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1. 发明授权

US11411421B2 Control device and method for charging a rechargeable battery 有权
公开(公告)号：US11411421B2
公开(公告)日：2022-08-09
申请号：US16070697
申请日：2016-02-02
申请人： TOYOTA MOTOR EUROPE
发明人： Keita Komiyama , Yuki Katoh
IPC分类号： H02J7/00 , H01M10/48 , B60L58/15 , B60L58/12 , B60L58/16 , B60L58/13 , G01R31/44 , G01R31/388 , G01R31/3835
摘要： A control device for controlling charging of a rechargeable battery, the control device including a rechargeable dummy cell, a first circuit configured to charge the battery and the dummy cell, and a second circuit configured to measure the open circuit voltage of the dummy cell. The control device is configured to: determine the open circuit voltage of the dummy cell by using the second circuit, and determine the maximum capacity increment of the battery, which is to be charged until full charging, based on the determined open circuit voltage of the dummy cell. Also, a corresponding method of controlling charging of a rechargeable battery.

2. 发明授权

US10950901B2 System and method for charge protection of a lithium-ion battery 有权
公开(公告)号：US10950901B2
公开(公告)日：2021-03-16
申请号：US16315057
申请日：2017-03-31
申请人： TOYOTA MOTOR EUROPE
发明人： Yuya Ishihara , Yuki Katoh
IPC分类号： H01M10/44 , H02J7/00 , H01M2/34 , H01M10/0525 , H01M10/48 , H01M4/02 , H01M4/38 , H01M10/46
摘要： A method for controlling a charge process of a solid-state battery having a sulfur-based positive electrode is provided. The method includes monitoring and storing a temperature of the solid-state battery and a predetermined interval, when the temperature exceeds a threshold temperature, monitoring the temperature of the solid-state battery and/or processing the stored temperature data of the solid-state battery, for an indication of sulfur sublimation, and terminating a flow of charge current upon detection of the indication of sulfur sublimation.

3. 发明授权

US10483586B2 All-solid-state battery using sodium ion intercalation cathode with Li/Na exchanging layer 有权
公开(公告)号：US10483586B2
公开(公告)日：2019-11-19
申请号：US15771566
申请日：2015-12-17
申请人： TOYOTA MOTOR EUROPE
发明人： Yuki Katoh , Jun Yoshida
IPC分类号： H01M6/18 , H01M10/0562 , H01M10/052 , H01M10/054
摘要： An all-solid-state battery includes a mixture layer which has a physical mixture of a sulfide-based sodium-containing solid electrolyte material and a sulfide-based lithium-containing solid electrolyte material.

4. 发明授权

US11916190B2 Method for producing a solid electrolyte material and a solid electrolyte for solid state batteries 有权
公开(公告)号：US11916190B2
公开(公告)日：2024-02-27
申请号：US16976406
申请日：2018-03-26
申请人： TOYOTA MOTOR EUROPE
发明人： Yuki Katoh , Geoffroy Hautier , Davide Di Stefano , Yaroslav Filinchuk
IPC分类号： H01M10/0562 , C01B25/14 , H01M10/0525
CPC分类号： H01M10/0562 , C01B25/14 , H01M10/0525 , C01P2002/72 , C01P2002/74 , C01P2006/40 , H01M2300/0068
摘要： A method for producing a solid electrolyte for an all-solid state battery, the solid electrolyte having the following chemical formula XM2(PS4)3, where X is lithium (Li), sodium (Na), silver (Ag) or magnesium (Mg0,5) and M is titanium (Ti), zirconium (Zr), germanium (Ge), silicon (Si), tin (Sn) or a mixture of X and aluminium (X+Al) and the method including: mixing powders so as to obtain a powder mixture; pressing a component with powder mixture; and sintering component for a period of time equal to or greater than 100 hours so as to obtain the solid electrolyte. The solid electrolyte exhibits the peaks in positions of 2θ=13.64° (±1°), 13.76° (±1°), 14.72° (±1°), 15.36° (±1°), 15.90° (±1°), 16.48° (±1°), 17.42° (±1°), 17.56° (±1°), 18.58° (±1°), and 22.18° (±1°) in a X-ray diffraction measurement using CuKα line. The disclosure is also related to a method of producing a solid electrolyte.

5. 发明授权

US11161740B2 Method of synthesis of LiTi2(PS4)3 有权
公开(公告)号：US11161740B2
公开(公告)日：2021-11-02
申请号：US16325234
申请日：2016-09-05
申请人： TOYOTA MOTOR EUROPE
发明人： Yuki Katoh
IPC分类号： C01B25/14 , H01M10/052 , H01M10/0562 , C01B25/00
摘要： A method of synthesis of lithium titanium thiophosphate LiTi2(PS4)3 including the steps of: (a) providing a mixture of lithium sulfide Li2S, phosphorus sulfide P2S5 and titanium sulfide TiS2; (b) subjecting the mixture prepared in step (a) to a preliminary reaction step through mechanical milling or melt-quenching to produce an intermediate amorphous sulfide mixture; (c) subjecting the mixture prepared in step (b) to a heat treatment step at a maximum plateau temperature of at least 350° C. and less than 500° C.

