CN112687968A - Intelligent lithium ion battery monomer and module thereof - Google Patents

Intelligent lithium ion battery monomer and module thereof Download PDF

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Publication number
CN112687968A
CN112687968A CN202011397737.3A CN202011397737A CN112687968A CN 112687968 A CN112687968 A CN 112687968A CN 202011397737 A CN202011397737 A CN 202011397737A CN 112687968 A CN112687968 A CN 112687968A
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CN
China
Prior art keywords
battery
communication
lithium ion
negative electrode
positive electrode
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Pending
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CN202011397737.3A
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Chinese (zh)
Inventor
侯晓华
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Suzhou Yimei Xinsi New Energy Technology Co ltd
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Suzhou Yimei Xinsi New Energy Technology Co ltd
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Priority to CN202011397737.3A priority Critical patent/CN112687968A/en
Publication of CN112687968A publication Critical patent/CN112687968A/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The invention discloses an intelligent lithium ion battery monomer and a module thereof, wherein a power supply positive electrode port and a power supply negative electrode port of a battery signal control module are respectively connected with a positive electrode lug and a negative electrode lug of a battery core, and a plurality of signal input ports of the battery signal control module are respectively connected with a voltage sensor, a current sensor, a temperature sensor and a pressure sensor; the positive electrode lug and the negative electrode lug of the battery core are respectively connected with a positive electrode wiring and a negative electrode wiring, the tail ends of which penetrate through the assembly space ring, and the top ends of the positive electrode wiring and the negative electrode wiring sequentially penetrate through an insulating sheet and a cover plate which are arranged at the top of the assembly space ring; the communication input end and the communication output end of the battery signal control module are respectively connected with a cable, and the cable sequentially penetrates through the wire passing holes in the assembling space ring, the insulating sheet and the cover plate to be connected with the communication interface. The invention improves the testing efficiency and quality of the battery and provides a basis for more reasonably exerting the maximum performance of the battery.

