N-OXIDE REDOX SHUTTLES FOR RECHARGEABLE LITHIUM-ION CELL

摘要

A rechargeable lithium-ion cell (10) contains a positive electrode (12), negative electrode (14), charge carrying electrolyte containing charge carrying medium and lithium salt, and cycloaliphatic N-oxide compound dissolved in or dissolvable in the electrolyte. The N-oxide compound has an oxidation potential above the positive electrode recharged potential and serves as a cyclable redox chemical shuttle providing cell overcharge protection.