Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 57, Issue -, Pages 27-30Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2015.05.001
Keywords
Garnet-type solid electrolyte; Lithium dendrites; Ex-situ SEM
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Funding
- China Postdoctoral Science Foundation [043202211]
- National Natural Science Foundation of China [51221291]
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This work investigated the resistance of Al-contained Li6.75La3Zr1.75Ta0.25O12 (LLZTO) sintered pellets to lithium dendrites. The short-circuiting period for Li/LLZTO/Li cells under a high applied direct current showed positive correlation to the variation in the relative densities of the LLZTO pellets sintered at different temperatures. Lithium dendrites were observed directly inside short-circuited LLZTO electrolytes. Our observations demonstrate that lithium dendrites can grow through grain boundaries and interconnected pores in the ceramic electrolytes. (C) 2015 Elsevier B.V. All rights reserved.
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