@article{oai:tsukuba.repo.nii.ac.jp:00027220,
 author = {市川, 淳士 and Kubota, Tadahiko and Ihara, Masayuki and Katayama, Shinichi and Nakai, Hideki and Ichikawa, Junji},
 journal = {Journal of power sources},
 month = {Jun},
 note = {Five 1,1-difluoro-1-alkenes bearing aryl groups are investigated as electrolyteadditives for high-charge-voltage lithiumionbatteries with an aim to induce favorable solid electrolyte interphase (SEI) formation. Among them, 1,1-difluoro-4-phenylbut-1-ene (DF-1) forms appropriate SEIs on the cathode and anode by its reactions under oxidative and reductive conditions, respectively, which was suggested by linear sweep and cyclic voltammetry. The SEIs formed with the DF-1 containing electrolyte on the cathode and anode were analyzed by X-ray photoelectron spectroscopy and time of flight-secondary ion mass spectrometry, indicating the following: (i) the cathode surface has a LiF-rich layer with unsaturated hydrocarbons, and (ii) the anode surface also has a LiF-rich layer, which probably includes fluoromethylene (CHF) compounds. The formation of the SEIs on both electrodes with DF-1 results in low impedance being maintained, and thus, particularly good cycle performance even at high-charge-voltage.},
 pages = {141--149},
 title = {1,1-Difluoro-1-alkenes as New Electrolyte Additives for Lithium Ion Batteries},
 volume = {207},
 year = {2012}
}