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Battery charging and discharging control device and method

A technology of discharge control and battery charging, applied in the direction of secondary battery charging/discharging, battery circuit devices, battery electrodes, etc., can solve problems such as cycle performance degradation, and achieve the effect of improving cycle performance

Pending Publication Date: 2022-03-04
LG ENERGY SOLUTION LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, when the charging speed is only kept constant, the cycle performance is relatively deteriorated

Method used

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  • Battery charging and discharging control device and method
  • Battery charging and discharging control device and method
  • Battery charging and discharging control device and method

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Embodiment Construction

[0022] Hereinafter, various embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In the present disclosure, the same reference numerals are used for the same elements in the drawings, and repeated descriptions for the same elements are omitted.

[0023] In the various embodiments of the present disclosure disclosed herein, specific structural or functional descriptions are merely exemplary to describe the embodiments of the present disclosure, and the various embodiments of the present disclosure can be implemented in various forms and should not be understood To be limited to the examples described herein.

[0024] As used in various embodiments, terms such as "first," "second," "first," or "second" may modify various elements regardless of order and / or importance, However, the components are not limited. For example, a first element could be termed a second element, and, similarly, a second element could, conversely...

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Abstract

A battery charge and discharge control apparatus according to an embodiment of the present disclosure includes a state of charge (SOC) measurement unit that measures an SOC of a battery; and a charge and discharge controller that controls the charging speed of the battery when the SOC of the battery is included in a preset section, and the preset section is determined as a section in which a change in resistance or a change in potential caused by the insertion of ions into a material constituting the battery is equal to or greater than a reference value.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of Korean Patent Application No. 10-2020-0012123 filed with the Korean Intellectual Property Office on January 31, 2020, the disclosure of which is incorporated herein by reference in its entirety. technical field [0003] The present disclosure relates to an apparatus and method for controlling charging and discharging of a battery. Background technique [0004] In recent years, research and development on secondary batteries have been actively conducted. Here, the secondary battery is a battery capable of recharging and discharging, and in its meaning, includes all existing Ni / Cd batteries, Ni / MH batteries, etc., and recent lithium ion batteries. Among secondary batteries, lithium ion batteries have the advantage of having much higher energy density than existing Ni / Cd batteries and Ni / MH batteries. In addition, lithium ion batteries can be manufactured in a small size and light ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/44H01M10/42
CPCH01M10/44H01M10/42H01M4/587H02J7/0048H02J7/00712H01M10/425H01M2010/4271H01M10/48H02J7/005H02J7/007182H02J7/007184H01M10/0525H02J7/0063
Inventor 金荣德金大洙崔贤俊
Owner LG ENERGY SOLUTION LTD