Battery with spinel cathode
AssigneeNano One Materials Corp.
InventorsStephen A. Campbell, Perry Juric, Farhang Nesvaderani
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Abstract
Provided is an improved method for forming a battery comprising a cathode and electrolyte. The method of forming the cathode comprises forming a first solution comprising a digestible feedstock of a first metal suitable for formation of a cathode oxide precursor and a multi-carboxylic acid. The digestible feedstock is digested to form a first metal salt in solution wherein the first metal salt precipitates as a salt of deprotonated multi-carboxylic acid thereby forming an oxide precursor and a coating metal is added to the oxide precursor. The oxide precursor is heated to form the coated lithium ion cathode material. The electrolyte is void of salts and additives.
Claims95
A method of forming a battery comprising:
- forming a coated lithium ion cathode material comprising:
- in one pot;
- forming a first solution comprising a digestible feedstock of a first metal suitable for formation of a cathode oxide precursor and a multi-carboxylic acid;
- digesting said digestible feedstock to form a first metal salt in solution wherein said first metal salt precipitates as a salt of deprotonated said multi-carboxylic acid thereby forming an oxide precursor wherein said first metal salt comprises lithium and at least one of Mn, Ni, Co, Al or Fe;
- adding a coating metal precursor salt after said digestion;
- and
- heating said oxide precursor to form said lithium ion cathode material with an oxide of said coating metal precursor salt as a coating on said lithium ion cathode material;
- and
- providing an anode and an electrolyte;
- forming said anode and said cathode into a battery with said anode and said cathode separated by said electrolyte.
A method of forming a battery comprising:
- forming a coated lithium ion cathode material comprising:
- in one pot;
- reacting lithium carbonate, manganese carbonate and nickel carbonate with oxalic acid, liberating CO2(g) and H2O(l) to forming a precipitate comprising lithium oxalate, manganese oxalate and nickel oxalate to form an oxide precursor;
- adding a coating metal precursor salt to said oxide precursor;
- and
- heating said oxide precursor to form said coated lithium ion cathode material;
- and
- providing an anode and an electrolyte;
- combining said anode and said cathode into a package with said anode and said cathode separated by said electrolyte.
Dependencies are inferred from the claim text.