WO2018055702A1 - Power storage device - Google Patents

Power storage device Download PDF

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Publication number
WO2018055702A1
WO2018055702A1 PCT/JP2016/077877 JP2016077877W WO2018055702A1 WO 2018055702 A1 WO2018055702 A1 WO 2018055702A1 JP 2016077877 W JP2016077877 W JP 2016077877W WO 2018055702 A1 WO2018055702 A1 WO 2018055702A1
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WO
WIPO (PCT)
Prior art keywords
secondary battery
circuit board
printed circuit
battery
monitoring unit
Prior art date
Application number
PCT/JP2016/077877
Other languages
French (fr)
Japanese (ja)
Inventor
一寿 宮内
尋史 佐藤
澤田　健
秀幸 杉山
Original Assignee
エリーパワー株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by エリーパワー株式会社 filed Critical エリーパワー株式会社
Priority to PCT/JP2016/077877 priority Critical patent/WO2018055702A1/en
Priority to JP2018540539A priority patent/JP6812019B2/en
Publication of WO2018055702A1 publication Critical patent/WO2018055702A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
    • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
    • H01M50/227—Organic material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to a power storage device.
  • batteries have been used for various applications, and particularly high-capacity secondary batteries have been used for applications such as power sources for electric vehicles and power storage.
  • the voltage of the secondary battery may be lower than the voltage required by the device. In such a case, it is necessary to connect a plurality of secondary batteries in series to increase the supply voltage to a desired voltage.
  • a single battery may not be able to supply a sufficient amount of electricity required by the device. In such a case, it is necessary to connect a plurality of secondary batteries in parallel to increase the amount of supplied electricity to a desired amount.
  • a battery monitoring unit that monitors charging / discharging of a plurality of secondary batteries is known (see, for example, Patent Documents 1 and 2).
  • the BMU usually measures the voltage of each battery and detects overcharge and overdischarge during charging and discharging.
  • the BMU can also have a function of maintaining the voltage balance of each battery.
  • a BMU is usually a printed circuit board on which integrated circuits, resistors, capacitors, and the like are mounted.
  • wiring on a printed circuit board serves as an antenna to generate external electromagnetic noise, and this noise causes malfunction of an integrated circuit (for example, see Patent Document 2).
  • This invention is made
  • the present invention includes a secondary battery, a battery monitoring unit that monitors charge and discharge of the secondary battery, and a housing that houses the secondary battery and the battery monitoring unit, and the housing includes the secondary battery A container for accommodating a battery; and an upper lid disposed on the container, wherein the battery monitoring unit includes a printed circuit board having an upper surface and a lower surface, and a plurality of electronic components mounted on the upper surface and the lower surface of the printed circuit board.
  • the printed circuit board includes an insulator substrate and wiring, and is disposed between the secondary battery and the upper lid, and the plurality of electronic components measure the voltage of the secondary battery.
  • the power storage device of the present invention includes a secondary battery, a battery monitoring unit that monitors charging / discharging of the secondary battery, and a housing that houses the secondary battery and the battery monitoring unit. For this reason, a secondary battery and a battery monitoring part can be electrically connected within a housing
  • the casing includes a container that houses the secondary battery, and an upper lid that is disposed on the container. For this reason, after putting a secondary battery in a container, it becomes possible to block
  • the battery monitoring unit includes a printed circuit board having an upper surface and a lower surface, and a plurality of electronic components mounted on the upper surface and the lower surface of the printed circuit board.
  • the printed board includes an insulator board and wiring.
  • the plurality of electronic components include a measurement integrated circuit provided to measure the voltage of the secondary battery. With this double-sided mounting printed board, it becomes possible to monitor the charge / discharge of the secondary battery based on the measured value of the cell voltage of the secondary battery, and the safety of the power storage device can be improved.
  • the printed circuit board is disposed between the secondary battery and the upper lid. For this reason, after putting a secondary battery in a container, a printed circuit board can be fixed on a secondary battery, and the upper part can be covered with an upper cover.
  • the measurement integrated circuit is mounted on the lower surface of the printed board.
  • the printed circuit board is arranged so that the insulating substrate is positioned between the main upper surface of the upper lid and the measurement integrated circuit. For this reason, the intensity of external electromagnetic waves that reach the peripheral wiring of the measurement integrated circuit through the main upper surface of the upper lid is reduced by the insulator substrate, the electronic components mounted on the upper surface of the printed circuit board, and the wiring on the upper surface of the printed circuit board. External electromagnetic noise generated by the wiring around the measurement integrated circuit serving as an antenna can be weakened.
  • FIG. 3 is a schematic cross-sectional view of the power storage device taken along a broken line AA in FIGS.
  • the power storage device of the present invention includes a secondary battery, a battery monitoring unit that monitors charging / discharging of the secondary battery, and a housing that houses the secondary battery and the battery monitoring unit, A container for accommodating the secondary battery; and an upper lid disposed on the container.
  • the battery monitoring unit includes a printed circuit board having an upper surface and a lower surface, and a plurality of devices mounted on the upper surface and the lower surface of the printed circuit board.
  • the printed circuit board includes an insulator substrate and wiring, and is disposed between the secondary battery and the upper lid, and the plurality of electronic components measure the voltage of the secondary battery.
  • the measurement integrated circuit is mounted on a lower surface of the printed circuit board, and the printed circuit board is disposed between the main upper surface of the upper lid and the measurement integrated circuit. Arranged so that the insulator substrate is located It is characterized in.
  • the plurality of electronic components mounted on the printed board preferably include a microcontroller unit (MCU) mounted on the lower surface of the printed board.
  • MCU microcontroller unit
  • the printed circuit board is disposed so that the insulating substrate is positioned between the main upper surface of the upper lid and the MCU. For this reason, the external electromagnetic noise generated by the wiring around the MCU serving as an antenna can be weakened, and the malfunction of the MCU can be suppressed.
  • the malfunction of the battery monitoring unit can be suppressed, and the safety and life characteristics of the power storage device can be improved.
  • the power storage device of the present invention preferably includes a protective case that houses the battery monitoring unit, and the protective case is preferably disposed between the printed circuit board and the secondary battery. As a result, it is possible to suppress the magnetic field generated by the current flowing through the wiring between the secondary battery and the external connection terminal from causing malfunction of the measurement integrated circuit or the microcontroller unit.
  • FIG. 1 is a schematic perspective view of the power storage device of this embodiment.
  • FIG. 2 is a schematic top view of the inner lid, the protective case, and the battery monitoring unit included in the power storage device of the present embodiment, and is a schematic top view of the power storage device of the present embodiment with the top cover removed.
  • FIG. 3 is a schematic cross-sectional view of the power storage device taken along broken line AA in FIGS.
  • the power storage device 40 of this embodiment includes a secondary battery 2, a battery monitoring unit 3 that monitors charging / discharging of the secondary battery 2, and a housing 1 that houses the secondary battery 2 and the battery monitoring unit 3.
  • the housing 1 includes a container 5 that houses the secondary battery 2 and an upper lid 7 disposed on the container 5, and the battery monitoring unit 3 includes a printed circuit board 12 having an upper surface 28 and a lower surface 29, and the printed circuit board 12.
  • the printed circuit board 12 includes the insulator substrate 13 and the wiring 10, and is disposed between the secondary battery 2 and the upper lid 7.
  • the plurality of electronic components 11 include a measurement integrated circuit 8 provided to measure the voltage of the secondary battery 2, and the measurement integrated circuit 8 is mounted on the lower surface of the printed circuit board 12. Insulator substrate between main upper surface of upper lid 7 and measurement integrated circuit 8 3, characterized in that is arranged to be positioned.
  • the power storage device 40 can include a protective case 4.
  • the power storage device 40 of the present embodiment will be described.
  • the power storage device 40 of the present embodiment is a power storage device used for, for example, an automobile power supply, a motorcycle power supply, a photovoltaic power storage, a backup power supply, and the like.
  • the power storage device 40 may be a sealed power storage device or an in-vehicle power storage device.
  • the power storage device 40 includes at least one secondary battery 2 accommodated in the housing 1.
  • the secondary battery 2 may be a sealed battery housed in the housing 1.
  • the plurality of secondary batteries 2 accommodated in the housing 1 may be connected in parallel or may be connected in series. Further, the plurality of secondary batteries 2 may be electrically connected by wiring, or may be electrically connected by contacting or joining the battery terminals 38 of the two adjacent batteries 2.
  • Secondary battery 2 is, for example, a lithium ion battery, a sodium ion battery, a nickel / hydrogen battery, a nickel / cadmium battery, or the like. Further, the secondary battery 2 may be a square type, a cylindrical type, or a pouch type.
  • the secondary battery 2 includes a positive electrode 21 having a positive electrode active material, a negative electrode 22 having a negative electrode active material, a separator 23 sandwiched between the positive electrode 21 and the negative electrode 22, a nonaqueous electrolyte 24, a positive electrode 21 and a negative electrode. 22, a separator 23, and a battery container 25 that accommodates the nonaqueous electrolyte 24 can be provided. Further, the secondary battery 2 has a battery terminal 38 (plus terminal or minus terminal).
  • Case The power storage device 40 includes a case 1 that houses the secondary battery 2 and the battery monitoring unit 3. Moreover, the housing
  • the housing 1 can accommodate the protective case 4.
