SUBIACO: Altech Batteries Limited (ASX: ATC) has announced a binding agreement to acquire additional stakes in the CERENERGY® and Silumina Anodes™ projects from Altech Advanced Materials AG (AAM). The deal, valued at approximately A$23.3 million, will see Altech increase its ownership to 75% in the CERENERGY® project and 100% in the Silumina Anodes™ project. Under…