6. 发明授权

US10601083B2 Systems and methods for battery discharge control 有权
公开(公告)号：US10601083B2
公开(公告)日：2020-03-24
申请号：US16076091
申请日：2016-02-17
申请人： TOYOTA MOTOR EUROPE
发明人： Keita Komiyama , Yuki Katoh
IPC分类号： H02J7/04 , H01M10/44 , H02J7/00
摘要： A discharging control system for a battery includes temperature sensing means configured to provide a temperature value associated with the battery, voltage sensing means configured to provide a voltage value associated with the battery, pressure sensing means configured to provide a pressure value associated with an internal portion of the battery, and a controller. The controller is configured to determine, before a discharging process is started, a threshold pressure change associated with a discharge of the battery based on map data selected from a predetermined data map associated with the battery, monitor, during the discharging process, a present voltage value obtained by the voltage sensing means, a current pressure value, and a total pressure change based on the current pressure value obtained by the pressure sensing means, permit continuation of the discharging process when the present voltage value falls below a first lower limit voltage value if the total pressure change is less than the threshold pressure change and the current pressure value is greater than a predetermined minimum threshold pressure, and prohibit continuation of the discharging process when any one of the following conditions is true: (i) the present voltage value falls below a second lower limit voltage value that is lower than the first lower limit voltage value; (ii) the total pressure change is greater than or equal to the threshold pressure change; or (iii) the current pressure value is lower than the predetermined minimum threshold pressure.

7. 发明授权

US10547195B2 Systems and methods for battery charge control 有权
公开(公告)号：US10547195B2
公开(公告)日：2020-01-28
申请号：US16076031
申请日：2016-02-17
申请人： TOYOTA MOTOR EUROPE
发明人： Keita Komiyama , Yuki Katoh
IPC分类号： H02J7/04 , H02J7/00 , B60L58/15 , B60L58/24 , H02J7/14
摘要： A charging control system for a battery includes a temperature sensor, a voltage sensor, a pressure sensor, and a controller. The controller is configured to determine a threshold pressure change associated with a full charge of the battery based on map data selected from a predetermined data map associated with the battery, monitor a present voltage value obtained by the voltage sensing means and a total pressure change based on a present pressure value obtained by the pressure sensing means, continue the charging process when the present voltage value exceeds an upper limit voltage value, and total pressure change is less than threshold pressure change, and terminate the charging process when the present voltage value exceeds the upper limit voltage value, and the total pressure change is greater than or equal to the threshold pressure change.

8. 发明授权

US11322967B2 Control device and method for discharging a rechargeable battery 有权
公开(公告)号：US11322967B2
公开(公告)日：2022-05-03
申请号：US16070918
申请日：2016-01-29
申请人： TOYOTA MOTOR EUROPE
发明人： Keita Komiyama , Yuki Katoh
IPC分类号： H02J7/00 , H01M10/48 , H01M10/42 , H02J7/04 , B60L58/13 , B60L50/64 , B60L58/16 , B60L58/14 , G01R19/165 , G01R31/392
摘要： A control device for controlling discharging of a rechargeable battery, the control device being configured to: determine the voltage of the battery during discharging of the battery, stop discharging, when the determined voltage falls below a first predetermined lower voltage limit, determine the voltage of the battery after stopping discharging, determine the voltage difference between the first predetermined lower voltage limit and the determined voltage of the battery after stopping discharging, and continue discharging, when the determined voltage difference exceeds a predetermined threshold. A corresponding method controls discharging of a rechargeable battery.

9. 发明授权

US11063289B2 Increasing ionic conductivity of lithium titanium thiophosphate by sintering 有权
公开(公告)号：US11063289B2
公开(公告)日：2021-07-13
申请号：US16326480
申请日：2016-09-05
申请人： TOYOTA MOTOR EUROPE
发明人： Yuki Katoh
IPC分类号： H01M10/052 , C01G23/00 , H01M10/0562
摘要： A method of treatment of a sample of lithium titanium thiophosphate LiTi2(PS4)3 including: (a) providing a solid sample of lithium titanium thiophosphate LiTi2(PS4)3, (b) compressing the lithium titanium thiophosphate sample provided in step (a) to form a compressed powder layer; and (c) sintering the lithium titanium thiophosphate obtained as a compressed powder layer in step (b) at a temperature of at least 200° C. and at most 400° C.

10. 发明授权

US10879558B2 Materials for solid electrolyte 有权
公开(公告)号：US10879558B2
公开(公告)日：2020-12-29
申请号：US16060176
申请日：2015-12-22
申请人： TOYOTA MOTOR EUROPE
发明人： Yuki Katoh
IPC分类号： H01M10/0562 , H01B1/10 , H01M10/0525 , C01B25/14 , C01G17/00 , C01G19/00 , C01D15/00
CPC分类号： H01M10/0562 , C01B25/14 , C01G17/006 , C01G19/006 , H01B1/10 , H01M10/0525 , C01D15/00 , H01M2300/008 , H01M2300/0068
摘要： The present disclosure relates to a material containing the elements Li, M, P, S and X wherein M=Si, Ge or Sn, and X=F, Cl, Br or I. The material can be used as a sulfide solid electrolyte material, notably for an all-solid-state lithium battery.

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