Abstract
This study investigates the requirements of lithium-air cathodes, which directly influence discharge capacity. The cathodes of Li-air cell are made by using five different carbon materials, such as Ketjen black EC600JD, Super P, Ketjen black EC300JD, Denka black, and Ensaco 250G. The Ketjen black EC600JD provides discharge capacity of 2600 mAh/g per carbon weight, while that of Ensaco 250G shows only 579 mAh/g. To figure out the differences of discharge capacity from carbon materials, their surface area and pore volume are analyzed. These are found out to be the critical factors in determining discharge capacity. Furthermore, carbon loading on Ni foam and amounts of electrolyte are significant factors that affect discharge capacity. In order to investigate catalyst effect, electrolytic manganese dioxide (EMD) is incorporated and delivered 4307 mAh/g per carbon weight. This infers that EMD facilitates to break O2 interactions and leads to enhance discharge capacity.
| Original language | English |
|---|---|
| Pages (from-to) | 3221-3224 |
| Number of pages | 4 |
| Journal | Bulletin of the Korean Chemical Society |
| Volume | 31 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2010 Nov 20 |
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Keywords
- Air electrode
- Cathode requirements
- Li-air battery
ASJC Scopus subject areas
- Chemistry(all)
Cite this
Electrochemical performances of lithium-air cell with carbon materials. / Park, C. K.; Park, S. B.; Lee, S. Y.; Lee, H.; Jang, Ho; Cho, W. I.
In: Bulletin of the Korean Chemical Society, Vol. 31, No. 11, 20.11.2010, p. 3221-3224.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Electrochemical performances of lithium-air cell with carbon materials
AU - Park, C. K.
AU - Park, S. B.
AU - Lee, S. Y.
AU - Lee, H.
AU - Jang, Ho
AU - Cho, W. I.
PY - 2010/11/20
Y1 - 2010/11/20
N2 - This study investigates the requirements of lithium-air cathodes, which directly influence discharge capacity. The cathodes of Li-air cell are made by using five different carbon materials, such as Ketjen black EC600JD, Super P, Ketjen black EC300JD, Denka black, and Ensaco 250G. The Ketjen black EC600JD provides discharge capacity of 2600 mAh/g per carbon weight, while that of Ensaco 250G shows only 579 mAh/g. To figure out the differences of discharge capacity from carbon materials, their surface area and pore volume are analyzed. These are found out to be the critical factors in determining discharge capacity. Furthermore, carbon loading on Ni foam and amounts of electrolyte are significant factors that affect discharge capacity. In order to investigate catalyst effect, electrolytic manganese dioxide (EMD) is incorporated and delivered 4307 mAh/g per carbon weight. This infers that EMD facilitates to break O2 interactions and leads to enhance discharge capacity.
AB - This study investigates the requirements of lithium-air cathodes, which directly influence discharge capacity. The cathodes of Li-air cell are made by using five different carbon materials, such as Ketjen black EC600JD, Super P, Ketjen black EC300JD, Denka black, and Ensaco 250G. The Ketjen black EC600JD provides discharge capacity of 2600 mAh/g per carbon weight, while that of Ensaco 250G shows only 579 mAh/g. To figure out the differences of discharge capacity from carbon materials, their surface area and pore volume are analyzed. These are found out to be the critical factors in determining discharge capacity. Furthermore, carbon loading on Ni foam and amounts of electrolyte are significant factors that affect discharge capacity. In order to investigate catalyst effect, electrolytic manganese dioxide (EMD) is incorporated and delivered 4307 mAh/g per carbon weight. This infers that EMD facilitates to break O2 interactions and leads to enhance discharge capacity.
KW - Air electrode
KW - Cathode requirements
KW - Li-air battery
UR - http://www.scopus.com/inward/record.url?scp=78549265784&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78549265784&partnerID=8YFLogxK
U2 - 10.5012/bkcs.2010.31.11.3221
DO - 10.5012/bkcs.2010.31.11.3221
M3 - Article
AN - SCOPUS:78549265784
VL - 31
SP - 3221
EP - 3224
JO - Bulletin of the Korean Chemical Society
JF - Bulletin of the Korean Chemical Society
SN - 0253-2964
IS - 11
ER -