PATENT CLAIM ANALYSIS

Application Number: 16304309
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-05
Patent Classification: ["252", "182100"]

Abstract:
A high-rate lithium cobaltate cathode material, which contains a multi-channel network formed by fast ionic conductor Li α M′ γ O β , mainly consists of lithium cobaltate. The lithium cobaltate is melted together with the fast ionic conductor Li α M′ γ O β  in the form of primary particles to form secondary particles. Besides, the lithium cobaltate is embedded in the multi-channel network formed by fast ionic conductor Li α M′ γ O β . The element M′ in Li α M′ γ O β  is one or more of Ti, Zr, Y, V, Nb, Mo, Sn, In, La, W and 1≤α≤4, 1≤γ≤5, 2≤β≤12. The lithium cobaltate cathode material is mainly obtained by uniformly mixing cobaltous oxide impregnated with a hydroxide of M′ and lithium source, then by the sintering reaction in an air atmosphere furnace at a high temperature. The product of the present invention can greatly promote the lithium ion conductivity of the lithium cobaltate cathode material during the charging and discharging process of the lithium-ion battery, and improve the rate performance of the material.

Claim (Index 6):
The method for preparing a high-rate lithium cobaltate cathode material, as described in  claim 5 , is characterized by that the porous cobalt oxide is mainly prepared by the following steps:\n A small amount of precipitant solution was injected into the reaction kettle and the pH was controlled between 6 and 14. Under strong agitation and inert gas protection, cobalt salt solution, complexing agent solution and the remaining precipitant solution were simultaneously injected into the reaction kettle using parallel flow method to carry out the reaction. The pH was continuously controlled between 6 to 14 during the stirring reaction, and the temperature of the reaction kettle was controlled between 0\u00b0 C. and 85\u00b0 C. during the reaction. After all the cobalt salt solution was added. After aging and filtration, the filter cake was obtained, which was dried to obtain the precursor. The precursor was placed in an air atmosphere furnace for pre-sintering, and after sinter, sieve it to obtain the porous cobalt oxide.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 98.0
- Lexical Diversity: 2.11702
- Patent Class: 252.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['11912655', '11257293', '13848316', '13425536', '10699484']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8254943103843675
- 35 USC 102 Novelty (BERT): 0.5038259218872427
- Combined Prediction Score: 0.7933274715346551
- Mean Citation Score: 259.58741200000003
- Max Citation Score: 284.64233
- Similarity Product: 211.3054671447796

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