Li3BO3–Li2CO3: Rationally Designed Buffering Phase for Sulfide All-Solid-State Li-Ion Batteries
By Sung‐Kyun Jung, Kyungbae Oh, Y. Nam, Dae Yang Oh, P. Brüner, K. Kang, Yousung Jung. Chemistry of Materials, 2018
189 citations recorded by the source corpus.
Most inorganic solid electrolytes (SEs) suffer from narrow intrinsic electrochemical windows and incompatibility with electrode materials, which results in the below par electrochemical performances of all-solid-state Li-ion or Li batteries (ASLBs). Unfortunately, in-depth understanding on the interfacial evolution and interfacial engineering via scalable protocols for ASLBs to mitigate these issues are at an infancy stage. Herein, we report on rationally designed Li3BO3–Li2CO3 (LBO-LCO or Li3–xB1–xCxO3 (LBCO)) coatings for LiCoO2 in ASLBs employing sulfide SE of Li6PS5Cl. The new aqueous-solution-based LBO-coating protocol allows us to convert the surface impurity on LiCoO2 and Li2CO3, into highly Li+-conductive LBCO layers (6.0 × 10–7 S cm–1 at 30 °C for LBCO vs 1.4 × 10–9 S cm–1 at 100 °C for Li2CO3 or 1.4 × 10–9 S cm–1 at 30 °C for LBO), which also offer interfacial stability with sulfide SE. By applying these high-surface-coverage LBCO coatings, significantly enhanced electrochemical performances are...
Subfields: Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/08cc8850f189c7ae63f5b8939d7ff61bff1067ce
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In Electrical and Electronic Engineering
Citations in the corpus
- Computational Screening of Cathode Coatings for Solid-State Batteries (2019, background): “Also, a recent report has shown that SSBs with Li3BO3-Li2CO3 (LBCO) cathode coating exhibit better cell performance than with Li3BO3 (LBO) coating, which is explained by the Li ionic conductivity of LBCO, which is two orders of magnitude higher than that for LBO.(44) To evaluate and understand the i”