  • the material of the housing 1 may be a plastic such as a hard plastic.
  • the housing 1 can include a container 5 that houses at least one secondary battery 2, an inner lid 6 that is disposed on the container 5, and an upper lid 7 that is disposed on the inner lid 6. At least one secondary battery 2 is accommodated in the case 1 having a sealed structure by inserting at least one secondary battery 2 in the container 5 before bonding the members constituting these cases 1. Can do.
  • the inner lid 6 is provided with a wiring 16 that electrically connects the external connection terminal 27 of the power storage device 40 and the secondary battery 2 or a wiring 16 that electrically connects the secondary battery 2 and the battery monitoring unit 3. Can function as a wiring board. Further, the inner lid 6 can have a slit 37 through which the battery terminal 38 of the secondary battery 2 passes, and the battery terminal 38 can be provided so as to pass through the slit 37 and provided on the upper surface of the inner lid 6. It can be joined to the wiring terminal portion 18 on the battery side. Thus, the wiring 16 provided on the inner lid 6 and the secondary battery 2 can be electrically connected.
  • the inner lid 6 can have a protrusion 33 that faces the upper lid 7. By supporting the bottom of the protective case 4 by the protrusion 33, the protective case 4 and the battery monitoring unit 3 can be prevented from bending.
  • casing 1 can be adhere
  • casing 1 can be adhere
  • the two members constituting the housing 1 can be joined by combining the convex portion 36 provided on one member with the concave portion provided on the other member and bonding the convex portion 36 and the concave portion. it can.
  • the housing 1 may include a safety valve. Thereby, even when the gas generated in the secondary battery 2 is released into the housing 1 and the internal pressure of the housing 1 increases, the gas can be released from the safety valve to the outside of the housing 1.
  • the battery monitoring unit 3 is a part that monitors charge / discharge of at least one secondary battery 2.
  • the battery monitoring unit 3 can be electrically connected to the plus terminal and the minus terminal (battery terminal 38) of each battery 2, respectively.
  • the battery monitoring unit 3 can be electrically connected to the battery terminal 38 via the terminal member 14, the BMU side wiring terminal unit 17, the wiring 16, and the battery side wiring terminal unit 18.
  • the battery monitoring unit 3 can measure the voltage of each battery 2.
  • the battery monitoring unit 3 includes a printed circuit board (PCB) 12 having an upper surface 28 and a lower surface 29, and a plurality of electronic components 11 mounted on the upper surface 28 and the lower surface 29 of the printed circuit board 12.
  • the printed board 12 may be a double-sided mounted printed board.
  • the electronic component 11 mounted on the printed circuit board 12 is an integrated circuit (IC), a resistor, a capacitor, a fuse 34, a relay, a balancer, or the like.
  • the electronic component 11 can be fixed to the printed circuit board 12 by surface mounting, through-hole mounting, or the like.
  • the printed circuit board 12 has a wiring 10 on an insulator substrate 13, and an electronic component 11 mounted by the wiring 10 is electrically connected to form an electronic circuit on the insulator substrate 13.
  • the printed circuit board 12 may be a multilayer board in which a plurality of boards are bonded together, or a build-up board in which conductor layers are stacked by interlayer connection.
  • the printed circuit board 12 is disposed between the secondary battery 2 and the upper lid 7. For this reason, after putting the secondary battery 2 in the container 5, the printed circuit board 12 can be fixed on the secondary battery 2, and the upper part can be covered with the upper lid 7. For this reason, it becomes possible to accommodate the secondary battery 2 and the printed circuit board 12 in the housing 1 in a compact manner. Moreover, the wiring distance between the secondary battery 2 and the battery monitoring part 3 can be shortened.
  • the printed circuit board 12 can be arranged such that the upper surface 28 is on the upper lid 7 side and the lower surface 29 is on the secondary battery 2 side. Further, the printed circuit board 12 can be disposed so as to be substantially parallel to the main upper surface of the upper lid 7.
  • the plurality of electronic components 11 mounted on the printed circuit board 12 includes a measurement integrated circuit 8 provided to measure the voltage of the secondary battery 2. Thereby, it becomes possible to monitor charging / discharging of the secondary battery 2 based on the measured value of the voltage of the secondary battery 2, and the safety
  • the measurement integrated circuit 8 can be provided to measure the voltage of the secondary battery 2 and output voltage value data. Further, the measurement integrated circuit 8 can be provided so as to measure the voltage of each secondary battery 2 accommodated in the container 5. Further, the measurement integrated circuit 8 may be an integrated circuit having a function of a microcontroller unit (MCU) 9 described later.
  • the printed circuit board 12 may be mounted with a plurality of measurement integrated circuits 8.
  • the measurement integrated circuit 8 can have first and second input terminals, the first input terminal can be electrically connected to the plus terminal of the secondary battery 2, and the second input terminal is a secondary battery. The two negative terminals can be electrically connected. As a result, the cell voltage of the secondary battery 2 is applied to the measurement integrated circuit 8.
  • a noise filter may be provided between the measurement integrated circuit 8 and the secondary battery 2.
  • the measurement integrated circuit 8 can be provided to measure a voltage between the first and second input terminals and obtain a measured value of the cell voltage (cell voltage value). Further, the measurement integrated circuit 8 can be provided so as to output cell voltage value data from the output terminal. By providing such an integrated circuit for measurement 8, the cell voltage value of the secondary battery 2 can be output as data.
  • the battery monitoring unit 3 can include a microcontroller unit (MCU) 9 mounted on the printed circuit board 12.
  • the MCU 9 can include a CPU core, a memory, and an input / output circuit.
  • the measurement integrated circuit 8, the MCU 9 and the printed circuit board 12 can be provided so that the cell voltage value data output from the measurement integrated circuit 8 can be input to the MCU 9, and each secondary contained in the container 5 can be provided. Data of the cell voltage value of the battery 2 can be input to the MCU 9.
  • the measurement integrated circuit 8 and the MCU 9 are described as separate integrated circuits, these functions may be integrated in one measurement integrated circuit 8.
  • the MCU 9 can be provided to compare the input cell voltage value with the voltage value stored in the memory.
  • MCU9 can memorize
  • the battery monitoring unit 3 can include a fuse 34 or a relay.
  • the fuse 34 or the relay is provided so that the electrical connection between the secondary battery 2 and the external connection terminal 27 can be disconnected.
  • the MCU 9 detects overcharge of the secondary battery 2, the MCU 9 can output a signal for disconnecting the electrical connection between the secondary battery 2 and the external connection terminal 27 to the fuse 34 or the relay.
  • the charging can be interrupted, and the secondary battery 2 can be prevented from generating heat.
  • the battery monitoring unit 3 can have a balancer.
  • the balancer is provided so that the cell voltage of each secondary battery 2 accommodated in the container 5 can be adjusted.
  • the MCU 9 detects an unbalance of the cell voltages of the respective secondary voltages 2, the MCU 9 can output a signal for adjusting the cell voltage to the balancer so that the balance of the cell voltages of the respective secondary voltages 2 is improved.
  • the battery monitoring unit 3 can monitor charging / discharging of the secondary battery 2 accommodated in the container 5.
  • the monitoring integrated circuit 8 and the MCU 9 play a central role in monitoring charge / discharge of the secondary battery 2. Accordingly, when malfunction occurs in the measurement integrated circuit 8 or the MCU 9, the safety, life characteristics, and the like of the power storage device 40 are degraded.
  • radio waves are used as broadcast radio waves and communication radio waves.
  • Various devices and cables emit electromagnetic waves.
  • the wiring pattern of the printed circuit board 12 serves as an antenna to receive these external electromagnetic waves and generate external electromagnetic noise.
  • the battery monitoring unit 3 may malfunction due to the external electromagnetic noise.
  • the external electromagnetic wave refers to an electromagnetic wave generated outside the power storage device 40 and transmitted to the space to reach the power storage device 40.
  • the measurement integrated circuit 8 is mounted on the lower surface of the printed circuit board 12.
  • the printed circuit board 12 is arranged so that the insulator substrate 13 is located between the main upper surface of the upper lid 7 and the measurement integrated circuit 8. For this reason, the peripheral wiring of the measurement integrated circuit 8 passes through the main upper surface of the upper lid 7 by the insulator substrate 13, the electronic component 11 mounted on the upper surface of the printed circuit board 12, and the wiring 10 on the upper surface of the printed circuit board 12.
  • the intensity of the external electromagnetic wave reaching 10 can be reduced, and the external electromagnetic noise generated by the wiring 10 around the measurement integrated circuit 8 as an antenna can be reduced. As a result, malfunction of the measurement integrated circuit 8 can be suppressed.
  • the malfunction of the measurement integrated circuit 8 that plays the central role of the battery monitoring unit 3 By suppressing the malfunction of the measurement integrated circuit 8 that plays the central role of the battery monitoring unit 3, the malfunction of the battery monitoring unit 8 can be suppressed, and the safety and life characteristics of the power storage device 40 can be reduced. Can be improved. Note that another electronic component 11 can be mounted on the upper surface of the printed circuit board 12. Further, all the measurement integrated circuits 8 included in the battery monitoring unit 8 may be mounted on the lower surface 29 of the printed circuit board 12.
  • the printed circuit board 12 can mount the MCU 9 on the lower surface 29.
