Lithium Hydrogen Battery - Energy Storage System For Both Hydrogen and Electricity

Lithium Hydrogen battery or actually producing hydrogen through controlled lithium-water reaction/battery. 

Claims made by Haoshen Zhou (Leader) and Yonggang Wang (Post-Doctoral Research Scientist) of Energy Interface Technology Group, the Energy Technology Research Institute of the National Institute of Advanced Industrial Science and Technology (AIST):

"We have now developed a new concept of producing both hydrogen and electricity by stably controlled reactions using metallic lithium as the negative electrode and carbon as the positive electrode, with a hybrid electrolyte (a combination of an organic electrolyte, a solid electrolyte, and an aqueous electrolyte) (see Figure). We have succeeded in the substantiation of the concept with this system, which allows as much clean hydrogen to be produced as needed and when needed, while generating electricity from electrical discharge from the electrochemical reactions."

Lithium-Water Reaction and Hydrogen Production

Controlled Lithium-Water Reaction to Produce Hydrogen

They said that the amount of hydrogen the device currently produce is around 230 ┬Ámol h-1 per one square centimeter of positive electrode surface.

The lithium-water battery produces both electricity and hydrogen and can be regenerated by recharging and is therefore can be utilized as energy storage system of both electricity and hydrogen on demand.

Lithium-water battery from PolyPlus. Also called Lithium-Air

Lithium-Water Battery or Lithium Air
Lithium Air Battery Schematic

At the moment, hydrogen production with such system is still on laboratory scale. The researchers included in their study on finding suitable applications of the device to contribute to the quest for effective and efficient hydrogen generation technology of the future.

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