No news or movement4 Jan 2024 08:16
Its not the battery that DGI produce, it is the anode,which is MUCH more a leap forward. From the prospectus "Enhanced Battery Technology
DG Innovate’s EBT is a recyclable battery cell utilising abundant sodium-ion and offering similar energy
density to incumbent technologies delivered at a lower cost and with less environmental impact. DG
Innovate is working on improving energy density in the electrode through continued refinement of their
proprietary methods.
DG Innovate’s core anode technology is based on its underlying materials development work. DG Innovate
is working on processing an abundant source of biowaste, which currently goes to landfill, and has
negative equivalent CO2 emissions, through what DG Innovate believes is a novel low energy processing
methodology to synthesise a material for electrodes which provides superior performance to currently
available materials. This provides for advances in high-energy density capacitors and high capacity sodium
cells.
These advances are also being incorporated into hybrid energy storage systems (HESS) aimed at
combining the attributes of higher power and energy density along with improved cyclability over current
battery technology.
DG Innovate’s thesis is that sodium-ion represents a cleaner and cheaper solution to existing lithiumion
and lead acid cells, given the global abundance of sodium, its lack of toxicity and sustainable
extraction techniques. In addition, the removal of additional rare earth metals such as cobalt (used in
lithium-ion cathodes) from the battery further adds to EBT’s green credentials. It removes the potentially
environmentally unsound extraction and processing techniques associated with both lithium and cobalt
from the supply chain. It also removes the large carbon footprint associated with processing the lithium-ion
anode graphite, which is derived by burning petroleum pitch, itself a by-product of processing fossil fuels.
Sodium-ion is broadly regarded as more suitable for stationary energy storage, including solar and wind
energy capture, given the increased weight of sodium over lithium. DG Innovate has identified significant
opportunity in this market, where its technology can offer cost, safety and environmental benefits over
lithium. However, sodium-ion cells have exceeded the storage density of lead acid batteries by a factor of
four times and have achieved the equivalent of lithium ion phosphate battery performance of 140Whr/kg,
opening up the potential for displacement of lithium-ion in electric vehicles where lithium-ion currently has
almost 100% market share.
DG Innovate is also developing high-capacity advanced composite materials which it believes can take
sodium-ion beyond 200Wh/kg to compete with NMC and NCA based lithium-ion cells."
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