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Battery module detecting high temperature of battery cell and method for detecting high temperature of battery cell

A battery module and battery unit technology, applied in thermometers, battery disconnect circuits, battery circuit devices, etc. that are directly sensitive to heat, electric/magnetic components, etc., can solve problems such as unusable

Pending Publication Date: 2021-04-30
LG ENERGY SOLUTION LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] However, since the prior art blocks the output of the battery module based only on the temperature of one battery cell, there is a problem that if a high temperature occurs only in one battery cell, the remaining battery cells are usually usable but also unusable.

Method used

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  • Battery module detecting high temperature of battery cell and method for detecting high temperature of battery cell
  • Battery module detecting high temperature of battery cell and method for detecting high temperature of battery cell
  • Battery module detecting high temperature of battery cell and method for detecting high temperature of battery cell

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Embodiment approach

[0086] According to another embodiment of the present invention, a method for detecting a high temperature of a battery module may include: a single battery cell temperature measuring step (S100) of measuring the temperature of each of a plurality of battery cells constituting the battery module; a grouping step (S200), generating a group of measured temperatures of a single battery cell into a temperature group of at least two or more adjacent battery cells; a specific group average temperature calculation step (S300), calculating the average temperature of the battery cells of each group; A high temperature determining step (S400) of determining whether there is a high temperature in the battery module based on the calculated average temperature of each group; and a battery module charging / discharging preventing step (S600) of turning off the battery module if it is determined in the high temperature determining step that there is a high temperature FET to prevent charging or...

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Abstract

A battery module according to an embodiment of the present invention comprises: a plurality of battery cells; a positive (+) output terminal formed through connecting the plurality of battery cells; a negative (-) output terminal formed through connecting the plurality of battery cells; a FET provided on a current path between the positive (+) output terminal and an external device; a temperature information measurement unit for measuring temperature information of the plurality of battery cells; and a protective IC chip for controlling the FET.

Description

technical field [0001] The present invention relates to a battery module capable of detecting high temperature of a battery cell and preventing output of the battery module when the high temperature exists, and a method of detecting high temperature of the battery cell. [0002] More particularly, the present invention relates to a battery module that calculates an average temperature by grouping adjacent battery cells to determine whether the battery cells are at a high temperature and a method of detecting the high temperature of the battery cells. Background technique [0003] A general battery module is composed of a plurality of battery cells that can be charged / discharged. [0004] In particular, when a lithium ion battery cell is used for a long time, heat is generated in the battery cell, and in particular, as the amount of current increases during charging or discharging, a large-capacity battery module composed of a plurality of battery cells may generate more Muc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/42H01M10/48G01R31/396G01R31/389G01R31/36G01K7/22H02J7/00
CPCG01K7/22Y02E60/10G01K3/06G01K3/005H02J7/00309H02J7/0031H02J7/0013H02J7/007194H01M10/425H01M2010/4271H01M10/441H01M10/443H01M10/486H01M10/48H01M10/4257H01M10/482G01R31/396G01R31/389G01R31/3648H01M50/296H01M50/569H01M50/581G01K1/026G01K3/02H01M2200/105
Inventor 金坰稷李镇贤孙荣洙
Owner LG ENERGY SOLUTION LTD