates to lithium composite oxide particles which can be produced by mixing nickel-cobalt-manganese-based compound particles, a zirconium raw material and a lithium raw material with each other and then calcining the resulting mixture, and comprise a Zr compound that is allowed to be present on a surface thereof, in which the Zr compound is represented by the chemical formula: Lix(Zr1-yAy)Oz wherein x, y and z are 2.0≤x≤8.0; 0≤y≤1.0; and 2.0≤z≤6.0, respectively, and a content of Zr in the lithium composite oxide particles is 0.05 to 1.0% by weight. By using the lithium composite oxide particles as a positive electrode active substance, it is possible to produce a lithium ion secondary battery that has a low electric resistance at a high temperature, and is excellent in cycle characteristic at a high temperature as well as high-temperature rate characteristic.