公开(公告)号：US11796597B2

公开(公告)日：2023-10-24

申请号：US17916048

申请日：2021-09-01

申请人： BEIJING INSTITUTE OF TECHNOLOGY

发明人： Rui Xiong ,  Jinpeng Tian ,  Yanzhou Duan

IPC分类号： G01R31/367 ,  G01R31/378

CPC分类号： G01R31/367 ,  G01R31/378

摘要： A method for estimating the state of charge (SOC) of a lithium-ion battery system based on artificial intelligence (AI) is provided. In the method, the relationship between the charging data segments and the SOC of the battery system is established through deep learning, and the SOC at any stage of the charging process can be corrected. SOC in a discharging process is estimated through ampere-hour integration. The estimation method is adaptively updated with a change in the working state of the battery system.

公开(公告)号：US11695138B2

公开(公告)日：2023-07-04

申请号：US17454327

申请日：2021-11-10

申请人： Tongji University

发明人： Tiancai Ma ,  Jiajun Kang ,  Weikang Lin ,  Zhaoli Zhang ,  Kaihang Song

IPC分类号： H01M8/04537 ,  G01R31/3842 ,  G01R31/389 ,  G01R31/378 ,  H01M8/04791

CPC分类号： H01M8/04641 ,  H01M8/04552 ,  H01M8/04582 ,  G01R31/378 ,  G01R31/389 ,  G01R31/3842 ,  H01M8/0482 ,  H01M8/04559 ,  H01M8/04589 ,  H01M8/04649 ,  H01M2250/20

摘要： An online impedance spectrum measuring device and method for a vehicle-mounted hydrogen fuel cell includes: a controllable alternating current source, configured to apply a sinusoidal alternating signal; a cell voltage signal preceding-stage measuring circuit, configured to select to communicate with one monocell via a voltage signal gating circuit; a current sensor and a cell current signal preceding-stage measuring circuit connected with the current sensor; and a signal conditioning and amplifying circuit, a multi-channel simultaneous sampling analog-digital conversion circuit, a digital signal processor and an upper computer, which are connected in sequence, wherein the signal conditioning and amplifying circuit is connected to the cell voltage signal preceding-stage measuring circuit and the cell current signal preceding-stage measuring circuit, separately; and the upper computer is connected with the controllable alternating source and the voltage signal gating circuit.

公开(公告)号：US20230187159A1

公开(公告)日：2023-06-15

申请号：US18064348

申请日：2022-12-12

申请人： dSPACE GmbH

发明人： Paul Gruber

IPC分类号： H01H83/10 ,  G01R31/378

CPC分类号： H01H83/10 ,  G01R31/378

摘要： A protection circuit for a simulated battery cell having an output comprising an output voltage includes: at least one MOSFET connected to the output of the simulated battery cell for short-circuiting the output of the simulated battery cell; a capacitor connected to a gate electrode of the at least one MOSFET; an overvoltage detection device configured to charge the capacitor with the output voltage based on an overvoltage limit of the output voltage being exceeded; and a threshold voltage detection device configured to release the gate electrode based on a threshold value of a voltage at the capacitor not being reached.

公开(公告)号：US11519967B2

公开(公告)日：2022-12-06

申请号：US17065126

申请日：2020-10-07

申请人： CPS Technology Holdings LLC

发明人： Michael R. Carlo ,  Dale A. Gospodarek

IPC分类号： G01R31/385 ,  G01R31/378 ,  G01R31/367 ,  G06V20/62 ,  G06V30/224 ,  G06K9/62

摘要： The present disclosure relates to a battery test system for a vehicle that includes a camera configured to capture an image of a vehicle identification number located on the vehicle, the camera being coupled to a processor which determines characters of the vehicle identification number from the image of the camera and correlates the characters of the vehicle identification number to a vehicle identification number database to receive battery parameters for the vehicle, a battery tester that is removably connected to terminals of a battery of the vehicle and configured to receive battery test results, and a display which conveys information relating to the battery parameters and the battery test results.

公开(公告)号：US20220381837A1

公开(公告)日：2022-12-01

申请号：US17750854

申请日：2022-05-23

申请人： ALSTOM Hydrogène SAS

发明人： Benoit GUENOT ,  André RAKOTONDRAINIBE

IPC分类号： G01R31/385 ,  G01R31/378 ,  G01R19/00 ,  H01M8/0202

摘要： The voltage-measuring device is adapted to perform voltage measurements on a laminate assembly formed of separators and of at least one membrane electrode assembly stacked to form one or more electrochemical cells. It includes two measuring plates on which are distributed a plurality of electrical contacts spaced apart from each other and electrically insulated from each other, the measuring plates being configured to be arranged on either side of the laminate assembly, the measuring face of each measuring plate being applied against a respective separator in such a way that the electrical contacts located on this measuring face are in contact with the separator.

