公开(公告)号：US12027674B2

公开(公告)日：2024-07-02

申请号：US17214447

申请日：2021-03-26

Applicant: Samsung SDI Co., Ltd.

Inventor： Michael Erhart ,  Wolfgang Reinprecht

IPC: H01M10/42 ,  B60L58/12 ,  B60L58/18 ,  H01M10/48 ,  H05K1/02 ,  H05K1/18

CPC classification number: H01M10/425 ,  B60L58/12 ,  B60L58/18 ,  H01M10/482 ,  H01M10/486 ,  H05K1/028 ,  H05K1/181 ,  H01M2010/4271 ,  H01M2220/20 ,  H05K2201/10151

Abstract: A battery system includes: a plurality of battery units, each of the battery units including at least one battery cell, the at least one battery cell including a positive terminal, a negative terminal, and a cell case; and a flexible printed circuit (FPC) including a plurality of integrated circuits (ICs) configured for voltage measurement and temperature measurement. The ICs are interconnected by a wiring structure of the FPC. Each of the ICs is thermally connected to the cell case of the at least one of battery cell of each of the battery units via a contact element in the FPC and is electrically connected via the contact element to the positive terminal of the at least one battery cell of each of the battery units.

公开(公告)号：US12015175B2

公开(公告)日：2024-06-18

申请号：US18322388

申请日：2023-05-23

Applicant: Samsung SDI Co., Ltd.

Inventor： Michael Erhart

IPC: H01M50/519 ,  H01M10/42 ,  H01M50/204 ,  H01M50/516 ,  H01M50/528 ,  H05K3/32 ,  H05K3/36

CPC classification number: H01M50/519 ,  H01M10/4257 ,  H01M50/204 ,  H01M50/516 ,  H01M50/528 ,  H05K3/328 ,  H05K3/361 ,  H01M2010/4271 ,  H05K2203/107 ,  H05K2203/1545

Abstract: A method for connecting a flexible printed circuit (FPC) to a battery module and a cell supervision circuit board (CSCB) is provided. The method includes: providing a coil of a continuous, strip-shaped FPC; unwinding a first section of the FPC from the coil, positioning the first section of the FPC over a first contact portion of the battery module, and welding a conductive structure of the FPC in the first section to the first contact portion of the battery module; unwinding a second section of the FPC from the coil, positioning the second section of the FPC over a contact pad of the CSCB, and welding the conductive structure of the FPC in the second section to the contact pad of the CSCB; and separating the first section and second section of the FPC from the coil of the FPC.

公开(公告)号：US20230261284A1

公开(公告)日：2023-08-17

申请号：US18168481

申请日：2023-02-13

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Matthias Pucher ,  Michael Erhart ,  Bernhard Hadler

IPC: H01M10/6566 ,  H01M50/342 ,  H01M50/581 ,  H01M50/204

CPC classification number: H01M10/6566 ,  H01M50/3425 ,  H01M50/581 ,  H01M50/204 ,  H01M2200/10

Abstract: A battery pack includes: a battery housing including a plurality of crossbeams dividing an interior space of the battery housing into a plurality of separated accommodation chambers; a plurality of cell units arranged within the battery housing, each of the cell units including a plurality of stacked battery cells, each of the accommodation chambers accommodating at least two of the cell units separated by a spacer stacked between the at least two cell units; and a plurality of venting paths respectively arranged per each of the cell units, each of the venting paths connecting the respective cell unit with a respective venting device of the corresponding accommodation chamber without passing an adjacent one of the cell units.

公开(公告)号：US11084397B2

公开(公告)日：2021-08-10

申请号：US16541037

申请日：2019-08-14

Applicant: Samsung SDI Co., Ltd.

Inventor： Michael Erhart

IPC: B60L58/20 ,  B60L58/22 ,  B60L50/60 ,  H02M3/158 ,  B60L58/10

Abstract: A power supply system includes: a plurality of battery cells interconnected between a first stack node and a second stack node and providing a first operation voltage to a high-voltage board net; a low-voltage battery interconnected between the second stack node and a low voltage node and outputting a second operation voltage to a low-voltage board net; a step-down converter interconnected between the first stack node and the second stack node and outputting a third operation voltage to the low voltage node to charge the low-voltage battery; an intermediate node dividing the battery cells into first and second subsets of the battery cells and being connected to the low voltage node via a first switching element; and a control unit configured to detect a terminal voltage of the low-voltage battery and to set the first switching element into a conductive state according to the detected terminal voltage.

公开(公告)号：US09651428B2

公开(公告)日：2017-05-16

申请号：US14085824

申请日：2013-11-21

Applicant: Samsung SDI Co., Ltd.

Inventor： Michael Erhart

IPC: H02J7/00 ,  G01J5/00 ,  G01K1/16 ,  G01K13/00 ,  G01K13/10 ,  G01J5/02 ,  H01M2/34 ,  H01M10/48 ,  H01M10/42

CPC classification number: G01J5/028 ,  H01M2/348 ,  H01M10/482 ,  H01M10/486 ,  H01M2010/4271 ,  H01M2200/10

Abstract: A battery system including a plurality of battery cells and at least one electronic unit having a circuit board and a temperature measuring device with at least two infrared temperature sensors arranged on and operatively connected to the circuit board and configured to measure a temperature of a predetermined measurement region on a surface of the battery cells.