Description

Intelligent lithium ion battery monomer and module thereof
Technical Field
The invention relates to an intelligent lithium ion battery monomer and a module thereof, belonging to the technical field of intelligent lithium ion batteries.
Background
With the wide application of square lithium ion batteries, the safety problem of the square lithium ion batteries is more and more emphasized, and particularly, under the condition that the energy density and the capacity of a single battery are more and more increased, the real-time and accurate monitoring and understanding of the parameters of the lithium ion batteries are more and more important.
The square lithium ion battery is produced, and then the single batteries are assembled into a battery module to be screened, although the existing screening test mainly comprises a charge and discharge test and is calibrated by external equipment, the single batteries and the module are just like a black box in the screening process, the performance of the single batteries and the module cannot be effectively monitored, and the square lithium ion battery does not have any intelligent interaction and data storage functions.
The technical problem to be solved by the technicians in the field is to realize data acquisition, interaction and storage of the single body and the module and improve the structure of the lithium ion battery, so that unsafe use of the battery is effectively avoided, and the maximum performance of the battery can be exerted to the greatest extent.
Disclosure of Invention
The purpose is as follows: in order to overcome the defects in the prior art, the invention provides an intelligent lithium ion battery monomer and a module thereof.
The technical scheme is as follows: in order to solve the technical problems, the technical scheme adopted by the invention is as follows:
an intelligent lithium ion battery cell, comprising: the battery comprises a shell and a battery core, wherein an assembly space ring is arranged at an opening of the shell, an explosion-proof valve is arranged on the assembly space ring, a battery signal control module is arranged on the inner wall of the shell below the assembly space ring, a power supply positive electrode port and a power supply negative electrode port of the battery signal control module are respectively connected with a positive electrode lug and a negative electrode lug of the battery core, and a plurality of signal input ports of the battery signal control module are respectively connected with a voltage sensor, a current sensor, a temperature sensor and a pressure sensor; the positive electrode lug and the negative electrode lug of the battery core are respectively connected with a positive electrode wiring and a negative electrode wiring, the tail ends of which penetrate through the assembly space ring, and the top ends of the positive electrode wiring and the negative electrode wiring sequentially penetrate through an insulating sheet and a cover plate which are arranged at the top of the assembly space ring; the communication input end and the communication output end of the battery signal control module are respectively connected with a cable, and the cable sequentially passes through the wire passing holes on the assembling space ring, the insulating sheet and the cover plate to be connected with the communication interface; the battery signal control module is used for sensor signal acquisition, signal receiving and sending and signal storage.
Preferably, the temperature sensor is arranged on the inner wall of the shell below the assembly space ring.
Preferably, the voltage sensor and the current sensor are arranged on the pole ear of the battery core.
Preferably, the pressure sensor is arranged on the inner wall of the shell below the explosion-proof valve.
Preferably, one or two communication interfaces are connected to the tail end of the cable.
As preferred scheme, be provided with the sealing washer between insulating piece and the apron for the leakproofness between positive pole wiring, negative pole wiring and the apron bottom is further guaranteed.
Preferably, the housing is made of aluminum alloy.
An intelligent lithium ion battery module comprising: the single battery positive connection wire is connected with the next single battery negative connection wire through a copper bar, the first single battery negative connection wire is connected with a power line, and the last single battery positive connection wire is connected with the power line. The battery monomer comprises two communication interfaces, one is used as an output port, the other is used as an input port, and the communication interface which is used as the output port on the battery monomer is connected with the communication interface which is used as the input port on the next battery monomer and is connected into a communication loop. Or the battery monomer comprises a communication interface, and the communication interfaces on the battery monomer are sequentially connected to form a communication loop.
An intelligent lithium ion battery module comprising: the single battery comprises a plurality of single batteries, wherein positive electrode wiring of the single batteries is connected through a copper bar, negative electrode wiring of the single batteries is connected through a copper bar, and the positive electrode wiring and the negative electrode wiring of the first battery are respectively connected with a power line. The battery monomer comprises two communication interfaces, one is used as an output port, the other is used as an input port, and the communication interface which is used as the output port on the battery monomer is connected with the communication interface which is used as the input port on the next battery monomer and is connected into a communication loop. Or the battery monomer comprises a communication interface, and the communication interfaces on the battery monomer are sequentially connected to form a communication loop.
