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Apparatus and method for adjusting charging condition of secondary battery

一种二次电池、充电条件的技术，应用在二次电池充电/放电、二次电池、二次电池维修/保养等方向，能够解决热量积聚、温度降低等问题，达到防止过热的效果

Active Publication Date: 2017-11-28
LG ENERGY SOLUTION LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] However, there is a limit to reducing the temperature of the secondary battery to an appropriate level using only the structural design of the secondary battery
Even when the heat generated from the secondary battery is dissipated into the atmosphere, a situation that causes heat accumulation may occur

Method used

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  • Apparatus and method for adjusting charging condition of secondary battery
  • Apparatus and method for adjusting charging condition of secondary battery
  • Apparatus and method for adjusting charging condition of secondary battery

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Embodiment Construction

[0042] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Before proceeding with the description, it should be understood that the terms used in the specification and appended claims should not be construed as limited to the ordinary and dictionary meanings based on the principle of allowing the inventor to properly define the terms for best interpretation, but Explanations are made based on meanings and concepts corresponding to technical aspects of the present disclosure. Therefore, the description presented herein is only a preferred example for the purpose of illustration, and is not intended to limit the scope of the present disclosure. Therefore, it should be understood that the present disclosure may have other equivalents without departing from the scope of the present disclosure. material and modifications may be made to the disclosure.

[0043] figure 1 is a block diagram schematica...

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Abstract

An apparatus and method for adjusting a charging condition of a secondary battery are provided. The apparatus includes: a controller configured to receive measurement results from a current measuring unit and a temperature measuring unit of the secondary battery, determine a charging current value and a current temperature value, determine a predicted overheat amount required to raise the temperature of the secondary battery from the current temperature to a threshold temperature for a preset reference time by using a predefined thermodynamic calculation equation, determine a predicted charging current required to generate the predicted overheat amount through charging, determine a predicted charging voltage expected when the predicted charging current flows through an equivalent circuit of the secondary battery, and when a condition of the predicted charging voltage being lower than a preset upper limit charging voltage is satisfied, adjust the upper limit charging voltage such that the upper limit charging voltage is lowered to the predicted charging voltage.

Description

technical field [0001] The present disclosure relates to an apparatus and method for adjusting charging conditions such that the amount of heat generated by charging is maintained at an appropriate level by predicting in advance the temperature rise of the secondary battery when charging the secondary battery. [0002] This application claims priority from Korean Patent Application No. 10-2015-0118167 filed in Korea on Aug. 21, 2015, the disclosure of which is incorporated herein by reference. Background technique [0003] Secondary batteries generate electrical energy through electrochemical oxidation-reduction reactions, and are widely used for various purposes. The scope of use of secondary batteries is gradually expanding. For example, secondary batteries are used in devices carried by human hands (such as mobile phones, laptop computers, digital cameras, video cameras, tablet computers, and power tools), various electrically driven power supply devices (such as electri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCH02J7/0091H02J7/00H02J7/04B60L2240/545B60L2260/56B60L2240/54B60L58/24H01M10/44B60L58/15B60L58/26B60L58/27H02J2310/48H02J7/007194Y02T10/70Y02E60/10B60L3/0046H02J7/00041H02J7/0071H02J7/007184H01M10/4221
Inventor 徐世旭孙商逸高友涵林振馨崔容硕
Owner LG ENERGY SOLUTION LTD
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