Intelligent lithium ion battery monomer and module thereof

A technology for lithium-ion batteries and battery cells, applied in secondary batteries, secondary battery repair/maintenance, circuits, etc., can solve problems such as inability to achieve effective monitoring of performance, lack of intelligent interaction, etc., to improve test efficiency and quality effect

Pending Publication Date: 2021-04-20
江苏易美新思新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] After the production of square lithium-ion batteries, the single cells must be screened first, and then assembled into battery modules for screening. Although the existing screening tests are mainly charge and discharge tests, which are calibrated by external equipment, the In the screening process, monomers and modules are like "black boxes", which cannot effectively monitor their performance, and do not have any functions of intelligent interaction and data storage

Method used

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  • Intelligent lithium ion battery monomer and module thereof
  • Intelligent lithium ion battery monomer and module thereof
  • Intelligent lithium ion battery monomer and module thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as Figure 4 As shown, when using, when the battery unit is screened, the positive and negative terminals are connected to the test equipment through the power line to provide power, and the communication interface is connected to the test equipment to realize information interaction and synchronization, and can measure the current, voltage and pressure of the battery. , temperature and other parameters, and more complex parameters such as battery internal resistance are calculated by testing equipment, and the battery cells are screened. At the same time, the corresponding parameters are stored in the battery signal control module, which is convenient for later direct reading and understanding of battery screening information.

Embodiment 2

[0037] Such as Figure 5 As shown, the first intelligent lithium-ion battery module includes: a plurality of battery cells, the positive connection of the battery cell is connected to the negative connection of the next battery cell through a copper bar, the negative electrode of the first battery cell The wiring is connected with a power line, and the positive terminal of the last battery cell is connected with a power line. The battery cell includes two communication interfaces, one as an output port and one as an input port, the communication interface on the battery cell as an output port is connected to the communication interface of the next battery cell as an input port, and connected to form a communication port. circuit. Alternatively, the battery cells include a communication interface, and the communication interfaces on the battery cells are sequentially connected to form a communication loop.

Embodiment 3

[0039] Such as Image 6 As shown, the first intelligent lithium-ion battery module includes: a plurality of battery cells, the positive wires of the multiple battery cells are connected through a copper bar, and the negative wires of the multiple battery cells are connected through a copper bar. The positive pole connection and the negative pole connection of one battery cell are respectively connected with power lines. The battery cell includes two communication interfaces, one as an output port and one as an input port, the communication interface on the battery cell as an output port is connected to the communication interface of the next battery cell as an input port, and connected to form a communication port. circuit. Alternatively, the battery cells include a communication interface, and the communication interfaces on the battery cells are sequentially connected to form a communication loop. When in use, the battery signal control modules in the battery cells transmi...

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Abstract

The invention discloses an intelligent lithium ion battery monomer and a module thereof. A power supply positive port and a power supply negative port of a battery signal control module are respectively connected with a positive tab and a negative tab of a battery cell; 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; a positive pole lug and a negative pole lug of the battery cell are respectively connected with a positive pole connecting wire and a negative pole connecting wire of which the tail ends penetrate through the assembly space ring; the top ends of the positive pole connecting wire and the negative pole connecting wire sequentially penetrate through an insulating sheet and a cover plate which are arranged at the top of the assembly space ring; and the communication input end and the communication output end of the battery signal control module are respectively connected with a cable, and the cables sequentially penetrate through the assembly space ring, the insulation sheet and the wire passing hole in the cover plate to be connected with the communication interface. According to the invention, the test efficiency and quality of the battery are improved, and a basis is provided for more reasonably exerting the maximum performance of the battery.

Description

technical field [0001] The invention relates to an intelligent lithium ion battery monomer and its module, belonging to the technical field of intelligent lithium ion batteries. Background technique [0002] With the wide application of prismatic lithium-ion batteries, more and more attention has been paid to their safety, especially when the energy density and capacity of single batteries are getting larger and larger. Real-time and accurate monitoring and understanding of the parameters of lithium-ion batteries is crucial. more and more important. [0003] After the production of square lithium-ion batteries, the single cells must be screened first, and then assembled into battery modules for screening. Although the existing screening tests are mainly charge and discharge tests, which are calibrated by external equipment, the During the screening process, monomers and modules are like "black boxes", which cannot effectively monitor their performance, and do not have any f...

Claims

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Application Information

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IPC IPC(8): H01M10/42H01M10/48H01M10/0525
CPCY02E60/10
Inventor 侯晓华
Owner 江苏易美新思新能源科技有限公司
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