PATENT CLAIM ANALYSIS

Application Number: 16029855
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2018-11
Patent Classification: ["252", "182100"]

Abstract:
The purpose of the present invention is to provide a positive-electrode active material for non-aqueous electrolyte secondary batteries that is capable of achieving both a high capacity and a high output. This positive-electrode active material contains a lithium-nickel composite oxide represented by the general formula: Li b Ni 1-x-y Co x M y O 2  wherein M represents at least one element selected from Al, Ti, Mn and W, b is 0.95≤b≤1.03, x is 0<x≤0.15, y is 0<y≤0.07, and x and y is x+y≤0.16, wherein c-axis length of the lithium-nickel composite oxide is 14.185 angstrom or greater as determined by a Rietveld analysis of X-ray diffraction.

Claim (Index 6):
A process for producing a positive electrode active material for a non-aqueous electrolyte secondary battery, comprising the following processes (A) and (B):\n (A) mixing a nickel composite hydroxide comprising cobalt and at least one element selected from the group consisting of Al, Ti, Mn and W, a nickel composite oxyhydroxide comprising cobalt and at least one element selected from the group consisting of Al, Ti, Mn and W, or a nickel composite oxide comprising cobalt and at least one element selected from the group consisting of Al, Ti, Mn and W with a lithium compound, and thereafter calcining the resulting mixture in an oxygen-containing atmosphere at a temperature of 700 to 780\u00b0 C. so that the length of c-axis of the lithium-nickel composite oxide is 14.185 angstrom or more, to give a calcined powder of a lithium-nickel composite oxide represented by the following general formula (2):\n Li a Ni 1-x-y Co x M y O 2 \u2003\u2003(2) \n wherein M is at least one element selected from the group consisting of Al, Ti, Mn and W; a satisfies 0.98\u2264a\u22641.11; x satisfies 0<x\u22640.15; y satisfies 0<y\u22640.07; and the sum of x and y satisfies x+y\u22640.16, and (B) mixing said calcined powder of the lithium-nickel composite oxide with water so that the amount of the calcined powder of the lithium-nickel composite oxide is 700 g to 2000 g per 1 liter of water to form a slurry, washing the calcined powder of the lithium-nickel composite oxide with water under the condition of maintaining a temperature of the slurry to 10 to 40\u00b0 C., and thereafter filtering and drying the slurry, to give a lithium-nickel composite oxide powder.

Metadata:
- Claim Count in Document: 49.0
- Percentile: 95.0
- Lexical Diversity: 1.53846
- Patent Class: 252.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15306206', '14901731', '14439058', '15500135', '15523587']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8113769495374262
- 35 USC 102 Novelty (BERT): 0.5367354442479672
- Combined Prediction Score: 0.7839127990084804
- Mean Citation Score: 336.215172
- Max Citation Score: 396.0384
- Similarity Product: 339.5468946109772

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test