公开(公告)号：US12125994B2

公开(公告)日：2024-10-22

申请号：US18330315

申请日：2023-06-06

申请人： Koki Holdings Co., Ltd.

发明人： Yasushi Nakano ,  Satoshi Yamaguchi ,  Hiroyuki Hanawa ,  Kazuhiko Funabashi ,  Tomomasa Nishikawa ,  Shota Kanno ,  Toshio Mizoguchi

IPC分类号： H02J7/00 ,  H01M10/44 ,  H01M10/48 ,  H01M50/213 ,  H01M50/244 ,  H01M50/247 ,  H01M50/269 ,  H01M50/569

CPC分类号： H01M10/44 ,  H01M10/48 ,  H01M50/213 ,  H01M50/244 ,  H01M50/247 ,  H01M50/269 ,  H01M50/569 ,  H02J7/0016

摘要： An electrical apparatus includes a battery pack, an electrical apparatus main body and a control unit. The battery pack has a plurality of cell units of which connection states are able to be switched and a plurality of battery side connection terminals. The electrical apparatus main body has a battery pack mounting portion to which the battery pack is mounted, a plurality of device side connection terminals to which the plurality of battery side connection terminals are connectable, and a load device to which power is supplied from the battery pack. The control unit is configured to stop or limit power supply from the battery pack to the load device when a voltage imbalance is generated between the plurality of cell units or a contact failure is generated between the plurality of battery side connection terminals and the plurality of device side terminals.

公开(公告)号：US12107445B2

公开(公告)日：2024-10-01

申请号：US17406329

申请日：2021-08-19

申请人： Yazaki Corporation

发明人： Chihiro Ono ,  Takahiro Syouda

IPC分类号： H02J7/00 ,  G01R31/3828 ,  H02J1/10

CPC分类号： H02J7/0016 ,  G01R31/3828 ,  H02J1/10 ,  H02J7/00304

摘要： A power feeding control device controls a power feeding system including a plurality of battery cells feeding power to a load, a bypass lines which connects or disconnects each of the battery cells and the load, an external power feeding unit which is connected in parallel with the load and feeds power to the load. Before the bypass line starts switching of a connection state between each of the battery cells and the load, supply voltage from the external power feeding unit to the load is increased. Further, after the bypass line switches the connection state between each of the battery cells and the load, the supply voltage from the external power feeding unit to the load is decreased.

公开(公告)号：US12088129B2

公开(公告)日：2024-09-10

申请号：US17286896

申请日：2019-10-17

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Masaaki Kuranuki

IPC分类号： H02J7/00 ,  H01M10/48

CPC分类号： H02J7/0019 ,  H01M10/48 ,  H02J7/0016 ,  H02J7/007182

摘要： Controller transitions from a first state of controlling first wiring side switch and second wiring side switch connected to nodes on both sides of discharge cell to be discharged of n cells to be in on state and clamp switch to be in off state to a second state of controlling first wiring side switch and second wiring side switch connected to the nodes on the both sides of discharge cell to be in off state and clamp switch to be in on state. Controller inserts a dead time between the first state and the second state, the dead time being for controlling first wiring side switch and second wiring side switch connected to the nodes on both sides of discharge cell to be in off state and clamp switch to in off state.

公开(公告)号：US20240266860A1

公开(公告)日：2024-08-08

申请号：US18421135

申请日：2024-01-24

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Yasuhiro Endo ,  Junta Izumi ,  Hironori Miki ,  Kenji Kimura ,  Takayuki Ban ,  Takuya Mizuno ,  Shuji Tomura ,  Naoki Yanagizawa ,  Kazuo Ootsuka ,  Hiroshi Tsukada

IPC分类号： H02J7/00

CPC分类号： H02J7/007186 ,  H02J7/0024 ,  H02J7/0025 ,  H02J7/0016

摘要： The battery string is configured so that a plurality of battery circuit modules can be connected in series. The drive circuit SU5 from the drive circuit SU0 of the battery circuit module transmits a gate signal for ON/OFF of the switch to the downstream drive circuit SU while delaying the gate signal by a predetermined delay time Td. When a particular battery circuit module (drive circuit SU4 in FIG. 4) is passed through, the delay time is switched from the delay time Td to the delay time Tds. The delay time Tds is longer than the delay time Td. As a result, the period of the gate signal, which is the “delay time×the number of battery circuit modules to be operated”, can be suppressed from becoming short (the increase in frequency can be suppressed), and an increase in loss can be suppressed.

