Help Privacy Policy Disclaimer
  Advanced SearchBrowse




Journal Article

Low-Temperature lonothermal Synthesis of Li-Ion Conductive Li4B7O12Cl Solid-State Electrolyte


Ruck,  Michael
Michael Ruck, Max Planck Fellow, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available

Tan, D., Wang, F., Pietsch, T., Grasser, M. A., Doert, T., & Ruck, M. (2019). Low-Temperature lonothermal Synthesis of Li-Ion Conductive Li4B7O12Cl Solid-State Electrolyte. ACS Applied Energy Materials, 2(7), 5140-5145. doi:10.1021/acsaem.9b00812.

Cite as: https://hdl.handle.net/21.11116/0000-0004-7816-D
Li-ion conductive polycrystalline Li4B7O12Cl to be used as a solid-state electrolyte was successfully synthesized by an ionothermal route at a low temperature. The reaction of lithium acetate dihydrate, boric acid, and copper(II) chloride dihydrate in trihexyltetradecylphosphonium chloride at 130 degrees C led to single-phase Li4B7O12Cl within 10 h. Li4B7O12Br was also successfully synthesized in a similar way. The ionic conductivity, activation energy, and electrochemical window of Li4B7O12Cl electrolyte were measured. A relatively high ionic conductivity of 3 X 10(-4) S cm(-1) at room temperature was detected. A linear sweep voltammogram of the Li4B7O12Cl electrolyte exhibited an electrochemical stability of up to 4.3 V vs. Li/Li+ under the measured conditions. The fabricated {Li Li4B7O12Cl parallel to Li} symmetrical cell exhibits a relatively low voltage hysteresis of 120 mV for 60 cycles.