ETA 2021 Strategic Plan - Flipbook - Page 20
All the proposed energy storage technologies
are expected to be cost-competitive for longduration applications and store electrical or
thermal energy for more than 10 hours of
continuous discharge at rated power (E/P>10).
The technology must be portable and not be
geographically constrained. Additionally, it
should maintain many of the advantages that
make Li-ion batteries attractive. Specifically, the
technology must have a calculated round-trip
efficiency of at least 50%. Electricity must be
the primary source of energy into the proposed
storage technology, and the technology cannot
be single use (e.g., alkaline batteries, fuels for
combustion). Energy provided by the storage
technology can be electrical or thermal, however,
the temperature of the thermal energy must
be high enough to power a heat engine with an
overall system efficiency of 50%. Furthermore,
all the technologies must be safe enough to be
deployed near consumers and be at least as safe
as Li-ion batteries that are deployed in homes, if
not more.
ETA will bring its unique capabilities and
Berkeley Lab’s expertise in basic sciences
to this initiative as it focuses on advancing
Electrochemical, Chemical, and Thermal energy
storage technologies.
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Electrochemical Energy Storage
The strength of Berkeley Lab and ETA in
synthesis, characterization, and testing offers
an opportunity to create new cathode materials
that match or exceed the energy density of
current Li-ion cathodes but can be produced
from less constrained transition metals such
as iron, manganese, vanadium, titanium, or
molybdenum. The metals precursor cost for
such cathodes will be
