Patent ID: 9570748
Date: 2017-02-14
CPC Classifications: H01M,Y02E,Y02P,Y10T

Claim:
1. A high voltage lithium ion battery comprising; an anode; a cathode, the cathode comprising a lithium, manganese, nickel, and oxygen containing compound, wherein the lithium, manganese, nickel, and oxygen containing compound is provided as particles; an electrolyte disposed between the anode and the cathode; and, an ionic conducting protective layer deposited between the cathode and the electrolyte, the protective layer comprising lithium phosphorus oxynitride, and the protective layer is provided as a uniform coating from 0.5 to 10 nm on all sides of the of the particles prior to the electrode preparation, the coated particles being unannealed; the battery having capacity retention at 60° C.