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Charge regulation method of lithium ion battery

A lithium-ion battery and charge regulation technology, which is applied in the manufacture of electrolyte batteries, non-aqueous electrolyte batteries, and secondary battery repair/maintenance, etc. Blind trial, easy operation, simple measurement process effect

Active Publication Date: 2020-03-31
湖南领湃科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved in this application is that the existing charge adjustment method cannot obtain a higher state of charge consistency

Method used

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  • Charge regulation method of lithium ion battery
  • Charge regulation method of lithium ion battery
  • Charge regulation method of lithium ion battery

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Embodiment Construction

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0025] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom" etc. is based on the orientation or positional relationship shown in the drawings, and is only for It is convenient to describe the application and simplify the description, but not to indicate or imply that the device or element referred to must have a specific orientation, be constructed and op...

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Abstract

The invention provides a charge regulation method of a lithium ion battery. The charge regulation method comprises the following steps: obtaining a temperature-resistance correlation coefficient K1 and a temperature-voltage correlation coefficient K2 of the lithium ion battery; obtaining a charging and discharging current value I according to I = K2 / K1; and charging and discharging the lithium ionbattery by using the charging and discharging current value I to complete a load regulation process. According to the application, the charge adjustment method of setting the charge and discharge current is adopted, and the charge adjustment can be accurately carried out on the batteries of different models, so that relatively high voltage consistency is obtained, blind attempts are avoided, andthe charge adjustment efficiency is improved.

Description

technical field [0001] The present application relates to the field of manufacturing lithium-ion batteries, in particular to a charge-regulating method for lithium-ion batteries. Background technique [0002] In the field of lithium-ion battery manufacturing technology, the consistency of the state of charge of the battery is a key technical indicator of the battery. The state of charge of the battery is the percentage of the existing capacity of the battery to the total capacity of the battery, and the high consistency of the state of charge is the basis for the series and parallel connection of the battery. Key technical indicators. [0003] To improve the consistency of the state of charge of the battery, it is necessary to adjust the state of charge of the battery (charge regulation). There are two common ways: one is to discharge the battery to light, and then charge it into a fixed capacity A, then at this time The state of charge of the battery is A / B (B is the tota...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/3842G01R31/364H01M10/44H01M10/058
CPCG01R31/3842G01R31/3648H01M10/44H01M10/058Y02E60/10Y02P70/50
Inventor 武迪雷振宇崔立丰
Owner 湖南领湃科技股份有限公司
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