  • the printed circuit board 12 can be arranged so that the insulator substrate 13 is positioned between the main upper surface of the upper lid 7 and the MCU 9. For this reason, the intensity
  • the protective case 4 is a case that accommodates the battery monitoring unit 3 and is accommodated in the housing 1.
  • the space for storing the battery 2 in the housing 1 and the space for storing the battery monitoring unit 3 can be separated. With this configuration, even when the battery 2 leaks, the leaked electrolyte can be prevented from entering the protective case 4 in which the battery monitoring unit 3 is accommodated, and the battery monitoring unit 3 is damaged. This can be suppressed. For this reason, the safety
  • the material of the protective case 4 is, for example, hard plastic.
  • the protective case 4 can be provided so that the inside becomes a sealed space.
  • the power storage device 40 can include a seal member 19 sandwiched between the protective case 4 and the upper lid 7. With this sealing member 19, the inside of the protective case 4 can be sealed, and the inside of the protective case 4 can be used as a sealed space.
  • the protective case 4 can be disposed between the printed circuit board 12 and the secondary battery 2. As a result, the protective case 4 can be disposed between the wiring connecting the secondary battery 2 and the external connection terminal 27 and the measurement integrated circuit 8 or the MCU 9, and a current flows through the wiring. It is possible to suppress the magnetic field from affecting the printed circuit board 12. For this reason, it can suppress that the magnetic field which arises when an electric current flows into the said wiring causes malfunction of the integrated circuit 8 for measurement, or MCU9.
  • a power storage device A including an electronic circuit board having the experimental measurement integrated circuit 8 mounted on the lower surface of the printed board and a power storage device B including the electronic circuit board having the measurement integrated circuit 8 mounted on the upper surface of the printed board are manufactured. did. Other structures were manufactured in the same manner as the power storage device shown in FIGS.
  • a test was conducted to simulate the occurrence of external electromagnetic noise from radio waves from mobile phones. Specifically, radio waves of 800 MHz band (710-960 MHz) and 2 GHz band (1920-2200 MHz) were made to reach power storage devices A and B from the upper side, and it was examined whether or not battery monitoring unit 3 would malfunction. As a result, in power storage device A, malfunction of the battery monitoring unit could be suppressed, but in power storage device B, the battery monitoring unit malfunctioned. From this result, it was found that the malfunction of the battery monitoring unit can be suppressed by mounting the measurement integrated circuit 8 on the lower surface of the printed circuit board.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The present invention provides a power storage device capable of suppressing malfunction of an integrated circuit due to external electromagnetic noise. This power storage device is characterized by: being provided with a secondary battery, a battery monitoring unit for monitoring charge and discharge of the secondary battery, and a housing for housing the secondary battery and the battery monitoring unit; the housing being provided with a container for housing the secondary battery, and a top cover disposed on the container; the battery monitoring unit being provided with a printed circuit board having an upper surface and a lower surface, and a plurality of electronic components mounted on the upper surface and the lower surface of the printed circuit board; the printed circuit board including an insulator substrate and wiring, and being disposed between the secondary battery and the top cover; the plurality of electronic components including a measuring integrated circuit provided so as to measure the voltage of the secondary battery; the measuring integrated circuit being mounted on a lower surface of the printed circuit board; and the printed circuit board being disposed such that the insulator substrate is located between a main upper surface of the top cover and the measuring integrated circuit.

Description

蓄電装置Power storage device
　本発明は、蓄電装置に関する。 The present invention relates to a power storage device.
　近年、電池は、様々な用途に用いられ、特に大容量の二次電池は、電気自動車用電源や電力貯蔵などの用途に用いられている。
　二次電池を単電池で使用すると、機器が必要とする電圧よりも二次電池の電圧が低い場合がある。このような場合、複数の二次電池を直列に接続し供給電圧を所望の電圧まで高くする必要がある。また、単電池では機器が必要とする電気量を十分に供給できない場合がある。このような場合、複数の二次電池を並列に接続し供給電気量を所望の量まで大きくする必要がある。 In recent years, batteries have been used for various applications, and particularly high-capacity secondary batteries have been used for applications such as power sources for electric vehicles and power storage.
When the secondary battery is used as a single battery, the voltage of the secondary battery may be lower than the voltage required by the device. In such a case, it is necessary to connect a plurality of secondary batteries in series to increase the supply voltage to a desired voltage. In addition, a single battery may not be able to supply a sufficient amount of electricity required by the device. In such a case, it is necessary to connect a plurality of secondary batteries in parallel to increase the amount of supplied electricity to a desired amount.
　このため、直列又は並列に接続した複数の二次電池を筐体に収容した蓄電装置から機器に電力を供給している。また、複数の二次電池の充放電を監視する電池監視ユニット（BMU）が知られている（例えば、特許文献１、２参照）。BMUは、通常、各電池の電圧などを測定し、充・放電時の過充電、過放電を検出する。また、BMUは、各電池の電圧バランスを維持する機能も有することができる。通常、BMUは、集積回路、抵抗器、キャパシタなどを実装したプリント基板である。
　また、プリント基板の配線がアンテナとなり外来電磁波ノイズが生じ、このノイズが集積回路の誤作動を生じさせることが知られている（例えば、特許文献２参照）。 For this reason, electric power is supplied to the device from a power storage device that houses a plurality of secondary batteries connected in series or in parallel in a casing. In addition, a battery monitoring unit (BMU) that monitors charging / discharging of a plurality of secondary batteries is known (see, for example, Patent Documents 1 and 2). The BMU usually measures the voltage of each battery and detects overcharge and overdischarge during charging and discharging. The BMU can also have a function of maintaining the voltage balance of each battery. A BMU is usually a printed circuit board on which integrated circuits, resistors, capacitors, and the like are mounted.
In addition, it is known that wiring on a printed circuit board serves as an antenna to generate external electromagnetic noise, and this noise causes malfunction of an integrated circuit (for example, see Patent Document 2).
特開２０１５－８１２１号公報Japanese Patent Laying-Open No. 2015-8121 特開２０１３－１５３５９６号公報JP 2013-153596 A
　外来電磁波ノイズにより集積回路の誤作動が生じると、電池監視部により二次電池の充放電を正常に監視することができず、蓄電装置の安全性の低下、寿命特性の低下などを引き起こすおそれがある。
　本発明は、このような事情に鑑みてなされたものであり、外来電磁波ノイズによる集積回路の誤作動を抑制できる蓄電装置を提供する。 If the integrated circuit malfunctions due to external electromagnetic noise, the battery monitoring unit cannot properly monitor the charge / discharge of the secondary battery, which may lead to a decrease in the safety of the power storage device and a decrease in life characteristics. is there.
This invention is made | formed in view of such a situation, and provides the electrical storage apparatus which can suppress the malfunctioning of the integrated circuit by external electromagnetic noise.
　本発明は、二次電池と、前記二次電池の充放電を監視する電池監視部と、前記二次電池及び前記電池監視部を収容する筐体とを備え、前記筐体は、前記二次電池を収容する容器と、前記容器上に配置された上蓋とを備え、前記電池監視部は、上面及び下面を有するプリント基板と、前記プリント基板の上面及び下面に実装された複数の電子部品とを備え、前記プリント基板は、絶縁体基板と配線とを含み、かつ、前記二次電池と前記上蓋との間に配置され、複数の電子部品は、前記二次電池の電圧を測定するように設けられた測定用集積回路を含み、前記測定用集積回路は、前記プリント基板の下面に実装され、前記プリント基板は、前記上蓋の主要上面と前記測定用集積回路との間に前記絶縁体基板が位置するように配置されたことを特徴とする蓄電装置を提供する。 The present invention includes a secondary battery, a battery monitoring unit that monitors charge and discharge of the secondary battery, and a housing that houses the secondary battery and the battery monitoring unit, and the housing includes the secondary battery A container for accommodating a battery; and an upper lid disposed on the container, wherein the battery monitoring unit includes a printed circuit board having an upper surface and a lower surface, and a plurality of electronic components mounted on the upper surface and the lower surface of the printed circuit board. The printed circuit board includes an insulator substrate and wiring, and is disposed between the secondary battery and the upper lid, and the plurality of electronic components measure the voltage of the secondary battery. An integrated circuit for measurement provided, and the integrated circuit for measurement is mounted on a lower surface of the printed circuit board, and the printed circuit board is disposed between the main upper surface of the upper lid and the integrated circuit for measurement. Is placed so that To provide a power storage device to be.
　本発明の蓄電装置は、二次電池と、二次電池の充放電を監視する電池監視部と、二次電池及び電池監視部を収容する筐体とを備える。このため、二次電池と電池監視部とを筐体内で電気的に接続することができ、蓄電装置を小型化することや部品数を低減することができる。
　前記筐体は、二次電池を収容する容器と、容器上に配置された上蓋とを備える。このため、容器内に二次電池を入れた後、容器の電池挿入用開口を上蓋で塞ぐことが可能になり、筐体内に二次電池を収容することが可能になる。 The power storage device of the present invention includes a secondary battery, a battery monitoring unit that monitors charging / discharging of the secondary battery, and a housing that houses the secondary battery and the battery monitoring unit. For this reason, a secondary battery and a battery monitoring part can be electrically connected within a housing | casing, and a power storage device can be reduced in size and the number of parts can be reduced.
