Negative electrodes for electrochemical cells

US11552290B2 · kind B2 · utility

Assignee

• FORM ENERGY, INC. · US

Inventors

• Rupak CHAKRABORTY · Brookline, US
• Jarrod David MILSHTEIN · Cambridge, US
• Eric Weber · Pittsburgh, US
• William Henry WOODFORD · Cambridge, US
• Yet-Ming Chiang · Weston, US
• Ian Salmon McKay · San Jose, US
• Liang Su · Medfield, US
• Jay Whitacre · Pittsburgh, US
• Theodore Alan Wiley · Somerville, US
• Kristen Carlisle · Medford, US
• Mitchell Terrance WESTWOOD · Boston, US
• Rachel Elizabeth MUMMA · Somerville, US
• Max Chu · Taipei, TW
• Amelie Nina KHAREY · Cambridge, US
• Benjamin Thomas HULTMAN · Somerville, US
• Marco Ferrara · Boston, US
• Mateo Cristian Jaramillo · San Francisco, US
• Isabella CARUSO · Cambridge, US
• Jocelyn Marie NEWHOUSE · Somerville, US

Key dates

• Filing date: Jul 26, 2019
• Grant date: Jan 10, 2023
• Expiry date: Feb 23, 2040

Classification

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

Abstract

Various embodiments provide a battery, a bulk energy storage system including the battery, and/or a method of operating the bulk energy storage system including the battery. In various embodiment, the battery may include a first electrode, an electrolyte, and a second electrode, wherein one or both of the first electrode and the second electrode comprises direct reduced iron (“DRI”). In various embodiments, the DRI may be in the form of pellets. In various embodiments, the pellets may comprise at least about 60 wt % iron by elemental mass, based on the total mass of the pellets. In various embodiments, one or both of the first electrode and the second electrode comprises from about 60% to about 90% iron and from about 1% to about 40% of a component comprising one or more of the materials selected from the group of SiO2, Al2O3, MgO, CaO, and TiO2.