IP Library Granted Patent US 11,996,541
Granted Patent B2
US 11,996,541 · App. 17/598,675 · Granted May 28, 2024

Supply device

Inventors: Tatsuya Masada (Hyogo, JP); Kenji Inagaki (Hyogo, JP); Masahide Maruyama (Nara, JP)
Assignees: PANASONIC HOLDINGS CORPORATION; PANASONIC ENERGY CO., LTD.
H01M4/0435
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Quick Facts
Patent No.
US 11,996,541
App. No.
17/598,675
Granted
May 28, 2024
Kind
B2
Abstract

A device for manufacturing a laminated electrode body comprises: a negative electrode cutting drum that forms a negative electrode sheet by cutting a negative electrode single sheet to a first width and conveys the negative electrode sheet; a negative electrode heating drum that heats the negative electrode sheet; a positive electrode cutting drum that forms a positive electrode sheet by cutting a positive electrode single sheet to a second width and conveys the positive electrode sheet; a positive electrode heating drum that heats the positive electrode sheet; and a bonding drum at which the negative electrode sheet is arranged on a first separator single sheet, a second separator single sheet is arranged on the negative electrode sheet, the positive electrode sheet is arranged on the second separator single sheet, and the sheets are bonded. The conveyance between drums is carried out by a belt conveyor which joins with two drums.

Claims (26)

1. A supply device comprising

a holding head rotated around a drum center axis holding an electrode assembly comprising an active material layer on a current collector or a laminated body comprising the electrode assembly and a separator, wherein

the holding head comprises

suction holes formed on an outer peripheral surface and configured to suck and hold the electrode assembly or the laminated body,

a groove extending along a rotation direction on the outer peripheral surface, and

supply means configured to be engaged with the groove, separate the electrode assembly from a suction surface of the holding head and supply the electrode assembly to a drum of a next stage.

2. The supply device according to claim 1 , wherein

the supply means are a belt conveyor.

3. The supply device according to claim 2 , wherein

for the belt conveyor, a pulley or a knife edge on one end side is arranged inside the groove, a pulley on the other end side is arranged near the drum of the next stage, and the electrode assembly or the laminated body is separated from the suction surface of the holding head and transferred to the drum of the next stage.

4. A supply device comprising:

a first drum comprising a holding head rotated around a drum center axis holding an electrode assembly comprising an active material layer on a current collector or a laminated body comprising the electrode assembly and a separator; and

a drum of a next stage configured to suck and hold the electrode assembly or the laminated body discharged from the first drum, wherein

the drum of the next stage is a second drum,

the second drum comprises

suction holes formed on an outer peripheral surface and configured to suck and hold the electrode assembly or the laminated body and

a vacuum pad inside the suction holes, and

the electrode assembly or the laminated body is supplied from the first drum to the second drum via the vacuum pad.

5. The supply device according to claim 1 , wherein

the drum of the next stage is a heating drum configured to heat the electrode assembly, a bonding drum configured to bond the electrode assembly onto the separator or a laminating drum for laminating the plurality of laminated bodies.

6. The supply device according to claim 1 , wherein

the electrode assembly is either a rectangular positive electrode plate or a rectangular negative electrode plate.

7. The supply device according to claim 4 , wherein

the drum of the next stage is a heating drum configured to heat the electrode assembly, a bonding drum configured to bond the electrode assembly onto the separator or a laminating drum for laminating the plurality of laminated bodies.

8. The supply device according to claim 4 , wherein

the electrode assembly is either a rectangular positive electrode plate or a rectangular negative electrode plate.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 12, 2023
From: SANYO ELECTRIC CO. LTD
To: PANASONIC ENERGY CO., LTD.
Reel/Frame 063623/0047 →
CHANGE OF NAME Recorded May 12, 2022
From: PANASONIC CORPORATION
To: PANASONIC HOLDINGS CORPORATION
Reel/Frame 060054/0248 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 3, 2022
From: MASADA, TATSUYA; INAGAKI, KENJI; MARUYAMA, MASAHIDE
To: PANASONIC CORPORATION; SANYO ELECTRIC CO., LTD.
Reel/Frame 058883/0130 →
Priority Claims (1)
JP 2019-067845 · Mar 29, 2019 · national
Continuity (1)
Related Publication 20220199965A1 · Jun 23, 2022
Cited By (1)
US 12,358,173