公开(公告)号：US20240266847A1

公开(公告)日：2024-08-08

申请号：US18565973

申请日：2021-05-31

申请人： Hitachi Energy Ltd

发明人： Jean-Philippe HASLER ,  Juergen STEINKE ,  Gunnar INGESTRÖM ,  Jan SVENSSON ,  Lexuan MENG ,  Haofeng BAI ,  Tong WU ,  Theodore SOONG

IPC分类号： H02J7/00

CPC分类号： H02J7/00304 ,  H02J7/0016 ,  H02J2207/50

摘要： A module (100) for use in an energy storage system is provided, including a first terminal (110) and a second terminal (112); a supercapacitor branch (120) including an arrangement (122) of one or more supercapacitors (124), and a resistive bypass branch (130) including at least a first bypass switch (132) and a resistance (134) connected in series. The supercapacitor branch and the resistive bypass branch are connected in parallel between the first terminal and the second terminal. The module may further include a direct bypass branch (140) having a second bypass switch (142), the direct bypass branch being also connected in parallel with the supercapacitor branch (120) between the first and second terminals. A control method of such a module and an energy storage system including several such modules, are also provided.

公开(公告)号：US20240243587A1

公开(公告)日：2024-07-18

申请号：US18563819

申请日：2021-05-25

申请人： Hitachi Energy Ltd

发明人： Lexuan MENG ,  Mohsen ASOODAR ,  Tong WU ,  Mikael TENERZ ,  Hongyang ZHANG

IPC分类号： H02J7/00 ,  H02J7/34

CPC分类号： H02J7/0016 ,  H02J7/007182 ,  H02J7/345 ,  H02J2207/50

摘要： A system is disclosed, comprising a plurality of energy storage units and at least one voltage balancing unit. Each voltage balancing unit is associated with at least one of the energy storage units. The at least one voltage balancing unit is connected to the energy storage units and when activated is configured to, on a condition that the voltage of at least one of the energy storage units associated with the at least one voltage balancing unit exceeds a threshold voltage level, reduce the voltage of at least the one(s) of the energy storage units whose voltage exceeds the threshold voltage level so as to become equal to or smaller than the threshold voltage level. The system comprises at least one control and/or processing unit configured to, if the at least one voltage balancing unit is activated and the voltage of at least one of the energy storage unit(s) associated with the at least one voltage balancing unit exceeds the threshold voltage level, monitor an amount of time during which the at least one voltage balancing unit is or has been activated.

公开(公告)号：US20240243373A1

公开(公告)日：2024-07-18

申请号：US18422792

申请日：2024-01-25

申请人： LT350, LLC

发明人： Jeffrey Thramann

IPC分类号： H01M10/46 ,  B60L50/64 ,  B60L53/30 ,  B60L53/51 ,  B60L53/63 ,  B60L53/64 ,  B60L53/65 ,  B60L53/66 ,  B60L53/80 ,  B60L55/00 ,  B60L58/21 ,  B60L58/26 ,  H02J7/00 ,  H02J7/35 ,  H02S40/34 ,  H02S40/38

CPC分类号： H01M10/465 ,  B60L50/64 ,  B60L53/30 ,  B60L53/305 ,  B60L53/51 ,  B60L53/63 ,  B60L53/64 ,  B60L53/65 ,  B60L53/665 ,  B60L53/80 ,  B60L55/00 ,  B60L58/21 ,  B60L58/26 ,  H02J7/00 ,  H02J7/0016 ,  H02J7/35 ,  H02S40/345 ,  H02S40/38 ,  B60L2210/30 ,  B60L2210/40 ,  Y02E60/00 ,  Y02T10/70 ,  Y02T10/7072 ,  Y02T10/72 ,  Y02T90/12 ,  Y02T90/14 ,  Y02T90/16 ,  Y02T90/167 ,  Y04S10/126 ,  Y04S30/14

