PATENT CLAIM ANALYSIS

Application Number: 15975181
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["429", "218100"]

Abstract:
A process for producing an anode layer, comprising: (a) dispersing catalyst metal-coated Si particles, graphene sheets, and an optional blowing agent in a liquid medium to form a graphene/Si dispersion; (b) dispensing and depositing the dispersion onto a supporting substrate to form a wet layer and removing the liquid medium from the wet layer to form a dried layer of graphene/Si mixture material; and (c) exposing the dried layer to a high temperature environment, from 300° C. to 2,000° C., to induce volatile gas molecules from graphene sheets or to activate the blowing agent for producing the graphene foam and, concurrently, to enable a catalyst metal-catalyzed growth of multiple Si nanowires emanated from Si particles as a feed material in pores of the foam to form the anode layer; wherein the Si nanowires have a diameter of 5-100 nm and a length-to-diameter aspect ratio of at least 5.

Claim (Index 1):
A process for producing an anode or negative electrode layer for a lithium battery, said anode layer comprising a solid graphene foam comprising multiple pores, multiple, pore walls and silicon (Si) nanowires residing in said pores, said process comprising:\n (a) dispersing Si particles, graphene sheets, a catalytic metal precursor, and an optional blowing agent in a liquid to form a graphene/Si dispersion, wherein said Si particles have a diameter from 0.2 \u03bcm to 20 \u03bcm and contain pure Si having at least 99.9% by weight of Si element or a Si alloy or mixture having from 70% to 99.9% by weight of Si therein; (b) dispensing and depositing said graphene/Si dispersion onto a surface of a supporting substrate to form a wet layer of graphene/Si mixture and partially or completely removing said liquid medium from the wet layer of graphene/Si mixture to form a dried layer of graphene/Si mixture material; and (c) exposing said dried layer of graphene/Si mixture to a high temperature environment from 100\u00b0 C. to 2,000\u00b0 C., for a period of time sufficient to thermally convert said catalytic metal precursor to a coating or nanoparticles of a catalyst metal deposited on surfaces of Si particles and/or surfaces of graphene sheets, to induce volatile gas molecules from said graphene sheets or to activate said blowing agent for producing said graphene foam, and, concurrently or sequentially, to enable a catalyst metal-catalyzed growth of multiple Si nanowires emanating from said Si particles in pores of said graphene foam to form said anode electrode layer; wherein said Si nanowires have a diameter less than 100 nm and a length-to-diameter aspect ratio of at least 5 and said Si nanowires are in an amount from 0.5% to 95% by weight based on the total weight of said graphene foam and said Si nanowires combined.

Metadata:
- Claim Count in Document: 41.0
- Percentile: 93.0
- Lexical Diversity: 2.0
- Patent Class: 429.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15287078', '14545108', '15427863', '14121151', '15651528']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9193780935208804
- 35 USC 102 Novelty (BERT): 0.6411162990488017
- Combined Prediction Score: 0.8915519140736726
- Mean Citation Score: 560.169314
- Max Citation Score: 715.5594
- Similarity Product: 575.7638308979988

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