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Lithium-ion battery charging method

A technology for lithium-ion batteries and charge adjustment, which is applied in the manufacture of electrolyte batteries, non-aqueous electrolyte batteries, and secondary battery repair/maintenance, etc. The effect of blind trial, easy operation, and high voltage consistency

Active Publication Date: 2022-05-24
湖南领湃科技股份有限公司
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  • Abstract
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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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  • Lithium-ion battery charging method
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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 application provides a charging method for a lithium-ion battery, comprising: obtaining the temperature-resistance correlation coefficient K of the lithium-ion battery 1 and temperature-voltage correlation coefficient K 2 ;according to I=K 2 / K 1 Obtain a charge and discharge current value I; use the charge and discharge current value I to charge and discharge the lithium-ion battery to complete the charge adjustment process. The present application adopts the charge regulation method of setting the charge and discharge current, which can accurately carry out charge regulation on different types of batteries, thereby obtaining higher voltage consistency, avoiding blind attempts, and improving charge regulation efficiency.

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 Patents(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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