The casing includes a container that houses the secondary battery, and an upper lid that is disposed on the container. For this reason, after putting a secondary battery in a container, it becomes possible to block | close the battery insertion opening of a container with an upper cover, and it becomes possible to accommodate a secondary battery in a housing | casing.
　前記電池監視部は、上面及び下面を有するプリント基板と、プリント基板の上面及び下面に実装された複数の電子部品とを備える。また、プリント基板は、絶縁体基板と配線とを含む。さらに、複数の電子部品は、二次電池の電圧を測定するように設けられた測定用集積回路を含む。この両面実装プリント基板により、二次電池のセル電圧の測定値に基づき二次電池の充放電を監視することが可能になり、蓄電装置の安全性を向上させることができる。
　前記プリント基板は、二次電池と上蓋との間に配置される。このため、容器に二次電池を入れた後、二次電池の上にプリント基板を固設し、その上部を上蓋で覆うことができる。このため、二次電池及びプリント基板を筐体中にコンパクトに収容することが可能になる。また、二次電池と電池監視部との間の配線距離を短くすることができる。
　前記測定用集積回路は、プリント基板の下面に実装される。また、プリント基板は、上蓋の主要上面と測定用集積回路との間に絶縁体基板が位置するように配置される。このため、絶縁体基板、プリント基板の上面に実装された電子部品、及びプリント基板の上面の配線により、上蓋の主要上面を通過して測定用集積回路の周辺の配線に達する外来電磁波の強度を弱めることができ、測定用集積回路の周辺の配線がアンテナとなり生じる外来電磁波ノイズを弱めることができる。この結果、測定用集積回路の誤作動を抑制することができる。電池監視部の中心的な役割を果たしている測定用集積回路の誤作動を抑制することにより、電池監視部の誤作動を抑制することができ、蓄電装置の安全性及び寿命特性を向上させることができる。 The battery monitoring unit includes a printed circuit board having an upper surface and a lower surface, and a plurality of electronic components mounted on the upper surface and the lower surface of the printed circuit board. The printed board includes an insulator board and wiring. Further, the plurality of electronic components include a measurement integrated circuit provided to measure the voltage of the secondary battery. With this double-sided mounting printed board, it becomes possible to monitor the charge / discharge of the secondary battery based on the measured value of the cell voltage of the secondary battery, and the safety of the power storage device can be improved.
The printed circuit board is disposed between the secondary battery and the upper lid. For this reason, after putting a secondary battery in a container, a printed circuit board can be fixed on a secondary battery, and the upper part can be covered with an upper cover. For this reason, it becomes possible to accommodate a secondary battery and a printed circuit board compactly in a housing | casing. Moreover, the wiring distance between a secondary battery and a battery monitoring part can be shortened.
The measurement integrated circuit is mounted on the lower surface of the printed board. The printed circuit board is arranged so that the insulating substrate is positioned between the main upper surface of the upper lid and the measurement integrated circuit. For this reason, the intensity of external electromagnetic waves that reach the peripheral wiring of the measurement integrated circuit through the main upper surface of the upper lid is reduced by the insulator substrate, the electronic components mounted on the upper surface of the printed circuit board, and the wiring on the upper surface of the printed circuit board. External electromagnetic noise generated by the wiring around the measurement integrated circuit serving as an antenna can be weakened. As a result, malfunction of the measurement integrated circuit can be suppressed. By suppressing the malfunction of the integrated circuit for measurement that plays the central role of the battery monitoring unit, the malfunction of the battery monitoring unit can be suppressed, and the safety and life characteristics of the power storage device can be improved. it can.
本発明の一実施形態の蓄電装置の概略斜視図である。It is a schematic perspective view of the electrical storage apparatus of one Embodiment of this invention. 本発明の一実施形態の蓄電装置に含まれる中蓋、保護ケース及び電池監視部の概略上面図である。It is a schematic top view of the inner lid, the protective case, and the battery monitoring unit included in the power storage device of one embodiment of the present invention. 図１、２の破線Ａ－Ａにおける蓄電装置の概略断面図である。FIG. 3 is a schematic cross-sectional view of the power storage device taken along a broken line AA in FIGS.
　本発明の蓄電装置は、二次電池と、前記二次電池の充放電を監視する電池監視部と、前記二次電池及び前記電池監視部を収容する筐体とを備え、前記筐体は、前記二次電池を収容する容器と、前記容器上に配置された上蓋とを備え、前記電池監視部は、上面及び下面を有するプリント基板と、前記プリント基板の上面及び下面に実装された複数の電子部品とを備え、前記プリント基板は、絶縁体基板と配線とを含み、かつ、前記二次電池と前記上蓋との間に配置され、複数の電子部品は、前記二次電池の電圧を測定するように設けられた測定用集積回路を含み、前記測定用集積回路は、前記プリント基板の下面に実装され、前記プリント基板は、前記上蓋の主要上面と前記測定用集積回路との間に前記絶縁体基板が位置するように配置されたことを特徴とする。 The power storage device of the present invention includes a secondary battery, a battery monitoring unit that monitors charging / discharging of the secondary battery, and a housing that houses the secondary battery and the battery monitoring unit, A container for accommodating the secondary battery; and an upper lid disposed on the container. The battery monitoring unit includes a printed circuit board having an upper surface and a lower surface, and a plurality of devices mounted on the upper surface and the lower surface of the printed circuit board. The printed circuit board includes an insulator substrate and wiring, and is disposed between the secondary battery and the upper lid, and the plurality of electronic components measure the voltage of the secondary battery. The measurement integrated circuit is mounted on a lower surface of the printed circuit board, and the printed circuit board is disposed between the main upper surface of the upper lid and the measurement integrated circuit. Arranged so that the insulator substrate is located It is characterized in.
　前記プリント基板に実装された複数の電子部品には、プリント基板の下面に実装されたマイクロコントローラユニット（ＭＣＵ）が含まれることが好ましい。また、プリント基板は、上蓋の主要上面とＭＣＵとの間に絶縁体基板が位置するように配置されたことが好ましい。このため、ＭＣＵの周辺の配線がアンテナとなり生じる外来電磁波ノイズを弱めることができ、ＭＣＵの誤作動を抑制することができる。電池監視部の中心的な役割を果たしているＭＣＵの誤作動を抑制することにより、電池監視部の誤作動を抑制することができ、蓄電装置の安全性及び寿命特性を向上させることができる。
　本発明の蓄電装置は電池監視部を収容する保護ケースを備えることが好ましく、保護ケースはプリント基板と二次電池との間に配置されたことが好ましい。このことにより、二次電池と外部接続端子との間の配線に電流が流れることにより生じる磁界が測定用集積回路又はマイクロコントローラユニットの誤作動を引き起こすことを抑制することができる。 The plurality of electronic components mounted on the printed board preferably include a microcontroller unit (MCU) mounted on the lower surface of the printed board. Moreover, it is preferable that the printed circuit board is disposed so that the insulating substrate is positioned between the main upper surface of the upper lid and the MCU. For this reason, the external electromagnetic noise generated by the wiring around the MCU serving as an antenna can be weakened, and the malfunction of the MCU can be suppressed. By suppressing the malfunction of the MCU that plays the central role of the battery monitoring unit, the malfunction of the battery monitoring unit can be suppressed, and the safety and life characteristics of the power storage device can be improved.
The power storage device of the present invention preferably includes a protective case that houses the battery monitoring unit, and the protective case is preferably disposed between the printed circuit board and the secondary battery. As a result, it is possible to suppress the magnetic field generated by the current flowing through the wiring between the secondary battery and the external connection terminal from causing malfunction of the measurement integrated circuit or the microcontroller unit.
　以下、図面を用いて本発明の一実施形態を説明する。図面や以下の記述中で示す構成は、例示であって、本発明の範囲は、図面や以下の記述中で示すものに限定されない。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The configurations shown in the drawings and the following description are merely examples, and the scope of the present invention is not limited to those shown in the drawings and the following description.
　図１は本実施形態の蓄電装置の概略斜視図である。図２は、本実施形態の蓄電装置に含まれる中蓋、保護ケース及び電池監視部の概略上面図であり、上蓋を取り外した状態の本実施形態の蓄電装置の概略上面図である。図３は、図１、２の破線Ａ－Ａにおける蓄電装置の概略断面図である。 FIG. 1 is a schematic perspective view of the power storage device of this embodiment. FIG. 2 is a schematic top view of the inner lid, the protective case, and the battery monitoring unit included in the power storage device of the present embodiment, and is a schematic top view of the power storage device of the present embodiment with the top cover removed. FIG. 3 is a schematic cross-sectional view of the power storage device taken along broken line AA in FIGS.
