PATENT CLAIM ANALYSIS

Application Number: 15757016
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-12
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 1/2  Mn 1/2 )y Co x ) 1−k  A k ) 1+a  O 2 , wherein x+y+z=1, 0.1≤x≤0.4, 0.25≤z≤0.55, A is a dopant, 0≤k≤0.1, and 0.04≤a≤0.50, wherein the pre cursor has a crystalline size L expressed in nm, with 77−(67*z)≤L≤97−(67*z). Also a method is described for manufacturing a positive electrode material having a general formula Li 1−a′  ((Ni z  (Ni 1/2  Mn 1/2 ) y  A k ) 1−a′  O 2 , wherein x+y+z=1, 0.1≤x≤0.4, 0.25≤z≤0.55, A is a dopant, 0≤k≤0.1, and 0.01≤a′≤0.10 by sintering the crystalline precursor compound in an oxidizing atmosphere at a temperature T between 800 and 1000° C., for a time t between 6 and 36 hrs.

Claim (Index 23):
A method for preparing 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  CO x ) 1\u2212k  A k , wherein x+y+z=1, 0.1\u2264x\u22640.4, 0.30\u2264z\u22640.55, A is a dopant, 0\u2264k\u22640.1, and 0.01\u2264a\u2032\u22640.10, comprising:\n providing a M-based precursor prepared from co-precipitation of metal sulphates with a base; mixing the M-based precursor with Li 2 CO 3 , thereby obtaining a first mixture, whereby the Li to transition metal ratio in the first mixture is between 0.50 and 0.90, sintering the first mixture in an oxidizing atmosphere at a temperature between 860 and 930\u00b0 C., for a time between 8 and 36 hrs, thereby obtaining a lithium deficient precursor powder, mixing the lithium deficient precursor powder with either one of LiOH and LiOH.H 2 O, thereby obtaining a second mixture, sintering the second mixture in an oxidizing atmosphere at a temperature between 800 and 1000\u00b0 C., for a time between 6 and 36 hrs.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 90.0
- Lexical Diversity: 2.08046
- Patent Class: 252.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15757035', '15761450', '13983596', '15121439', '15517273']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8392990009004466
- 35 USC 102 Novelty (BERT): 0.6224276460276701
- Combined Prediction Score: 0.817611865413169
- Mean Citation Score: 407.586254
- Max Citation Score: 603.7752
- Similarity Product: 537.8966415063859

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

Dataset: test