PATENT CLAIM ANALYSIS

Application Number: 16070046
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-01
Patent Classification: ["429", "188000"]

Abstract:
The purpose of the present embodiment is to provide a lithium secondary battery which is assumed to be operated at a high voltage or to be used at high temperatures for a long period of time, and which has improved life characteristics by suppressing a decomposition reaction of the electrolyte solution. The present embodiment relates to an electrolyte solution for a secondary battery containing a sulfone compound, a fluorine containing ether and an acid anhydride at a specific composition, and a secondary battery which uses this electrolyte solution for a secondary battery.

Claim (Index 1):
An electrolyte solution for a secondary battery comprising\n an electrolyte solvent comprising at least one selected from open chain sulfone compounds represented by formula (1) and at least one selected from fluorine-containing ether compounds represented by formula (2), and at least one selected from acid anhydride compounds, wherein a content of the open chain sulfone compound represented by formula (1) in the electrolyte solvent is more than 10 vol % and less than 70 vol %, a content of the fluorine-containing ether compound represented by formula (2) in the electrolyte solvent is 30 vol % or more and 90 vol % or less, and a content of the acid anhydride compound in the electrolyte solution is 0.1 mass % or more and 10 mass % or less,\n R 1 \u2033\u2014SO 2 \u2014R 2 \u2033\u2003\u2003(1) \n wherein R 1 \u2033 and R 2 \u2033 each independently represent substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, and\n R 1 \u2014O\u2014R 2 \u2003\u2003(2) \n wherein R 1  and R 2  each independently represent alkyl group having 1 to 7 carbon atoms, and at least one of R 1  and R 2  is fluorine-containing alkyl group.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 95.0
- Lexical Diversity: 1.83019
- Patent Class: 429.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15521276', '14889718', '15327205', '14405798', '15039585']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.894254311764417
- 35 USC 102 Novelty (BERT): 0.5280305567664769
- Combined Prediction Score: 0.8576319362646231
- Mean Citation Score: 344.38255200000015
- Max Citation Score: 377.0143
- Similarity Product: 279.12645011900656

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

Dataset: test