Electrode structure and method for making same

US9577267B2 · kind B2 · utility

Assignees

• Sion Power Corporation · US
• BASF SE

Inventors

• Chariclea Scordilis-Kelley · Tucson, US
• Ruediger Schmidt · Paderborn, DE
• Holger Schneider · Ludwigshafen, DE
• Tracy Earl Kelley · Tucson, US
• Savannah V. Burnside-Joubert · San Jose, US
• Klaus Leitner · Feldkirch, AT
• Heino SOMMER · Rötteln, DE
• Jan Tomforde · Schifferstadt, DE
• Alexander Panchenko · Ludwigshafen, DE

Key dates

• Filing date: Jun 18, 2015
• Grant date: Feb 21, 2017
• Expiry date: Aug 18, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/10
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

Electrode structures and methods for making the same are generally described. In certain embodiments, the electrode structures can include a plurality of particles, wherein the particles comprise indentations relative to their convex hulls. As the particles are moved proximate to or in contact with one another, the indentations of the particles can define pores between the particles. In addition, when particles comprising indentations relative to their convex hulls are moved relative to each other, the presence of the indentations can ensure that complete contact does not result between the particles (i.e., that there remains some space between the particles) and that void volume is maintained within the bulk of the assembly. Accordingly, electrodes comprising particles with indentations relative to their convex hulls can be configured to withstand the application of a force to the electrode while substantially maintaining electrode void volume (and, therefore, performance). Particles having indentations relative to their convex hulls also occupy a relatively small volume, compared to spheres or other particles including boundaries that fill substantially all of their convex hulls,…