IP Library Granted Patent US 11,362,315
Granted Patent B2
US 11,362,315 · App. 17/134,764 · Granted Jun 14, 2022

Transfer lamination of electrodes in silicon-dominant anode cells

Inventors: Fred Bonhomme (Lake Forest, CA); Benjamin Park (Mission Viejo, CA); Kirk Shockley (Irvine, CA); Giulia Canton (Irvine, CA); David J. Lee (Irvine, CA)
Assignee: ENEVATE CORPORATION
H01M4/0471H01M4/0404H01M4/0409H01M4/0435H01M4/133H01M4/134H01M4/1393H01M4/1395H01M2004/027
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Quick Facts
Patent No.
US 11,362,315
App. No.
17/134,764
Granted
Jun 14, 2022
Kind
B2
Abstract

Systems and methods are provided for high volume roll-to-roll transfer lamination of electrodes for silicon-dominant anode cells.

Claims (12)

1. A method for electrode processing in a roll-to-roll system, the method comprising:

applying to each of a plurality of carrier films, at least one precursor composite film;

applying pyrolysis to each of the plurality of carrier films, wherein the pyrolysis is configured for converting a corresponding precursor composite film on each carrier film to a pyrolyzed composite film; and

roll pressing onto two sides of a current collector film, two pyrolyzed mixture films from two corresponding carrier films, to create an electrode composite film.

2. The method of claim 1 , comprising separating the two corresponding different carrier films of the plurality of carrier films after the pressing.

3. The method of claim 1 , comprising moving the plurality of carrier films during the electrode processing in the system using a plurality of moving rollers.

4. The method of claim 1 , comprising applying the pyrolysis at a temperature of >500° C.

5. The method of claim 1 , comprising applying the pyrolysis in a reducing atmosphere.

6. The method of claim 5 , comprising creating reducing atmosphere related conditions during the pyrolysis, the reducing atmosphere related conditions comprising at least one of an inert atmosphere, a vacuum, or flowing of one or more reducing gases.

7. The method of claim 1 , comprising cleaning and inspecting each electrode composite film after pressing.

8. The method of claim 1 , wherein the roll pressing comprises applying one or both of pressure and heat during the pressing.

9. The method of claim 1 , wherein the at least one precursor composite film comprises silicon (Si).

Assignments (1)
SECURITY INTEREST Recorded Mar 10, 2026
From: ENEVATE CORPORATION
To: MCANDREWS, HELD & MALLOY LTD.
Reel/Frame 075093/0935 →
Continuity (3)
Continuation 16681641 · Nov 12, 2019
Provisional Application 62854935 · May 30, 2019
Related Publication 20210119198A1 · Apr 22, 2021