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公开(公告)号：US20230327228A1
公开(公告)日：2023-10-12
申请号：US18077023
申请日：2022-12-07
Applicant: STL Technology Co., Ltd.
Inventor： Cooper Chang
IPC: H01M10/613 , H01M50/24 , H01M10/6563 , H01M10/6567
CPC classification number: H01M10/613 , H01M10/6567 , H01M10/6563 , H01M50/24
Abstract: This disclosure provides a battery system including a shell, a battery module, a fluid channel, and a plurality of tubes. The shell includes a fluid extraction port and a fluid extraction port. The battery module is disposed in the shell, and includes a battery fixed holder for accommodating a plurality of battery cells. The fluid channel is disposed above the battery fixed holder, and communicated with the fluid injection device. Each of the tubes is having an upper opening in the fluid channel, and having a side opening facing the battery cores. The fluid channel is communicated with a space where the battery cells are located via the tubes. A fluid is injected into the fluid channel via the fluid injection port, flows to the space where the battery cells are located via the tubes, and then is exhausted from the fluid extraction port.
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公开(公告)号：US11209491B2
公开(公告)日：2021-12-28
申请号：US16689124
申请日：2019-11-20
Applicant: STL Technology Co., Ltd.
Inventor： Chong-Yong Wu
IPC: G01R31/3842 , G01R31/367 , G01R31/382 , G01R19/165 , G01R31/36
Abstract: The invention provides an estimation method for state of charge (SOC) of battery. A reference SOC is inquired from a look-up table based on a voltage of battery detected. A voltage threshold is subtracted from the voltage of battery to obtain a voltage difference. A current SOC or the reference SOC is divided by the voltage difference to obtain a first slope or a second slope. The first slope is divided by the second slope to obtain an adjustment ratio. An electric charge capacity for charging the battery is counted by a coulomb counting method to obtain a count capacity of discharging that is multiplied by the adjustment ratio to obtain an adjustment value. The adjustment value is subtracted from a previously recorded remaining capacity to obtain a new remaining capacity. The new remaining capacity is divided by a full charge capacity to estimate a new SOC of battery.
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公开(公告)号：US20210143388A1
公开(公告)日：2021-05-13
申请号：US16817592
申请日：2020-03-12
Applicant: STL Technology Co., Ltd.
Inventor： Cooper Chang
IPC: H01M2/34
Abstract: The present invention provides a battery module, including a plurality of battery cells, a plurality of conductive sheets, and at least one plastic protective layer, wherein each conductive sheet is connected in series or in parallel with a plurality of battery cells. The plastic protective layer is formed on the partial surface of the conductive sheet by injection molding to prevent the electrolyte leaked from the defective battery cell from contacting the conductive sheet, causing rise in temperature of the battery cell and causes melt or explosion of the battery cell, which is helpful to improve the safety of the battery module.
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公开(公告)号：US10923943B2
公开(公告)日：2021-02-16
申请号：US15925113
申请日：2018-03-19
Applicant: STL Technology Co., Ltd.
Inventor： Chia-Chang Chen , Tao-Cheng Wu
Abstract: A battery powered device includes a battery pack, at least one switch, a power management chip, and a pre-powered circuit. The pre-powered circuit comprises a buck and current-limiting module. The buck and current-limiting module comprises at least one zener diode and at least one current-limiting resistor. When the switch is turned off, the battery pack will be powered to a system device by the pre-powered circuit. Thus, the battery pack can be powered to the system device by the pre-powered circuit even if the battery powered device is operated in a standby mode. Besides, the power management chip can be operated in the standby state when the battery powered device is powered by the pre-powered circuit, so as to reduce the consumption of the battery energy and therefore extend the powered time of the battery powered device.
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公开(公告)号：US20240241185A1
公开(公告)日：2024-07-18
申请号：US18220617
申请日：2023-07-11
Applicant: STL TECHNOLOGY CO., LTD.
Inventor： Wen-Fan Chang , Chun-Chieh Li , Shih-Fa Hung , Jian-Min Chen
IPC: G01R31/392 , G01R31/389 , H02J7/00
CPC classification number: G01R31/392 , G01R31/389 , H02J7/005 , H02J7/007182
Abstract: This disclosure provides an estimation method applied to a state of health of a battery, which executes a recharging to a battery when a battery voltage is lower than a threshold voltage. During the recharging, a battery state of health estimation procedure is performed from a first depth of discharge detection point to a second depth of discharge detection point. During the battery state of health estimation procedure, a voltage difference between a current battery voltage and an initial open-circuit voltage is accumulated over time from the first depth of discharge detection point to the second depth of discharge detection point to obtain an accumulation of current sampled voltage difference. An accumulation of estimated DC internal resistances can be equivalently obtained by the accumulation of current sampled voltage difference. Afterwards, the state of health of the battery can be determined based on the accumulation of estimated DC internal resistance.
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Patent Agency Ranking
公开(公告)号：US20240053406A1
公开(公告)日：2024-02-15
申请号：US18219997
申请日：2023-07-10
Applicant: STL TECHNOLOGY CO., LTD.
