Nickelate cathode materials

Patent metadata

Field	Value
Publication number	US-11560321-B2
Application number	US-202017032496-A
Country	US
Kind code	B2
Filing date	Sep 25, 2020
Priority date	Sep 27, 2019
Publication date	Jan 24, 2023
Grant date	Jan 24, 2023

Abstract

Nickelate cathode materials are provided, wherein said cathode material has an X-ray diffraction (XRD) pattern comprising a first peak from about 40.0-41.6 2Θ, and a second peak from about 62.6-63.0 2Θ. Methods of preparing such cathode materials are also provided. Alkaline electrochemical cells comprising said cathode materials are also provided.

First claim

What is claimed is:

1. A nickelate material, said material having an X-ray diffraction (XRD) pattern comprising a first peak from about 24.5-25.7 2Θ, and a second peak from about 11.8-13.0 2Θ.

2. The nickelate material of claim 1 , wherein said XRD pattern further comprises at least one peak selected from the group consisting of a third peak from about 18.1-19.7 2Θ, a fourth peak from about 40.0-41.6 2Θ, a fifth peak from about 36.4-38.0 2Θ, a sixth peak from about 43.0-43.4 2Θ, a seventh peak from about 59.6-60.4 2Θ, an eighth peak from about 65.2-66.8 2Θ, a ninth peak from about 62.6-63.0 2Θ, a tenth peak from about 45.3-46.9 2Θ, and an eleventh peak from about 47.4-49.0 2Θ.

3. The nickelate material of claim 1 , wherein said XRD pattern further comprises at least three peaks selected from the group consisting of a third peak from about 18.1-19.7 2Θ, a fourth peak from about 40.0-41.6 2Θ, a fifth peak from about 36.4-38.0 2Θ, a sixth peak from about 43.0-43.4 2Θ, a seventh peak from about 59.6-60.4 2Θ, an eighth peak from about 65.2-66.8 2Θ, a ninth peak from about 62.6-63.0 2Θ, a tenth peak from about 45.3-46.9 2Θ, and an eleventh peak from about 47.4-49.0 2Θ.

4. The nickelate material of claim 1 , wherein said XRD pattern further comprises at least six peaks selected from the group consisting of a third peak from about 18.1-19.7 2Θ, a fourth peak from about 40.0-41.6 2Θ, a fifth peak from about 36.4-38.0 2Θ, a sixth peak from about 43.0-43.4 2Θ, a seventh peak from about 59.6-60.4 2Θ, an eighth peak from about 65.2-66.8 2Θ, a ninth peak from about 62.6-63.0 2Θ, a tenth peak from about 45.3-46.9 2Θ, and an eleventh peak from about 47.4-49.0 2Θ.

5. The nickelate material of claim 1 , wherein said XRD pattern further comprises a third peak from about 18.1-19.7 2 Θ, a fourth peak from about 40.0-41.6 2Θ, a fifth peak from about 36.4-38.0 2Θ, a sixth peak from about 43.0-43.4 2Θ, a seventh peak from about 59.6-60.4 2Θ, an eighth peak from about 65.2-66.8 2Θ, a ninth peak from about 62.6-63.0 2Θ, a tenth peak from about 45.3-46.9 2Θ, and an eleventh peak from about 47.4-49.0 2Θ.

6. The nickelate material of claim 5 , wherein said first peak has a full width at half maximum (FWHM) of about 0.68, said second peak has a FWHM of about 0.64, said third peak has a FWHM of about 0.97, said fourth peak has a FWHM of about 1.00, said fifth peak has a FWHM of about 0.95, said sixth peak has a FWHM of about 0.19, said seventh peak has a FWHM of about 0.46, said eighth peak has a FWHM of about 1.24, said ninth peak has a FWHM of about 0.29, said tenth peak has a FWHM of about 0.95, and said eleventh peak has a FWHM of about 1.12.

7. The nickelate material of claim 5 , wherein said first peak has a normalized intensity relative to the fifth peak of 64±13, said second peak has a normalized intensity relative to the fifth peak of 353±58, said third peak has a normalized intensity relative to the fifth peak of 210±42, said fourth peak has a normalized intensity relative to the fifth peak of 58±12, said fifth peak has a normalized intensity of 100, said sixth peak has a normalized intensity relative to the fifth peak of 70±14, said seventh peak has a normalized intensity relative to the fifth peak of 17±5, said eighth peak has a normalized intensity relative to the fifth peak of 44±10, said ninth peak has a normalized intensity relative to the fifth peak of 30±6, said tenth peak has a normalized intensity relative to the fifth peak of 31±10, and said eleventh peak has a normalized intensity relative to the fifth peak of 38±10.

8. The nickelate material of claim 5 , wherein said first peak is 25.1±0.2 2Θ, said second peak is 12.4±0.2 2Θ, said third peak is 18.9±0.2 2Θ, said fourth peak is 40.8±0.2 2Θ, said fifth peak is 37.2±0.2 2Θ, said sixth peak is 43.2±0.2 2Θ, said seventh peak is 60.0±0.2 2Θ, said eighth peak is 66.0±0.2 2Θ, said ninth peak is 62.8±0.2 2Θ, said tenth peak is 46.1±0.2 2Θ, and said eleventh peak is 48.2±0.2 2Θ.

9. The nickelate material of claim 1 , wherein said first peak is 25.1±0.2 2Θ, and said second peak is 12.4±0.2 2Θ.

10. The nickelate material of claim 1 , wherein said nickelate material is substituted.

11. An electrochemical cell, comprising:
a) a container; and
b) an electrode assembly disposed within the container and comprising a cathode, an anode, a separator located between the cathode and the anode, and an electrolyte solution; and
wherein the cathode comprises the nickelate material of claim 1 .

12. The electrochemical cell of claim 11 , wherein the cathode further comprises electrolytic manganese dioxide (EMD), chemical manganese dioxide, or copper oxide.

13. The electrochemical cell of claim 11 , wherein the anode comprises an active material selected from the group consisting of zinc, magnesium, aluminum and silicon.

14. An alkaline electrochemical cell comprising the nickelate material of claim 1 .

15. A cathode comprising the nickelate material of claim 1 .

Assignees

• Energizer Brands Llc

Inventors

• Zheng Guanghong

Classifications

• H01M10/30

  Nickel accumulators (H01M10/34 takes precedence) · CPC title

• C01G53/42 Primary

  containing alkali metals, e.g. LiNiO2 · CPC title

• C01P2002/74

  by peak-intensities or a ratio thereof only · CPC title

• C01P2002/72

  by d-values or two theta-values, e.g. as X-ray diagram · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title