Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 15, 2022
Patent Application Number
16291617
Date Filed
March 4, 2019
Patent Citations
Patent Citations Received
Patent Primary Examiner
Patent abstract
The epsilon polymorph of vanadyl phosphate, ε-VOPO4, made from the solvothermally synthesized H2VOPO4, is a high density cathode material for lithium-ion batteries optimized to reversibly intercalate two Li-ions to reach the full theoretical capacity at least 50 cycles with a coulombic efficiency of 98%. This material adopts a stable 3D tunnel structure and can extract two Li-ions per vanadium ion, giving a theoretical capacity of 305 mAh/g, with an upper charge/discharge plateau at around 4.0 V, and one lower at around 2.5 V.
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