TY - JOUR
T1 - Enhanced Electrochemical and Transportation Properties in a NASICON-Type Na3Zr2(SiO4)2(PO4)-Na3Ti2(PO4)3 Junction Prepared by Spin Coating and Glass-Ceramic Processes
AU - Jia, Shufan
AU - Ohno, Saneyuki
AU - Wang, Jian
AU - Hasegawa, George
AU - Akamatsu, Hirofumi
AU - Hayashi, Katsuro
N1 - Funding Information:
This work was supported by Grant-in-Aid for Scientific Research (19H00828) from the Japan Society for the Promotion of Science (JSPS) and NEDO Feasibility Study Program (19101163-0) from New Energy and Industrial Technology Development Organization (NEDO), Japan. S.J. thanks the China Scholarship Council (CSC) for the CSC scholarship.
Publisher Copyright:
© 2022 American Chemical Society.
PY - 2023/1/9
Y1 - 2023/1/9
N2 - Impacts of an electrode active material with 1 μm scale thickness on the performance of an oxide-based all-solid-state battery (ASSB) have been investigated by metallic Na | Na3Zr2(SiO4)2(PO4) (NZSP) | Na3Ti2(PO4)3 (NTP) cells. Dense crystalline NTP layer is formed on NZSP ceramic electrolyte using spin coating of glass powder suspension and subsequent crystallization (glass-ceramic process). A sample with 0.6 μm thick NTP layer exhibits 0.1 C charge/discharge cycling with very small polarization (<0.03 V), and its initial capacity of ∼60 mA h g-1 is retained >80% after 60 cycles. Fast cathode kinetics also realized the 0.1 C capacity at −20 °C to be ∼80% retention. Furthermore, a facile control over the thickness of cathode films without any conductive additives in the 1 μm range demonstrated in this work enables the assessment of cathode kinetics. Electrochemical impedance spectroscopy revealed that Warburg resistance originates from an ambipolar diffusion of an electron and Na+ ion. The methodology presented here paves a way for rapid examinations of electrode material compatibility and electrode design for next-generation oxide-based ASSBs.
AB - Impacts of an electrode active material with 1 μm scale thickness on the performance of an oxide-based all-solid-state battery (ASSB) have been investigated by metallic Na | Na3Zr2(SiO4)2(PO4) (NZSP) | Na3Ti2(PO4)3 (NTP) cells. Dense crystalline NTP layer is formed on NZSP ceramic electrolyte using spin coating of glass powder suspension and subsequent crystallization (glass-ceramic process). A sample with 0.6 μm thick NTP layer exhibits 0.1 C charge/discharge cycling with very small polarization (<0.03 V), and its initial capacity of ∼60 mA h g-1 is retained >80% after 60 cycles. Fast cathode kinetics also realized the 0.1 C capacity at −20 °C to be ∼80% retention. Furthermore, a facile control over the thickness of cathode films without any conductive additives in the 1 μm range demonstrated in this work enables the assessment of cathode kinetics. Electrochemical impedance spectroscopy revealed that Warburg resistance originates from an ambipolar diffusion of an electron and Na+ ion. The methodology presented here paves a way for rapid examinations of electrode material compatibility and electrode design for next-generation oxide-based ASSBs.
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U2 - 10.1021/acsaem.2c03022
DO - 10.1021/acsaem.2c03022
M3 - Article
AN - SCOPUS:85145595940
SN - 2574-0962
VL - 6
SP - 317
EP - 325
JO - ACS Applied Energy Materials
JF - ACS Applied Energy Materials
IS - 1
ER -