Control method and control system for voltage consistency of sodium ion battery pack

A control system and control method technology, applied in battery/fuel cell control devices, battery circuit devices, arrangement of multiple synchronous batteries, etc., can solve problems such as voltage inconsistency, improve cycle life, increase actual use capacity, The effect of resolving voltage inconsistency

Active Publication Date: 2020-01-24
溧阳中科海钠科技有限责任公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a control method and control system for the voltage consistency of a sodium ion battery pack, which can effectively solve the problem of voltage inconsistency between the monomers of the sodium ion battery pack in the process of recycling, and improve the actual use capacity and capacity of the battery pack. Cycle life

Method used

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  • Control method and control system for voltage consistency of sodium ion battery pack
  • Control method and control system for voltage consistency of sodium ion battery pack

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Embodiment Construction

[0056] The technical solutions of the present invention will be further described in detail below through the accompanying drawings and embodiments.

[0057] The method for controlling the voltage consistency of the sodium ion battery pack provided in this embodiment is used for the control of the voltage consistency of the single cells in the sodium ion battery pack, especially the voltage consistency control after the sodium ion battery pack is used for a period of time.

[0058] The method steps are as follows figure 1 Shown, including:

[0059] Step 101: Connect the sodium ion battery pack to the control system, and the control system performs system initialization and self-check processing.

[0060] First connect the sodium ion battery pack to the control system. After starting the control system, the system communication unit will perform a self-check. If the communication is abnormal, try to connect again. If the communication is normal, the system initialization and self-check ...

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Abstract

The invention relates to a control method and a control system for voltage consistency of a sodium ion battery pack. The voltage difference of single batteries of the sodium-ion battery pack is determined, whether consistency control needs to be performed or not is determined, for the battery pack needing consistency control, the electric quantity of the sodium ion battery pack is completely discharged through one-step or multi-step discharging, then the charging current is controlled for charging the sodium ion battery pack, and the sodium ion battery pack is cut off after being charged to acertain voltage, so a problem of voltage inconsistency among single bodies in the recycling process of the sodium ion battery pack is effectively solved, and the actual use capacity and the recyclingservice life of the battery pack are improved.

Description

Technical field [0001] The invention relates to the technical field of secondary batteries, in particular to a control method and control system for the voltage consistency of a sodium ion battery pack. Background technique [0002] Lithium-ion batteries are widely used in people's lives, but with the gradual consumption of limited lithium resources, the price of lithium gradually rises, and seeking alternative products for lithium-ion batteries has become an important research direction for power batteries or energy storage batteries. As an alkali metal element similar to lithium, sodium has the advantages of abundant resources, low price, and similar intercalation mechanism. The research of room temperature sodium ion batteries has attracted more and more attention. In recent years, room temperature sodium ion batteries have made substantial progress. [0003] Limited to the voltage and capacity of single cells, sodium-ion batteries used for electric vehicles or large-scale ener...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H02J7/00B60L58/22
CPCB60L58/22H02J7/0016Y02T10/70
Inventor康利斌唐堃胡勇胜
Owner溧阳中科海钠科技有限责任公司