As a preferred scheme, the system further comprises an upper computer, wherein the upper computer is connected in series in the communication loop.
Has the advantages that: according to the intelligent lithium ion battery monomer and the module thereof, the measured data of the battery monomer is transmitted through the battery monomer packaging structure of the battery signal control module with the sensor, and then the intelligent battery module is formed through various connection combinations of the battery monomers, so that the testing efficiency and the quality of the battery are improved, and a basis is provided for more reasonably playing the maximum performance of the battery.
Drawings
Fig. 1 is a schematic diagram of a battery cell structure according to the present invention.
Fig. 2 is a schematic structural diagram of a battery signal control module.
Fig. 3 is a schematic diagram of a battery cell structure of two communication interfaces.
Fig. 4 is a schematic diagram of a cell test connection.
Fig. 5 is a schematic view of a series connection structure of battery cells of a first battery module according to the present invention.
Fig. 6 is a schematic view of a first battery module according to the present invention.
Fig. 7 is a schematic view of a second battery module according to the present invention.
Fig. 8 is a schematic view illustrating a structure in which battery cells of a third battery module according to the present invention are connected in series.
Detailed Description
The present invention will be further described with reference to the following examples.
As shown in fig. 1-2, an intelligent lithium ion battery cell includes: the battery comprises a shell 1 and a battery core 2, wherein an assembly space ring 3 is arranged at an opening of the shell 1, an explosion-proof valve 4 is arranged on the assembly space ring 3, a battery signal control module 5 is arranged on the inner wall of the shell 1 below the assembly space ring 3, a power supply positive electrode port 501 and a power supply negative electrode port 502 of the battery signal control module 5 are respectively connected with a positive electrode lug 201 and a negative electrode lug 202 of the battery core 2, and a plurality of signal input ports 503 of the battery signal control module 5 are respectively connected with a voltage sensor 6, a current sensor 7, a temperature sensor 8 and a pressure sensor 9; the positive pole lug 201 and the negative pole lug 202 of the battery core 2 are respectively connected with a positive pole wiring line 10 and a negative pole wiring line 11 of which the tail ends penetrate through the assembling space ring 3, and the top ends of the positive pole wiring line 9 and the negative pole wiring line 10 sequentially penetrate through an insulating sheet 12 and a cover plate 13 which are arranged at the top of the assembling space ring 3; the communication input end 504 and the communication output end 505 of the battery signal control module 5 are respectively connected with a cable, and the cable sequentially passes through the wire passing holes on the assembly space ring 3, the insulation sheet 12 and the cover plate 13 to be connected with the communication interface 14; the battery signal control module 5 is used for sensor signal acquisition, signal receiving and sending and signal storage.
The temperature sensor 8 is arranged on the inner wall of the shell below the assembling space ring.
The voltage sensor 6 and the current sensor 7 are arranged on the pole lugs of the battery core.
The pressure sensor 9 is arranged on the inner wall of the shell below the explosion-proof valve.
As shown in fig. 3, one or two communication interfaces 14 are connected to the end of the cable.
And a sealing ring 15 is arranged between the insulating sheet 12 and the cover plate 13 and used for further ensuring the sealing property between the anode wiring, the cathode wiring and the bottom of the cover plate.
The shell 1 is made of aluminum alloy.
Example 1:
as shown in fig. 4, when the battery screening device is used, when a battery unit is screened, the positive connection wire and the negative connection wire are connected with the testing equipment through the power lines to provide power, the communication interface is connected with the testing equipment to realize information interaction and synchronization, parameters such as current, voltage, pressure and temperature of the battery can be measured, more complex parameters such as internal resistance of the battery can be calculated through the testing equipment, the single battery is screened, and meanwhile, corresponding parameters are stored in the battery signal control module, so that the battery screening information can be conveniently read directly at the later stage and can be known.
Example 2:
as shown in fig. 5, the first intelligent lithium ion battery module includes: the single battery positive connection wire is connected with the next single battery negative connection wire through a copper bar, the first single battery negative connection wire is connected with a power line, and the last single battery positive connection wire is connected with the power line. The battery monomer comprises two communication interfaces, one is used as an output port, the other is used as an input port, and the communication interface which is used as the output port on the battery monomer is connected with the communication interface which is used as the input port on the next battery monomer and is connected into a communication loop. Or the battery monomer comprises a communication interface, and the communication interfaces on the battery monomer are sequentially connected to form a communication loop.
