Preparation and characterization of modified oxide compositions

Patent metadata

Field	Value
Publication number	US-11075379-B2
Application number	US-201916356992-A
Country	US
Kind code	B2
Filing date	Mar 18, 2019
Priority date	Jun 20, 2016
Publication date	Jul 27, 2021
Grant date	Jul 27, 2021

Abstract

Oxide compositions comprising a modified structure which includes the formula ABO z . The A component may comprise at a cation of least one element selected from the group consisting of Mg, Ca, Sr, Ba, Sc, Y, La, Ce, Pr, Nd, Gd, and Zn, and the B component may comprise a cation of at least one element selected from the group consisting of V, Cr, Mn, Fe, Co, and Ni. Batteries and supercapacitors comprising the oxide compositions of the present disclosure and methods of making the oxide compositions of the present disclosure are also provided.

First claim

What we claim is:

1. A method of preparing a modified ABO z -based composition comprising:
providing a starting ABO z composition;
providing an acidic component;
contacting the starting ABO z composition and the acidic component at first time and temperature conditions to remove a portion of the A and a portion of the B from the starting ABO z composition to produce a modified ABO z composition; and
heating the modified ABO z composition to a temperature below a phase transition temperature for the modified ABO z composition,
wherein the contacting with the acidic component removes from 50% to 90% of the A from the starting ABO z composition.

2. The method according to claim 1 , wherein the contacting with the acidic component removes approximately 2 A from the starting ABO z composition for every B removed from the starting ABO z composition.

3. The method according to claim 1 , wherein the starting ABO z composition comprises an orthorhombic based crystalline structure.

4. The method according to claim 1 , further comprising contacting the modified ABO z composition with a source of metallic ions.

5. The method according to claim 1 , wherein in the modified ABO z composition, A is a cation of at least one element selected from the group consisting of Mg, Ca, Sr, Ba, Sc, Y, La, Ce, Pr, Nd, Gd and Zn, B is a cation at least one element selected from the group consisting of V, Cr, Mn, Fe, Co, and Ni, A is present in a mole fraction, X A , of from 0.005 to 0.2, B is present in a mole fraction, X B , of from 0.8 to 0.995, and z is sufficient to balance the charge of the ABO z composition.

6. The method according to claim 5 , wherein the modified ABO z composition comprises the formula YMnO 3 .

7. The method according to claim 5 , wherein the starting ABO z composition comprises an orthorhombic based crystalline structure.

8. The method according to claim 5 , wherein A is a cation of Y, and B is a cation of at least one element selected from the group consisting of V, Cr, Mn, Fe, Co, and Ni.

9. The method according to claim 1 , wherein the phase transition temperature is no greater than 450° C.

10. A method of preparing a modified AA′BB′O z composition comprising:
providing a starting AA′BB′O z composition;
providing an acidic component;
contacting the starting AA′BB′O z composition with the acidic component at first time and temperature conditions to remove portions of the A, A′, B and B′ from the starting AA′BB′O z composition to produce a modified AA′BB′O z composition; and
heating the modified AA′BB′O z composition to a temperature below its phase transition temperature.

11. The method according to claim 10 , wherein A comprises a cation of at least one element selected from the group consisting of Mg, Ca, Sr, Ba, Sc, Y, La, Ce, Pr, Nd, Gd and Zn, and is different from A′.

12. The method according to claim 10 , wherein A′ comprises a cation of at least one element selected from the group consisting of Mg, Ca, Sr, Ba, Sc, Y, La, Ce, Pr, Nd, Gd and Zn, and is different from A.

13. The method according to claim 10 , wherein B comprises a cation of at least one element selected from the group consisting of V, Cr, Mn, Fe, Co, and Ni, and is different from B′.

14. The method according to claim 10 , wherein B′ comprises a cation of at least one element selected from the group consisting of V, Cr, Mn, Fe, Co, and Ni, and is different from B.

