The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 30, 2024

Filed:

Oct. 02, 2019
Applicant:

Robert Bosch Gmbh, Stuttgart, DE;

Inventors:

Mordechai C. Kornbluth, Brighton, MA (US);

Jonathan Mailoa, Cambridge, MA (US);

Soo Kim, Cambridge, MA (US);

Georgy Samsonidze, San Francisco, CA (US);

Boris Kozinsky, Waban, MA (US);

Saravanan Kuppan, Sunnyvale, CA (US);

Sondra Hellstrom, East Palo Alto, CA (US);

Nathan Craig, Burlingame, CA (US);

Assignee:

Robert Bosch GmbH, Stuttgart, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25B 11/00 (2021.01); C02F 1/461 (2023.01); C02F 5/00 (2023.01); C02F 1/46 (2023.01);
U.S. Cl.
CPC ...
C02F 1/46109 (2013.01); C02F 1/4602 (2013.01); C02F 5/00 (2013.01); C02F 2001/46133 (2013.01);
Abstract

A water softening device includes a container configured to contain water, first and second electrodes arranged in fluid communication with the water, and a power source. The first electrode includes a conversion material that has a first composition and a second composition coexisting with the first composition. The first composition includes calcium ions bonded thereto and the second composition includes sodium ions bonded thereto. The power source supplies current in a first operating state such that the second composition exchanges sodium ions for calcium ions in the water to generate a soft water solution. The first and second electrodes are connected in a second operating state such that the first composition exchanges calcium ions for sodium ions in the water to generate a wastewater solution. The conversion material undergoes a reversible conversion reaction to convert between the first and second compositions within the water stability window.


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