Tech Briefs Magazine - May 2022 - BET-23

The team is currently developing
higher-performance battery materials
and plans to integrate them into the
newly developed lithium-air battery
with the aim of greatly increasing the
battery's cycle life. The team then plans
to expedite efforts to put the battery
into practical use at the NIMS-SoftBank
Advanced Technologies Development
Center.
This project was carried out by a research
team led by Shoichi Matsuda
(Senior Researcher, NIMS), Manai Ono
(Postdoctoral Researcher, NIMS), Shoji
Yamaguchi (Specialist Staff, NIMS) and
Kohei Uosaki (Research Fellow, NIMS;
also Director, NIMS-SoftBank Advanced
Technologies Development Center). This
work was mainly supported by the JST
ALCA-SPRING program and the NIMSSoftBank
Advanced
Technologies
Development Center.
Lithium-air batteries have the potential
to be the ultimate rechargeable
batteries: They are lightweight and
high capacity, with theoretical energy
densities several times that of currently
available lithium-ion batteries.
Because of these potential advantages,
they may find use in a wide range of
technologies, such as drones, electric
vehicles,
and
household
electricity
storage systems.
For more information, contact Shoichi
Matsuda at Matsuda.Shoichi@nims.go.jp;
81-29-860-4637.
Hydropower Technology Swaps Dams with Electric
Trucks
Electric trucks could provide a clean solution for electricity generation in mountainous regions.
International Institute for Applied Systems Analysis, Laxenburg, Austria
Charge site
Charge site
Grid
connection
Discharge site
Road slope gradient
Schematic description of the system where the empty truck moves up the mountain to collect the containers filled with water at the charge
site and the truck with the full container goes down the mountain generating electricity. The water is then unloaded at the discharge site.
(Photo: IIASA)
I
n steep mountain regions, the potential
for generating electricity from a
small stream of water is high, however,
the hydropower potential of these regions
remains untapped as it requires
storage reservoirs, which have environmental
and social impacts. International
Institute for Applied Systems Analysis
(IIASA) researcher Julian Hunt and an international
team of researchers developed
a new technology called Electric
Truck Hydropower that could become a
key method for electricity generation in
steep mountainous regions. The results
Battery & Electrification Technology, May 2022
of the study have been published in the
Energy Journal.
Electric Truck Hydropower would use
the existing road infrastructure to transport
water down the mountain in containers,
applying
the regenerative
brakes of the electric truck to turn the
potential energy of the water into electricity
and charge the truck's battery.
The generated energy could then be
sold to the grid or used by the truck itself
to transport other goods. Electric
Truck Hydropower could also generate
electricity in
combination with solar
and wind resources or provide energy
storage services to the grid.
The proposed technology is a clean
source of electricity that is competitive
with solar, wind, and conventional hydropower.
Cost estimates show that the
levelized cost of Electric Truck Hydropower
is $30-100 per MWh, which is
considerably cheaper than conventional
hydropower at $50-200 per MWh. The
environmental impacts of Electric Truck
Hydropower are also significantly
smaller than that of conventional hydropower.
23
BET
Tech Briefs 0522_1.indd 23
Cov
ToC
4/19/22 2:22 PM
Road
River
http://info.hotims.com/82321-809

Tech Briefs Magazine - May 2022

Table of Contents for the Digital Edition of Tech Briefs Magazine - May 2022

Tech Briefs Magazine - May 2022 - Intro
Tech Briefs Magazine - May 2022 - Sponsor
Tech Briefs Magazine - May 2022 - Cov1
Tech Briefs Magazine - May 2022 - Cov2
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Tech Briefs Magazine - May 2022 - Cov3
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Tech Briefs Magazine - May 2022 - PIT-Cov1
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Tech Briefs Magazine - May 2022 - PIT-Cov3
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Tech Briefs Magazine - May 2022 - BET-Cov1a
Tech Briefs Magazine - May 2022 - BET-Cov1b
Tech Briefs Magazine - May 2022 - BET-Cov1
Tech Briefs Magazine - May 2022 - BET-Cov2
Tech Briefs Magazine - May 2022 - BET-1
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Tech Briefs Magazine - May 2022 - BET-Cov3
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