GAC Group’s energy storage subsidiary INPOW Battery presents new products at Intersolar Europe 2026 in Munich, marking its European debut. According to PR Newswire, INPOW introduces what it describes as the world’s first in-series, mass-produced 587Ah semi-solid-state energy storage cell. The company positions the cell as a semi-solid-state approach aimed at energy storage applications and highlights that it is already being manufactured at scale rather than only in prototype form. In addition to the 587Ah cell, INPOW Battery also showcases an associated liquid-cooled energy storage system referenced as 6.25MWh. Across the two reports, the common points are the timing and location of the exhibition, INPOW Battery’s ownership structure under the GAC Group, and the headline technical claims around the 587Ah semi-solid-state cell and its “mass-produced” status. The sources do not provide further performance metrics or independent verification within the provided text.