Electrospinning for integrated separator for lithium-ion batteries

US9871240B2 · kind B2 · utility

Assignee

• Applied Materials, Inc. · US

Inventors

• Mahendra C. ORILALL · Downingtown, US
• Raman Talwar · Palo Alto, US
• Karl M. Brown · Mountain View, US
• Lu Yang · Fremont, US
• Hooman Bolandi · San Jose, US
• Victor Pebenito · San Jose, US
• Connie P. Wang · Irvine, US
• Robert Z. Bachrach · Burlingame, US

Key dates

• Filing date: Jun 22, 2015
• Grant date: Jan 16, 2018
• Expiry date: Apr 4, 2036

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 the present invention relate generally to lithium-ion batteries, and more specifically, to batteries having integrated separators and methods of fabricating such batteries. In one embodiment, a lithium-ion battery having an electrode structure is provided. The lithium-ion battery comprises an anode stack, a cathode stack, and a porous electrospun polymer separator comprising a nano-fiber backbone structure. The anode stack comprises an anodic current collector and an anode structure formed over a first surface of the anodic current collector. The cathode stack comprises a cathodic current collector and a cathode structure formed over a first surface of the cathodic current collector. The porous electrospun polymer separator is positioned between the anode structure and the cathode structure.