Alkaline electrochemical cell with improved anode and separator components

US11264607B2 · kind B2 · utility

Assignee

• ENERGIZER BRANDS, LLC · US

Inventors

• M. Edgar Armacanqui · Madison, US
• Andrew J. Roszkowski · Waunakee, US
• Casey Imhoff · Middleton, US
• Donald Raymond Crowe · Middleton, US
• Matthew Evans · Stoughton, US
• John Hadley · Madison, US
• Matthew Hennek · Stoughton, US
• Tim F. Turba · Neenah, US
• Enqing Zhu · Verona, US

Key dates

• Filing date: Jun 19, 2017
• Grant date: Mar 1, 2022
• Expiry date: Dec 23, 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 alkaline electrochemical cell includes a cathode, an anode which includes an anode active material, and a non-conductive separator disposed between the cathode and the anode, wherein from about 20% to about 50% by weight of the anode active material relative to a total amount of anode active material has a particle size of less than about 75 μm, and wherein the separator includes a unitary, cylindrical configuration having an open end, a side wall, and integrally formed closed end disposed distally to the open end.