I Googled Cold Fusion and found this:

The lithium nuclei would rapidly decay, first into beryllium and then into helium, and emit radiation. Finally, the film of electrons would absorb the radiation and reemit it as heat. Widom and Larsen called this chain of events a low-energy nuclear reaction, or LENR—a more accurate and palatable term than cold fusion.

Seems like a very expensive nuclear process to make it happen but even if it is, it's a great achievement. Great hunt.