Example 3:
as shown in fig. 6, the first intelligent lithium ion battery module includes: the single battery comprises a plurality of single batteries, wherein positive electrode wiring of the single batteries is connected through a copper bar, negative electrode wiring of the single batteries is connected through a copper bar, and the positive electrode wiring and the negative electrode wiring of the first battery are respectively connected with a power line. The battery monomer comprises two communication interfaces, one is used as an output port, the other is used as an input port, and the communication interface which is used as the output port on the battery monomer is connected with the communication interface which is used as the input port on the next battery monomer and is connected into a communication loop. Or the battery monomer comprises a communication interface, and the communication interfaces on the battery monomer are sequentially connected to form a communication loop. When the battery signal control module is used, the battery signal control modules in the battery units transmit signals through the communication loop, and management of the battery module is achieved.
Example 4:
as shown in fig. 7, the second intelligent lithium ion battery module includes: the battery comprises a plurality of battery monomers, an upper computer and a plurality of battery monomers, wherein the positive electrode wiring of each battery monomer is connected with the negative electrode wiring of the next battery monomer through a copper bar, the negative electrode wiring of the first battery monomer is connected with a power line, and the positive electrode wiring of the last battery monomer is connected with the power line. The battery monomer comprises two communication interfaces, one is used as an output port, the other is used as an input port, and the communication interface which is used as the output port on the battery monomer is connected with the communication interface which is used as the input port on the next battery monomer and is connected into a communication loop. And an upper computer is connected in the communication loop. When the system is used, the information and the instruction sent by the single battery are communicated and received and processed by the upper computer, so that the reliability of the system is improved.
Example 5:
a second intelligent lithium ion battery module comprising: the battery comprises a plurality of battery monomers and an upper computer, wherein the positive electrode wiring of the battery monomers is connected through a copper bar, the negative electrode wiring of the battery monomers is connected through a copper bar, and the positive electrode wiring and the negative electrode wiring of the first battery monomer are respectively connected with a power line. The battery monomer comprises two communication interfaces, one is used as an output port, the other is used as an input port, and the communication interface which is used as the output port on the battery monomer is connected with the communication interface which is used as the input port on the next battery monomer and is connected into a communication loop. And an upper computer is connected in the communication loop.
Example 6:
as shown in fig. 8, the third battery module structure includes: the battery comprises a plurality of battery monomers, an upper computer and a plurality of battery monomers, wherein the positive electrode wiring of each battery monomer is connected with the negative electrode wiring of the next battery monomer through a copper bar, the negative electrode wiring of the first battery monomer is connected with a power line, and the positive electrode wiring of the last battery monomer is connected with the power line. The battery monomer comprises a communication interface, and the communication interfaces on the battery monomer are sequentially connected to form a communication loop. And an upper computer is connected in the communication loop. When the system is used, the information and the instruction sent by the single battery are communicated and received and processed by the upper computer, so that the reliability of the system is improved.
Example 7:
the third kind of battery module structure includes: the battery comprises a plurality of battery monomers and an upper computer, wherein the positive electrode wiring of the battery monomers is connected through a copper bar, the negative electrode wiring of the battery monomers is connected through a copper bar, and the positive electrode wiring and the negative electrode wiring of the first battery monomer are respectively connected with a power line. The battery monomer comprises a communication interface, and the communication interfaces on the battery monomer are sequentially connected to form a communication loop. And an upper computer is connected in the communication loop.
Example 8:
when the battery management system is used, when the battery monomers form the battery module, the battery monomers are connected in series or in parallel to form the module, the copper bar is connected with the positive electrode wiring and the negative electrode wiring of each battery monomer in series by adopting a daisy chain structure, the communication interface of each battery monomer is also connected by adopting the daisy chain structure, and the communication line loop is connected with the upper computer, so that the functions of data sharing, balance, communication self-diagnosis redundancy design and the like among the battery cores are realized, and a complete battery management system is formed.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.

