Multi-part nontoxic printed batteries

US11555799B2 · kind B2 · utility

Assignee

• LYTEN, INC. · US

Inventors

• Bruce Lanning · Littleton, US
• Michael W. Stowell · Sunnyvale, US
• Carlos Montalvo · Cambria, US
• Daniel Cook · Woodside, US
• Sung H. Lim · Mountain View, US
• Shriyukta Singh · Sunnyvale, US
• John Chmiola · San Francisco, US

Key dates

• Filing date: Jan 10, 2020
• Grant date: Jan 17, 2023
• Expiry date: Mar 2, 2041

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/10
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A battery system comprising: an anode composed of a non-toxic biocompatible metal; a first printable carbon-based current collector comprising biocompatible multiple few layer graphene (FLG) sheets in electrical contact with and extending from the anode; a three-dimensional (3D) hierarchical mesoporous carbon-based cathode including an open porous structure configured to catalyze an active material via gas diffusion; a polymer-based barrier film deposited on the 3D hierarchical mesoporous carbon-based cathode, the polymer-based barrier film configured to prevent oxygen from entering the open porous structure while deposited on the 3D hierarchical mesoporous carbon-based cathode; a second printable carbon-based current collector comprising biocompatible multiple few layer graphene (FLG) sheets in electrical contact with and extending from the cathode; and an electrolyte layer disposed between the anode and the cathode, the electrolyte layer configured to activate the battery system when released into one or both of the anode and the cathode.