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Battery cell SOC regulation and control device and regulation and control method thereof

A control device and cell technology, applied in circuits, electrical components, secondary batteries, etc., can solve the problems of poor SOC consistency, long occupation time, complicated operation, etc., to increase stability, shorten time consumption, and ensure consistency Effect

Active Publication Date: 2022-02-11
SVOLT ENERGY TECH (WUXI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defect of poor SOC consistency of multiple batteries in the prior art, thereby providing a battery SOC regulating device that can simply and quickly improve the SOC consistency of multiple batteries
[0004] Another problem of the technology to be solved by the present invention is to overcome the defects of complex operation and long time-consuming of the cell SOC regulation method in the prior art, thereby providing a simple and fast cell SOC regulation method

Method used

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  • Battery cell SOC regulation and control device and regulation and control method thereof
  • Battery cell SOC regulation and control device and regulation and control method thereof
  • Battery cell SOC regulation and control device and regulation and control method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0044] combine Figure 1-Figure 8As shown, a cell SOC regulating device provided in this embodiment includes:

[0045] A crossbeam 6, the number of the crossbeams 6 is two, and the two crossbeams 6 are electrically connected;

[0046] A connection end 2, one end of the connection end 2 is electrically connected to the beam 6, and the end of the connection end 2 away from the beam 6 is suitable for abutting against the positive pole 11 or the negative pole 12 of the cell 1;

[0047] Each of the beams 6 is connected with the same number of connection terminals 2, and the two beams 6 are respectively adapted to be connected to the positive poles 11 and the negative poles 12 of a plurality of the electric cores 1 via the connection terminals 2. .

[0048] It should be noted that the battery pack is composed of multiple cells, and the capacity of the battery pack is equal to the sum of the minimum value of the charging capacity of all cells and the minimum value of the discharge ...

Embodiment 2

[0078] A cell SOC regulation method provided in this embodiment includes:

[0079] Divide the capacity of N batteries;

[0080]Discharge each cell to a preset voltage;

[0081] Connect the two beams of the above-mentioned cell SOC control device to the positive pole and the negative pole of the battery respectively via the connection end;

[0082] When the voltage value in the cell SOC regulating device reaches a stable value, the connection between the cell SOC regulating device and the cell is disconnected.

[0083] Optionally, when the two beams of the battery SOC regulating device are respectively connected to the positive pole and the negative pole of the battery through the connection end and the voltage value in the battery SOC regulating device reaches a stable value, disconnect The connection between the cell SOC regulating device and the cell also includes:

[0084] Read the voltage value in the cell SOC control device.

[0085] Wherein, the voltage value is the ...

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Abstract

The invention relates to the technical field of battery production devices, in particular to a battery cell SOC regulation and control device and a regulation and control method thereof. The battery cell SOC regulation and control device comprises two cross beams which are electrically connected with each other; and connecting ends. One end of the connecting end is electrically connected with the cross beam, and the end, away from the cross beam, of the connecting end is suitable for abutting against a positive pole or a negative pole of a battery cell; and each cross beam is connected with the same number of connecting ends, and the two cross beams are respectively suitable for being connected with positive poles and negative poles of a plurality of battery cells through the connecting ends. According to the battery cell SOC regulation and control device provided by the invention, the two cross beams are connected with the plurality of connecting ends with the same number, one end, far away from the cross beam, of each connecting end abuts against the positive pole or the negative pole of one battery cell, and the two cross beams are electrically connected, so that the plurality of battery cells are connected in parallel, and the voltages of the battery cells in a parallel circuit are the same; namely, the SOC of each battery cell reaches the same, and rapid regulation and control of SOC homogenization of a plurality of battery cells are realized.

Description

technical field [0001] The invention relates to the technical field of battery production devices, in particular to a cell SOC regulating device and a regulating method thereof. Background technique [0002] The battery pack includes multiple cells, and the capacity of the battery pack is affected by the capacity of each cell and the initial SOC (State of Charge, State of Charge) distribution of the cells. The capacity of the pack depends on the maximum and minimum values ​​of the initial SOC of the cells, that is, the distribution width of the SOC. Therefore, when the capacity of the cells is determined, the SOC distribution width of the cells can be narrowed when the cells are grouped to improve the performance of the battery pack. The overall capacity, in the prior art, the SOC of each battery cell is adjusted to be equal by charging or discharging each battery cell to the same cut-off voltage through the test equipment, but it is limited by the accuracy and stability of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/42H01M10/48H01M50/503H01M50/512H01M50/514
CPCH01M10/4285H01M10/48H01M50/512H01M50/503H01M50/514H01M2010/4271Y02E60/10
Inventor 李东江
Owner SVOLT ENERGY TECH (WUXI) CO LTD
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