公开(公告)号：US12126048B2

公开(公告)日：2024-10-22

申请号：US17033734

申请日：2020-09-26

Applicant: Samsung SDI Co., Ltd.

Inventor： Martin Weinberger ,  Ralph Wuensche ,  Michael Erhart

IPC: H01M10/643 ,  H01M10/6553 ,  H01M50/15 ,  H01M50/502 ,  H05K1/18

CPC classification number: H01M50/502 ,  H01M10/643 ,  H01M10/6553 ,  H01M50/15 ,  H05K1/189 ,  H01M2200/105 ,  H05K2201/10037

Abstract: A battery module includes: a plurality of aligned battery cells having differently-oriented surfaces; a cell supervision circuit (CSC) configured to receive signals corresponding to the voltage and/or temperature of at least one of the battery cells; and a flexible interconnector comprising a strip-shaped flexible printed circuit (FPC). The FPC includes a first insulating main surface, a second insulating main surface opposite the first insulating main surface, and a plurality of thermally and/or electrically conducting lines between the first insulating main surface and the second insulating main surface. Each of the conducting lines has a contact portion exposed by a contact aperture in the first insulating main surface and/or in the second insulating main surface and a connecting portion for connection to the CSC, and the flexible interconnector wraps around the battery cells such that the contact portions contact the differently-oriented surfaces of the battery cells.

公开(公告)号：US11605945B2

公开(公告)日：2023-03-14

申请号：US17202764

申请日：2021-03-16

Applicant: Samsung SDI Co., Ltd.

Inventor： Michael Erhart ,  Wolfgang Reinprecht

IPC: H02H7/18 ,  H02H1/00 ,  G01R31/327 ,  G01R31/00 ,  H02H3/08

Abstract: A pyro igniter circuit and a method for testing the same is provided. The pyro igniter circuit includes a supervisory circuit configured to: transmit a test signal having a pulse duration time below an igniter activation pulse time of a pyro igniter disconnect element and/or an ignition control signal, in response to the transmitted test signal, has an amplitude below an igniter activation amplitude of the pyro igniter disconnect element; and receive a diagnostic response signal in response to the transmitted test signal.

公开(公告)号：US11451072B2

公开(公告)日：2022-09-20

申请号：US16367015

申请日：2019-03-27

Applicant: Samsung SDI Co., Ltd.

Inventor： Maximilian Hofer ,  Markus Pretschuh ,  Michael Erhart

IPC: H02J7/00 ,  H01M10/48 ,  G01R31/3842 ,  H01M10/42

Abstract: A control unit for a battery system includes a plurality of battery cells is provided. The control unit includes: an input node configured to receive a sensor signal indicative of a state of at least one of the plurality of battery cells; a microcontroller connected to the input node and configured to generate a first control signal based on the sensor signal; and a switch control circuit configured to control a power switch of the battery system by: receiving the sensor signal, the first control signal, and a fault signal indicative of an operational state of the microcontroller; generating a second control signal based on the sensor signal; and transmitting one of the first control signal and the second control signal to an output node of the control unit based on the received fault signal.

公开(公告)号：US11407311B2

公开(公告)日：2022-08-09

申请号：US16535473

申请日：2019-08-08

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Michael Erhart ,  Thomas Korherr

IPC: B60L1/00 ,  B60L50/60 ,  B60L58/22 ,  H02J7/00

Abstract: A dual power supply system with first to third system terminals is disclosed. The dual power supply system includes a first battery cell stack interconnected between first and second stack nodes and providing a first operation voltage and a second battery cell stack interconnected between the second stack node and a third stack node and providing a second operation voltage. The dual power supply system further includes a DC/DC converter with first to third converter nodes and configured to convert a voltage of the first or second battery cell stack. Each of the system terminals is connected to the respective stack node or converter node in parallel. The DC/DC converter can provide redundant power supply and active balancing. The application further relates to a vehicle including the above dual power supply system.

公开(公告)号：US11030504B2

公开(公告)日：2021-06-08

申请号：US16539882

申请日：2019-08-13

Applicant: Samsung SDI Co., Ltd.

Inventor： Michael Erhart

IPC: G06K19/06 ,  G06K19/07 ,  G06K19/077

Abstract: A battery module includes: a plurality of battery cells; a printed circuit board arranged within a short distance to the battery cells; a passive radio frequency identification tag; and a radio frequency receiver on the printed circuit board. The radio frequency identification tag is attached to at least one of the battery cells and is configured to measure a temperature of the at least one battery cell to which it is attached. The radio frequency identification tag is configured to harvest energy supplied by the radio frequency receiver and to wirelessly send temperature signals corresponding to the temperature of the at least one battery cell within an operating range limited to the short distance. The radio frequency receiver is configured to wirelessly supply energy to the radio frequency identification tag and to receive the temperature signal sent by the radio frequency identification tag.