Electrode assembly and secondary battery

US11264680B2 · kind B2 · utility

Assignee

• Enovix Corporation · US

Inventors

• Robert S. Busacca · San Francisco, US
• Ashok Lahiri · Mainz, DE
• Murali Ramasubramanian · Fremont, US
• Bruno A. Valdes · Sunnyvale, US
• Gardner Cameron Dales · Los Gatos, US
• Christopher J. Spindt · Menlo Park, US
• Geoffrey Matthew Ho · San Ramon, US
• Harrold J. Rust, III · Alamo, US
• James D. Wilcox · Cadillac, US
• John F. Varni · Campbell, US
• Kim Han Lee · Pleasanton, US
• Nirav S. Shah · Pleasanton, US
• Richard J. Contreras · Campbell, US
• Lynn Van Erden · Pollock Pines, US
• Ken S. Matsubayashi · Fremont, US
• Jeremie J. Dalton · San Jose, US
• Jason Howard · Lawrenceville, US
• Robert K. Rosen · Midland, US
• Jonathan Doan · Mountain View, US
• Michael J. Armstrong · Central City, US
• Anthony Calcaterra · Milpitas, US
• Benjamin L. Cardozo · Palo Alto, US
• Joshua David Winans · Mountain View, US
• Neelam Singh · Houston, US
• Jeffrey Glenn Buck · Salinas, US
• Thomas John Schuerlein · Pleasanton, US
• Kim Lester Fortunati · Pleasanton, US
• Neal Sarswat · Pleasanton, US

Key dates

• Filing date: Nov 15, 2018
• Grant date: Mar 1, 2022
• Expiry date: Nov 15, 2038

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P70/50
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

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.