PATENT CLAIM ANALYSIS

Application Number: 15884196
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-08
Patent Classification: ["429", "122000"]

Abstract:
The present invention provides a method for producing low-water-content electrolyte solutions. In particular, the present invention provides a method of removing water from a liquid solution comprising a non-aqueous solvent, a hygroscopic metal salt and water. It also provides a method for producing a low-water content electrolyte solution without isolation of the metal salt. The method of the invention is useful in producing low water content electrolyte solutions for batteries such as lithium- or lithium-ion batteries.

Claim (Index 12):
A method for producing a non-aqueous electrolyte solution comprising a hygroscopic alkali metal salt and about 1000 ppm or less of water, said method comprising:\n (a) admixing (i) a non-aqueous electrolyte solvent and (ii) a liquid solution comprising said hygroscopic alkali metal salt and water under conditions sufficient to produce an admixture solution and a vapor comprising said electrolyte solvent and water; (b) removing said vapor to reduce the amount of said water from said admixture solution to produce said electrolyte solution; (c) adding an additional amount of said non-aqueous electrolyte solvent to said electrolyte solution produced in said step (b), wherein the amount of said non-aqueous-electrolyte solvent added is sufficient to maintain said alkali metal electrolyte concentration below the concentration where the vapor pressure of said admixture solution is more than one-tenth of the product of the vapor pressure of the pure non-aqueous electrolyte solvent and its mole fraction in said admixture solution; and (d) repeating said steps (b) and (c) to produce said non-aqueous electrolyte solution.

Metadata:
- Claim Count in Document: 53.0
- Percentile: 86.0
- Lexical Diversity: 1.82222
- Patent Class: 429.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13598570', '15599298', '15574665', '15142322', '15788188']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.874561260537763
- 35 USC 102 Novelty (BERT): 0.5056354299832111
- Combined Prediction Score: 0.8376686774823078
- Mean Citation Score: 250.415848
- Max Citation Score: 258.42273
- Similarity Product: 156.1586539690715

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