　本実施形態の蓄電装置４０は、二次電池２と、二次電池２の充放電を監視する電池監視部３と、二次電池２及び電池監視部３を収容する筐体１とを備え、筐体１は、二次電池２を収容する容器５と、容器５上に配置された上蓋７とを備え、電池監視部３は、上面２８及び下面２９を有するプリント基板１２と、プリント基板１２の上面２８及び下面２９に実装された複数の電子部品１１とを備え、プリント基板１２は、絶縁体基板１３と配線１０とを含み、かつ、二次電池２と上蓋７との間に配置され、複数の電子部品１１は、二次電池２の電圧を測定するように設けられた測定用集積回路８を含み、測定用集積回路８は、プリント基板１２の下面に実装され、プリント基板１２は、上蓋７の主要上面と測定用集積回路８との間に絶縁体基板１３が位置するように配置されたことを特徴とする。また、蓄電装置４０は、保護ケース４を備えることができる。
　以下、本実施形態の蓄電装置４０について説明する。 The power storage device 40 of this embodiment includes a secondary battery 2, a battery monitoring unit 3 that monitors charging / discharging of the secondary battery 2, and a housing 1 that houses the secondary battery 2 and the battery monitoring unit 3. The housing 1 includes a container 5 that houses the secondary battery 2 and an upper lid 7 disposed on the container 5, and the battery monitoring unit 3 includes a printed circuit board 12 having an upper surface 28 and a lower surface 29, and the printed circuit board 12. The printed circuit board 12 includes the insulator substrate 13 and the wiring 10, and is disposed between the secondary battery 2 and the upper lid 7. The plurality of electronic components 11 include a measurement integrated circuit 8 provided to measure the voltage of the secondary battery 2, and the measurement integrated circuit 8 is mounted on the lower surface of the printed circuit board 12. Insulator substrate between main upper surface of upper lid 7 and measurement integrated circuit 8 3, characterized in that is arranged to be positioned. Further, the power storage device 40 can include a protective case 4.
Hereinafter, the power storage device 40 of the present embodiment will be described.
１．蓄電装置
　本実施形態の蓄電装置４０は、例えば、自動車の電源、自動二輪車の電源、太陽光発電の蓄電、バックアップ電源などに用いられる蓄電装置である。また、蓄電装置４０は、密閉型蓄電装置又は車載用蓄電装置であってもよい。 1. Power Storage Device The power storage device 40 of the present embodiment is a power storage device used for, for example, an automobile power supply, a motorcycle power supply, a photovoltaic power storage, a backup power supply, and the like. The power storage device 40 may be a sealed power storage device or an in-vehicle power storage device.
２．二次電池
　蓄電装置４０は、筐体１に収容された少なくとも１つの二次電池２を備える。二次電池２は、筐体１中に収容された密閉型電池であってもよい。筐体１に収容された複数の二次電池２は、並列接続されていてもよく、直列接続されていてもよい。また、複数の二次電池２は、配線により電気的に接続されてもよく、隣接する２つの電池２の電池端子３８を接触又は接合させることにより電気的に接続されてもよい。 2. Secondary Battery The power storage device 40 includes at least one secondary battery 2 accommodated in the housing 1. The secondary battery 2 may be a sealed battery housed in the housing 1. The plurality of secondary batteries 2 accommodated in the housing 1 may be connected in parallel or may be connected in series. Further, the plurality of secondary batteries 2 may be electrically connected by wiring, or may be electrically connected by contacting or joining the battery terminals 38 of the two adjacent batteries 2.
　二次電池２は、例えば、リチウムイオン電池、ナトリウムイオン電池、ニッケル・水素電池、ニッケル・カドミウム電池等である。また、二次電池２は、角型であってもよく、円筒型であってもよく、パウチ型であってもよい。また、二次電池２は、正極活物質を有する正極２１と、負極活物質を有する負極２２と、正極２１と負極２２とに挟まれたセパレータ２３と、非水電解質２４と、正極２１と負極２２とセパレータ２３と非水電解質２４とを収容する電池容器２５とを備えることができる。また、二次電池２は電池端子３８（プラス端子又はマイナス端子）を有する。 Secondary battery 2 is, for example, a lithium ion battery, a sodium ion battery, a nickel / hydrogen battery, a nickel / cadmium battery, or the like. Further, the secondary battery 2 may be a square type, a cylindrical type, or a pouch type. The secondary battery 2 includes a positive electrode 21 having a positive electrode active material, a negative electrode 22 having a negative electrode active material, a separator 23 sandwiched between the positive electrode 21 and the negative electrode 22, a nonaqueous electrolyte 24, a positive electrode 21 and a negative electrode. 22, a separator 23, and a battery container 25 that accommodates the nonaqueous electrolyte 24 can be provided. Further, the secondary battery 2 has a battery terminal 38 (plus terminal or minus terminal).
３．筐体
　蓄電装置４０は、二次電池２、電池監視部３を収容する筐体１を備える。また、筐体１は密閉構造を有することができる。また、筐体１は、保護ケース４を収容することができる。また、筐体１の材料は、硬質プラスチックなどのプラスチックであってもよい。
　筐体１は、少なくとも１つの二次電池２を収容する容器５と、容器５上に配置された中蓋６と、中蓋６上に配置された上蓋７とを備えることができる。これらの筐体１を構成する部材を接着する前に容器５中に少なくとも１つの二次電池２を入れることにより、密閉構造を有する筐体１中に少なくとも１つの二次電池２を収容することができる。 3. Case The power storage device 40 includes a case 1 that houses the secondary battery 2 and the battery monitoring unit 3. Moreover, the housing | casing 1 can have a sealing structure. The housing 1 can accommodate the protective case 4. The material of the housing 1 may be a plastic such as a hard plastic.
The housing 1 can include a container 5 that houses at least one secondary battery 2, an inner lid 6 that is disposed on the container 5, and an upper lid 7 that is disposed on the inner lid 6. At least one secondary battery 2 is accommodated in the case 1 having a sealed structure by inserting at least one secondary battery 2 in the container 5 before bonding the members constituting these cases 1. Can do.
　中蓋６は、蓄電装置４０の外部接続端子２７と二次電池２とを電気的に接続する配線１６又は二次電池２と電池監視部３とを電気的に接続する配線１６が設けられた配線盤として機能することができる。
　また、中蓋６は、二次電池２の電池端子３８が貫通するスリット３７を有することができ、電池端子３８は、スリット３７を通るように設けることができ、中蓋６の上面に設けられた電池側の配線端子部１８と接合することができる。このことにより、中蓋６に設けられた配線１６と二次電池２とを電気的に接続することができる。
　中蓋６は、上蓋７に向かう突起部３３を有することができる。突起部３３により保護ケース４の底部を支えることにより、保護ケース４及び電池監視部３が撓むことを抑制することができる。 The inner lid 6 is provided with a wiring 16 that electrically connects the external connection terminal 27 of the power storage device 40 and the secondary battery 2 or a wiring 16 that electrically connects the secondary battery 2 and the battery monitoring unit 3. Can function as a wiring board.
Further, the inner lid 6 can have a slit 37 through which the battery terminal 38 of the secondary battery 2 passes, and the battery terminal 38 can be provided so as to pass through the slit 37 and provided on the upper surface of the inner lid 6. It can be joined to the wiring terminal portion 18 on the battery side. Thus, the wiring 16 provided on the inner lid 6 and the secondary battery 2 can be electrically connected.
The inner lid 6 can have a protrusion 33 that faces the upper lid 7. By supporting the bottom of the protective case 4 by the protrusion 33, the protective case 4 and the battery monitoring unit 3 can be prevented from bending.
　筐体１を構成する各部材は、筐体１の内部が密閉空間となるように接着することができる。このことにより、筐体１内に水などが浸入することを防止することができ、蓄電装置４０の安全性及び寿命特性を向上させることができる。筐体１を構成する各部材は、例えば、接着剤により接着することができる。なお、筐体１を構成する２つの部材は、一方の部材に設けられた凸部３６を他方の部材に設けられた凹部に組み合わせ、凸部３６と凹部とを接着することにより接合することができる。
　筐体１は、安全弁を備えてもよい。このことにより、二次電池２において発生したガスが筐体１内に放出され筐体１の内部圧力が上昇した場合でも、安全弁からガスを筐体１の外部に放出することができる。 Each member which comprises the housing | casing 1 can be adhere | attached so that the inside of the housing | casing 1 may become sealed space. As a result, water or the like can be prevented from entering the housing 1 and the safety and life characteristics of the power storage device 40 can be improved. Each member which comprises the housing | casing 1 can be adhere | attached with an adhesive agent, for example. The two members constituting the housing 1 can be joined by combining the convex portion 36 provided on one member with the concave portion provided on the other member and bonding the convex portion 36 and the concave portion. it can.
The housing 1 may include a safety valve. Thereby, even when the gas generated in the secondary battery 2 is released into the housing 1 and the internal pressure of the housing 1 increases, the gas can be released from the safety valve to the outside of the housing 1.
４．電池監視部
　電池監視部３は、少なくとも１つの二次電池２の充放電を監視する部分である。電池監視部３は、各電池２のプラス端子及びマイナス端子（電池端子３８）とそれぞれ電気的に接続することができる。例えば、電池監視部３は、端子部材１４、ＢＭＵ側配線端子部１７、配線１６、電池側配線端子部１８を介して電池端子３８と電気的に接続することができる。このことにより、電池監視部３により各電池２の電圧を測定することが可能になる。 4). Battery Monitoring Unit The battery monitoring unit 3 is a part that monitors charge / discharge of at least one secondary battery 2. The battery monitoring unit 3 can be electrically connected to the plus terminal and the minus terminal (battery terminal 38) of each battery 2, respectively. For example, the battery monitoring unit 3 can be electrically connected to the battery terminal 38 via the terminal member 14, the BMU side wiring terminal unit 17, the wiring 16, and the battery side wiring terminal unit 18. Thus, the battery monitoring unit 3 can measure the voltage of each battery 2.
