Chinese battery maker Great Power said it signed a “milestone” demonstration project agreement for a 5 MW/10 MWh sodium-ion battery energy storage power station with Qingdao Beian Holdings and Noan Technology Co.
It claimed this is north China’s first large-scale commercial application of sodium-ion batteries in energy storage power stations. It marks the commercialisation of Great Power’s sodium-ion batteries and said it is “a milestone in the sodium-ion battery industry.”
The project is at Qingdao North Coast Data Centre (QNCDC). Great Power said it is the first application of sodium-ion batteries in new energy storage and big data centre infrastructure.
Great Power’s sodium-ion batteries have a combined strategy of layered oxide and polyanion systems, which, it claimed, has achieved multiple technology innovations and breakthroughs.
The company said the polyanion systems have created a highly stable system and the sodium-ion batteries last more than 6,000 cycles. For the layered oxide system, a high-voltage system has been developed to increase the energy density to 150 Wh/kg. The cycle life reaches up to 3,000 cycles.
It began its sodium-ion research three years ago and claims to have completed serial trial production and sample testing of small cylindrical, large cylindrical and prismatic sodium-ion battery cells in 2022. It has filed patents and published research papers.
The company’s solution enables the construction and application of sodium-ion batteries in the new power load management system, it said. It claimed the project will effectively reduce the operation cost level of the data centre and help regulate the power grid.
The company said: “The collaboration between Great Power and Qingdao Beian Holdings in the sodium-ion battery energy storage station project not only accelerates the industrialisation process of sodium-ion batteries but also empowers the construction of a new type of computing power infrastructure integrating the Qingdao Smart Grid and cloud computing.”
Photo: Li Xingxin, Chairman of Qingdao Beian Holdings, and Wang Xiangrong, CTO of Great Power, signing the demonstration project agreement