PATENT CLAIM ANALYSIS

Application Number: 15905017
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-07
Patent Classification: ["429", "218100"]

Abstract:
Embodiments described herein relate generally to lithium sulfur batteries and methods of producing the same. As described herein, preventing coarsening of sulfur during the well-known melt-diffusion processing of cathodes allows a high areal capacity of 10.7 mAh/cm 2  at current density of 3.4 mA/cm 2  (C-rate of 1/5 h −1 ). The addition of a lithium salt, such as LiTFSI, prior to melt-diffusion can prevent coarsening of molten sulfur and allows creation of a sulfur electrode with a high concentration of triple-phase junctions for electrochemical reaction. In some embodiments, approximately 60-70% utilization of the theoretical capacity of sulfur is reached at a high loading (e.g., greater than 7.5 mg S/cm 2 ). The electrodes are prepared in lean-electrolyte environment of 3 ml electrolyte /g sulfur  (˜70 vol % of electrolyte in the electrode) for high areal capacity in Li—S batteries.

Claim (Index 5):
The method of  claim 1 , wherein the solvent is selected from the group consisting of ethylene carbonate, propylene carbonate, butylene carbonate, and their chlorinated or fluorinated derivatives, dimethyl carbonate, diethyl carbonate, ethylmethyl carbonate, dipropyl carbonate, methyl propyl carbonate, ethyl propyl carbonate, dibutyl carbonate, butylmethyl carbonate, butylethyl carbonate and butylpropyl carbonate, \u03b3-butyrolactone, dimethoxyethane, tetrahydrofuran, 2-methyl tetrahydrofuran, 1,3-dioxolane, 4-methyl-1,3-dioxolane, diethyl ether, sulfolane, methylsulfolane, acetonitrile, propiononitrile, ethyl acetate, methyl propionate, ethyl propionate, dimethyl carbonate, and glymes, including mono-glyme, di-glyme, tri-glyme and tetra-glyme.

Metadata:
- Claim Count in Document: 38.0
- Percentile: 88.0
- Lexical Diversity: 1.66667
- Patent Class: 429.0
- Transitional Phrase Type: closed
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15834991', '13986575', '14544760', '15676672', '15638811']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.883868253679251
- 35 USC 102 Novelty (BERT): 0.4935983396151807
- Combined Prediction Score: 0.8448412622728441
- Mean Citation Score: 250.696
- Max Citation Score: 256.52692
- Similarity Product: 206.92749679967167

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