　電池監視部３は、上面２８及び下面２９を有するプリント基板（ＰＣＢ）１２と、プリント基板１２の上面２８及び下面２９に実装された複数の電子部品１１とを備える。プリント基板１２は、両面実装プリント基板であってもよい。プリント基板１２に実装される電子部品１１は、集積回路（ＩＣ）、抵抗器、キャパシタ、ヒューズ３４、リレー、バランサーなどである。電子部品１１は、表面実装、スルーホール実装などによりプリント基板１２に固定することができる。また、プリント基板１２は、絶縁体基板１３上に配線１０を有しており、この配線１０により実装された電子部品１１を電気的に接続し絶縁体基板１３上に電子回路を形成する。また、プリント基板１２は、複数の基板を張り合わせた多層基板、又は層間接続をして導体層を積み上げたビルドアップ基板であってもよい。 The battery monitoring unit 3 includes a printed circuit board (PCB) 12 having an upper surface 28 and a lower surface 29, and a plurality of electronic components 11 mounted on the upper surface 28 and the lower surface 29 of the printed circuit board 12. The printed board 12 may be a double-sided mounted printed board. The electronic component 11 mounted on the printed circuit board 12 is an integrated circuit (IC), a resistor, a capacitor, a fuse 34, a relay, a balancer, or the like. The electronic component 11 can be fixed to the printed circuit board 12 by surface mounting, through-hole mounting, or the like. The printed circuit board 12 has a wiring 10 on an insulator substrate 13, and an electronic component 11 mounted by the wiring 10 is electrically connected to form an electronic circuit on the insulator substrate 13. Further, the printed circuit board 12 may be a multilayer board in which a plurality of boards are bonded together, or a build-up board in which conductor layers are stacked by interlayer connection.
　プリント基板１２は、二次電池２と上蓋７との間に配置される。このため、容器５中に二次電池２を入れた後、二次電池２の上にプリント基板１２を固設し、その上部を上蓋７で覆うことができる。このため、二次電池２及びプリント基板１２を筐体１中にコンパクトに収容することが可能になる。また、二次電池２と電池監視部３との間の配線距離を短くすることができる。また、プリント基板１２は、上面２８が上蓋７側となり下面２９が二次電池２側となるように配置することができる。また、プリント基板１２は、上蓋７の主要上面と実質的に平行になるように配置することができる。 The printed circuit board 12 is disposed between the secondary battery 2 and the upper lid 7. For this reason, after putting the secondary battery 2 in the container 5, the printed circuit board 12 can be fixed on the secondary battery 2, and the upper part can be covered with the upper lid 7. For this reason, it becomes possible to accommodate the secondary battery 2 and the printed circuit board 12 in the housing 1 in a compact manner. Moreover, the wiring distance between the secondary battery 2 and the battery monitoring part 3 can be shortened. The printed circuit board 12 can be arranged such that the upper surface 28 is on the upper lid 7 side and the lower surface 29 is on the secondary battery 2 side. Further, the printed circuit board 12 can be disposed so as to be substantially parallel to the main upper surface of the upper lid 7.
　プリント基板１２に実装される複数の電子部品１１は、二次電池２の電圧を測定するように設けられた測定用集積回路８を含む。このことにより、二次電池２の電圧の測定値に基づき二次電池２の充放電を監視することが可能になり、蓄電装置４０の安全性を向上させることができる。測定用集積回路８は、二次電池２の電圧を測定し電圧値のデータを出力するように設けることができる。また、測定用集積回路８は、容器５に収容された各二次電池２の電圧を測定するように設けることができる。また、測定用集積回路８は、後述するマイクロコントローラユニット（ＭＣＵ）９の機能を有する集積回路であってもよい。また、プリント基板１２は、複数の測定用集積回路８が実装されてもよい。 The plurality of electronic components 11 mounted on the printed circuit board 12 includes a measurement integrated circuit 8 provided to measure the voltage of the secondary battery 2. Thereby, it becomes possible to monitor charging / discharging of the secondary battery 2 based on the measured value of the voltage of the secondary battery 2, and the safety | security of the electrical storage apparatus 40 can be improved. The measurement integrated circuit 8 can be provided to measure the voltage of the secondary battery 2 and output voltage value data. Further, the measurement integrated circuit 8 can be provided so as to measure the voltage of each secondary battery 2 accommodated in the container 5. Further, the measurement integrated circuit 8 may be an integrated circuit having a function of a microcontroller unit (MCU) 9 described later. The printed circuit board 12 may be mounted with a plurality of measurement integrated circuits 8.
　測定用集積回路８は、第１及び第２入力端子を有することができ、第１入力端子が二次電池２のプラス端子と電気的に接続することができ、第２入力端子が二次電池２のマイナス端子と電気的に接続することができる。このことにより、この二次電池２のセル電圧が測定用集積回路８に印加される。なお、測定用集積回路８と二次電池２との間にノイズフィルタを設けてもよい。
　測定用集積回路８は、第１及び第２入力端子間の電圧を測定し、セル電圧の測定値（セル電圧値）を得るように設けることができる。また、測定用集積回路８は、出力端子からセル電圧値のデータを出力するように設けることができる。このような測定用集積回路８を設けることにより、二次電池２のセル電圧値をデータとして出力することができる。 The measurement integrated circuit 8 can have first and second input terminals, the first input terminal can be electrically connected to the plus terminal of the secondary battery 2, and the second input terminal is a secondary battery. The two negative terminals can be electrically connected. As a result, the cell voltage of the secondary battery 2 is applied to the measurement integrated circuit 8. A noise filter may be provided between the measurement integrated circuit 8 and the secondary battery 2.
The measurement integrated circuit 8 can be provided to measure a voltage between the first and second input terminals and obtain a measured value of the cell voltage (cell voltage value). Further, the measurement integrated circuit 8 can be provided so as to output cell voltage value data from the output terminal. By providing such an integrated circuit for measurement 8, the cell voltage value of the secondary battery 2 can be output as data.
　電池監視部３は、プリント基板１２に実装されたマイクロコントローラユニット（ＭＣＵ）９を備えることができる。ＭＣＵ９は、ＣＰＵコア、メモリ、入出力回路を含むことができる。測定用集積回路８、ＭＣＵ９及びプリント基板１２は、測定用集積回路８が出力したセル電圧値のデータがＭＣＵ９に入力されるように設けることができ、また、容器５に収容された各二次電池２のセル電圧値のデータがＭＣＵ９に入力されるように設けることができる。なお、ここでは、測定用集積回路８、ＭＣＵ９を別々の集積回路として説明しているが、これらの機能が１つの測定用集積回路８に集積されていてもよい。
　ＭＣＵ９は、入力されたセル電圧値とメモリに記憶されていた電圧値とを比較するように設けることができる。また、ＭＣＵ９は、入力されたセル電圧値をメモリに記憶することができる。このことにより、ＭＣＵ９は、過充電、過放電、各二次電圧２のセル電圧のアンバランスなどを検出することができる。 The battery monitoring unit 3 can include a microcontroller unit (MCU) 9 mounted on the printed circuit board 12. The MCU 9 can include a CPU core, a memory, and an input / output circuit. The measurement integrated circuit 8, the MCU 9 and the printed circuit board 12 can be provided so that the cell voltage value data output from the measurement integrated circuit 8 can be input to the MCU 9, and each secondary contained in the container 5 can be provided. Data of the cell voltage value of the battery 2 can be input to the MCU 9. Here, although the measurement integrated circuit 8 and the MCU 9 are described as separate integrated circuits, these functions may be integrated in one measurement integrated circuit 8.
The MCU 9 can be provided to compare the input cell voltage value with the voltage value stored in the memory. Moreover, MCU9 can memorize | store the input cell voltage value in memory. As a result, the MCU 9 can detect overcharge, overdischarge, cell voltage imbalance of each secondary voltage 2, and the like.
　電池監視部３は、ヒューズ３４又はリレーを有することができる。ヒューズ３４又はリレーは、二次電池２と外部接続端子２７との電気的接続を切断できるように設けられる。
　ＭＣＵ９は、二次電池２の過充電を検出した場合に、二次電池２と外部接続端子２７との電気的接続を切断する信号をヒューズ３４又はリレーに出力することができる。このことにより、二次電池２の過充電が生じた場合に充電を中断させることができ、二次電池２が発熱することを防止することができる。 The battery monitoring unit 3 can include a fuse 34 or a relay. The fuse 34 or the relay is provided so that the electrical connection between the secondary battery 2 and the external connection terminal 27 can be disconnected.
When the MCU 9 detects overcharge of the secondary battery 2, the MCU 9 can output a signal for disconnecting the electrical connection between the secondary battery 2 and the external connection terminal 27 to the fuse 34 or the relay. Thus, when the secondary battery 2 is overcharged, the charging can be interrupted, and the secondary battery 2 can be prevented from generating heat.
　電池監視部３は、バランサーを有することができる。バランサーは、容器５に収容された各二次電池２のセル電圧を調整できるように設けられる。
　ＭＣＵ９は、各二次電圧２のセル電圧のアンバランスを検出した場合に、各二次電圧２のセル電圧のバランスがよくなるようにセル電圧を調整する信号をバランサーに出力することができる。
　以上のように電池監視部３は、容器５に収容された二次電池２の充放電を監視することができる。また、二次電池２の充放電の監視には、測定用集積回路８とＭＣＵ９が中心的な役割を果たしている。従って、測定用集積回路８又はＭＣＵ９に誤作動が生じると、蓄電装置４０の安全性、寿命特性などが低下する。 The battery monitoring unit 3 can have a balancer. The balancer is provided so that the cell voltage of each secondary battery 2 accommodated in the container 5 can be adjusted.