公开(公告)号：US20220179003A1

公开(公告)日：2022-06-09

申请号：US17609382

申请日：2020-05-07

申请人： TWAICE Technologies GmbH

发明人： Michael BAUMANN

IPC分类号： G01R31/378 ,  H01M10/48 ,  G01R31/392 ,  H01M10/0525 ,  G01R31/3835

摘要： A method for characterizing a rechargeable battery (91-96) that is at risk of lithium plating comprises: receiving (1001) operating values (41) of the battery (91-96) as time-series, wherein the operating values of the battery comprise a terminal voltage of the battery (U(t)) and a battery current of the battery (I(t)), determining (1002) a simulated terminal voltage (USim(t)) using a model of the battery (400) on the basis of the battery current (I(t)), comparing (1003) the simulated terminal voltage (USim(t)) with the terminal voltage (U(t)), determining (1004, 1004a, 1004b) a lithium plating state of the battery on the basis of the comparison.

公开(公告)号：US11307260B2

公开(公告)日：2022-04-19

申请号：US17227366

申请日：2021-04-11

申请人： NANJING TECH UNIVERSITY

发明人： Zhirong Wang ,  Jinlong Bai ,  Jia Ju ,  Yangyan Zheng

IPC分类号： G01R31/378 ,  G01R31/3842 ,  G01R31/36 ,  G01N3/14

摘要： The present invention discloses a testing method and a testing system for a safe operating window of a lithium-ion battery in a squeezed state. The testing system includes a mechanical loading device, a heating device, a lithium-ion battery tester and a measuring device. By comparing the influence of a combined use of two or more of mechanical abuse with two different fixed variables, thermal abuse, and electrical abuse on critical conditions of thermal runaway of the lithium-ion battery, the influence of the different forms of abuse on the critical conditions of thermal runaway of the lithium-ion battery can be compared qualitatively and quantitatively, and these data can also be used to determine the safe operating windows of the lithium-ion battery under different abuse conditions.

公开(公告)号：US20220074996A1

公开(公告)日：2022-03-10

申请号：US17014056

申请日：2020-09-08

申请人： Institute of Nuclear Energy Research, Atomic Energy Council, Executive Yuan, R.O.C.

发明人： Hung-Hsien Ku ,  Ning-Yih Hsu ,  Chin-Lung Hsieh ,  Yi-Hsin Hu ,  Qiao-Ya Chen

IPC分类号： G01R31/36 ,  G01R31/378 ,  H01M8/04537 ,  H01M8/18

摘要： An apparatus is provided for measuring the power of electrolytes at different positions of a flow battery by switching six-way valves without reconnecting channels. With the measurements at the positions, weighting is processed to obtain power corresponding to charging statuses for determining accurate power. The charging and discharging of voltage and current of the battery are controlled for constant operations with high efficiency. Consequently, the efficiency of power conversion is improved; energy consumption is reduced; and the battery is always run within a safe power-range for avoiding accidents or damages to the battery. In addition, the present invention is further applicable to a device monitoring the features of a battery unit. The six-way valves online monitor the power at center positions by switching. The values measured at different positions are aimed at the abnormality of the battery unit for processing adjustment or offline replacement to maintain best operation performance.

公开(公告)号：US20210382114A1

公开(公告)日：2021-12-09

申请号：US17290346

申请日：2019-06-04

申请人： EnNet Company Limited

发明人： Noboru OYAMA ,  Shuichiro YAMAGUCHI ,  Rin FURUDATE

IPC分类号： G01R31/367 ,  G01R31/392 ,  G01R31/378 ,  G01R31/388

摘要： A battery diagnosis apparatus and a battery diagnosis method for accurately diagnosing a secondary battery are proposed. A pulse current generator, a voltage measuring instrument that measures a voltage response to application of a current pulse, a first data processing device that obtains a chronopotentiogram (CP) indicating a change in the voltage response over time and normalizes the CP, a database that saves normalized data, and a second data processing device that uses a correlation between the saved data and a battery state expressing factor prepared in advance to make a battery diagnosis are used. Desirably, the current pulse is a current in the same direction at the time of data obtainment and at the time of a diagnosis. Further, a noise filter for an input signal of the CP and resampling means for reducing the number of pieces of data input to the first data processing device are provided.

公开(公告)号：US20210055352A1

公开(公告)日：2021-02-25

申请号：US16980598

申请日：2019-03-05

申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

发明人： Kei TAKAHASHI ,  Koji KUSUNOKI ,  Toshiyuki ISA ,  Akihiro CHIDA ,  Ryo YAMAUCHI ,  Kazutaka KURIKI ,  Ryota TAJIMA

IPC分类号： G01R31/36 ,  G01R31/378 ,  G01R31/392 ,  G01R31/3842 ,  H01M10/48 ,  H01M10/0525

摘要： A control method of a secondary battery in which malfunction is less likely to occur and abnormality detection can be performed with high accuracy is provided. A charge state estimation device of a secondary battery including a device which generates electromagnetic noise, a first detection means which measures a voltage value of a secondary battery electrically connected to the device, a second detection means which measures a current value of the secondary battery electrically connected to the device, a correction means which extracts a causal relationship between electromagnetic noise and a driving pattern from data including multiple electromagnetic noise obtained using the first detection means or the second detection means, and an arithmetic means which calculates a charge rate using a regression model based on data after data correction.