Water softening intercalation materials

US12381287B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Münir M. BESLI · San Jose, US
• Saravanan Kuppan · Singapore, SG
• Vikram Pande · San Jose, US
• Sondra Hellstrom · East Palo Alto, US
• Jake CHRISTENSEN · Elk Grove, US

Key dates

• Filing date: Aug 18, 2021
• Grant date: Aug 5, 2025
• Expiry date: Dec 31, 2043

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C02F2201/46115
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

An electrode for use in a device configured to remove ions from a solution. The electrode includes an intercalation material including a binary transition metal Prussian blue analogue compound, a ternary transition metal Prussian blue analogue compound, or a combination thereof. The binary compound may have a general formula: AxByCz[Fe(CN)6], where A=Li, Na, or K; B=Mn, Fe, Ni, Cu, or Zn; C=Mn, Fe, Ni, Cu, or Zn; 0≤x≤1; 0≤y≤1; and 0≤z≤1. The ternary compound may have the general formula: AxByCzDw[Fe(CN)6], where A=Li, Na, or K; B=Mn, Fe, Ni, Cu, or Zn; C=Mn, Fe, Ni, Cu, or Zn; D=Mn, Fe, Ni, Cu, or Zn; 0≤x≤1; 0≤y≤1; 0≤z≤1; 0≤w≤1.