Claims (10)

1. An intelligent lithium ion battery cell, comprising: shell, battery core, its characterized in that: an assembly space ring is arranged at an opening of the shell, an explosion-proof valve is arranged on the assembly space ring, a battery signal control module is arranged on the inner wall of the shell below the assembly space ring, a power supply positive electrode port and a power supply negative electrode port of the battery signal control module are respectively connected with a positive electrode lug and a negative electrode lug of a battery core, and a plurality of signal input ports of the battery signal control module are respectively connected with a voltage sensor, a current sensor, a temperature sensor and a pressure sensor; the positive electrode lug and the negative electrode lug of the battery core are respectively connected with a positive electrode wiring and a negative electrode wiring, the tail ends of which penetrate through the assembly space ring, and the top ends of the positive electrode wiring and the negative electrode wiring sequentially penetrate through an insulating sheet and a cover plate which are arranged at the top of the assembly space ring; the communication input end and the communication output end of the battery signal control module are respectively connected with a cable, and the cable sequentially passes through the wire passing holes on the assembling space ring, the insulating sheet and the cover plate to be connected with the communication interface; the battery signal control module is used for sensor signal acquisition, signal receiving and sending and signal storage.
2. The intelligent lithium ion battery cell of claim 1, wherein: the temperature sensor is arranged on the inner wall of the shell below the assembling space ring.
3. The intelligent lithium ion battery cell of claim 1, wherein: the voltage sensor and the current sensor are arranged on the pole lugs of the battery core.
4. The intelligent lithium ion battery cell of claim 1, wherein: the pressure sensor is arranged on the inner wall of the shell below the explosion-proof valve.
5. The intelligent lithium ion battery cell of claim 1, wherein: the tail end of the cable is connected with one or two communication interfaces.
6. The intelligent lithium ion battery cell of claim 1, wherein: and a sealing ring is arranged between the insulating sheet and the cover plate and used for further ensuring the sealing property between the anode wiring, the cathode wiring and the bottom of the cover plate.
7. The intelligent lithium ion battery cell of any one of claims 1 to 6, wherein: the shell is made of aluminum alloy.
8. The battery module of any one of claims 1-7, wherein: the method comprises the following steps: a plurality of battery monomers, an intelligent lithium ion battery module, includes: the positive connection wire of the battery monomer is connected with the negative connection wire of the next battery monomer through a copper bar, the negative connection wire of the first battery monomer is connected with a power line, and the positive connection wire of the last battery monomer is connected with the power line; or positive connection wires of a plurality of battery monomers are connected through a copper bar, negative connection wires of the plurality of battery monomers are connected through the copper bar, and the positive connection wire and the negative connection wire of the first battery monomer are respectively connected with a power line; the communication interfaces on each battery unit are sequentially connected in series to form a communication loop.
9. The battery module of claim 8, wherein: the communication loop is as follows: the battery monomer comprises two communication interfaces, one is used as an output port and the other is used as an input port, and the communication interface which is used as the output port on the battery monomer is connected with the communication interface which is used as the input port on the next battery monomer and is connected into a communication loop; or the battery monomer comprises a communication interface, and the communication interfaces on the battery monomer are sequentially connected to form a communication loop.
10. The battery module of claim 8 or 9, wherein the battery module comprises: still include the host computer, the host computer is established ties in communication circuit.
CN202011397737.3A 2020-12-04 2020-12-04 Intelligent lithium ion battery monomer and module thereof Pending CN112687968A (en)

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CN202011397737.3A CN112687968A (en) 2020-12-04 2020-12-04 Intelligent lithium ion battery monomer and module thereof

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CN112687968A true CN112687968A (en) 2021-04-20

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102263304A (en) * 2011-07-01 2011-11-30 山东上存能源股份有限公司 Lithium-ion power battery and battery management system
CN105489958A (en) * 2016-01-25 2016-04-13 北京神州巨电新能源技术开发有限公司 Parallel-connection-free large-capacity lithium ion battery module
DE102017003719A1 (en) * 2016-04-15 2017-11-02 Yan Zhou Device and method for charging the multi-cell battery with direct charge compensation
CN107508007A (en) * 2017-09-22 2017-12-22 烟台金潮宇科蓄电池有限公司 A kind of intelligent traction accumulator
CN111092257A (en) * 2019-12-17 2020-05-01 天津力神电池股份有限公司 Intelligent lithium ion battery
CN111224182A (en) * 2018-11-26 2020-06-02 Aptiv技术有限公司 Battery module

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102263304A (en) * 2011-07-01 2011-11-30 山东上存能源股份有限公司 Lithium-ion power battery and battery management system
CN105489958A (en) * 2016-01-25 2016-04-13 北京神州巨电新能源技术开发有限公司 Parallel-connection-free large-capacity lithium ion battery module
DE102017003719A1 (en) * 2016-04-15 2017-11-02 Yan Zhou Device and method for charging the multi-cell battery with direct charge compensation
CN107508007A (en) * 2017-09-22 2017-12-22 烟台金潮宇科蓄电池有限公司 A kind of intelligent traction accumulator
CN111224182A (en) * 2018-11-26 2020-06-02 Aptiv技术有限公司 Battery module
CN111092257A (en) * 2019-12-17 2020-05-01 天津力神电池股份有限公司 Intelligent lithium ion battery

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