Long cycle-life alkali metal battery
AssigneeRamot University Authority for Applied Research and Industrial Development Ltd.
InventorsEmanuel Peled, Diana Golodnitsky, Ela Strauss
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Abstract
The present invention provides a cathode for use in a secondary electrochemical cell, such cathode being coated with a very thin, protective film, permeable to ions. The protective film of the cathode usually has a thickness of up to about 0.1 μm and it provides protection against high voltage charging and overdiscbarging. The present invention further provides a secondary electrochemical cell comprising such a cathode.
Claims21
A cathode for use in a secondary electrochemical cell, comprising up to about 95 volume-% of electrochemically active material, characterized in that the cathode is coated, after being assembled, by a thin, ion-permeable, electronically non-conductive protective film of a thickness of up to about 0.1 μm.
Dependencies are inferred from the claim text.