Precursor formulation for battery active materials synthesis

• US 9,112,225 B2
• Filed: 05/11/2012
• Issued: 08/18/2015
• Est. Priority Date: 05/12/2011
• Status: Active Grant

• Current Assignee: Applied Materials Incorporated
• Original Assignee: Applied Materials Incorporated
• Inventors: Yang, Lu, Wang, Miaojun, Zeng, Dongli
• Primary Examiner(s): ANTHONY, JOSEPH DAVID
• Application Number:
  US13/470,041
• Publication Number:
  US 20120288617A1
• Time in Patent Office: 1,194 Days
• Field of Search: 252/182.1, 252/183.11, 252/183.13, 252/183.14, 252/519.1, 429/218.1, 429/220, 429/231.5, 427/58
• US Class Current: 1/1
• CPC Class Codes: C01B 13/185 Preparing mixtures of oxides
• CPC Class Codes: H01M 10/052 Li-accumulators
• CPC Class Codes: H01M 4/48 of inorganic oxides or hydroxides
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02P 20/133 Renewable energy sources, e.g. sunlight

Abstract

Compositions and methods of forming battery active materials are provided. A solution of battery active metal cations and reactive anions may be blended with a fuel to yield a precursor mixture usable for synthesizing a battery active material for deposition onto a substrate. The battery active metal cations include lithium, manganese, cobalt, nickel, iron, vanadium, and the like. Reactive anions include nitrate, acetate, citrate, tartrate, maleate, azide, amide, and other lower carboxylates. Suitable fuels, which may be water miscible, may include amino compounds. Alcohols and sugars may be added to adjust carbon content and fuel combustion characteristics. An exothermic reaction is performed to convert the metals into battery active oxides.

Claims

1. A chemical composition, comprising:

a water miscible solution comprising a first battery active metal cation, a second batter active metal cation, and reactive anions, wherein the first battery active metal cation is lithium; and

a water miscible organic material selected from the group consisting of hexamethylene tetramine, carbohydrazide, oxalic acid dihydrazide, malonic acid dihydrazide, maleic hydrazide, diformyl hydrazide, tetraformal trisazine, and combinations and derivatives thereof, wherein the water miscible organic material is between about 0.1 weight percent and about 10 weight percent of the chemical composition.

2. The chemical composition of claim 1, wherein the first and second battery active metal cations form battery active metal oxides.

3. The chemical composition of claim 1, wherein the reactive anions comprise one or more anions from the group consisting of nitrate, acetate, citrate, tartrate, azide, amide, and combinations or derivatives thereof.

4. The chemical composition of claim 1, further comprising a fuel.

5. The chemical composition of claim 1, wherein the water miscible solution comprises metal nitrates.

6. The chemical composition of claim 5, wherein the second battery active metal cation is selected from the group consisting of lithium, nickel, cobalt, manganese, and iron.

7. The chemical composition of claim 3, further comprising a water miscible fuel.

8. The chemical composition of claim 3, comprising more than one reactive anion.

9. The chemical composition of claim 4, wherein the fuel is between about 0.1 weight percent and about 5 weight percent of the chemical composition.

10. The chemical composition of claim 1, wherein the water miscible solution is a blend of two or more standard molar solutions.

11. The chemical composition of claim 10, further comprising an alcohol, wherein the water miscible organic material comprises an amino compound.

12. A chemical composition, comprising:

a water miscible solution comprising a first battery active metal cation, a second battery active metal cation, and reactive anions, wherein the first battery active metal cation is lithium, wherein the second battery active metal cation is selected from the group consisting of nickel, cobalt, and manganese; and

a water miscible organic material selected from the group consisting of hexamethylene tetramine, carbohydrazide, oxalic acid dihydrazide, malonic acid dihydrazide, maleic hydrazide, diformyl hydrazide, tetraformal trisazine, and combinations and derivatives thereof, wherein the water miscible organic material is between about 0.1 weight percent and about 10 weight percent of the chemical composition.

13. The chemical composition of claim 12, wherein the first and second battery active metal cations form battery active metal oxides.

14. The chemical composition of claim 12, wherein the reactive anions comprise one or more anions selected from the group consisting of nitrate, acetate, citrate, tartrate, azide, amide, and combinations or derivatives thereof.

15. The chemical composition of claim 12, further comprising a fuel.

16. The chemical composition of claim 12, wherein the water miscible solution comprises metal nitrates.

17. The chemical composition of claim 12, further comprising an alcohol, wherein the water miscible organic material comprises an amino compound.