TY - JOUR
T1 - Electrochemical properties of an all-solid-state lithium-ion battery with an in-situ formed electrode material grown from a lithium conductive glass ceramics sheet
AU - Amiki, Yuichi
AU - Sagane, Fumihiro
AU - Yamamoto, Kazuo
AU - Hirayama, Tsukasa
AU - Sudoh, Masao
AU - Motoyama, Munekazu
AU - Iriyama, Yasutoshi
N1 - Funding Information:
This work was financially supported by JST-ALCA and in-part by NEDO-RISING . The authors would like to give special thanks to Dr. Toru Asaka, Nagoya Institute of Technology, for his help with EELS measurements.
PY - 2013
Y1 - 2013
N2 - A lithium insertion reaction in a Li+ conductive glass ceramics solid electrolyte (lithium aluminum titanium phosphate: LATP) sheet produces an in-situ formed electrode active material, which operates at 2.35 V vs. Li/Li+ in the vicinity of the LATP-sheet/current-collector interface. Electron energy loss spectroscopy clarifies that titanium in the LATP sheet in the vicinity of the current collector/LATP-sheet interface is preferentially reduced by this lithium insertion reaction. Charge transfer resistance between the in-situ-formed-electrode and the LATP-sheet is less than 100 Ω cm 2, which is smaller than that of the common LiPON/LiCoO2 interface. A thin film of LiCoO2 is deposited on one side of the LATP-sheet as a Li+ source for developing the in-situ formed electrode material. Eventually, a Pt/LATP-sheet/LiCoO2/Au multilayer is fabricated. The multilayer structure successfully works as an all-solid-state lithium-ion battery operating at 1.5 V. A redox peak of the battery is observed even at 100 mV s-1 in the potential sweep curve. Additionally, charge-discharge reactions are repeated stably even after 25 cycles.
AB - A lithium insertion reaction in a Li+ conductive glass ceramics solid electrolyte (lithium aluminum titanium phosphate: LATP) sheet produces an in-situ formed electrode active material, which operates at 2.35 V vs. Li/Li+ in the vicinity of the LATP-sheet/current-collector interface. Electron energy loss spectroscopy clarifies that titanium in the LATP sheet in the vicinity of the current collector/LATP-sheet interface is preferentially reduced by this lithium insertion reaction. Charge transfer resistance between the in-situ-formed-electrode and the LATP-sheet is less than 100 Ω cm 2, which is smaller than that of the common LiPON/LiCoO2 interface. A thin film of LiCoO2 is deposited on one side of the LATP-sheet as a Li+ source for developing the in-situ formed electrode material. Eventually, a Pt/LATP-sheet/LiCoO2/Au multilayer is fabricated. The multilayer structure successfully works as an all-solid-state lithium-ion battery operating at 1.5 V. A redox peak of the battery is observed even at 100 mV s-1 in the potential sweep curve. Additionally, charge-discharge reactions are repeated stably even after 25 cycles.
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U2 - 10.1016/j.jpowsour.2013.05.006
DO - 10.1016/j.jpowsour.2013.05.006
M3 - Article
AN - SCOPUS:84878589941
SN - 0378-7753
VL - 241
SP - 583
EP - 588
JO - Journal of Power Sources
JF - Journal of Power Sources
ER -
