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BSI PD IEC/TS 62282-7-1:2017

BSI PD IEC/TS 62282-7-1:2017

$215.11

Fuel cell technologies – Test methods. Single cell performance tests for polymer electrolyte fuel cells (PEFC)

Published By Publication Date Number of Pages
BSI 2017 78
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This document covers cell assemblies, test station setup, measuring instruments and measuring methods, performance test methods, and test reports for PEFC single cells.

This document is used for evaluating:

  1. the performance of membrane electrode assemblies (MEAs) for PEFCs in a single cell configuration;

  2. materials or structures of PEFCs in a single cell configuration; or,

  3. the influence of impurities in fuel and/or in air on the fuel cell performance.

PDF Catalog

PDF Pages PDF Title
4 CONTENTS
9 FOREWORD
11 INTRODUCTION
12 1 Scope
2 Normative references
3 Terms and definitions
16 4 General safety considerations
5 Cell components
5.1 General
5.2 Membrane electrode assembly (MEA)
5.3 Gasket
5.4 Flow plate
17 5.5 Current collector
5.6 Clamping plate (or pressure plate)
5.7 Clamping hardware
5.8 Temperature-control device
18 6 Cell assembly
6.1 Assembly procedure
6.2 Cell orientation and gas connections
6.3 Leak check
7 Test station setup
7.1 Minimum equipment requirement
19 7.2 Schematic diagram
Figures
Figure 1 – Test station schematic diagram for single cell testing
20 7.3 Maximum variation in test station controls (inputs to test)
8 Measuring instruments
8.1 Instrument uncertainty
8.2 Measuring instruments and measuring methods
8.2.1 General
8.2.2 Voltage
8.2.3 Current
21 8.2.4 Internal resistance (IR)
8.2.5 Fuel and oxidant flow rates
8.2.6 Fuel and oxidant temperature
8.2.7 Cell temperature
8.2.8 Fuel and oxidant pressures
22 8.2.9 Fuel and oxidant humidity
8.2.10 Ambient conditions
8.3 Measurement units
23 9 Gas composition
9.1 Fuel composition
9.1.1 Hydrogen
9.1.2 Reformed gases
9.2 Oxidant composition
10 Test preparation
10.1 Standard test conditions
Tables
Table 1 – Parameters and units
24 10.2 Ambient conditions
10.3 Data sampling rate
10.4 Repeatability and reproducibility
10.5 Number of test samples
Figure 2 – Typical testing flowchart
25 10.6 Leak check of gas circuit with inert or test gas
10.7 Initial conditioning and stable state check
10.8 Shutdown
10.9 Reconditioning
11 Basic performance test methods
11.1 General
26 11.2 Polarization curve tests
11.2.1 General
11.2.2 Polarization curves at constant gas stoichiometries
27 11.2.3 Polarization curves at constant flow rate
11.3 Steady-state test
11.3.1 General
11.3.2 Test methods
28 11.4 Long-term operation test
11.4.1 General
11.4.2 Test method
11.5 Voltammetry
11.5.1 General
29 11.5.2 Hydrogen crossover test
30 11.5.3 Electrochemical surface area (ECA) measurement
Figure 3 – Hydrogen crossover test
31 Figure 4 – Determination of adsorption/desorption charge (qh)
32 11.6 Internal resistance (IR) measurement
11.6.1 General
Figure 5 – Determination of CO desorption charge (qco)
33 11.6.2 Test methods
Figure 6 – Measurement of ΔVCI
34 11.7 Electrochemical impedance spectroscopy (EIS)
11.7.1 General
11.7.2 Test conditions
11.7.3 Test method
35 11.7.5 IR measurement by EIS
12 Applied performance test methods
Figure 7 – Typical diagram of a complex impedance plot
36 Table 2 – Applied performance tests
37 13 Test report
13.1 General
13.2 Report items
13.3 Test data description
38 13.4 Description of measurement conditions
13.5 Test cell parameter description
39 Annex A (informative)Flow plate
40 Figure A.1 – Design for flow plate (single-serpentine flow channel)
Figure A.2 – Design for flow plate (triple-serpentine flow channel)
