Investigation of durability of MEAs at higher temperature

Masahiko Kitamura; Zhiyun Noda; Junko Matsuda; Akari Hayashi; Kazunari Sasaki

doi:10.1149/06917.0701ecst

Investigation of durability of MEAs at higher temperature

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

For the next generation polymer electrolyte fuel cell (PEFC), increase in operating temperature above 100 °C is desired in order to improve the cathode overvoltage. The objective of this study is to understand degradation phenomena of cathode catalysts by simulating fuel cell vehicle-s "load cycles", where Pt dissolution/reprecipitation reaction occurs. Standard membrane-electrode-assemblies (MEAs) made with Nafion^® membrane were evaluated under increased temperature like 105 °C and also under reduced humidity condition like RH57%. As a result, comparing to the standard operating condition (80 °C and RH100%), Pt enlargement was suppressed at RH57% owing to the presence of smaller amount of water. However, degradation of Nafion^® ionomer under low humidity condition led to lowering MEA performance. Furthermore, at higher temperature, in addition to Nafion^® degradation, enhanced Pt enlargement was recognized and became a serious problem on MEA performance.

Original language	English
Title of host publication	Polymer Electrolyte Fuel Cells 15, PEFC 15
Editors	H. A. Gasteiger, A. Z. Weber, V. K. Ramani, T. F. Fuller, R. A. Mantz, H. Uchida, F. N. Buchi, M. Edmundson, C. Coutanceau, J. M. Fenton, S. Mitsushima, T. J. Schmidt, K. Shinohara, K. Swider-Lyons, D. J. Jones, B. S. Pivovar, K. E. Ayers, K. A. Perry, S. R. Narayanan, P. Strasser
Publisher	Electrochemical Society Inc.
Pages	701-708
Number of pages	8
Edition	17
ISBN (Electronic)	9781607685395
DOIs	https://doi.org/10.1149/06917.0701ecst
Publication status	Published - 2015
Event	Symposium on Polymer Electrolyte Fuel Cells 15, PEFC 2015 - 228th ECS Meeting - Phoenix, United States Duration: Oct 11 2015 → Oct 15 2015

Publication series

Name	ECS Transactions
Number	17
Volume	69
ISSN (Print)	1938-6737
ISSN (Electronic)	1938-5862

Other

Other	Symposium on Polymer Electrolyte Fuel Cells 15, PEFC 2015 - 228th ECS Meeting
Country/Territory	United States
City	Phoenix
Period	10/11/15 → 10/15/15

All Science Journal Classification (ASJC) codes

General Engineering

Access to Document

10.1149/06917.0701ecst

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Kitamura, M., Noda, Z., Matsuda, J., Hayashi, A., & Sasaki, K. (2015). Investigation of durability of MEAs at higher temperature. In H. A. Gasteiger, A. Z. Weber, V. K. Ramani, T. F. Fuller, R. A. Mantz, H. Uchida, F. N. Buchi, M. Edmundson, C. Coutanceau, J. M. Fenton, S. Mitsushima, T. J. Schmidt, K. Shinohara, K. Swider-Lyons, D. J. Jones, B. S. Pivovar, K. E. Ayers, K. A. Perry, S. R. Narayanan, & P. Strasser (Eds.), Polymer Electrolyte Fuel Cells 15, PEFC 15 (17 ed., pp. 701-708). (ECS Transactions; Vol. 69, No. 17). Electrochemical Society Inc.. https://doi.org/10.1149/06917.0701ecst

Investigation of durability of MEAs at higher temperature. / Kitamura, Masahiko; Noda, Zhiyun ; Matsuda, Junko et al.
Polymer Electrolyte Fuel Cells 15, PEFC 15. ed. / H. A. Gasteiger; A. Z. Weber; V. K. Ramani; T. F. Fuller; R. A. Mantz; H. Uchida; F. N. Buchi; M. Edmundson; C. Coutanceau; J. M. Fenton; S. Mitsushima; T. J. Schmidt; K. Shinohara; K. Swider-Lyons; D. J. Jones; B. S. Pivovar; K. E. Ayers; K. A. Perry; S. R. Narayanan; P. Strasser. 17. ed. Electrochemical Society Inc., 2015. p. 701-708 (ECS Transactions; Vol. 69, No. 17).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Kitamura, M, Noda, Z , Matsuda, J , Hayashi, A & Sasaki, K 2015, Investigation of durability of MEAs at higher temperature. in HA Gasteiger, AZ Weber, VK Ramani, TF Fuller, RA Mantz, H Uchida, FN Buchi, M Edmundson, C Coutanceau, JM Fenton, S Mitsushima, TJ Schmidt, K Shinohara, K Swider-Lyons, DJ Jones, BS Pivovar, KE Ayers, KA Perry, SR Narayanan & P Strasser (eds), Polymer Electrolyte Fuel Cells 15, PEFC 15. 17 edn, ECS Transactions, no. 17, vol. 69, Electrochemical Society Inc., pp. 701-708, Symposium on Polymer Electrolyte Fuel Cells 15, PEFC 2015 - 228th ECS Meeting, Phoenix, United States, 10/11/15. https://doi.org/10.1149/06917.0701ecst

