IP Library Granted Patent US 10,879,522
Granted Patent B2
US 10,879,522 · App. 16/681,641 · Granted Dec 29, 2020

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
H01M4/0471H01M4/0435H01M4/134H01M4/1395H01M2004/027
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 10,879,522
App. No.
16/681,641
Granted
Dec 29, 2020
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 system for continuous roll-to-roll electrode processing, the system comprising:

a plurality of carrier films, wherein each carrier film of the plurality of carrier films has applied thereon at a start of electrode processing in the system, at least one precursor composite film;

one or more heat treatment ovens, wherein each of the one or more heat treatment ovens is configured for applying pyrolysis to at least one carrier film of the plurality of carrier films, to convert a corresponding precursor composite film on the at least one carrier film to a pyrolyzed composite film; and

a plurality of press rollers, wherein at least two of the plurality of press rollers are configured for pressing onto two sides of a current collector film, two pyrolyzed mixture films, with each one of the two pyrolyzed mixture films being applied from one of two corresponding different carrier films of the plurality of carrier films, to create a corresponding electrode composite film, wherein the two corresponding different carrier films of the plurality of carrier films are separated after the pressing.

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

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

4. The system of claim 1 , wherein each of the one or more heat treatment ovens is configured to apply the pyrolysis at a temperature >500° C.

5. The system of claim 1 , wherein each of the one or more heat treatment ovens is configured to apply the pyrolysis in a reducing atmosphere.

6. The system of claim 5 , wherein each of the one or more heat treatment ovens is configured to create reducing atmosphere related conditions, 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 system of claim 1 , comprising at least one cleaning and inspection component configured for cleaning and inspecting electrode composite films after pressing.

8. The system of claim 1 , wherein the plurality of press rollers is configured to apply one or both of pressure and heat during the pressing.

9. The system of claim 1 , wherein each of the one or more heat treatment ovens is configured for applying pyrolysis to only one carrier film of the plurality of carrier films.

Assignments (2)
SECURITY INTEREST Recorded Mar 10, 2026
From: ENEVATE CORPORATION
To: MCANDREWS, HELD & MALLOY LTD.
Reel/Frame 075093/0935 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 13, 2019
From: BONHOMME, FRED; PARK, BENJAMIN; SHOCKLEY, KIRK; CANTON, GIULIA; LEE, DAVID J.
To: ENEVATE CORPORATION
Reel/Frame 050991/0199 →
Continuity (2)
Provisional Application 62854935 · May 30, 2019
Related Publication 20200381704A1 · Dec 3, 2020
Cited By (1)
US 12,230,781