Influence of Morphology of Highly Ordered Mesoporous Carbon Replica on Electrochemical Properties of Air Electrodes with Pt-Ru Electrocatalyst/Carbon Replica Support in Nonaqueous Electrolyte Solution

Masahiko HAYASHI; Shuhei SAKAMOTO; Masaya NOHARA; Mikayo IWATA; Kota SUZUKI; Masaaki HIRAYAMA; Jiro NAKAMURA; Hajime ARAI; Ryoji KANNO; Takeshi KOMATSU

doi:10.5796/electrochemistry.18-00046

Articles

Influence of Morphology of Highly Ordered Mesoporous Carbon Replica on Electrochemical Properties of Air Electrodes with Pt-Ru Electrocatalyst/Carbon Replica Support in Nonaqueous Electrolyte Solution

Masahiko HAYASHI, Shuhei SAKAMOTO , Masaya NOHARA, Mikayo IWATA, Kota SUZUKI, Masaaki HIRAYAMA, Jiro NAKAMURA, Hajime ARAI, Ryoji KANNO, Takeshi KOMATSU

Author information

Masahiko HAYASHI
NTT Device Technology Laboratories, NTT Corporation
Shuhei SAKAMOTO Corresponding author
NTT Device Technology Laboratories, NTT Corporation
Masaya NOHARA
NTT Device Technology Laboratories, NTT Corporation
Mikayo IWATA
NTT Device Technology Laboratories, NTT Corporation
Kota SUZUKI
Department of Electronic Chemistry, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology
All-Solid-State Battery Unit, Institute of Innovative Research, Tokyo Institute of Technology
Masaaki HIRAYAMA
Department of Electronic Chemistry, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology
All-Solid-State Battery Unit, Institute of Innovative Research, Tokyo Institute of Technology
Jiro NAKAMURA
Department of Electronic Chemistry, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology
Hajime ARAI
Department of Electronic Chemistry, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology
All-Solid-State Battery Unit, Institute of Innovative Research, Tokyo Institute of Technology
Ryoji KANNO
Department of Electronic Chemistry, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology
All-Solid-State Battery Unit, Institute of Innovative Research, Tokyo Institute of Technology
Takeshi KOMATSU
NTT Device Technology Laboratories, NTT Corporation

Keywords: Lithium Air Battery, Highly Ordered Mesoporous Carbon, Carbon Replica, Electrocatalyst

JOURNAL FREE ACCESS

2019 Volume 87 Issue 1 Pages 52-58

DOI https://doi.org/10.5796/electrochemistry.18-00046

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Abstract

Electrochemical properties of lithium air battery (LAB) cells incorporating highly ordered mesoporous carbon replica (CR) support materials were examined in nonaqueous electrolyte solution of 1 mol/l LiTFSA/TEGDME. The CR support was prepared with pore sizes of 10, 40, and 100 nm. The cycle properties of the LAB cells with the CR support was improved by using Pt-Ru electroctalyst. As a result, the LAB cells with Pt-Ru electrocatalyst/CR (pore size: 10 nm) exhibited the highest performance of the first discharge capacity of 1000 mAh/g and capacity retention of about 50% at 10th cycle. Moreover, different growth behavior of the discharge product was observed as a consequence of the pore size of the CR support.

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