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US 2026/0162979 A1Published application
Disordered cathode for a battery
AssigneeNissan North America, Inc.
InventorsAlbert Wang Xiao, Simran Kumari, Balachandran Gadaguntla Radhakrishnan, Masanobu Uchimura, Shigemasa Kuwata, Manas Likhit Holekevi Chandrappa
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Abstract
A cathode material includes a cation disordered composition comprising a spinel crystal structure and the following formula: Li1+yMn2—xAxO4+z, where 0.0<x≤0.5, z and y are ≤0.5, and A comprises Y, Zr, Si, V, Nb, Fe, Cu, Ti, or any combination thereof. A may be introduced into the cathode material by elemental substitution.
Claims20
A cathode material, comprising:
- a cation disordered composition comprising a spinel crystal structure and the following formula:
- wherein 0.0<x≤0.5,
- wherein z and y are ≤0.5, and
- wherein A comprises Y, Zr, Si, V, Nb, Fe, Cu, Ti, or any combination thereof.
1 more element
A cathode material, comprising:
- a cation disordered composition comprising a spinel crystal structure and the following formula:
- wherein 0.0<x≤0.5,
- wherein z and y are ≤0.5, and
- wherein A comprises Y, Zr, Si, V, Nb, Fe, Cu, Ti, or any combination thereof,
- wherein the cation disordered composition having an X-ray diffraction pattern having an area ratio of less than 0.800 at peaks of 36.0-36.6° (2θ) to 43.8-44.5° (2θ), as measured by Cu kα radiation.
2 more elements
A cathode material, comprising:
- a cation disordered composition comprising a spinel crystal structure and the following formula:
- wherein 0<x≤0.5,
- wherein z and y are ≤0.5,
- wherein A comprises Y, Zr, Si, V, Nb, Fe, Cu, Ti, or any combination thereof, and
- wherein the cation disordered composition has a cell potential in a lithium-ion battery cell that exhibits a sloping character such that the percentage of total capacity observed between 3.9 and 2.9 V vs. Li+/Li is at least 4%.
2 more elements
Dependencies are inferred from the claim text.