An electronic device employs a seal member to seal a battery pack to a housing member to prevent contaminants from entering into a battery bay. The coded data pattern encodes a plurality of Reed-Solomon symbols defining tag data and an orientation of a layout of the tag data. The device includes a containment layer formed over the active material that prevents escape of volatilized matter from the active material when the device is exposed to high temperatures during fabrication or operation. The invention further relates to novel polyamino acid ligands incorporating ligand structures additional to EDTA and DTPA. The invention also relates to an aqueous ink that comprises at least one colorant of Formula 1:wherein A represents an aromatic or heteroaromatic ring, and A can be bonded to other rings that can be aromatic, aliphatic or heterocyclic, and an ink printing method using the colorant-containing ink.