Forming electrochromic stacks using at most one metallic lithium deposition station

US11703737B2 · kind B2 · utility

Assignee

• SAGE Electrochromics, Inc. · US

Inventors

• Paul Mogensen · Chantilly, FR
• Wen Li · Lakeville, US
• Jean-Christophe Giron · Aachen, DE
• Nicolas Antoine Mercadier · Paris, FR

Key dates

• Filing date: Feb 10, 2021
• Grant date: Jul 18, 2023
• Expiry date: Jul 1, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F1/1524
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

The present disclosure describes various processes of forming an electrochromic stack using at most one metallic lithium deposition station. In some aspects, a process may include depositing metallic lithium only within an electrochromic counter-electrode of an electrochromic stack. In some aspects, a process may include using a lithium-containing ceramic counter-electrode target to form an electrochromic counter-electrode and depositing metallic lithium only within or above an electrochromic electrode of the electrochromic stack. In some embodiments, a process may include using a lithium-containing ceramic electrode target, and optionally additionally depositing metallic lithium to add mobile lithium to the electrochromic stack. In some embodiments, a process may include using a single metallic lithium deposition station to deposit metallic lithium between an ion-conducting layer and an electrochromic electrode of the electrochromic stack.