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Toshiba Energy Systems & Solutions Corporation

Research and development

Top Page > Hydrogen Energy > Research and development > Research & development towards low-carbon society of next generation

Research and development toward a next-generation hydrogen society

  • Alkaline water electrolysis type hydrogen production equipment Alkaline water electrolysis type hydrogen production equipment
    Alkaline water electrolysis type hydrogen production equipment
  • Converting wind energy and sunlight energy into hydrogen
    Converting wind energy and sunlight energy into hydrogen
  • Hydrogen can be produced in cold districts
    Hydrogen can be produced in cold districts
  • Convert geothermal energy to hydrogen
    Convert geothermal energy to hydrogen

Toshiba is conducting research and development aimed at realizing a next-generation hydrogen society and is striving to improve the economic efficiency of each phase of the production, storage, and use of hydrogen.

Development of a hydrogen generator

Large Alkaline Water Electrolysis Hydrogen Production System

Recent years have brought increasing opportunities to use hydrogen in stationary fuel cells, fuel cell vehicles, hydrogen power generation, and other applications. And forecasts point to further increases in the production and utilization of hydrogen in hydrogen stations. In response to the requirements of varied and large-scale applications, Toshiba is striving to develop technologies that achieve higher efficiency while saving space. An example of this is the Alkaline Water Electrolysis Hydrogen Production System (AEC), which Toshiba has developed as an ideal solution for larger scale applications.

Development of hydrogen generator

Because its electrode substrate does not contain noble metals, the Alkaline Water Electrolysis Hydrogen Production System is cheaper than other methods which use noble metals--making it ideal for large-scale applications. This system can produce 100Nm3 of hydrogen per hour, which is enough to power two fuel cell vehicles. This mass production system can be used in various applications involving hydrogen, such as stationary fuel cells, fuel cell vehicles, and hydrogen generation.

 
Alkaline water electrolysis type hydrogen production equipment
             

By combining Toshiba's rectifier and hydrogen purification technologies with electrolysis, we have succeeded in optimizing energy efficiency across the board for less cost--even for larger scale equipment. This system can be packaged within a shipping container or configured to fit within the constraints of a factory. Furthermore, it can be operated in cold locations because its highly-concentrated KOH electrolyte does not freeze at sub-zero temperatures.

           

Producing hydrogen even in cold locations

            

Because its highly-concentrated KOH electrolyte does not freeze at sub-zero temperatures, Toshiba's system can be operated in cold locations.

 
 
Producing hydrogen even in cold locations
 

R&D of technologies that enable large scale storage of hydrogen (SOEC)

Hydrogen energy storage system
           

Hydrogen energy storage system

   

Our hydrogen storage system, H2Omega™, employs SOFC※1 and SOEC※2, which utilize excess heat from power generation to produce hydrogen, enabling highly efficient charge and discharge cycles. A system with 5 MW of grid power and 32 MWh of storage capacity can supply 10,000 households with electricity for eight hours.

      

※1 SOFC: Solid Oxide Fuel Cell
※2 SOEC: Solid Oxide Electrolysis Cell

  

SOEC: Solid Oxide Electrolysis Cell※2

      

Toshiba has been working hard on the development of a next-generation water electrolyzer called SOEC for producing large quantities of high-quality hydrogen※3. SOEC achieves approximately 30% higher efficiency and lower power consumption than conventional polymer electrolyte cells.

      

※2 SOEC: Solid Oxide Electrolysis Cell
※3 This development incorporates outcomes from 2014 NEDO research.

SOEC cell stack structure

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