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A Power-Law Decrease in Interfacial Resistance Between Li7La3Zr2O12 and Lithium Metal After Removing Stack Pressure
DOI:10.1149/1945-7111/ac2d43.png)
摘要
En 中文
The high interfacial resistance between solid electrolytes and lithium metal is a hurdle to developing all solid-state batteries. External pressure applied on the lithium and solid electrolyte interface prior to electrochemical cycling is known to effectively lower the interfacial resistance. Here we report that the interfacial resistance between Li6.4La3Zr1.4Ta0.6O12 (LLZTO) and lithium metal decreases over time even after removing the external pressure. The irreversible decrease of interfacial resistance can be understood by a gradual reduction of the total energy of the system, including strain energy and interfacial energy. Under external pressure exceeding similar to 25 MPa, however, lithium can be squeezed into LLZTO, fracturing the ceramic solid electrolyte. These observations can help improve the understanding of lithium metal creep and the interactions between garnet-type solid electrolytes and lithium metal.
Keyword:
LLZO Solid Electrolyte
Batteries
Lithium
Pressure
Creep
期刊
IF:
3.3
论文数:
3.3W
被引数:
9.4W
机构
引用论文
Contact between Garnet-Type Solid Electrolyte and Lithium Metal Anode: Influence on Charge Transfer Resistance and Short Circuit Prevention石榴石型固体电解质与锂金属阳极之间的接触: 对电荷转移电阻和短路预防的影响
A nanoindentation study of the viscoplastic behavior of pure lithium纯锂粘塑性行为的纳米压痕研究
SCRIPTA MATERIALIA
IF5.6
Surface Chemistry Mechanism of Ultra-Low Interfacial Resistance in the Solid-State Electrolyte Li7La3Zr2O12固态电解质Li7La3Zr2O12中超低界面电阻的表面化学机理

