PATENT CLAIM ANALYSIS

Application Number: 15947190
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2019-10
Patent Classification: ["429", "326000"]

Abstract:
A method of producing a pre-selenized (selenium-preloaded) active cathode layer for a rechargeable alkali metal-selenium cell; the method comprising: (a) Preparing an integral layer of porous graphitic structure having a specific surface area greater than 100 m 2 /g; (b) Preparing an electrolyte comprising a solvent and a selenium source; (c) Preparing an anode; and (d) Bringing the integral layer and the anode in ionic contact with the electrolyte and imposing an electric current between the anode and the integral layer (serving as a cathode) to electrochemically deposit nanoscaled selenium particles or coating on the graphene surfaces. The selenium particles or coating have a thickness or diameter smaller than 20 nm (preferably <10 nm, more preferably <5 nm or even <3 nm) and occupy a weight fraction of at least 70% (preferably >90% or even >95%).

Claim (Index 28):
The rechargeable alkali metal-selenium cell of  claim 20 , wherein said cell is a sodium ion-selenium cell or potassium ion-selenium cell and said anode active material layer contains an anode active material selected from the group consisting of:\n (a) sodium- or potassium-doped silicon (Si), germanium (Ge), tin (Sn), lead (Pb), antimony (Sb), bismuth (Bi), zinc (Zn), aluminum (Al), titanium (Ti), cobalt (Co), nickel (Ni), manganese (Mn), cadmium (Cd), and mixtures thereof; (b) sodium- or potassium-containing alloys or intermetallic compounds of Si, Ge, Sn, Pb, Sb, Bi, Zn, Al, Ti, Co, Ni, Mn, Cd, and their mixtures; (c) sodium- or potassium-containing oxides, carbides, nitrides, sulfides, phosphides, selenides, tellurides, or antimonides of Si, Ge, Sn, Pb, Sb, Bi, Zn, Al, Fe, Ti, Co, Ni, Mn, Cd, and mixtures or composites thereof, (d) sodium or potassium salts; (e) particles of graphite, hard carbon, soft carbon or carbon particles and pre-sodiated versions thereof; and combinations thereof.

Metadata:
- Claim Count in Document: 98.0
- Percentile: 91.0
- Lexical Diversity: 1.80645
- Patent Class: 429.0
- Transitional Phrase Type: closed
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14545128', '14545279', '14756510', '14756509', '14545204']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9212051172956688
- 35 USC 102 Novelty (BERT): 0.5771029575455127
- Combined Prediction Score: 0.8867949013206532
- Mean Citation Score: 479.2262
- Max Citation Score: 502.86844
- Similarity Product: 407.3067424737644

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