Enovix Corporation

Formfactor, Inc.

International Business Machines Corporation

Enovix Operations Inc.

Michael J Armstrong

Murali Ramasubramanian

Ashok Lahiri

Nirav S Shah

Harrold Jones Rust, Iii

James D Wilcox

Robert M Spotnitz

Laurie Jane Lauchlan

Brian E Brusca

Robert S Busacca

Bruno A Valdes

John F Varni

Kim Han Lee

Jeremie James Dalton

Richard J Contreras

Gardner Cameron Dales

Anthony Calcaterra

Ken S Matsubayashi

Gunther A Koblmiller

Robert Keith Rosen

Kim Lester Fortunati

Neelam Singh

Jeffrey Glenn Buck

Neal Sarswat

Thomas John Schuerlein

Joshua David Winans

Jonathan C Doan

Christopher G Castledine

Christopher J Spindt

Lynn Van Erden

Jason N Howard

Vladimir K Dioumaev

Geoffrey Matthew Ho

Benjamin L Cardozo

John K Gritters

Robert A Cole

Benjamin J Cardozo

Daniel J Noelle

Benjamin N Eldridge

Richard Hsiao

Neil Leslie Robertson

Ravindra Vaman Shenoy

Eric D Hobbs

Keith J Breinlinger

Hugo Alberto Santini

David Eugene Heim

Li Fan

Greg Omweg

Gayle J Herman

Christopher Castledine, Iii

Harold J Rust, Iii

Harrold Jones Rust Iii

Iii Harrold J Rust

Jason Newton Howard

Harold J Rust Iii

Harrold J Rust Iii

A method includes stacking unit cells in a stacking direction. Each unit cell includes an electrode structure, a separator structure, and a counter-electrode structure. The electrode structure includes an electrode current collector and an electrode active material layer, and the counter-electrode structure includes a counter-electrode current collector and a counter-electrode active material layer. The electrode and counter-electrode structures extend in a longitudinal direction perpendicular to the stacking direction, and an end portion of the electrode current collector extends past the electrode active material and the separator structure in the longitudinal direction. The end portion of each electrode current collector is bent in a direction orthogonal to the longitudinal direction, an electrode busbar is positioned extending in the stacking direction with a surface adjacent the end portions, and heat and pressure are applied to the electrode busbar to adhere the end portions to the busbar through an adhesive layer.

Electrode assemblies including current limiters

An electrode structure for use in an energy storage device, the electrode structure comprising a population of electrodes, a population of counter-electrodes and an electrically insulating material layer separating members of the electrode population from members of the counter-electrode population, each member of the electrode population having a longitudinal axis Athat is surrounded by the electrically insulating separator layer.

Separators for three-dimensional batteries

Embodiments of secondary batteries having electrode assemblies are provided. A secondary battery can comprise an electrode assembly having a stacked series of layers, the stacked series of layers having an offset between electrode and counter-electrode layers in a unit cell member of the stacked series. A set of constraints can be provided with a primary constraint system with first and second primary growth constraints separated from each other in a longitudinal direction, and connected by at least one primary connecting member, and a secondary constraint system comprises first and second secondary growth constraints separated in a second direction and connected by members of the stacked series of layers. The primary constraint system may at least partially restrain growth of the electrode assembly in the longitudinal direction, and the secondary constraint system may at least partially restrain growth in the second direction that is orthogonal to the longitudinal direction.

Electrode assembly and secondary battery

Embodiments of a method for the preparation of an electrode assembly, include removing a population of negative electrode subunits from a negative electrode sheet, the negative electrode sheet comprising a negative electrode sheet edge margin and at least one negative electrode sheet weakened region that is internal to the negative electrode sheet edge margin, removing a population of separator layer subunits from a separator sheet, and removing a population of positive electrode subunits from a positive electrode sheet, the positive electrode sheet comprising a positive electrode edge margin and at least one positive electrode sheet weakened region that is internal to the positive electrode sheet edge margin, and stacking members of the negative electrode subunit population, the separator layer subunit population and the positive electrode subunit population in a stacking direction to form a stacked population of unit cells.

Electrode assembly manufacture and device

Secondary batteries and methods of manufacture thereof are provided. A secondary battery can comprise an offset between electrode and counter-electrode layers in a unit cell. Secondary batteries can be prepared by removing a population of negative electrode subunits from a negative electrode sheet, the negative electrode sheet comprising a negative electrode sheet edge margin and at least one negative electrode sheet weakened region that is internal to the negative electrode sheet edge margin, removing a population of separator layer subunits from a separator sheet, and removing a population of positive electrode subunits from a positive electrode sheet, the positive electrode sheet comprising a positive electrode edge margin and at least one positive electrode sheet weakened region that is internal to the positive electrode sheet edge margin, and stacking members of the negative electrode subunit population, the separator layer subunit population and the positive electrode subunit population.

Electrode assembly, secondary battery, and method of manufacture

Electrode assemblies including current limiters and methods of assembling such electrode assemblies

A structure for use in an energy storage device, the structure comprising a backbone system extending generally perpendicularly from a reference plane, and a population of microstructured anodically active material layers supported by the lateral surfaces of the backbones, each of the microstructured anodically active material layers having a void volume fraction of at least 0.1 and a thickness of at least 1 micrometer.

Electrode structures

An electrochemical stack comprising carrier ions, an anode comprising an anode active material layer, a cathode comprising a cathode active material layer, a separator between the anode and the cathode comprising a porous dielectric material and a non-aqueous electrolyte, and an ionically permeable conductor layer located between the separator and an electrode active material layer.

Ionically permeable structures for energy storage devices

Microstructured electrode structures

Growing community of inventors

Danville, CA, United States of America

Michael J Armstrong