Battery manufacturing method

Patent metadata

Field	Value
Publication number	US-12021182-B2
Application number	US-201917043176-A
Country	US
Kind code	B2
Filing date	Oct 29, 2019
Priority date	Nov 20, 2018
Publication date	Jun 25, 2024
Grant date	Jun 25, 2024

Abstract

The present invention relates to a battery manufacturing device including: a fixed roller that moves an electrode where an active material is applied; a roller that rolls the electrode; and a stopper that is disposed between the fixed roller and the roller, and when the electrode is disconnected, moves the disconnected electrode.

First claim

The invention claimed is:

1. A battery manufacturing device comprising:
a fixed roller configured to move an electrode where an active material is applied;
a roller configured to roll the electrode;
a stopper that is disposed between the fixed roller and the roller, and configured to move the electrode when it is disconnected; and
a tension sensor capable of detecting a tension variation of the electrode,
wherein the tension sensor is configured to transmit a tension abnormality detection signal to the stopper, and
wherein the stopper comprises a moving roller configured to move the disconnected electrode.

2. The battery manufacturing device of claim 1 , wherein the stopper is configured to move toward the electrode in response to the tension abnormality detection signal.

3. The battery manufacturing device of claim 1 , wherein the stopper comprises a first stopper, a second stopper, a third stopper, and a fourth stopper.

4. The battery manufacturing device of claim 3 , wherein when the tension sensor does not detect a tension abnormality in the electrode, the first stopper and the third stopper are spaced upwardly from a top of the electrode, and the second stopper and the fourth stopper are spaced downwardly from a bottom of the electrode.

5. The battery manufacturing device of claim 3 , wherein when the tension sensor detects a tension abnormality in the electrode, the first stopper, the second stopper, the third stopper, and the fourth stopper are configured to move toward the electrode, and the first stopper and the third stopper are configured to contact a top of the disconnected electrode and the second stopper and the fourth stopper are configured to contact a bottom of the disconnected electrode to thereby fix the disconnected electrode.

6. The battery manufacturing device of claim 3 , wherein the fixed roller comprises an unwinding unit and a winding unit.

7. The battery manufacturing device of claim 6 , wherein when the disconnected electrode between the third stopper and the fourth stopper moves toward the roller, the winding unit is configured to rotate in a direction that is opposite to a direction in which the winding unit is configured to rotate when the battery manufacturing device normally operates.

8. The battery manufacturing device of claim 6 , wherein when the disconnected electrode between the first stopper and the second stopper moves toward the roller, the unwinding unit is configured to rotate in a direction in which the winding unit is configured to rotate when the battery manufacturing device normally operates.

Assignees

• Lg Chemical Ltd
• Lg Energy Solution Ltd

Inventors

• Paeng Ki Hoon
• Han Hyung Seok
• Yu Hyungkyun
• Moon Jaewon
• Lee Sang Myeon

Classifications

• Y10T29/49108

  Electric battery cell making · CPC title

• B65H2701/19

  Specific article or web · CPC title

• B65H18/103

  Reel-to-reel type web winding and unwinding mechanisms · CPC title

• B65H26/04

  for variation in tension · CPC title

• B65H20/02

  by friction roller · CPC title