Enovix Corporation

Enovix Operations Inc.

Robert F Kinchen

Robert S Busacca

Bruno A Valdes

Kim Han Lee

Anthony Calcaterra

William H Chandler, Jr

Miles A M Kool

Murali Ramasubramanian

Ashok Lahiri

John F Varni

Gardner Cameron Dales

Gunther A Koblmiller

Robert Keith Rosen

Kim Lester Fortunati

Aditya Mandalam

A method for manufacturing a structure comprising and electrode assembly having a porous electrically insulating material, and first and second endplates, is provided. The electrode assembly comprises a population of unit cells stacked in series in a stacking direction, opposing first and second longitudinal end surfaces separated along the stacking direction. First and second endplates are separated in the stacking direction and overlie the first and second longitudinal end surfaces. According to embodiments of the structure, (i) each unit cell comprises an electrode structure, a counter-electrode structure, and an electrically insulating separator between the electrode and counter-electrode structures, (ii) the electrode structures, counter-electrode structures and electrically insulating separators within each unit cell have opposing first and second vertical end surfaces separated in a vertical direction, and (iii) the vertical direction is orthogonal to the stacking direction. The method comprises providing a porous electrically insulating material to the electrode assembly using a stencil.

Electrode assembly structure, secondary battery, and methods of manufacture

A secondary battery assembly includes an electrode assembly having mutually perpendicular transverse, longitudinal, and vertical axes corresponding to X, Y and Z axes, respectively. A constraint is disposed on an outer surface of the electrode assembly. At least one of the electrode assembly or constraint has a protrusion extending in an X-Y plane defined by the X and Y axes and having a first radius of curvature in the X-Y plane. A battery enclosure encloses the electrode assembly and the constraint. An enclosure protection layer is disposed over at least a portion of the protrusion and between the protrusion and the battery enclosure. The enclosure protection layer defines a second radius of curvature overlying the first radius of curvature in the X-Y plane. The second radius of curvature is greater than the first radius of curvature to thereby reduce the potential of the protrusion causing damage to the battery enclosure.

Protection layer for electrochemical batteries and systems and methods therefor

A process for merging webs for the production of an electrode assembly for a secondary battery, the process comprising: moving a first web comprising a population of first components for electrode sub-units, the first components delineated by corresponding weakened patterns, and a population of first conveying features. Moving a second web comprising a population of second components for the electrode sub-units, the second components delineated by corresponding weakened patterns, and a population of second conveying features. Conveying a receiving member, the receiving member comprising a plurality of projections. Receiving the first web on the receiving member. Overlaying, the second web on the first web such that the first components are aligned with the second components and the conveying features of the second web are engaged by the plurality of projections on the receiving member. The second web merge location being spaced from the first web merge location.

Apparatus, systems and methods for the production of electrodes, electrode stacks and batteries

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Fremont, CA, United States of America

Robert F Kinchen