公开(公告)号：US20160372740A1

公开(公告)日：2016-12-22

申请号：US15121110

申请日：2015-02-24

Applicant: TODA KOGYO CORP. ,  DENKA COMPANY LIMITED

Inventor： Akihisa KAJIYAMA ,  Teruaki SANTOKI ,  Daisuke MORITA ,  Ryuta MASAKI ,  Takahiko SUGIHARA ,  Tsuyoshi WAKIYAMA ,  Kazutoshi MATSUMOTO ,  Akira YODA ,  Taroh INADA ,  Hiroshi YOKOTA ,  Takashi KAWASAKI

IPC: H01M4/36 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/505 ,  H01M4/62

CPC classification number: H01M4/364 ,  H01M4/131 ,  H01M4/136 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/625 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/028

Abstract: An object of the present invention is to provide a positive electrode mixture capable of conducting stable charging and discharging with a less amount of gasses generated which has an operating voltage or an initial crystal phase transition voltage of not less than 4.5 V on the basis of lithium. The present invention relates to a positive electrode mixture comprising carbon black having a bulk density of not more than 0.1 g/cm3, a crystallite size of 10 to 40 Å, an iodine adsorption of 1 to 150 mg/g, a volatile content of not more than 0.1% and a metal impurity content of not more than 20 ppm, and a positive electrode active substance having an operating voltage or an initial crystal phase transition voltage of not less than 4.5 V on the basis of lithium.

Abstract translation: 本发明的目的是提供一种正极混合物，其能够以较少量的气体进行稳定的充放电，其具有基于锂的工作电压或不小于4.5V的初始晶体相变电压 。 本发明涉及包含炭黑的正极混合物，其堆积密度不大于0.1g / cm 3，微晶尺寸为10至40，碘吸附为1至150mg / g，挥发物含量不为 大于0.1％，金属杂质含量为20ppm以下，以锂为基准的工作电压或初期晶体相变电压为4.5V以上的正极活性物质。

公开(公告)号：US20170194626A1

公开(公告)日：2017-07-06

申请号：US15314736

申请日：2015-06-25

Applicant: TODA KOGYO CORP.

Inventor： Takayuki YAMAMURA ,  Tetsuya KASHIMA ,  Ryuta MASAKI ,  Kazumichi KOGA

IPC: H01M4/131 ,  H01M10/052 ,  H01M4/04 ,  H01M4/52 ,  H01M4/525 ,  H01M4/1391 ,  H01M4/505

CPC classification number: H01M4/131 ,  C01G53/50 ,  C01P2004/03 ,  C01P2004/61 ,  C01P2004/82 ,  C01P2006/12 ,  H01M4/049 ,  H01M4/1391 ,  H01M4/364 ,  H01M4/483 ,  H01M4/505 ,  H01M4/523 ,  H01M4/525 ,  H01M10/052

Abstract: An object of the present invention is to provide positive electrode active substance particles for non-aqueous electrolyte secondary batteries which are excellent in D.C. resistance characteristics under low-temperature conditions and a process for producing the provide positive electrode active substance particles, and a non-aqueous electrolyte secondary battery. The present invention relates to positive electrode active substance particles for non-aqueous electrolyte secondary batteries, comprising lithium composite oxide particles having a layered rock salt structure which are chemically reacted with at least Li and comprise at least one element selected from the group consisting of Ni, Co and Mn, and tungsten oxide particles, in which W is present in an amount of 0.1 to 4.0 mol % based on a total molar amount of Ni, Co and Mn in the lithium composite oxide particles, and the tungsten oxide particles have an average secondary particle diameter of 0.1 to 3.0 μm.

公开(公告)号：US20200058934A1

公开(公告)日：2020-02-20

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: H01M4/505 ,  H01M10/0525 ,  H01M4/04 ,  H01M4/525 ,  C01G53/00

Abstract: Provided 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. 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：US20180026265A1

公开(公告)日：2018-01-25

申请号：US15550874

申请日：2016-02-15

Applicant: TODA KOGYO CORP.

Inventor： Akihisa KAJIYAMA ,  Ryuta MASAKI ,  Tsuyoshi WAKIYAMA ,  Tetsuya KASHIMA ,  Shoichi FUJINO ,  Osamu SASAKI ,  Kazutoshi MATSUMOTO

IPC: H01M4/505 ,  H01M4/04 ,  H01M10/0525 ,  H01M4/525

CPC classification number: H01M4/505 ,  C01G53/006 ,  C01G53/50 ,  C01P2004/61 ,  H01M4/0471 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/028

Abstract: In accordance with the present invention, there are provided 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. The present invention relates to 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