公开(公告)号：US20170331101A1

公开(公告)日：2017-11-16

申请号：US15522734

申请日：2016-03-10

Applicant: DENSO CORPORATION

Inventor： Yuki TACHIBANA ,  Yoshinori SATOU ,  Nobuo YAMAMOTO ,  Shigeki KOMINE ,  Yuta SHIMONISHI

IPC: H01M4/131 ,  H01M10/0525

CPC classification number: H01M4/131 ,  C01G53/52 ,  C01P2002/72 ,  C01P2002/76 ,  C01P2004/04 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525

Abstract: A positive electrode material includes: Li2NiαM1βM2γMnηO4-ε. α satisfies a relational expression of 0.50

公开(公告)号：US20200371145A1

公开(公告)日：2020-11-26

申请号：US16992578

申请日：2020-08-13

Applicant: DENSO CORPORATION

Inventor： Nobuo YAMAMOTO ,  Ichiro YAMADA ,  Shuhei YOSHIDA ,  Masaya NAKAMURA ,  Takehiko YAMAKI ,  Hiroyasu SUZUKI ,  Katsuki HAYASHI

IPC: G01R27/26 ,  G01R31/389 ,  G01R31/388

Abstract: An abnormality determination device for a secondary battery includes an internal-resistance calculation unit, a threshold memory unit, a capacity balance comparison unit, and an abnormality determination unit. The internal-resistance calculation unit detects an internal resistance in a negative-electrode reaction resistance dominant region in which a reaction resistance of a negative electrode is dominant in a charge and discharge reaction of the secondary battery. The threshold memory unit stores a capacity balance threshold used as a reference for determining abnormality in a balance between a capacity of a positive electrode and a capacity of the negative electrode in the secondary battery. The capacity balance comparison unit compares the internal resistance calculated by the internal-resistance calculation unit with the capacity balance threshold stored in the threshold memory unit. The abnormality determination unit determines abnormality in capacity balance in the secondary battery based on a comparison result from the capacity balance comparison unit.

公开(公告)号：US20190265303A1

公开(公告)日：2019-08-29

申请号：US16284442

申请日：2019-02-25

Applicant: DENSO CORPORATION

Inventor： Ichiro YAMADA ,  Nobuo YAMAMOTO ,  Shuhei YOSHIDA

IPC: G01R31/36 ,  H01M10/48

Abstract: A battery monitoring system includes a data acquiring unit and a failure determining unit. The data acquiring unit acquires a plurality of types of monitoring data to monitor a state of a secondary battery. The failure determining unit determines whether the secondary battery has failed. The failure determining unit performs sparsity regularization using the monitoring data as variables and calculates a partial correlation coefficient matrix of the monitoring data. The failure determining unit calculates, as an abnormality level, an amount of change in a partial correlation coefficient, which is a component of the partial correlation coefficient matrix, between two partial correlation coefficient matrices calculated at different periods. The failure determining unit determines that the secondary battery has failed when the calculated abnormality level exceeds a predetermined threshold.

公开(公告)号：US20170170476A1

公开(公告)日：2017-06-15

申请号：US15367659

申请日：2016-12-02

Applicant: DENSO CORPORATION

Inventor： Nobuo YAMAMOTO ,  Yoshikazu KUSANO ,  Yoshinori SATO

IPC: H01M4/525 ,  H01M4/485 ,  H01M4/505 ,  H01M4/38 ,  H01M10/0525 ,  H01M4/587

CPC classification number: H01M4/525 ,  H01M4/386 ,  H01M4/485 ,  H01M4/505 ,  H01M4/587 ,  H01M10/0525 ,  H01M2010/4292 ,  Y02T10/7011

Abstract: A non-aqueous rechargeable battery has a non-aqueous electrolyte and positive and negative electrodes capable of intercalating and deintercalating lithium ions. The positive electrode contains a lithium transition metal oxide expressed by Li2-xNiαM1βM2γO4-∈, where 0.50

公开(公告)号：US20160293953A1

公开(公告)日：2016-10-06

申请号：US15084517

申请日：2016-03-30

Applicant: DENSO CORPORATION

Inventor： Yuta SHIMONISHI ,  Nobuo YAMAMOTO ,  Shigeki KOMINE ,  Yoshinori SATOU ,  Yuki TACHIBANA

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

CPC classification number: H01M4/525 ,  H01B1/08 ,  H01M2/0222 ,  H01M4/131 ,  H01M4/505 ,  H01M10/0525 ,  H01M2004/028 ,  H01M2220/30

Abstract: A positive electrode material includes: Li2NiαM1βM2γMnηO4-∈ that has a layered structure including a Li layer and a Ni layer, and in which a Ni—O bond length is shorter than that calculated from the Shannon's ionic radii. α satisfies a relation of 0.50

Abstract translation: 正极材料包括：Li2Ni1M1βM2γMnηO4-∈，其具有包括Li层和Ni层的层状结构，其中Ni-O键长度短于从香农离子半径计算的长度。 α满足0.50 <α≤1.33的关系，β满足0≤β<0.67的关系，γ满足0.33≤γ≤1.1的关系，η满足关系0≤η≤1.00，∈满足关系0 ≤∈1.00，M1表示选自Co和Ga中的至少一种，M2表示选自Ge，Sn和Sb中的至少一种。 正极材料可以表示在用R3m的空间群指数化的粉末X射线衍射的测量中，0.9以上的峰强度比（I 300 / I 104）

公开(公告)号：US20160293948A1

公开(公告)日：2016-10-06

申请号：US15066057

申请日：2016-03-10

Applicant: DENSO CORPORATION

Inventor： Nobuo YAMAMOTO ,  Yoshinori SATOU ,  Shigeki KOMINE ,  Yuta SHIMONISHI ,  Yuki TACHIBANA

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

CPC classification number: H01M4/505 ,  H01M4/366 ,  H01M4/525 ,  H01M10/052 ,  H01M2004/028

Abstract: A positive electrode material includes: Li2NiαM1βM2γMnηO4-ε; a layered structure including a Li layer and a Ni layer; and a chemical bond of M2-O. α satisfies an equation of 0.50

Abstract translation: 正极材料包括：Li2Ni1M1βM2γMnηO4-ε; 包括Li层和Ni层的层状结构; 和M2-O的化学键。 α满足0.50 <α≤1.33的等式。 β满足0≤β<0.67的等式。 γ满足0.33≤γ≤1.1的等式。 η满足0≤η<1.00的等式。 ε满足0≤ε≤1.00的等式。 M1表示选自Co和Ga的至少一种，M2表示选自Ge，Sn和Sb中的至少一种;