专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20190386316A1 FILAMENTARY POSITIVE ELECTRODE FOR SOLID BATTERY, SOLID BATTERY, MANUFACTURING METHOD OF FILAMENTARY POSITIVE ELECTRODE FOR SOLID BATTERY AND MANUFACTURING METHOD OF SOLID BATTERY 审中-公开
公开(公告)号：US20190386316A1
公开(公告)日：2019-12-19
申请号：US16439714
申请日：2019-06-13
申请人： Honda Motor Co.,Ltd.
发明人： Pu Qian , Toshio TOKUNE , Mitsumoto KAWAI
IPC分类号： H01M4/75 , H01M10/058
摘要： The disclosure provides a filamentary positive electrode for solid battery, a solid battery having the filamentary positive electrode for solid battery, a manufacturing method of the filamentary positive electrode for solid battery, and a manufacturing method of the solid battery having the filamentary positive electrode for solid battery. The structure of a positive electrode that constitutes a solid battery is a filamentous structure. A positive electrode active material layer including a positive electrode active material is provided on a surface of a conductive positive electrode filament, and a positive electrode electrolyte layer including an electrolyte is further provided on an outer side of the positive electrode active material layer to form a filamentary positive electrode for solid battery. The filamentary positive electrode for solid battery and a filamentary negative electrode for solid battery, which has a filamentous structure, are laminated to form a solid battery.

2. 发明授权

US11567139B2 Secondary battery diagnostic device 有权
公开(公告)号：US11567139B2
公开(公告)日：2023-01-31
申请号：US17191723
申请日：2021-03-04
申请人： HONDA MOTOR CO., LTD.
发明人： Hiroshi Sakai , Pu Qian
IPC分类号： G01R31/392 , G01R31/3835 , G01R31/385 , H01M10/0525 , H01M10/44 , H01M10/0562 , H01M10/48
摘要： A diagnostic device for a secondary battery which is an all-solid-state battery containing a solid electrolyte transporting lithium ions, in which the diagnostic device includes: an interruption means configured to interrupt a charging current or a discharging current of the secondary battery connected to a circuit; a measuring means configured to measure over time a variation characteristic of a terminal voltage of the secondary battery after the current is interrupted by the interruption means; and a diagnostic means configured to diagnose the cause of the degradation of the secondary battery by comparing a change rate or a change amount in voltage between a charging characteristic specified from measured values of a terminal voltage of the secondary battery measured by the measuring means, a charging/discharging characteristic specified from the measured values of the terminal voltage measured by the measuring means, and a reference characteristic of the secondary battery.

3. 发明授权

US11300627B2 Method for determining battery state of lithium ion secondary battery 有权
公开(公告)号：US11300627B2
公开(公告)日：2022-04-12
申请号：US16889821
申请日：2020-06-02
申请人： HONDA MOTOR CO., LTD.
发明人： Pu Qian , Hiroshi Sakai
IPC分类号： G01R31/392 , G01R31/3842 , H01M10/48 , H01M10/0525
摘要： Provided is a method for determining a battery state of a lithium ion secondary battery that allows for understand a deterioration state of the battery without performing full charging of the battery.
To estimate an entire image of a charge-discharge curve on the basis of a fragmentary charge-discharge curve by analyzing a relaxation process after the electric current interruption to grasp the resistance of a battery and taking into consideration a resulting resistance value.
Specifically, a method for determining a battery state of a lithium ion secondary battery includes: a partial charge-discharge curve calculating step of acquiring, by partial charge or partial discharge, a partial charge-discharge curve which is a part of a charge-discharge curve, and calculating a positive electrode partial charge-discharge curve and a negative electrode partial charge-discharge curve; a resistance grasping step of grasping a resistance value of the lithium ion secondary battery on a basis of a relaxation process of a terminal voltage after interrupting a charging current during charging or a discharge current during discharging; and a charge-discharge curve calculating step of taking into consideration the resistance value thus acquired, and acquiring a calculation charge-discharge curve prepared by calculating an entire image on a basis of the partial charge-discharge curve.

4. 发明授权

US11205781B2 Filamentary positive electrode for solid battery, solid battery, manufacturing method of filamentary positive electrode for solid battery and manufacturing method of solid battery 有权
公开(公告)号：US11205781B2
公开(公告)日：2021-12-21
申请号：US16439714
申请日：2019-06-13
申请人： Honda Motor Co.,Ltd.
发明人： Pu Qian , Toshio Tokune , Mitsumoto Kawai
IPC分类号： H01M4/75 , H01M4/02 , H01M10/058
摘要： The disclosure provides a filamentary positive electrode for solid battery, a solid battery having the filamentary positive electrode for solid battery, a manufacturing method of the filamentary positive electrode for solid battery, and a manufacturing method of the solid battery having the filamentary positive electrode for solid battery. The structure of a positive electrode that constitutes a solid battery is a filamentous structure. A positive electrode active material layer including a positive electrode active material is provided on a surface of a conductive positive electrode filament, and a positive electrode electrolyte layer including an electrolyte is further provided on an outer side of the positive electrode active material layer to form a filamentary positive electrode for solid battery. The filamentary positive electrode for solid battery and a filamentary negative electrode for solid battery, which has a filamentous structure, are laminated to form a solid battery.

5. 发明授权

US11480627B2 Method for determining micro short circuit of lithium ion secondary battery 有权
公开(公告)号：US11480627B2
公开(公告)日：2022-10-25
申请号：US16889822
申请日：2020-06-02
申请人： HONDA MOTOR CO., LTD.
发明人： Pu Qian , Hiroshi Sakai
IPC分类号： G01R31/00 , G01R31/52 , H01M10/0525 , G01R31/385 , G01R31/378 , H01M10/44
摘要： Provided is a method for determining a micro short circuit of a lithium ion secondary battery which is capable of determining the presence or absence of a micro short circuit of the lithium ion secondary battery in a short time.
A relaxation process after the interruption of a discharging current or a charging current is analyzed and a voltage fluctuation component due to micro short circuit is separated and used in the determination.
Specifically, a method for determining a micro short circuit that determines presence or absence of the micro short circuit in a lithium ion secondary battery is provided which includes: a relaxation decomposition step of decomposing a change of a cell voltage in a relaxation process after interrupting charging current during charging or discharging current during discharging into a plurality of decomposition relaxation components; and a micro short circuit determination step of determining presence or absence of micro short circuit by determining presence or absence of a component in which a voltage drop has occurred due to the micro short circuit, among the plurality of decomposition relaxation components.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式