Lithium ions cell designs with high capacity anode materials and high cell capacities

US11387440B2 · kind B2 · utility

Assignee

• Zenlabs Energy, Inc. · US

Inventors

• Charan Masarapu · Fremont, US
• Yogesh Kumar Anguchamy · Newark, US
• Yongbong Han · San Francisco, US
• Haixia Deng · Woodridge, US
• Sujeet Kumar · Fremont, US
• Herman A. Lopez · San Jose, US

Key dates

• Filing date: May 18, 2020
• Grant date: Jul 12, 2022
• Expiry date: May 18, 2040

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/70
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

Improved high energy capacity designs for lithium ion batteries are described that take advantage of the properties of high specific capacity anode active compositions and high specific capacity cathode active compositions. In particular, specific electrode designs provide for achieving very high energy densities. Furthermore, the complex behavior of the active materials is used advantageously in a radical electrode balancing design that significantly reduced wasted electrode capacity in either electrode when cycling under realistic conditions of moderate to high discharge rates and/or over a reduced depth of discharge.