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Intelligent charging and discharging control system and method for lithium battery

An intelligent charging/discharging and control system technology, applied in secondary battery charging/discharging, battery circuit devices, secondary batteries, etc. process and other issues to achieve the effect of increasing safety, improving lifespan, and reducing charging frequency

Pending Publication Date: 2019-12-03
中媒数字媒体(江苏)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the charging and discharging process of lithium batteries is mostly protected by the circuit protection board. The circuit protection board manages the charging and discharging of each lithium battery. Let the battery discharge at the same time to increase the overall discharge capacity of the battery, but this discharge method consumes a lot of battery
Furthermore, due to the limitations of the management node, it is impossible to effectively protect the charging and discharging process of the battery with a large capacity, which may easily lead to spontaneous combustion of the battery with a large capacity

Method used

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  • Intelligent charging and discharging control system and method for lithium battery
  • Intelligent charging and discharging control system and method for lithium battery
  • Intelligent charging and discharging control system and method for lithium battery

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with accompanying drawing.

[0037] Such as figure 1 As shown, a lithium battery intelligent charging and discharging control system includes several lithium battery packs 2, a controller 8, a charging circuit 5, a power load circuit 6 and several coulomb counters 1;

[0038] The number of coulomb counters 1 is in one-to-one correspondence with the number of lithium battery packs 2; each coulomb counter 1 is connected to a lithium battery pack 2;

[0039] Each lithium battery pack 2 is respectively connected with the charging circuit 5 and the load circuit 6 through the first intermediate relay 10 and the second intermediate relay 13; the first intermediate relay 10 and the second intermediate relay 13 are connected with the controller 8; Each lithium battery pack 2 is connected to the controller 8 through a coulomb counter 1.

[0040] By connecting the lithium battery pack to the coulomb counter, it...

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Abstract

The invention discloses an intelligent charging and discharging control system and method for a lithium battery. According to the system, each coulombmeter is connected with a lithium battery pack; each lithium battery pack is connected with a charging circuit and an electricity load circuit through a first intermediate relay and a second intermediate relay; the first intermediate relay and the second intermediate relay are connected with the controller; and each lithium battery pack is connected with the controller through a coulombmeter. The method comprises the steps of: detecting conditions of lithium battery packs; performing grouping; screening the battery packs of different groups according to different screening rules, and respectively performing charging and discharging processing; and switching states after charging and discharging meet requirements. According to the system and the method, the phenomena of high capacity instability and easy spontaneous combustion of the existing lithium batteries can be effectively overcome, the lithium batteries can be grouped for independent charging and discharging management, the stability of the high-capacity lithium batteries can beeffectively ensured, simultaneous charging and discharging are avoided, the utilization rate of the batteries can be improved, the safety of the batteries is enhanced, and the service life of the batteries can be prolonged.

Description

technical field [0001] The invention relates to a lithium battery intelligent charging and discharging control system and a control method. Background technique [0002] At present, the charging and discharging process of lithium batteries is mostly protected by the circuit protection board. The circuit protection board manages the charging and discharging of each lithium battery. Let the battery discharge at the same time to increase the overall discharge capacity of the battery, but this discharge method consumes a lot of battery. Furthermore, due to the limitations of the management node, it is impossible to effectively protect the charging and discharging process of a battery with a large capacity, which may easily lead to spontaneous combustion of a battery with a large capacity. Contents of the invention [0003] Aiming at the problems existing in the above-mentioned prior art, the present invention provides a lithium battery intelligent charging and discharging con...

Claims

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Application Information

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IPC IPC(8): H02J7/00H01M10/44
CPCH02J7/0013H01M10/441Y02E60/10
Inventor 冯玉林
Owner 中媒数字媒体(江苏)有限公司
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