Battery module simulation system and method

Patent metadata

Field	Value
Publication number	US-12181446-B2
Application number	US-202117802739-A
Country	US
Kind code	B2
Filing date	Jul 21, 2021
Priority date	Aug 11, 2020
Publication date	Dec 31, 2024
Grant date	Dec 31, 2024

Abstract

The present invention relates to a battery module simulation system and method for easily implementing pressure and temperature conditions in a battery module by easily changing the pressure and temperature applied to a battery cell in a pressure measurement test of the battery cell.

First claim

The invention claimed is:

1. A system for simulating a battery module, the system comprising:
a case configured to accommodate a battery cell therein;
a charge/discharge unit configured to electrically connect to the battery cell;
a plurality of tubes configured to be disposed as a single layer on the one surface of the battery cell, each tube including a structure configured for a fluid to flow into;
a fluid supply unit configured to fluidly connect to the plurality of tubes and configured to supply the fluid to the plurality of tubes to thereby apply pressure to the battery cell;
a temperature controller configured to control a temperature of the fluid which has flowed into the plurality of tubes; and
a sensor unit disposed between the plurality of tubes and one surface of the case and configured to measure a pressure inside the case, wherein the system is configured to differently set the temperature applied to each region of the battery cell by individually setting the temperature of the fluid flowing into each of the plurality of tubes.

2. The system of claim 1 , wherein each of the plurality of tubes further includes a valve configured to control an inflow of the fluid.

3. The system of claim 1 , wherein each of the plurality of tubes includes the temperature controller.

4. The system of claim 1 , further comprising:
an output unit configured to connect to the sensor unit and configured to output a pressure value of an inside of the case; and
a storage unit configured to store the pressure value.

5. The system of claim 1 , wherein the case further includes first and second compression pads configured to be disposed on two surfaces of the battery cell, respectively.

6. The system of claim 1 , wherein each of the plurality of tubes further includes a soft or elastic material.

7. The system of claim 1 , wherein the fluid flowing into each of the plurality of tubes is in a liquid or gel state.

8. The system of claim 1 , wherein the sensor unit includes a pressure sensor having a planar structure.

9. A method of simulating a battery module using the system of claim 1 , the method comprising:
setting an inflow of the fluid and the temperature of the fluid flowing into the plurality of tubes to thereby apply the pressure to a battery cell accommodated by the case and control a temperature of the battery cell; and
inducing a swelling of the battery cell according to charge and discharge and measuring a pressure inside the case.

10. The method of claim 9 , further comprising individually setting the temperature of the fluid flowing into each of the plurality of tubes so as to differently set the temperature applied to each region of the battery cell.

Assignees

• Lg Energy Solution Ltd

Inventors

• Kim Dong Wook
• Kim Jae Yeong
• Kim Yong Il

Classifications

• H01M10/4285 Primary

  Testing apparatus · CPC title

• G01N3/18

  Performing tests at high or low temperatures · CPC title

• G01R31/3644

  Constructional arrangements · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title

• G01N3/12 Primary

  Pressure testing · CPC title