System and methods of water electrolysis

Patent metadata

Field	Value
Publication number	US-2026015747-A1
Application number	US-202519326794-A
Country	US
Kind code	A1
Filing date	Sep 12, 2025
Priority date	Jul 19, 2018
Publication date	Jan 15, 2026
Grant date	—

Abstract

Provided herein are alkaline electrolyzer systems comprising one or more components that improve the performance, efficiency, and/or longevity of the system. For example, the alkaline electrolyzer system may comprise one or more of (1) a filtration component comprising one or more filtration media, (2) an ion exchange component comprising at least one ion exchange resin, (3) a corrosion inhibition component configured to introduce at least one corrosion inhibitor into the electrolyte solution, and (4) a chelating agent component configured to introduce at least one chelating agent into the electrolyte solution.

First claim

What is claimed is:

1 . A system for electrolyzing water, the system comprising:
a first electrode set comprising: a first bipolar plate electrically coupled to a first power source, and a first electrode disposed adjacent to the first bipolar plate and in electrical contact with the first bipolar plate; a diaphragm, wherein the first electrode is disposed adjacent to a first side of the diaphragm; a second electrode set comprising:
a second bipolar plate and a second electrode, wherein the second electrode is disposed adjacent to a second side of the diaphragm, the second side opposite the first side;
an electrolyte solution having a pH greater than 7; and a filtration component comprising one or more filtration media, wherein the system is configured to pass the electrolyte solution through the one or more filtration media.

2 . The system of claim 1 , wherein the system is configured to pass the electrolyte solution through one or more filtration media arranged in series.

3 . The system of claim 1 , wherein the system is configured to pass the electrolyte solution through one or more filtration media arranged in parallel.

4 . The system of claim 1 , wherein the filtration component comprises a dynamic filtration system comprising one or more of: a high-capacity filter module, an automated backwashing system, an integrated ultrasonic cleaning transducer, and a real-time monitoring and control system.

5 . The system of claim 1 , wherein the filtration component comprises at least one ultrasonic transducer integrated into a filter housing associated with one of said filtration media, and wherein the ultrasonic transducer is adjustable with respect to both frequency and output, a frequency of the ultrasonic transducer being adjustable within a range of about 20 kHz to about 40 kHz.

6 . The system of claim 1 , wherein the filtration component utilizes AI-based algorithms for predictive maintenance, wherein said algorithms are configured to adjust cleaning cycles based on real-time data and historical trends.

7 . The system of claim 1 , wherein at least one of the filtration media comprises an electrostatic coating including a polymer infused with high dielectric constant antistatic agents or conductive nanoparticles.

8 . The system of claim 7 , wherein the electrostatic coating comprises a polymer infused with TiO 2 or ZnO nanoparticles.

9 . The system of claim 1 , wherein the filtration component is configured to periodically release passivating agents into the electrolyte solution.

10 . The system of claim 1 , wherein the filtration component comprises a robotic mechanism for automatic filter cartridge replacement.

11 . A system for electrolyzing water, the system comprising:
a first electrode set comprising:
a first bipolar plate electrically coupled to a first power source, and a first electrode disposed adjacent to the first bipolar plate and in electrical contact with the first bipolar plate;
a diaphragm, wherein the first electrode is disposed adjacent to a first side of the diaphragm;
a second electrode set comprising:
a second bipolar plate and a second electrode, wherein the second electrode is disposed adjacent to a second side of the diaphragm, the second side opposite the first side;
an electrolyte solution having a pH greater than 7; and
an ion exchange component comprising at least one ion exchange resin, wherein the system is configured to pass the electrolyte solution through the at least one ion exchange resin.

12 . The system of claim 11 , wherein the ion exchange component comprises at least one multifunctional smart resin that removes cationic and anionic impurities, the at least one multifunctional smart resin comprising catalytic nanoparticles embedded on resin beads.

13 . The system of claim 11 , wherein the ion exchange component comprises at least one ion exchange resin that changes color or conductivity in response to a level of ion saturation within the at least one ion exchange resin.

14 . The system of claim 11 , wherein the ion exchange component comprises one or more micro-sensors embedded within the at least one ion exchange resin, wherein said micro-sensors monitor at least one of (a) an ion concentration in the electrolyte solution or (b) a level of ion saturation within the at least one ion exchange resin.

15 . The system of claim 11 , wherein the ion exchange component comprises one or more mechanisms for chemical or electrochemical self-regeneration of the at least one ion exchange resin.

16 . The system of claim 15 , wherein the ion exchange component comprises a mechanism for introducing a mild acid or reducing agent into the electrolyte solution.

17 . The system of claim 11 , wherein the ion exchange component comprises an electrochemical cell embedded within the at least one ion exchange resin, the electrochemical cell configured to periodically alternate between a low voltage cathodic cycle and a low voltage anodic cycle.

18 . The system of claim 11 , wherein the ion exchange component comprises at least one ion exchange resin comprising a crosslinked polystyrene-divinylbenzene (PS-DVB) matrix.

19 . The system of claim 18 , wherein the ion exchange resin comprises at least one inorganic filler selected from the group consisting of zirconia nanoparticles and titania nanoparticles.

20 . A system for electrolyzing water, the system comprising:
a first electrode set comprising: a first bipolar plate electrically coupled to a first power source, and a first electrode disposed adjacent to the first bipolar plate and in electrical contact with the first bipolar plate; a diaphragm, wherein the first electrode is disposed adjacent to a first side of the diaphragm; a second electrode set comprising:
a second bipolar plate and a second electrode, wherein the second electrode is disposed adjacent to a second side of the diaphragm, the second side opposite the first side;
an electrolyte solution having a pH greater than 7; and
a corrosion inhibition component configured to introduce at least one corrosion inhibitor into the electrolyte solution.

Assignees

• Schlumberger Technology Corp

Inventors

• Cabello Carramolino Gema
• Ho Man Yi
• Zhang Wenlin
• Lavrut Eric
• Nelson Alan

Classifications

• C02F1/42

  by ion-exchange (ion-exchange in general B01J) · CPC title

• C02F2303/16

  Regeneration of sorbents, filters · CPC title

• C02F2305/08

  Nanoparticles or nanotubes · CPC title

• C02F1/004

  using large scale industrial sized filters · CPC title

• C02F2303/08

  Corrosion inhibition · CPC title