When the MCU 9 detects an unbalance of the cell voltages of the respective secondary voltages 2, the MCU 9 can output a signal for adjusting the cell voltage to the balancer so that the balance of the cell voltages of the respective secondary voltages 2 is improved.
As described above, the battery monitoring unit 3 can monitor charging / discharging of the secondary battery 2 accommodated in the container 5. The monitoring integrated circuit 8 and the MCU 9 play a central role in monitoring charge / discharge of the secondary battery 2. Accordingly, when malfunction occurs in the measurement integrated circuit 8 or the MCU 9, the safety, life characteristics, and the like of the power storage device 40 are degraded.
　一方、放送電波、通信電波などとして電波が利用されている。また、様々な機器やケーブルが電磁波を発している。プリント基板１２の配線パターンがアンテナとなりこれらの外来電磁波を受信し、外来電磁波ノイズが発生する場合がある。この外来電磁波ノイズにより電池監視部３が誤作動する場合がある。なお、外来電磁波とは、蓄電装置４０の外部で発生した電磁波が空間を伝達し蓄電装置４０に到達する電磁波をいう。 On the other hand, radio waves are used as broadcast radio waves and communication radio waves. Various devices and cables emit electromagnetic waves. In some cases, the wiring pattern of the printed circuit board 12 serves as an antenna to receive these external electromagnetic waves and generate external electromagnetic noise. The battery monitoring unit 3 may malfunction due to the external electromagnetic noise. The external electromagnetic wave refers to an electromagnetic wave generated outside the power storage device 40 and transmitted to the space to reach the power storage device 40.
　測定用集積回路８は、プリント基板１２の下面に実装される。また、プリント基板１２は、上蓋７の主要上面と測定用集積回路８との間に絶縁体基板１３が位置するように配置される。このため、絶縁体基板１３、プリント基板１２の上面に実装された電子部品１１、及びプリント基板１２の上面の配線１０により、上蓋７の主要上面を通過して測定用集積回路８の周辺の配線１０に達する外来電磁波の強度を弱めることができ、測定用集積回路８の周辺の配線１０がアンテナとなり生じる外来電磁波ノイズを弱めることができる。この結果、測定用集積回路８の誤作動を抑制することができる。電池監視部３の中心的な役割を果たしている測定用集積回路８の誤作動を抑制することにより、電池監視部８の誤作動を抑制することができ、蓄電装置４０の安全性及び寿命特性を向上させることができる。なお、プリント基板１２の上面には、他の電子部品１１を実装することができる。また、電池監視部８に含まれるすべての測定用集積回路８がプリント基板１２の下面２９に実装されてもよい。 The measurement integrated circuit 8 is mounted on the lower surface of the printed circuit board 12. The printed circuit board 12 is arranged so that the insulator substrate 13 is located between the main upper surface of the upper lid 7 and the measurement integrated circuit 8. For this reason, the peripheral wiring of the measurement integrated circuit 8 passes through the main upper surface of the upper lid 7 by the insulator substrate 13, the electronic component 11 mounted on the upper surface of the printed circuit board 12, and the wiring 10 on the upper surface of the printed circuit board 12. The intensity of the external electromagnetic wave reaching 10 can be reduced, and the external electromagnetic noise generated by the wiring 10 around the measurement integrated circuit 8 as an antenna can be reduced. As a result, malfunction of the measurement integrated circuit 8 can be suppressed. By suppressing the malfunction of the measurement integrated circuit 8 that plays the central role of the battery monitoring unit 3, the malfunction of the battery monitoring unit 8 can be suppressed, and the safety and life characteristics of the power storage device 40 can be reduced. Can be improved. Note that another electronic component 11 can be mounted on the upper surface of the printed circuit board 12. Further, all the measurement integrated circuits 8 included in the battery monitoring unit 8 may be mounted on the lower surface 29 of the printed circuit board 12.
　プリント基板１２は、下面２９にＭＣＵ９を実装することができる。また、プリント基板１２は、上蓋７の主要上面とＭＣＵ９との間に絶縁体基板１３が位置するように配置することができる。このため、ＭＣＵ９の周辺の配線１０に達する外来電磁波の強度を弱めることができ、ＭＣＵ９の周辺の配線１０がアンテナとなり生じる外来電磁波ノイズを弱めることができる。この結果、ＭＣＵ９の誤作動を抑制することができる。電池監視部３の中心的な役割を果たしているＭＣＵ９の誤作動を抑制することにより、電池監視部８の誤作動を抑制することができ、蓄電装置４０の安全性及び寿命特性を向上させることができる。 The printed circuit board 12 can mount the MCU 9 on the lower surface 29. The printed circuit board 12 can be arranged so that the insulator substrate 13 is positioned between the main upper surface of the upper lid 7 and the MCU 9. For this reason, the intensity | strength of the external electromagnetic wave which reaches the wiring 10 around MCU9 can be weakened, and the external electromagnetic wave noise which the wiring 10 around MCU9 becomes an antenna can be weakened. As a result, malfunction of the MCU 9 can be suppressed. By suppressing the malfunction of the MCU 9 that plays the central role of the battery monitoring unit 3, the malfunction of the battery monitoring unit 8 can be suppressed, and the safety and life characteristics of the power storage device 40 can be improved. it can.
５．保護ケース
　保護ケース４は、電池監視部３を収容するケースであり、筐体１に収容される。この保護ケース４を設けることにより、筐体１内の電池２を収容するスペースと電池監視部３を収容するスペースとを分離することができる。この構成により、電池２の液漏れが生じた場合でも、漏れ出た電解液が電池監視部３を収容した保護ケース４内に浸入することを抑制することができ、電池監視部３が損傷することを抑制することができる。このため、蓄電装置４０の安全性を向上させることができる。保護ケース４の材料は、例えば、硬質プラスチックである。
　保護ケース４は、内部が密閉空間となるように設けることができる。このことにより、電池２の液漏れが生じた場合でも、漏れ出た電解液が電池監視部３を収容した保護ケース４内に浸入することを防止することができる。
　蓄電装置４０は、保護ケース４と上蓋７とで挟持されたシール部材１９を備えることができる。このシール部材１９により、保護ケース４の内部を密封することができ、保護ケース４の内部を密閉空間とすることができる。 5). Protective Case The protective case 4 is a case that accommodates the battery monitoring unit 3 and is accommodated in the housing 1. By providing this protective case 4, the space for storing the battery 2 in the housing 1 and the space for storing the battery monitoring unit 3 can be separated. With this configuration, even when the battery 2 leaks, the leaked electrolyte can be prevented from entering the protective case 4 in which the battery monitoring unit 3 is accommodated, and the battery monitoring unit 3 is damaged. This can be suppressed. For this reason, the safety | security of the electrical storage apparatus 40 can be improved. The material of the protective case 4 is, for example, hard plastic.
The protective case 4 can be provided so that the inside becomes a sealed space. Thereby, even when the liquid leakage of the battery 2 occurs, it is possible to prevent the leaked electrolyte from entering the protective case 4 in which the battery monitoring unit 3 is accommodated.
The power storage device 40 can include a seal member 19 sandwiched between the protective case 4 and the upper lid 7. With this sealing member 19, the inside of the protective case 4 can be sealed, and the inside of the protective case 4 can be used as a sealed space.
　保護ケース４はプリント基板１２と二次電池２との間に配置することができる。このことにより、二次電池２と外部接続端子２７とを接続する配線と、測定用集積回路８又はＭＣＵ９との間に保護ケース４を配置することができ、前記配線に電流が流れることにより生じる磁界がプリント基板１２に影響を与えることを抑制することができる。このため、前記配線に電流が流れることにより生じる磁界が測定用集積回路８又はＭＣＵ９の誤作動を引き起こすことを抑制することができる。 The protective case 4 can be disposed between the printed circuit board 12 and the secondary battery 2. As a result, the protective case 4 can be disposed between the wiring connecting the secondary battery 2 and the external connection terminal 27 and the measurement integrated circuit 8 or the MCU 9, and a current flows through the wiring. It is possible to suppress the magnetic field from affecting the printed circuit board 12. For this reason, it can suppress that the magnetic field which arises when an electric current flows into the said wiring causes malfunction of the integrated circuit 8 for measurement, or MCU9.
実験
　測定用集積回路８をプリント基板の下面に実装した電子回路基板を備えた蓄電装置Ａと、測定用集積回路８をプリント基板の上面に実装した電子回路基板を備えた蓄電装置Ｂとを作製した。その他の構成は、図１～３に示した蓄電装置と同様に作製した。
　携帯電話の電波が外来電磁波ノイズを生じさせることを模擬した試験を行った。具体的には、８００ＭＨｚ帯（７１０－９６０ＭＨｚ）と２ＧＨｚ帯（１９２０－２２００ＭＨｚ）の電波を上側から蓄電装置Ａ、Ｂに到達させ、電池監視部３が誤作動を起こすか否かを調べた。
　その結果、蓄電装置Ａでは、電池監視部の誤作動を抑制することができたが、蓄電装置Ｂでは、電池監視部が誤作動を起こした。
　この結果から、測定用集積回路８をプリント基板の下面に実装することにより電池監視部の誤作動を抑制できることがわかった。 A power storage device A including an electronic circuit board having the experimental measurement integrated circuit 8 mounted on the lower surface of the printed board and a power storage device B including the electronic circuit board having the measurement integrated circuit 8 mounted on the upper surface of the printed board are manufactured. did. Other structures were manufactured in the same manner as the power storage device shown in FIGS.
