From pv magazine ESS news place
BASF Stationary Energy Storage, a subsidiary of chemical company BASF, and Japanese ceramics manufacturer NGK Insulators have launched a new version of their sodium sulfur batteries (NAS).
The containerized NAS Model L24 battery, jointly developed by the partners, whose collaboration began in 2019, features a number of technological improvements. Compared to the previously available battery type, the new NAS battery features a significantly lower degradation rate of less than 1% per year due to reduced corrosion in battery cells.
Another technical achievement is an improved thermal management system in battery modules, which allows longer continuous discharge. For example, in the case of discharging with 200 kW-dc per NAS Model L24 unit, the continuous discharge duration is six hours.
The new technology elements are incorporated into the field-proven battery design. NAS batteries were implemented virtually for the first time in the world by NGK and have since been installed at more than 250 locations worldwide, with a total capacity of more than 720 MW and a total installed capacity of approximately 5 GWh.
Like the previous version, the new concept complies with the latest safety standards for energy storage installations, such as UL1973 and UL9540A.
To read further, visit our new ESS news website.
This content is copyrighted and may not be reused. If you would like to collaborate with us and reuse some of our content, please contact: editors@pv-magazine.com.
