Secondary battery temperature measuring device

Patent metadata

Field	Value
Publication number	US-12560488-B2
Application number	US-202318314142-A
Country	US
Kind code	B2
Filing date	May 9, 2023
Priority date	May 13, 2022
Publication date	Feb 24, 2026
Grant date	Feb 24, 2026

Abstract

A secondary battery temperature measuring device according to the present disclosure includes a jig configured to pressurize a secondary battery, and a temperature measuring member configured to measure a temperature of the secondary battery, wherein the jig includes a hole configured to accommodate the temperature measuring member, thereby providing the secondary battery temperature measuring device capable of stable and accurate temperature measurement when evaluating high-temperature long-term storage of the secondary battery.

First claim

What is claimed is:

1 . A secondary battery temperature measuring device, comprising:
a jig configured to pressurize a secondary battery; and a temperature measuring member configured to measure a temperature of the secondary battery, wherein the jig comprises a hole configured to accommodate the temperature measuring member, wherein the jig comprises a lower plate on which the secondary battery is seated and an upper plate configured to pressurize the secondary battery from an upper part, wherein the secondary battery comprises an electrode assembly and an electrode tab extending from the electrode assembly, and the lower plate and the upper plate clamp the electrode assembly, and wherein the electrode tab is drawn out to an outside of the upper plate and the lower plate.

2 . The secondary battery temperature measuring device of claim 1 , wherein the upper plate and the lower plate are formed to comprise a thermally conductive metal material.

3 . The secondary battery temperature measuring device of claim 1 , wherein the upper plate comprises a fixing member configured to fix the secondary battery.

4 . The secondary battery temperature measuring device of claim 1 , wherein the temperature measuring member is adhered to an inner surface of the hole by a heat-resistant tape.

5 . The secondary battery temperature measuring device of claim 1 , wherein the temperature measuring member comprises a connecting member, and the connecting member is drawn out to an outside of the hole.

6 . The secondary battery temperature measuring device of claim 1 , wherein the hole is formed in at least a part of the lower plate and the upper plate adjacent to the electrode tab.

7 . The secondary battery temperature measuring device of claim 1 , wherein the electrode tab comprises a positive electrode tab and a negative electrode tab, and the temperature measuring member is accommodated in the hole adjacent to the positive electrode tab.

8 . The secondary battery temperature measuring device of claim 1 , wherein a thermally conductive polymer is formed on at least a part of an outer periphery and an inner surface of the hole.

9 . The secondary battery temperature measuring device of claim 8 , wherein the temperature measuring member is adhered to the thermally conductive polymer.

10 . The secondary battery temperature measuring device of claim 1 , wherein at least one or more of the holes are provided.

11 . The secondary battery temperature measuring device of claim 1 , wherein a cross section of the hole comprises any one or more shapes of a polygon and a curve.

12 . The secondary battery temperature measuring device of claim 1 , wherein the hole is formed in a central part of the upper plate.

13 . The secondary battery temperature measuring device of claim 1 , wherein the temperature measuring member is in contact with the secondary battery.

Assignees

• Sk On Co Ltd

Inventors

• Lee Keun Jun
• Kim Kyu Beom

Classifications

• H01M10/486 Primary

  for measuring temperature · CPC title

• H01M50/178

  for pouch or flexible bag cells · CPC title

• H01M10/052

  Li-accumulators · CPC title

• H01M10/058

  Construction or manufacture · CPC title

• H01M10/0481

  Compression means other than compression means for stacks of electrodes and separators · CPC title