A test was conducted to simulate the occurrence of external electromagnetic noise from radio waves from mobile phones. Specifically, radio waves of 800 MHz band (710-960 MHz) and 2 GHz band (1920-2200 MHz) were made to reach power storage devices A and B from the upper side, and it was examined whether or not battery monitoring unit 3 would malfunction.
As a result, in power storage device A, malfunction of the battery monitoring unit could be suppressed, but in power storage device B, the battery monitoring unit malfunctioned.
From this result, it was found that the malfunction of the battery monitoring unit can be suppressed by mounting the measurement integrated circuit 8 on the lower surface of the printed circuit board.
　１：筐体　　２、２ａ、２ｂ：二次電池　　３：電池監視部　　４：保護ケース　　５：容器　　６：中蓋　　７：上蓋　　８：測定用集積回路　　９：マイクロコントローラユニット（ＭＣＵ）　　１０：配線　　１１、１１ａ～１１ｏ：電子部品　　１２：プリント基板　　１３：絶縁体基板　　１４、１４ａ～１４ｆ：ＢＭＵ接続用端子部材　　１５：隔壁　　１６：配線　　１７、１７ａ～１７ｆ：配線端子部（ＢＭＵ側）　　１８、１８ａ、１８ｂ：配線端子部（電池側）　　１９：シール部材　　２１：正極　　２２：負極　　２３：セパレータ　　２４：非水電解質　　２５：電池容器　　２７、２７ａ、２７ｂ：外部接続端子　　２８：上面　　２９：下面　　３１、３１ａ～３１ｉ：ボルト　　３２：ナット　　３３：突起部　　３４：ヒューズ　　３６：接合用凸部　　３７、３７ａ、３７ｂ：スリット　　３８、３８ａ、３８ｂ：電池端子　　４０：蓄電装置 1: Housing 2, 2a, 2b: Secondary battery 3: Battery monitoring unit 4: Protection case 5: Container 6: Middle lid 7: Upper lid 8: Integrated circuit for measurement 9: Microcontroller unit (MCU) 10: Wiring 11 11a to 11o: electronic parts 12: printed circuit board 13: insulator board 14, 14a to 14f: terminal member for BMU connection 15: partition 16: wiring 17, 17a to 17f: wiring terminal part (BMU side) 18, 18a, 18b: wiring terminal part (battery side) 19: seal member 21: positive electrode 22: negative electrode 23: separator 24: nonaqueous electrolyte 25: battery container 27, 27a, 27b: external connection terminal 28: upper surface 29: lower surface 31, 31a- 31i: Bolt 32: Nut 33: Raised portion 34: Fuse 36: joint protrusions 37, 37a, 37b: slit 38, 38a, 38b: battery terminal 40: power storage device

Claims (3)

  1. 　二次電池と、前記二次電池の充放電を監視する電池監視部と、前記二次電池及び前記電池監視部を収容する筐体とを備え、
    前記筐体は、前記二次電池を収容する容器と、前記容器上に配置された上蓋とを備え、
    前記電池監視部は、上面及び下面を有するプリント基板と、前記プリント基板の上面及び下面に実装された複数の電子部品とを備え、
    前記プリント基板は、絶縁体基板と配線とを含み、かつ、前記二次電池と前記上蓋との間に配置され、
    複数の電子部品は、前記二次電池の電圧を測定するように設けられた測定用集積回路を含み、
    前記測定用集積回路は、前記プリント基板の下面に実装され、
    前記プリント基板は、前記上蓋の主要上面と前記測定用集積回路との間に前記絶縁体基板が位置するように配置されたことを特徴とする蓄電装置。     A secondary battery, a battery monitoring unit that monitors charging and discharging of the secondary battery, and a housing that houses the secondary battery and the battery monitoring unit,
    The housing includes a container for housing the secondary battery, and an upper lid disposed on the container.
    The battery monitoring unit includes a printed circuit board having an upper surface and a lower surface, and a plurality of electronic components mounted on the upper surface and the lower surface of the printed circuit board,
    The printed circuit board includes an insulator substrate and wiring, and is disposed between the secondary battery and the upper lid,
    The plurality of electronic components includes a measurement integrated circuit provided to measure the voltage of the secondary battery,
    The measurement integrated circuit is mounted on the lower surface of the printed circuit board,
    The power storage device, wherein the printed circuit board is disposed such that the insulator substrate is positioned between a main upper surface of the upper lid and the measurement integrated circuit.
  2. 　複数の電子部品は、前記プリント基板の下面に実装されたマイクロコントローラユニットを含み、
    前記プリント基板は、前記上蓋の主要上面と前記マイクロコントローラユニットとの間に前記絶縁体基板が位置するように配置された請求項１に記載の蓄電装置。     The plurality of electronic components includes a microcontroller unit mounted on the lower surface of the printed circuit board,
    The power storage device according to claim 1, wherein the printed circuit board is disposed such that the insulator substrate is positioned between a main upper surface of the upper lid and the microcontroller unit.
  3. 　前記電池監視部を収容する保護ケースをさらに備え、
    前記保護ケースは、前記プリント基板と前記二次電池との間に配置された請求項１又は２に記載の蓄電装置。     A protective case for accommodating the battery monitoring unit;
    The power storage device according to claim 1, wherein the protective case is disposed between the printed circuit board and the secondary battery.
PCT/JP2016/077877 2016-09-21 2016-09-21 Power storage device WO2018055702A1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019220438A (en) * 2018-06-22 2019-12-26 本田技研工業株式会社 Battery module
JP2020054047A (en) * 2018-09-25 2020-04-02 株式会社デンソー Battery pack
CN114122597A (en) * 2021-12-21 2022-03-01 江苏爱玛车业科技有限公司 Sodium ion battery module and electric vehicle
CN114424395A (en) * 2020-01-08 2022-04-29 株式会社Lg新能源 Battery pack, electronic device, and vehicle
EP4021755A4 (en) * 2019-08-28 2023-09-27 Sparkcharge, Inc. Electric vehicle charging apparatus, system and methods

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11345600A (en) * 1998-06-02 1999-12-14 Fuji Film Celltec Kk Battery pack
JP2006164655A (en) * 2004-12-06 2006-06-22 Sanyo Electric Co Ltd Battery pack
JP2007157358A (en) * 2005-11-30 2007-06-21 Sanyo Electric Co Ltd Battery pack
JP2008159590A (en) * 2006-12-22 2008-07-10 Robert Bosch Gmbh Battery pack, battery module, and method of operating battery module
JP2011222173A (en) * 2010-04-06 2011-11-04 Makita Corp Battery pack
JP2014160571A (en) * 2013-02-20 2014-09-04 Captex Co Ltd Battery module

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11345600A (en) * 1998-06-02 1999-12-14 Fuji Film Celltec Kk Battery pack
JP2006164655A (en) * 2004-12-06 2006-06-22 Sanyo Electric Co Ltd Battery pack
JP2007157358A (en) * 2005-11-30 2007-06-21 Sanyo Electric Co Ltd Battery pack
JP2008159590A (en) * 2006-12-22 2008-07-10 Robert Bosch Gmbh Battery pack, battery module, and method of operating battery module
JP2011222173A (en) * 2010-04-06 2011-11-04 Makita Corp Battery pack
JP2014160571A (en) * 2013-02-20 2014-09-04 Captex Co Ltd Battery module

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019220438A (en) * 2018-06-22 2019-12-26 本田技研工業株式会社 Battery module
US11038217B2 (en) 2018-06-22 2021-06-15 Honda Motor Co., Ltd. Battery module
JP2020054047A (en) * 2018-09-25 2020-04-02 株式会社デンソー Battery pack
JP7139832B2 (en) 2018-09-25 2022-09-21 株式会社デンソー battery pack
EP4021755A4 (en) * 2019-08-28 2023-09-27 Sparkcharge, Inc. Electric vehicle charging apparatus, system and methods
US11964578B2 (en) 2019-08-28 2024-04-23 SparkCharge, Inc. Electric vehicle charging apparatus, system and methods
CN114424395A (en) * 2020-01-08 2022-04-29 株式会社Lg新能源 Battery pack, electronic device, and vehicle
JP2022544974A (en) * 2020-01-08 2022-10-24 エルジー エナジー ソリューション リミテッド Battery packs, electronic devices and automobiles
JP7367182B2 (en) 2020-01-08 2023-10-23 エルジー エナジー ソリューション リミテッド Battery packs, electronic devices and automobiles
CN114424395B (en) * 2020-01-08 2024-06-25 株式会社Lg新能源 Battery pack, electronic device and vehicle
CN114122597A (en) * 2021-12-21 2022-03-01 江苏爱玛车业科技有限公司 Sodium ion battery module and electric vehicle

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