Kitamura M, Noda Z , Matsuda J , Hayashi A , Sasaki K. Investigation of durability of MEAs at higher temperature. In Gasteiger HA, Weber AZ, Ramani VK, Fuller TF, Mantz RA, Uchida H, Buchi FN, Edmundson M, Coutanceau C, Fenton JM, Mitsushima S, Schmidt TJ, Shinohara K, Swider-Lyons K, Jones DJ, Pivovar BS, Ayers KE, Perry KA, Narayanan SR, Strasser P, editors, Polymer Electrolyte Fuel Cells 15, PEFC 15. 17 ed. Electrochemical Society Inc. 2015. p. 701-708. (ECS Transactions; 17). doi: 10.1149/06917.0701ecst

Kitamura, Masahiko ; Noda, Zhiyun ; Matsuda, Junko et al. / Investigation of durability of MEAs at higher temperature. Polymer Electrolyte Fuel Cells 15, PEFC 15. editor / H. A. Gasteiger ; A. Z. Weber ; V. K. Ramani ; T. F. Fuller ; R. A. Mantz ; H. Uchida ; F. N. Buchi ; M. Edmundson ; C. Coutanceau ; J. M. Fenton ; S. Mitsushima ; T. J. Schmidt ; K. Shinohara ; K. Swider-Lyons ; D. J. Jones ; B. S. Pivovar ; K. E. Ayers ; K. A. Perry ; S. R. Narayanan ; P. Strasser. 17. ed. Electrochemical Society Inc., 2015. pp. 701-708 (ECS Transactions; 17).

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title = "Investigation of durability of MEAs at higher temperature",

abstract = "For the next generation polymer electrolyte fuel cell (PEFC), increase in operating temperature above 100 °C is desired in order to improve the cathode overvoltage. The objective of this study is to understand degradation phenomena of cathode catalysts by simulating fuel cell vehicle-s {"}load cycles{"}, where Pt dissolution/reprecipitation reaction occurs. Standard membrane-electrode-assemblies (MEAs) made with Nafion{\textregistered} membrane were evaluated under increased temperature like 105 °C and also under reduced humidity condition like RH57\%. As a result, comparing to the standard operating condition (80 °C and RH100\%), Pt enlargement was suppressed at RH57\% owing to the presence of smaller amount of water. However, degradation of Nafion{\textregistered} ionomer under low humidity condition led to lowering MEA performance. Furthermore, at higher temperature, in addition to Nafion{\textregistered} degradation, enhanced Pt enlargement was recognized and became a serious problem on MEA performance.",

author = "Masahiko Kitamura and Zhiyun Noda and Junko Matsuda and Akari Hayashi and Kazunari Sasaki",

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year = "2015",

doi = "10.1149/06917.0701ecst",

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AU - Kitamura, Masahiko

AU - Noda, Zhiyun

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AU - Hayashi, Akari

AU - Sasaki, Kazunari

N1 - Publisher Copyright: © The Electrochemical Society.

PY - 2015

Y1 - 2015

N2 - For the next generation polymer electrolyte fuel cell (PEFC), increase in operating temperature above 100 °C is desired in order to improve the cathode overvoltage. The objective of this study is to understand degradation phenomena of cathode catalysts by simulating fuel cell vehicle-s "load cycles", where Pt dissolution/reprecipitation reaction occurs. Standard membrane-electrode-assemblies (MEAs) made with Nafion® membrane were evaluated under increased temperature like 105 °C and also under reduced humidity condition like RH57%. As a result, comparing to the standard operating condition (80 °C and RH100%), Pt enlargement was suppressed at RH57% owing to the presence of smaller amount of water. However, degradation of Nafion® ionomer under low humidity condition led to lowering MEA performance. Furthermore, at higher temperature, in addition to Nafion® degradation, enhanced Pt enlargement was recognized and became a serious problem on MEA performance.

AB - For the next generation polymer electrolyte fuel cell (PEFC), increase in operating temperature above 100 °C is desired in order to improve the cathode overvoltage. The objective of this study is to understand degradation phenomena of cathode catalysts by simulating fuel cell vehicle-s "load cycles", where Pt dissolution/reprecipitation reaction occurs. Standard membrane-electrode-assemblies (MEAs) made with Nafion® membrane were evaluated under increased temperature like 105 °C and also under reduced humidity condition like RH57%. As a result, comparing to the standard operating condition (80 °C and RH100%), Pt enlargement was suppressed at RH57% owing to the presence of smaller amount of water. However, degradation of Nafion® ionomer under low humidity condition led to lowering MEA performance. Furthermore, at higher temperature, in addition to Nafion® degradation, enhanced Pt enlargement was recognized and became a serious problem on MEA performance.

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Investigation of durability of MEAs at higher temperature

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