TY - JOUR
T1 - On the electrochemical and thermal behavior of lithium bis(oxalato)borate (LiBOB) solutions
AU - Larush-Asraf, L.
AU - Biton, M.
AU - Teller, H.
AU - Zinigrad, E.
AU - Aurbach, D.
PY - 2007/12/6
Y1 - 2007/12/6
N2 - In recent years, lithium bis(oxalato)borate, LiB(C2O4)2 (LiBOB) has been proposed as an alternative salt to the commonly used electrolyte, LiPF6. There is evidence of the enhanced stability of Li-ion battery electrodes in solutions of this salt, due to a unique surface chemistry developed in LiBOB solutions. The present study is aimed at further exploring the electrochemical and thermal properties of LiBOB solutions in mixtures of alkyl carbonates with non-active metal, graphite and lithium electrodes. FTIR spectroscopy, XPS, EQCM, in situ AFM imaging, and DSC were used in conjunction with standard electrochemical techniques. The study also included a comparison between LiBOB and LiPF6 solutions. The development of a favorable surface chemistry in LiBOB solutions that provides better passivation to Li and Li-graphite electrodes was clearly evident.
AB - In recent years, lithium bis(oxalato)borate, LiB(C2O4)2 (LiBOB) has been proposed as an alternative salt to the commonly used electrolyte, LiPF6. There is evidence of the enhanced stability of Li-ion battery electrodes in solutions of this salt, due to a unique surface chemistry developed in LiBOB solutions. The present study is aimed at further exploring the electrochemical and thermal properties of LiBOB solutions in mixtures of alkyl carbonates with non-active metal, graphite and lithium electrodes. FTIR spectroscopy, XPS, EQCM, in situ AFM imaging, and DSC were used in conjunction with standard electrochemical techniques. The study also included a comparison between LiBOB and LiPF6 solutions. The development of a favorable surface chemistry in LiBOB solutions that provides better passivation to Li and Li-graphite electrodes was clearly evident.
KW - AFM
KW - EQCM
KW - Graphite
KW - LiBOB
KW - Thermal analysis
UR - http://www.scopus.com/inward/record.url?scp=36148969640&partnerID=8YFLogxK
U2 - 10.1016/j.jpowsour.2007.06.171
DO - 10.1016/j.jpowsour.2007.06.171
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AN - SCOPUS:36148969640
SN - 0378-7753
VL - 174
SP - 400
EP - 407
JO - Journal of Power Sources
JF - Journal of Power Sources
IS - 2
ER -
