The object
Jeff Dahn co-invented positive-electrode materials used in lithium-ion cells for power tools, electric vehicles and grid storage, and his lab invented a high-precision lifetime tester. Canada's research council reports that his work affects nearly every part of lithium-ion battery research and helped demonstrate batteries capable of decades of use.
What Jeff did
Co-invented positive-electrode materials used in lithium-ion cells and a high-precision battery-lifetime tester.
Why it matters
NSERC links Dahn's inventions to lithium-ion cells used in power tools, grid storage and electric vehicles, as well as dramatically longer testing and service life.
Living-status check
Dalhousie's May 2024 Aurum Award profile identifies Dahn as professor emeritus and describes his continuing battery-lifetime research.