TY - JOUR
T1 - Effect of vacuum carbonization treatment on the irreversible capacity of hard carbon prepared from biomass material
AU - Liu, Tao
AU - Luo, Ruiying
AU - Yoon, Seong Ho
AU - Mochida, Isao
N1 - Funding Information:
The present authors acknowledge the financial support of Japan Science and Technology Corporation (JST) of Japan .
PY - 2010/1/15
Y1 - 2010/1/15
N2 - The large irreversible capacity of hard carbon limits its widespread commercialization for Li-ion batteries. To reduce the initial irreversible capacity of hard carbon, we investigated the effect of carbonization treatment of the precursor under vacuum on the irreversible capacity of resultant hard carbon. Compared with the sample carbonized under Ar atmosphere, the sample carbonized under vacuum obtained a lower irreversible capacity of 58 mA h g- 1, due to the formation of pyrolytic carbon film on the surface, and the reduction of BET surface area, amount of heteroatoms and hydroxyl groups.
AB - The large irreversible capacity of hard carbon limits its widespread commercialization for Li-ion batteries. To reduce the initial irreversible capacity of hard carbon, we investigated the effect of carbonization treatment of the precursor under vacuum on the irreversible capacity of resultant hard carbon. Compared with the sample carbonized under Ar atmosphere, the sample carbonized under vacuum obtained a lower irreversible capacity of 58 mA h g- 1, due to the formation of pyrolytic carbon film on the surface, and the reduction of BET surface area, amount of heteroatoms and hydroxyl groups.
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U2 - 10.1016/j.matlet.2009.10.011
DO - 10.1016/j.matlet.2009.10.011
M3 - Article
AN - SCOPUS:70350735848
SN - 0167-577X
VL - 64
SP - 74
EP - 76
JO - Materials Letters
JF - Materials Letters
IS - 1
ER -