Thanks for posting this Fran, It probably has wider significance than hydrogen storage.
Here is the patent which explains more than most patents and hinds at thermal anomalies https://patents.google.com/patent/US9960441B2/en Apparently, many experts were/are unaware of Kubas binding. From: Roarty, Francis X https://www.theengineer.co.uk/hydrogen-kubas-binding/
