prEN IEC 62282-7-2:2024

SLOVENSKI STANDARD
01-april-2024
Tehnologije gorivnih celic - 7-2. del: Preskusne metode - Preskušanje zmogljivosti
ene celice in sestava celic s trdnim oksidnim gorivom
Fuel cell technologies - Part 7-2: Test methods - Single cell and stack performance tests
for solid oxide fuel cells (SOFCs)
Brennstoffzellentechnologien - Teil 7-2: Prüfverfahren - Prüfungen zum Nachweis des
Einzelzellen- und Stackleistungsverhaltens von Festoxid-Brennstoffzellen (SOFC)
Technologies des piles à combustible - Partie 7-2: Méthodes d’essai - Essais de
performance de cellule élémentaire et de pile pour les piles à combustible à oxyde solide
(SOFC)
Ta slovenski standard je istoveten z: prEN IEC 62282-7-2:2024
ICS:
27.070 Gorilne celice Fuel cells
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

105/1021/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 62282-7-2 ED2
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2024-02-09 2024-05-03
SUPERSEDES DOCUMENTS:
105/1002/CD, 105/1019/CC
IEC TC 105 : FUEL CELL TECHNOLOGIES
SECRETARIAT: SECRETARY:
Germany Mr David Urmann
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

Other TC/SCs are requested to indicate their interest, if any, in
this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of CENELEC,
is drawn to the fact that this Committee Draft for Vote (CDV) is
submitted for parallel voting.
The CENELEC members are invited to vote through the CENELEC
online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some Countries” clau ses to be
included should this proposal proceed. Recipients are reminded that the CDV stage is the final stage for submitting ISC c lauses.
(SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Fuel cell technologies - Part 7-2: Test methods - Single cell and stack performance tests for solid oxide fuel
cells (SOFCs)
PROPOSED STABILITY DATE: 2027
NOTE FROM TC/SC OFFICERS:
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without

permission in writing from IEC.

105/1021/CDV – 2 – IEC CDV 62282-7-2© IEC 2024
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and symbols. 8
3.1 Terms and definitions . 8
3.2 Symbols . 10
4 General safety conditions . 11
5 Cell/stack assembly unit . 11
6 Testing system . 12
6.1 Subsystems in testing system . 12
6.2 Maximum variation in control items of testing system . 14
7 Instruments and measurement methods . 14
7.1 General . 14
7.2 Instrument uncertainty . 14
7.3 Anode gas . 15
7.4 Cathode gas . 17
7.5 Output voltage . 18
7.6 Output current . 18
7.7 Cell/stack assembly unit temperature . 19
7.8 Mechanical load . 19
7.9 Total impedance . 19
7.10 Ambient conditions. 19
8 Test preparation . 19
8.1 General . 19
8.2 Standard test conditions and test range . 19
8.3 Components and impurities of anode gas and cathode gas . 20
8.4 Basis of the test procedure . 20
8.5 Confirmation of aging conditions of unit . 20
8.6 Confirmation of criteria of stable state . 20
8.7 Data acquisition method . 20
9 Test procedure . 21
9.1 Set-up . 21
9.2 Initial conditioning . 21
9.3 Shut-down . 21
10 Performance test . 21
10.1 Rated power test . 21
10.2 Current-voltage characteristics test . 22
10.3 Effective fuel utilization dependency test . 23
10.4 Long term durability test . 24
10.5 Thermal cycling durability test . 25
10.6 Internal reforming performance test . 26
10.7 Resistance components identification test . 27
11 Test report . 28

IEC CDV 62282-7-2 © IEC 2024 – 3 – 105/1021/CDV
11.1 General . 28
11.2 Report items . 29
11.3 Test unit data description . 29
11.4 Test conditions description. 29
11.5 Test data description . 29
11.6 Uncertainty evaluation . 30
Annex A (informative) Example of cell assembly unit . 31
Annex B (informative) Calculation of effective fuel utilization . 32
B.1 General . 32
B.2 Calculation method . 32
B.3 Calculation examples . 33
Annex C (informative) Calculation of effective oxygen utilization . 35
C.1 General . 35
C.2 Calculation method . 35
C.3 Calculation example . 36
Annex D (informative) Maximum width of the voltage hysteresis in I‑V characteristics test . 37
Annex E (informative) Current-voltage characteristics test under constant effective
fuel utilization . 38
Annex F (informative) Test report (template) . 39
F.1 Overview. 39
F.2 General information . 39
F.3 Test unit data description . 39
F.4 Test conditions . 40
F.5 Rated power test . 40
F.6 Current-voltage characteristics test . 40
F.7 Effective fuel utilization dependency test . 41
F.8 Long-term durability test . 42
F.9 Thermal cycling durability test . 43
F.10 Internal reforming performance test . 44
F.11 Resistance components identification test . 44
Annex G (informative) Method for determining instrument uncertainty . 45
Bibliography . 46

Figure 1 – Testing system . 12
Figure 2 – Typical diagram of complex impedance plot for SOFC . 28
Figure A.1 – Example of cell assembly unit . 31
Figure D.1 – Voltage hysteresis at a given sweep rate in I-V characteristics test . 37
Figure E.1 – Example of the record in current-voltage characteristics test under
constant effective fuel utilization . 38

Table 1 – Symbols . 10
Table B.1 − n for representative fuels . 33
j
Table B.2 − Anode gas composition, flow rate of each fuel component q , and n q . 33
j j j
Table C.1 − Cathode gas composition, q , and I . 36
O2 theory
105/1021/CDV – 4 – IEC CDV 62282-7-2© IEC 2024

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FUEL CELL TECHNOLOGIES –
Part 7-2: Test methods – Single cell and
stack performance tests for solid oxide fuel cells (SOFCs)

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC Publication(s)"). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
...