PATENT CLAIM ANALYSIS

Application Number: 15756183
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-09
Patent Classification: ["429", "218100"]

Abstract:
An object of the present invention is to provide a non-aqueous electrolyte secondary battery having high discharge capacity and high charge/discharge efficiency. The aforementioned problem can be resolved by a carbonaceous material for a non-aqueous electrolyte secondary battery negative electrode, using a plant as a carbon source, where potassium element content is 0.10 wt. % or less, true density determined by a pycnometer method using butanol is from 1.35 to 1.50 g/cm 3 , lithium is electrochemically doped in the carbonaceous material, and in a case where an NMR spectrum of lithium nucleus is measured, a main resonance peak shifted 110 to 160 ppm to a lower magnetic field side is exhibited with regard to a resonance peak of LiCl as a reference substance.

Claim (Index 10):
A method of manufacturing a carbonaceous material for a non-aqueous electrolyte secondary battery negative electrode, comprising:\n (1) an alkali impregnating step of adding a compound containing an alkali metal element to a plant-derived char to obtain a plant-derived char impregnated with alkali; (2) a heat treating step of heat treating the plant-derived char impregnated with alkali at 500\u00b0 C. to 1000\u00b0 C. in a non-oxidizing gas atmosphere to obtain an alkali-treated carbonaceous material precursor; (3) a gas phase de-mineralizing step of heat treating the alkali-treated carbonaceous material precursor at 500\u00b0 C. to 1250\u00b0 C. in an inert gas atmosphere containing a halogen compound; (4) a step of pulverizing the carbonaceous material precursor obtained by gas phase de-mineralizing; (5) a step of main firing the pulverized carbonaceous material precursor at 800\u00b0 C. to 1600\u00b0 C. in a non-oxidizing gas atmosphere; and (6) a step of coating the fired material with pyrolytic carbon.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 88.0
- Lexical Diversity: 1.51724
- Patent Class: 429.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14424903', '15409242', '14424676', '14416107', '15501970']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8846206317686456
- 35 USC 102 Novelty (BERT): 0.5129050249516672
- Combined Prediction Score: 0.8474490710869478
- Mean Citation Score: 298.07708
- Max Citation Score: 333.25378
- Similarity Product: 275.43220275553944

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