On the 6th of June, the first phase of the Longquan Energy Storage project was successfully connected to the grid. Located near Longquan, Zhejiang Province, China, the first phase has a capacity of 200MWh/100MW utilising WELION’s semi solid-state cells. This makes it the world’s first large scale BESS project using such technology.

World’s first large scale semi-solid state energy storage project connected to the grid

First large scale semi-solid-state deployment

The project, funded and constructed by Power China, a state-owned power company, has a total planned capacity of 400MWh/200MW, spread across a 40-acre site. The first phase, now connected to the grid, marks the initial large-scale use of WELION’s technology in energy storage. This project employs WELION’s LFP solid-liquid hybrid cells, which have an energy density of 165Wh/kg, cell capacity of 280Ah and are capable of 6,000 cycles.

Solid-state technology

Compared to traditional liquid lithium-ion batteries, solid-state technology offers …

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