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Feasible tape casting and sintering of Li7La3Zr1.75Nb0.25Al0.1O12

Feasible tape casting and sintering of Li7La3Zr1.75Nb0.25Al0.1O12

An approach for tape casting and sintering of Li7La3Zr1.75Nb0.25Al0.1O12 sheets suitable for use in solid-state battery development is described. The use of Li3BO3 as a sintering aid in both pellet and cast tape samples is examined. We find the optimal Li3BO3content for ionic conductivity in pellets is between 1 and 2 wt% Li3BO3, much less than in prior reports. At this level, ionic conductivity is ~2.5 × 10−4 S cm−1 after sintering in an argon atmosphere at 1000 °C for 6 h. 150–175 micron thick LLZNbO + 0.5% Li3BO3 tapes sintered at 1000 °C for 6 h exhibit ionic conductivity values of 2–3 × 104 S cm−1.


Original titleTape casting and sintering of Li7La3Zr1.75Nb0.25Al0.1O12 with Li3BO3 additions


Bravo to the authors. They demonstrate that solution processing of garnet solid-state electrolytes is feasible for the development of all-solid-state batteries.This work is very insightful.

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