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 31):
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 the precursor compound according to claim  1 , 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): 0.8585059912921965
- 35 USC 102 Novelty (BERT): 0.5256471771303257
- Combined Prediction Score: 0.8252201098760095
- Mean Citation Score: 343.588518
- Max Citation Score: 357.13754
- Similarity Product: 265.33008537593133

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

Dataset: test