PATENT CLAIM ANALYSIS

Application Number: 15757035
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-03
Patent Classification: ["252", "182100"]

Abstract:
A crystalline precursor compound is described for manufacturing a lithium transition metal based oxide powder usable as an active positive electrode material in lithium-ion batteries, the precursor having a general formula Li 1−a ((Ni z (Ni 1/4  Mn 1/4 ) y  M′ x ) 1−k A k ) 1+a 0 2 , wherein x+y+z=1, 0<x≤0.2, 0.55<z≤0.90, M′ is either one or both of Co and Al, A is a dopant, 0≤k≤0.1, and 0.05≤a≤0.40, wherein the precursor an integrated intensity ratio I003/I104<1, wherein I003 and I104 are the peak intensities of the Bragg peaks (003) and (104) of the XRD pattern of the crystalline precursor compound. Also a method is described for manufacturing a positive electrode material having a general formula Li 1−a M 1−a′ O 2 , with M=(Ni z (Ni 1/2  Mn 1/2 ) y  M′ x ) 1−k  A k ), wherein x+y+z=1, 0<x≤0.2, 0.55<z≤0.90, M′ is either one or both of Co and Al, A is a dopant, 0≤k≤0.1 and 0.01<a′<0.10 by sintering the crystalline precursor compound in an oxidizing CO 2 -free atmosphere at a temperature T between 750 and 950° C., for a time t between 6 and 36 hrs.

Claim (Index 32):
A positive electrode material having a general formula Li 1+a\u2032 ; M 1\u2212a\u2032 ; O 2 , with M=(Ni z (Ni 1/2 Mn 1/2 ) y M\u2032 x ) 1\u2212k A k , wherein x+y+z=1, 0<x\u22640.2, 0.55<z\u22640.90, M\u2032 is either one or both of Co and Al, A is a dopant, 0\u2264k\u22640.1 and 0.01\u2264a\u2032\u22640.10, prepared by two successive lithiation reactions, wherein the first lithiation reaction yields an intermediate compound that is lithium deficient versus the positive electrode material, and the second lithiation reaction is performed in a CO 2 -free atmosphere.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 90.0
- Lexical Diversity: 2.17431
- Patent Class: 252.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['13983596', '15317162', '15122942', '15761450', '15763141']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8585033559925918
- 35 USC 102 Novelty (BERT): 0.5256372452929489
- Combined Prediction Score: 0.8252167449226275
- Mean Citation Score: 343.588518
- Max Citation Score: 357.13754
- Similarity Product: 265.64019521076443

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test