41 Annex B (informative)Cell component alignment
Figure B.1 – Single cell assembly using typical components
42 Annex C (informative)Leak test
C.1 Purpose
C.2 Test procedures
44 Annex D (informative)Initial conditioning
45 Annex E (informative)Shutdown
46 Annex F (informative)Reconditioning protocols
47 Annex G (informative)Polarization curve test supplement
Table G.1 – Current density increments if maximum current density is known
48 Table G.2 – Current density increments if maximum current density is unknown
49 Annex H (normative)Applied performance tests
H.1 Gain tests
H.1.1 Hydrogen gain test
H.1.2 Oxygen gain test
50 H.2 Gas stoichiometry tests
H.2.1 Fuel stoichiometry test
H.2.2 Oxidant stoichiometry test
51 H.3 Temperature effect test
H.3.1 General
H.3.2 Test method
H.4 Pressure effect test
H.4.1 General
H.4.2 Test method
H.5 Humidity effect tests
H.5.1 Fuel humidity effect test
52 H.5.2 Oxidant humidity effect test
H.6 Limiting current test
H.6.1 General
H.6.2 Test method
53 H.7 Overload test
H.7.1 General
H.7.2 Test method
H.8 Subzero storage test
H.8.1 General
H.8.2 Test method
54 H.9 Subzero start test
H.9.1 General
H.9.2 Test method
H.10 Membrane swelling test (humidity cycle test)
H.10.1 General
55 H.10.2 Test conditions
H.10.3 Test method
H.11 Open circuit voltage (OCV) test
H.11.1 General
H.11.2 Test conditions
56 H.11.3 Test method
H.12 Oxygen reduction reaction (ORR) activity test
H.12.1 General
H.12.2 Test conditions
H.12.3 Test method
57 Figure H.1 – ORR activity test procedure
58 H.13 Fuel composition test
H.13.1 General
H.13.2 Test method
H.14 Cycling tests
H.14.1 Start/stop cycling test
Figure H.2 – Example of Tafel plot
59 H.14.2 Load cycling test
H.14.3 Potential cycle test (start/stop durability)
60 H.14.4 Potential cycle test (load cycle durability)
Figure H.3 – Potential cycle test (start/stop durability) procedure
61 H.15 Impurity influence tests
H.15.1 Influence at rated current density
Figure H.4 – Potential cycle test (load cycle durability) procedure
62 H.15.2 Influence on polarization curves
63 H.15.3 Long-term impurity influence test
64 Annex I (informative)Test report for polarization curve tests
I.1 General
I.2 General information
I.2.1 General information on the test report
I.2.2 General information concerning the test
I.3 Introductory remarks
I.4 Objective and scope of the test
65 I.5 Description of cell components
I.6 Background
66 I.7 Description of the test setup
I.8 Description of operating conditions, inputs and outputs
67 Table I.1 – Test input parameters
68 I.9 Test procedure and results
I.9.1 Description of startup and conditioning
I.9.2 Description of shutdown (when relevant)
I.9.3 Description of measurement and results
Table I.2 – Test output parameters
Table I.3 – Cell performance during startup and conditioning
69 I.9.4 Deviation from test procedures
I.10 Data post-processing
I.11 Conclusion and acceptance criteria
Table I.4 – Cell performance during test
70 Annex J (informative)Polarization curves in helox
Figure J.1 – Illustration of losses identified by comparison of polarization curves in oxygen, helox and air
71 Annex K (informative)Test report for subzero start test
Table K.1 – Energy consumption, gas consumption and heat balance data during subzero startup
Table K.2 – Cell characteristics comparison before and after subzero testing
72 Annex L (informative) Start/stop cycling test supplement
73 Annex M (informative)Load cycling test supplement
Figure M.1 – Dynamic load cycling profile.
Figure M.2 – Second dynamic load cycling profile
74 Figure M.3 – Dynamic load cycling based on road vehicle driving
75 Bibliography

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