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公开(公告)号：US10008719B2
公开(公告)日：2018-06-26
申请号：US15124142
申请日：2015-03-20
Applicant: DENSO CORPORATION
Inventor： Yoshinori Satou , Shigeki Komine , Nobuo Yamamoto , Yuta Shimonishi , Yuki Tachibana
IPC: H01B1/08 , H01M4/525 , H01M4/485 , C30B29/32 , C30B29/68 , H01M4/131 , H01M4/505 , H01M4/62 , H01M4/66 , H01M10/0525 , H01M4/04 , H01M4/1391 , H01M4/02
CPC classification number: H01M4/525 , C30B29/32 , C30B29/68 , H01B1/08 , H01M4/0404 , H01M4/131 , H01M4/1391 , H01M4/485 , H01M4/505 , H01M4/623 , H01M4/625 , H01M4/661 , H01M10/0525 , H01M2004/028
Abstract: A positive electrode material includes Li2NiαM1ηM2βO4-γ, where 0
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公开(公告)号：US11561260B2
公开(公告)日：2023-01-24
申请号：US17577058
申请日：2022-01-17
Applicant: DENSO CORPORATION
Inventor： Keisuke Goto , Haruki Tanaka , Mayu Iida , Hiroyasu Suzuki , Nobuo Yamamoto , Shogo Suzuki
IPC: G01R31/392 , G01R31/396 , G01R31/378
Abstract: A used secondary battery module management system server manages a manufacture of a battery assembly. The server stores, in a memory, a correspondence relationship of each of secondary battery modules among identification information, ranks, and status information. The server extracts an available rank from the ranks in response to a rebuilding request for the battery assembly. The available rank is a rank in which the number of the secondary battery modules having the status information indicating that the secondary battery modules are available is equal to or larger than the number of the secondary battery modules required to constitute the battery assembly. The server receives, from an external terminal, the identification information on each of selection secondary battery modules having an identical rank.
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公开(公告)号：US12025676B2
公开(公告)日：2024-07-02
申请号：US17585936
申请日：2022-01-27
Applicant: DENSO CORPORATION
Inventor： Tomomi Asai , Nobuo Yamamoto , Hiroyasu Suzuki , Katsuki Hayashi , Yuya Minabe
IPC: G01R31/392 , G01R31/396 , H01M10/42
CPC classification number: G01R31/392 , G01R31/396 , H01M10/42
Abstract: A degradation degree assessment device for a secondary battery is to assess a degree of degradation of a secondary battery and includes a battery characteristic acquisition unit, a capacity estimation unit, and an assessment unit. The battery characteristic acquisition unit acquires a battery characteristic relating to a voltage transition of the secondary battery in a predetermined voltage section. The assessment unit assesses the degree of degradation of the secondary battery based on the battery characteristic acquired by the battery characteristic acquisition unit or based on a battery characteristic-related value computed on the basis of the battery characteristic.
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公开(公告)号：US10276868B2
公开(公告)日：2019-04-30
申请号：US15367659
申请日：2016-12-02
Applicant: DENSO CORPORATION
Inventor： Nobuo Yamamoto , Yoshikazu Kusano , Yoshinori Sato
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-xNiαM1βM2y O4-ε,where 0.50
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公开(公告)号：US09979022B2
公开(公告)日：2018-05-22
申请号：US15084517
申请日：2016-03-30
Applicant: DENSO CORPORATION
Inventor： Yuta Shimonishi , Nobuo Yamamoto , Shigeki Komine , Yoshinori Satou , Yuki Tachibana
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
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Patent Agency Ranking
公开(公告)号：US11592488B2
公开(公告)日：2023-02-28
申请号：US16284442
申请日：2019-02-25
Applicant: DENSO CORPORATION
Inventor： Ichiro Yamada , Nobuo Yamamoto , Shuhei Yoshida
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.
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公开(公告)号：US11340277B2
公开(公告)日：2022-05-24
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.
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公开(公告)号：US10128533B2
公开(公告)日：2018-11-13
申请号：US15082186
申请日：2016-03-28
Applicant: DENSO CORPORATION , The Gakushuin School Corporation
Inventor： Nobuo Yamamoto , Yoshinori Satou , Shigeki Komine , Daisuke Mori , Yoshiyuki Inaguma
IPC: H01M10/0562 , H01M10/0525 , C01G17/00 , H01B1/08
Abstract: A solid electrolyte material includes: Li2+yGe1−xMxO3. x satisfies an equation of 0≤x
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公开(公告)号：US09882406B2
公开(公告)日：2018-01-30
申请号：US14828727
申请日：2015-08-18
Applicant: DENSO CORPORATION
Inventor： Yoshinori Satou , Masaki Uchiyama , Nobuo Yamamoto , Koji Ohira
CPC classification number: H02J7/007 , H01M10/0525 , H01M10/44 , H01M10/46
Abstract: A lithium-ion battery includes a cathode active material of the Olivine-type crystal structure. The lithium-ion battery is charged under control of a charging control apparatus, which performs a charging process for charging up to a target voltage according to a constant-current and constant-voltage charging method, a negative-electrode potential evaluation process for evaluating a potential change quantity at the negative-electrode, and a voltage setting process for setting the target voltage to a lower voltage based on the potential change quantity of the negative-electrode evaluated by the negative-electrode potential evaluation process. The charging voltage is changed from the target voltage to the set voltage even when the negative-electrode potential changes with an increase in the number of charging and aging deterioration. Thus a positive-electrode potential is suppressed from rising because of less susceptibility to the increase in number of charging and aging deterioration.
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公开(公告)号：US20230122626A1
公开(公告)日：2023-04-20
申请号：US18068691
申请日：2022-12-20
Applicant: DENSO CORPORATION
Inventor： Tomomi ASAI , Nobuo Yamamoto , Hiroyasu Suzuki , Katsuki Hayashi , Yuya Minabe
IPC: G01R31/392 , H02J7/00 , G01R31/371 , G01R31/3842
Abstract: A server for a deterioration degree determination system for a secondary battery includes an estimation formula memory unit and an update unit. The estimation formula memory unit stores an estimation formula for determining a deterioration degree based on a battery characteristic related to transition of a battery state over a predetermined voltage section in the secondary battery or a battery characteristic relationship value related to the battery characteristic. The update unit that updates the estimation formula stored in the estimation formula memory unit based on the battery characteristic related to the transition of the battery state of the secondary battery acquired by charging and discharging the secondary battery in an external terminal.
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