Inventor： Shih Fa Hung , Chong-Yong Wu , Wen-Fan Chang
IPC: G01R31/389 , G01R31/3842 , H02J7/00
CPC classification number: G01R31/389 , G01R31/3842 , H02J7/0047
Abstract: The invention presents a method for estimating a direct current internal resistance of a battery, which defines a depth of discharge detection interval including a first threshold and a second threshold. When the battery is discharging, a currently battery voltage are periodically measured, a currently depth of discharge is calculated, and an open-circuit voltage is queried. The currently battery voltage is subtracted from the open-circuit voltage to obtain a voltage difference. The voltage difference is continuously accumulated to obtain a currently accumulated voltage difference. The currently depth of discharge reaches the first threshold or the second threshold, the currently accumulated voltage difference is a first accumulated voltage difference or a second accumulated voltage difference. A difference value between the first accumulated voltage difference and the second accumulated voltage difference is divided by a discharging amount in the depth of discharge detection interval to obtain the direct current internal resistance.
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公开(公告)号：US20230402676A1
公开(公告)日：2023-12-14
申请号：US18125153
申请日：2023-03-23
Applicant: STL TECHNOLOGY CO., LTD.
Inventor： Cooper Chang
IPC: H01M10/6552 , H01M10/6566 , H01M50/204
CPC classification number: H01M10/6552 , H01M10/6566 , H01M50/204
Abstract: This disclosure provides a battery module having a modified heat pipe structure. The battery module includes a battery fixed holder for accommodating and fixing a plurality of battery cells. The modified heat pipe structure includes a metal pipe, which is defined with a thermal conduction section, a container section, and a connection section thereon. The thermal conduction section is a vacuum-pumped sealed tube, includes a wick structure and a working fluid thereinside, and transfers a heat through a process of evaporation and a condensation of the working fluid. The container section is placed in a gap between the adjacent battery cells, and stores the heat generated by the battery cells in charging or discharging. The connection section is provided with one end connected to the container section, and provided with other end connected to one end of the thermal conduction section by passing through the battery fixed holder vertically.
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公开(公告)号：US20210175643A1
公开(公告)日：2021-06-10
申请号：US16874563
申请日：2020-05-14
Applicant: STL Technology Co., Ltd.
Inventor： Cooper Chang
Abstract: A conductive cell frame for connecting a plurality of battery cells is disclosed. The conductive cell frame includes a first conductive portion and a plurality of second conductive portions, and the upper surface of each second conductive portion is connected to the first conductive portion through a eutectic portion. The lower surface of each second conductive portion is provided with at least one protruding welding portion, wherein the second conductive portion is connected to the housing of the battery cell through the protruding welding portion. The first conductive portion and the second conductive portion are made of different materials, wherein the resistance of the second conductive portion is greater than the resistance of the first conductive portion. Thus, a small current can be used to connect to the conductive cell frame and the battery cell, which not only reduces the consumption of energy, but also avoids damage of the battery cell during the electric welding process
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公开(公告)号：US20210074988A1
公开(公告)日：2021-03-11
申请号：US16817584
申请日：2020-03-12
Applicant: STL Technology Co., Ltd.
Inventor： Chin-Din Hou , Tao-Cheng WU
Abstract: The invention provides a battery module for improving safety, which comprises at least one fixing frame, a plurality of battery cells, a plurality of conductive sheets and a plurality of protection units. The battery cells are arranged on the fixing frame. Each conductive sheet is connected with two battery cells in series, each of the protection units is respectively connected with two conductive sheets, and the battery cells connected with the conductive sheets are connected in parallel via the protection unit. When the temperature of the protection unit is greater than a preset temperature, the protection unit will be blown, thereby preventing the battery cells from charging the defective battery cell, resulting in the defective battery cell to melt or explode.
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公开(公告)号：US20230420958A1
公开(公告)日：2023-12-28
申请号：US18125141
申请日：2023-03-23
Applicant: STL TECHNOLOGY CO., LTD.
Inventor： Wen-Fan Chang , Chun-Chieh Li
IPC: H02J7/00 , H01M50/574 , G06F1/26
CPC classification number: H02J7/0029 , H02J7/00711 , H02J7/0013 , H01M50/574 , G06F1/263
Abstract: This disclosure provides a protection circuit of a battery module. The protection circuit includes a master microcontroller, a slave microcontroller, a charging path switch, a discharging path switch, and a switch controller. When the master microcontroller is operating in a normal state, the master microcontroller periodically sends a pulse signal to the slave microcontroller, and enables the switch controller, and then the switch controller enabled may be used to control the turning on or off of the charge path switch or the discharge path switch. When the master microcontroller is operating in an abnormal state, the slave microcontroller does not receive the pulse signal from the master microcontroller, the slave microcontroller disables the switch controller so that the switch controller disabled will be unable to control the turning on or off of the charge path switch or the discharge path switch.
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