Electrode structures for three-dimensional batteries

US10038214B2 · kind B2 · utility

Assignee

• Enovix Corporation · US

Inventors

• Harrold J. Rust, III · Alamo, US
• Ashok Lahiri · Mainz, DE
• Murali Ramasubramanian · Fremont, US
• Robert M. Spotnitz · Pleasanton, US
• Robert A. Cole · San Jose, US
• Gunther A. Koblmiller · Oakley, US
• Nirav S. Shah · Pleasanton, US
• Brian E. Brusca · San Jose, US
• Christopher G. Castledine · Sunnyvale, US
• Laurie J. Lauchlan · Saratoga, US
• James D. Wilcox · Cadillac, US

Key dates

• Filing date: Apr 17, 2017
• Grant date: Jul 31, 2018
• Expiry date: Apr 17, 2037

Classification

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

Abstract

An electrode structure for use in an energy storage device comprising a population of electrodes, a population of counter-electrodes and a microporous separator separating members of the electrode population from members of the counter-electrode population. Each member of the electrode population comprises an electrode active material layer and an electrode current conductor layer, and each member of the electrode population has a bottom, a top, a length LE, a width WE and a height HE, wherein the ratio of LE to each of WE and HE is at least 5:1, the ratio of HE to WE is between 0.4:1 and 1000:1, and the electrode current collector layer of each member of the electrode population has a length LC that is measured in the same direction as and is at least 50% of length LE.