15. The method according to claim 10 , wherein the starting AA′BB′O z composition comprises an orthorhombic based crystalline structure.

16. The method according to claim 10 , wherein the heating step comprises heating to a temperature no greater than 450° C.

17. The method according to claim 10 , wherein in the modified AA′BB′O z composition:
A is present in a mole fraction, X A , ranging from 0.005 to 0.2,
A′ is present in a mole fraction, X A′ , ranging from 0 to 0.2,
B is present in a mole fraction, X B , ranging from 0.8 to 0.995,
B′ is present in a mole fraction, X B′ , ranging from 0 to 0.995, and
is sufficient to balance the charge of the modified AA′BB′O z composition.

18. A method of preparing a modified ABO z -based composition comprising:
providing a starting ABO z composition;
providing an acidic component;
contacting the starting ABO z composition and the acidic component at first time and temperature conditions to remove a portion of the A and a portion of the B from the starting ABO z composition to produce a modified ABO z composition; and
heating the modified ABO z composition to a temperature below a phase transition temperature for the modified ABO z composition,
wherein the starting ABO z composition comprises an orthorhombic based crystalline structure.

19. The method according to claim 15 , wherein the contacting with the acidic component removes approximately 2 A from the starting ABO z composition for every B removed from the starting ABO z composition.

20. The method according to claim 15 , further comprising contacting the modified ABO z composition with a source of metallic ions.

21. The method according to claim 15 , wherein in the modified ABO z composition, A is a cation of at least one element selected from the group consisting of Mg, Ca, Sr, Ba, Sc, Y, La, Ce, Pr, Nd, Gd and Zn, B is a cation at least one element selected from the group consisting of V, Cr, Mn, Fe, Co, and Ni, A is present in a mole fraction, X A , of from 0.005 to 0.2, B is present in a mole fraction, X B , of from 0.8 to 0.995, and z is sufficient to balance the charge of the ABO z composition.

22. The method according to claim 17 , wherein the modified ABO z composition comprises the formula YMnO 3 .

23. The method according to claim 17 , wherein A is a cation of Y, and B is a cation of at least one element selected from the group consisting of V, Cr, Mn, Fe, Co, and Ni.

24. The method according to claim 15 , wherein the phase transition temperature is no greater than 450° C.

25. A method of preparing a modified ABO z -based composition comprising:
providing a starting ABO z composition;
providing an acidic component;
contacting the starting ABO z composition and the acidic component at first time and temperature conditions to remove a portion of the A and a portion of the B from the starting ABO z composition to produce a modified ABO z composition;
heating the modified ABO z composition to a temperature below a phase transition temperature for the modified ABO z composition; and
contacting the modified ABO z composition with a source of metallic ions.

26. The method according to claim 25 , wherein the contacting with the acidic component removes approximately 2 A from the starting ABO z composition for every B removed from the starting ABO z composition.

27. The method according to claim 25 , wherein in the modified ABO z composition, A is a cation of at least one element selected from the group consisting of Mg, Ca, Sr, Ba, Sc, Y, La, Ce, Pr, Nd, Gd and Zn, B is a cation at least one element selected from the group consisting of V, Cr, Mn, Fe, Co, and Ni, A is present in a mole fraction, X A , of from 0.005 to 0.2, B is present in a mole fraction, X B , of from 0.8 to 0.995, and z is sufficient to balance the charge of the ABO z composition.

28. The method according to claim 27 , wherein the modified ABO z composition comprises the formula YMnO 3

Assignees

• Honda Motor Co Ltd

Inventors

• Brooks Christopher
• Kreidler Eric

Classifications

• H01M4/505

  of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy · CPC title

• C01G45/00 Primary

  Compounds of manganese · CPC title

• H01M4/485 Primary

  of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy (H01M4/505, H01M4/525 take precedence) · CPC title

• C01P2004/39

  parallelepiped-like · CPC title

• C01P2002/82

  by IR- or Raman-data · CPC title