Gregory T. Donaldson is a notable inventor based in Sterling Heights, MI (US). He has made significant contributions to the fields of battery technology and waterproofing coatings. With a total of 6 patents to his name, Donaldson continues to push the boundaries of innovation.

Latest Patents

Among his latest patents, Donaldson has developed a secondary lithium-ion battery and lithium capacitor electrode compositions. This electrode material is designed as a dry in-place deposit, which includes at least one metal chelating polymer, an active material capable of reversibly intercalating lithium ions, a plurality of electrical conductor particles, and a binder polymer. The electrode material is created into a slurry using a non-aqueous solvent. The metal chelating polymer may be a reaction product of a polyphenolic polymer, an aldehyde, a ketone, or mixtures thereof, along with an amine. This innovative electrode material is deposited on a current collector and dried to form a positive electrode in a secondary lithium-ion battery. The resulting material exhibits high flexibility, strong adhesion to the current collector, resistance to electrolyte damage, and low electrical resistance. This electrode material provides a superior positive electrode at a relatively low additional cost and without increasing process complexity.

Another significant patent involves coatings for waterproofing electronic components. This circuit board waterproofing coating composition includes at least one passivating agent, preferably containing a molecule with a thio-functional group, such as a thiol group, an azolic moiety, or an azole, along with combinations thereof. It also comprises at least one binder component made of an organic or inorganic film-forming polymer, and/or one or more polymer precursors that can polymerize on a substrate surface. Additionally, the composition may include one or more additives. The patent also outlines methods for making and using the coating composition, as well as the coated circuit boards.

Career Highlights

Gregory T. Donaldson is currently employed at Henkel AG & Company, KGaA, where he applies his expertise in developing innovative materials. His work has significantly impacted the industry, particularly in enhancing the performance and reliability of electronic components.

Collaborations

Donaldson has collaborated with notable colleagues, including John D. McGee and John L. Zimmerman, contributing to various projects

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