PATENT CLAIM ANALYSIS

Application Number: 15915846
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-09
Patent Classification: ["429", "483000"]

Abstract:
A polymer electrolyte membrane fuel cell includes a proton-conductive polymer electrolyte membrane, an anode catalyst layer overlying a first face of the polymer electrolyte membrane, and a cathode catalyst layer overlying a second face of the polymer electrolyte membrane. At least one of the anode catalyst layer or the cathode catalyst layer includes a composite electrode layer that comprises a colloidal or soluble ionomer binder component, a catalyst dispersed along with the colloidal or soluble ionomer binder component, and insoluble ionomer nanofibers disseminated throughout a thickness of the composite electrode layer. The presence of the insoluble ionomer nanofibers within the composite electrode layer may enhance the voltage performance of the fuel cell, particularly at high current densities and/or low relative humidity operating conditions. A method of making a composite electrode layer for a polymer electrolyte membrane fuel cell is also disclosed.

Claim (Index 10):
A polymer electrolyte membrane fuel cell comprising:\n a proton-conductive solid polymer electrolyte membrane, the polymer electrolyte membrane having a first face and an opposed second face; an anode catalyst layer overlying the first face of the polymer electrolyte; a cathode catalyst layer overlying the second face of the polymer electrolyte, the cathode catalyst layer being a composite electrode layer that comprises a colloidal or soluble ionomer binder component, a catalyst dispersed along with the soluble ionomer binder component, and ionomer nanofibers disseminated throughout a thickness of the composite electrode layer so as to establish a random network of proton transport pathways across the thickness of the composite electrode layer from a first major face to a second major face of the composite electrode layer; a first gas diffusion media layer overlying the anode catalyst layer; a second gas diffusion media layer overlying the cathode catalyst layer; a first electrically-conductive flow field plate overlying the first gas diffusion media layer and configured to deliver hydrogen gas to the anode catalyst layer; and a second electrically-conductive flow field plate overlying the second gas diffusion media layer and configured to deliver an oxidant gas to the cathode catalyst layer.

Metadata:
- Claim Count in Document: 10.0
- Percentile: 90.0
- Lexical Diversity: 2.20588
- Patent Class: 429.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['12203559', '13872953', '10664345', '11704873', '13833368']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8940500629501845
- 35 USC 102 Novelty (BERT): 0.5238394541196246
- Combined Prediction Score: 0.8570290020671285
- Mean Citation Score: 340.430832
- Max Citation Score: 363.87405
- Similarity Product: 285.8418666332066

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