2020
DOI: 10.26434/chemrxiv.13331084.v1
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Blocking Lithium Dendrite Growth in Solid-State Batteries with an Ultrathin Amorphous Li-La-Zr-O Solid Electrolyte

Abstract: Lithium garnet Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> (LLZO) electrolyte is a potential candidate for the development of solid-state batteries with lithium metal as high-capacity anode. But ceramic LLZO in the form of pellets or polycrystalline films can still suffer from lithium dendrite penetration because of surface and bulk inhomogeneities and grain boundaries with non-negligible electronic conductivity. In contrast, the amorphous phase of L… Show more

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Cited by 5 publications
(9 citation statements)
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“…Furthermore, this solution allowed the mass interference between ions having similar masses to be separated, providing more representative data when compared to the results obtained under standard vacuum conditions. Consequently, the structures of multilayer systems composed of thin films with thicknesses varying between several nanometers to hundreds of nanometers were efficiently represented in 2D space (3D data representation is also possible with the current system but requires separate data reconstruction software). As demonstrated, even layers, which are chemically very similar, can be well-distinguished due to the very high TOF-SIMS sensitivity.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Furthermore, this solution allowed the mass interference between ions having similar masses to be separated, providing more representative data when compared to the results obtained under standard vacuum conditions. Consequently, the structures of multilayer systems composed of thin films with thicknesses varying between several nanometers to hundreds of nanometers were efficiently represented in 2D space (3D data representation is also possible with the current system but requires separate data reconstruction software). As demonstrated, even layers, which are chemically very similar, can be well-distinguished due to the very high TOF-SIMS sensitivity.…”
Section: Discussionmentioning
confidence: 99%
“…Therefore, they are commonly used to improve the surface properties of solids, such as hardness (for watches, jewelry, and decorative items), reflection, or resistance to corrosion . Furthermore, thin films find many applications in microelectronics for high-k dielectrics, microbatteries for new energy devices, solid oxide fuel cells, in fabrication of Cu­(In,Ga)­Se 2 thin-film solar cells, dye-sensitized solar cells, photovoltaics, organic photovoltaics, transparent conducting oxides (such as SnO 2 , ZnO, Al:ZnO, black silicon), anti-reflective coatings, thin-film electroluminescent displays, thin-film metal–oxide–semiconductor field-effect transistor, micro- and nano-electromechanical systems (MEMS and NEMS), light-emitting diodes, as well as in medical applications and aerospace …”
Section: Introductionmentioning
confidence: 99%
“…6(g)) results showed the preferable accumulation of chemically distinctive lithium at the polymer/polymer interfaces. The 6 Li NMR measurements (Fig. 6(c)) further disclosed that the blade-cast PAN-LiClO4 electrolyte had a single peak at a chemical shift of −1.45 ppm corresponding to the Li in the bulk of PAN, while the electrospun PAN/LiClO4 sample had a single peak with a distinctive chemical shift of −0.48 ppm.…”
Section: Interfacial Ion Conduction Mechanismmentioning
confidence: 92%
“…Since their discovery at the end of the 20 th century, lithium (Li)-ion batteries (LIBs) have been widely applied in many fields such as portable electrical devices, electric vehicles (EVs), and grid storage stations, because of their advantages including high energy density, high operating voltage, and excellent cycle stability [1,2]. Traditional LIBs can offer volumetric and gravimetric energy densities of up to ~ 770 Wh•L −1 and ~ 300 Wh•kg −1 , respectively [2][3][4][5][6][7][8]; however, these levels are still not enough to meet the consumers' requirements [9]. Moreover, due to the volatile, flammable, and explosive properties of the organic liquid electrolytes, the use of large amounts of LIBs especially in energy storage power stations or EVs would easily cause safety hazards [9][10][11][12].…”
Section: Introductionmentioning
confidence: 99%
“…Figure 6c shows that the threshold stress is reached for a quench of 350°C for LiPON against LLZO, 550°C for LGPS against LFP, and 1220°C for LATP against NMC. The results shown here are readily modified for alternative cell architectures and other materials, including composite electrolytes [29][30][31][32] (e.g. co-sintered cathodes / electrolytes, Fig.…”
Section: Figure 6b Lists Biaxial Moduli and Thermal Expansion Coeffic...mentioning
confidence: 99%