Zinc Hybrid Cathode Batteries
Zinc Hybrid Cathode state of battery technology
These are made by a company, Eos who started out trying to make a Zinc-air battery, but could not get the technology to work.
A 1GW installation of their Zinc Hybrid Cathode batteries was announced in 2020.
The zinc-based grid battery – called “Zynth” battery – is described on the Eos website as a zinc aqueous hybrid cathode battery storage system.
There is little technical information on their website, but Eos claims:
- 3-12 hours discharge.
- Immediate response.
- 100% depth of discharge
- Wide operating temperature range: -25oC to 40oC.
- 20 foot modular blocks (TEUs), stackable up to 10MW
- Convection cooled for installation in the open
- 1MW, 4 MWh units
- 75% round trip efficiency
- 10,000 cycle lifetime
References / external websites:
Eos
https://eosenergystorage.com/products-technology/
News article about a 1GW installation of Zinc Hybrid Cathode batteries