摘要： An energy storage canopy associated with a local building is provided. The energy storage canopy includes support members that can support compartments, which may be integral with or removable from the energy storage canopy. Each compartment includes a plurality of high capacity batteries to store electrical energy, at least one power conditioner to allow coupling high capacity batteries to an external unit. The external unit may be a power grid, a building, other loads, or the like.

公开(公告)号：US20240222985A1

公开(公告)日：2024-07-04

申请号：US18607704

申请日：2024-03-18

申请人： Shanghai Makesens Energy Storage Technology Co., Ltd.

发明人： Enhai Zhao ,  Xiao Yan

IPC分类号： H02J7/00

CPC分类号： H02J7/0019 ,  H02J7/0016 ,  H02J7/0048 ,  H02J7/005 ,  H02J7/007182 ,  H02J2207/20

摘要： The invention relates to system and method for managing a battery array. The system comprises: a bus; a connecting unit coupled between the battery array and the bus; an active balancing unit for performing constant current charging of each battery unit connected to the bus through a DC-DC converter to achieve active balancing of said battery unit; a passive balancing unit for performing constant current discharging of each battery unit connected to the bus to perform passive balancing of said battery unit; a sensing unit for sensing battery parameters of each battery unit connected to the bus; and a control unit for controlling the connection unit to connect the plurality of battery units to the bus in turn, and the active balancing unit and the passive balancing unit, based on the sensed battery parameters of said battery unit connected to the bus, to perform balancing operations of said battery unit.

公开(公告)号：US12021402B2

公开(公告)日：2024-06-25

申请号：US17402133

申请日：2021-08-13

申请人： Halo Microelectronics International

发明人： Rui Liu

IPC分类号： H02J7/00 ,  H02J7/34 ,  H02M1/00 ,  H02M3/07

CPC分类号： H02J7/0019 ,  H02J7/0016 ,  H02J7/007182 ,  H02J7/345 ,  H02M1/0095 ,  H02M3/073 ,  H02J2207/20 ,  H02J2207/50

摘要： A method includes turning on a first group of switches of a switched capacitor converter in a battery charging system to establish a first conductive path, and configuring a system voltage at a system bus to charge a first flying capacitor to a predetermined voltage level through the first conductive path, wherein the predetermined voltage level is less than the system voltage, and turning on a second group of switches of the switched capacitor converter in the battery charging system to establish a second conductive path to charge a battery, wherein a sum of a voltage across the first flying capacitor and the system voltage is applied to the battery.

公开(公告)号：US20240204538A1

公开(公告)日：2024-06-20

申请号：US18067424

申请日：2022-12-16

申请人： The Aerospace Corporation

发明人： Albert ZIMMERMAN

IPC分类号： H02J7/00 ,  G01R31/367 ,  G01R31/3835 ,  G01R31/396 ,  G06N3/0442 ,  G06N3/045

CPC分类号： H02J7/0016 ,  G01R31/367 ,  G01R31/3835 ,  G01R31/396 ,  G06N3/0442 ,  G06N3/045

摘要： Monitoring self-discharge in operating battery cells (i.e., actively charging or discharging) is disclosed. Cell voltage data over time is used to detect cell-to-cell charge voltage imbalance in a battery while battery cells are at their peak charge voltage. Resistors across each cell are switched on or off according to the average charge voltage imbalance. Actual resistor on-times are used as input to train a neural network in real time. The neural network learns the resistor duty cycle needed by each battery cell to precisely balance its self-discharge losses. If the self-discharge changes, the neural network retrains itself as the new data arrives. The neural network may include a Long Short-Term Memory (LSTM) network for each cell in the battery, which can learn the relative self-discharge rate of the respective cell.