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公开(公告)号：US20240006673A1
公开(公告)日：2024-01-04
申请号：US18039258
申请日：2021-12-14
IPC分类号： H01M10/44 , H01M10/48 , H01M10/42 , G01R31/374
CPC分类号： H01M10/443 , H01M10/486 , H01M10/425 , G01R31/374 , H01M2010/4271
摘要： Disclosed are methods, systems, and devices for charging a battery pack based on a temperature of the battery pack. The temperature of the battery pack is determined and compared with a reference temperature value. In response to determining that the temperature of the battery pack is less than the reference temperature value, heating-optimized pulses, having a first frequency, are applied to the battery pack. The heating-optimized pulses comprise a sequence of alternating positive and negative pulses, and carry a net positive charge. Concurrent to applying the heating-optimized pulses to the battery pack, the temperature of the battery pack is determined. In response to determining that the temperature of the battery pack is more than the reference temperature value, charging current is applied to the battery pack.
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公开(公告)号：US20200185947A1
公开(公告)日：2020-06-11
申请号：US16710635
申请日：2018-06-07
发明人： Oleksandr Tkachenko , Mykola Sherstyuk , Aleksandar Prodic , Timothy McRae , Ivan Radovic , Oleksandr Puzakov
IPC分类号： H02J7/00
摘要： A pulse charging for a battery includes multi-stage voltage conversion. At first stage, an input voltage from a power supply is divided into a plurality of intermediate voltages. At second stage, one or more of the plurality of intermediate voltage are further down converted to generate one or more portions of a charging pulse to be applied to the battery. The down conversion of the input voltage to the output voltage is accompanied by increase in charging current that is applied to the battery. The higher charging current applied to the battery results in fast charging of the battery. Also, the described multi-stage voltage conversion circuitry has high efficiency which alleviates problem of heat dissipation associated with the voltage conversion for charging of the battery.
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公开(公告)号：US20190222037A1
公开(公告)日：2019-07-18
申请号：US16365478
申请日：2019-03-26
IPC分类号： H02J7/00
CPC分类号： H02J7/0021 , H02J7/0016 , H02J7/0073 , H02J7/008 , H02J7/0093 , Y02E70/40
摘要： A battery pack includes an arrangement of battery cells organized in battery groups connected in series, with each group having one or more battery units connected in parallel, and each battery unit comprising one or more series-connected battery cells connected to a battery switch. Charging of the battery pack uses pulse charging. The charging pulses provided to the battery units can be determined based on one or more measured characteristics of battery cells comprising the battery unit so that charging of the battery units can be optimized according to those characteristics. The charging pulses provided to each battery group are timed so that there is an uninterrupted flow of charging current through all the battery groups at all times.
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公开(公告)号：US10291048B2
公开(公告)日：2019-05-14
申请号：US15483324
申请日：2017-04-10
摘要： A battery charging circuit can produce a pulsed charging current to charge a battery. During charging, without disconnecting the pulsed charging current from the battery, EIS measurements can be made. In other words, the pulsed charging current can serve double-duty, for battery charging and as a drive signal for the EIS measurements. The EIS measurements can be used to alter parameters of the pulsed charging current to improve battery life. In some instances, the parameters of the pulsed charging current can be momentarily changed for the purpose of making the EIS measurements, and then restored subsequent to making the measurements to parameters suitable for battery charging.
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公开(公告)号：US20210006086A1
公开(公告)日：2021-01-07
申请号：US17029544
申请日：2020-09-23
IPC分类号： H02J7/00
摘要： Methods, systems, and computer-readable media may charge a battery. A value of at least one battery parameter is determined, and a range of values to which the value of the at least one battery parameter corresponds to is identified. Based on the identified range of values, a set of values for at least one charging parameter is determined, and a battery is charged while a value of the at least one charging parameter is swept among the set of values.
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公开(公告)号：US10250045B2
公开(公告)日：2019-04-02
申请号：US15861610
申请日：2018-01-03
IPC分类号： H02J7/00
摘要： A battery pack includes an arrangement of battery cells organized in battery groups connected in series, with each group having one or more battery units connected in parallel, and each battery unit comprising one or more series-connected battery cells connected to a battery switch. Charging of the battery pack uses pulse charging. The charging pulses provided to the battery units can be determined based on one or more measured characteristics of battery cells comprising the battery unit so that charging of the battery units can be optimized according to those characteristics. The charging pulses provided to each battery group are timed so that there is an uninterrupted flow of charging current through all the battery groups at all times.
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公开(公告)号：US20180013306A1
公开(公告)日：2018-01-11
申请号：US15644498
申请日：2017-07-07
IPC分类号： H02J7/00
CPC分类号： H02J7/0093 , H01M10/44 , H01M10/48 , H02J7/007
摘要： Disclosed is pulse charging of a battery that uses frequency modulation to vary the pulse periods of the charging pulses. Battery measurements can be made to determine the duty cycles of the charging pulses.
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公开(公告)号：US20170302088A1
公开(公告)日：2017-10-19
申请号：US15483324
申请日：2017-04-10
IPC分类号： H02J7/00
CPC分类号： H02J7/007 , H02J7/0045 , H02J7/0047 , H02J7/0093
摘要： A battery charging circuit can produce a pulsed charging current to charge a battery. During charging, without disconnecting the pulsed charging current from the battery, EIS measurements can be made. In other words, the pulsed charging current can serve double-duty, for battery charging and as a drive signal for the EIS measurements. The EIS measurements can be used to alter parameters of the pulsed charging current to improve battery life. In some instances, the parameters of the pulsed charging current can be momentarily changed for the purpose of making the EIS measurements, and then restored subsequent to making the measurements to parameters suitable for battery charging.
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公开(公告)号：US11641122B2
公开(公告)日：2023-05-02
申请号：US16710635
申请日：2018-06-07
发明人： Oleksandr Tkachenko , Mykola Sherstyuk , Aleksandar Prodic , Timothy McRae , Ivan Radovic , Oleksandr Puzakov
摘要： A pulse charging for a battery includes multi-stage voltage conversion. At first stage, an input voltage from a power supply is divided into a plurality of intermediate voltages. At second stage, one or more of the plurality of intermediate voltage are further down converted to generate one or more portions of a charging pulse to be applied to the battery. The down conversion of the input voltage to the output voltage is accompanied by increase in charging current that is applied to the battery. The higher charging current applied to the battery results in fast charging of the battery. Also, the described multi-stage voltage conversion circuitry has high efficiency which alleviates problem of heat dissipation associated with the voltage conversion for charging of the battery.
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公开(公告)号：US10923923B2
公开(公告)日：2021-02-16
申请号：US16365478
申请日：2019-03-26
摘要： A battery pack includes an arrangement of battery cells organized in battery groups connected in series, with each group having one or more battery units connected in parallel, and each battery unit comprising one or more series-connected battery cells connected to a battery switch. Charging of the battery pack uses pulse charging. The charging pulses provided to the battery units can be determined based on one or more measured characteristics of battery cells comprising the battery unit so that charging of the battery units can be optimized according to those characteristics. The charging pulses provided to each battery group are timed so that there is an uninterrupted flow of charging current through all the battery groups at all times.
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