Synthesis of Ga-doped Li7La3Zr2O12 solid electrolyte with high Li+ ion conductivity
Source abstract
Abstract
Abstract Garnet-type Li7La3Zr2O12 (LLZO) Li+ ion solid electrolyte is a promising candidate for next generation high-safety solid-state batteries. Ga-doped LLZO exhibits excellent Li+ ion conductivity, higher than 1 × 10−3 S cm−1. In this research, the doping amount of Ga, the calcination temperature of Ga-LLZO primary powders, the sintering conditions and the evolution of grains are explored to demonstrate the optimum parameters to obtain a highly conductive ceramics reproducibly via conventional solid-state reaction methods under ambient air sintering atmosphere. Cubic LLZO phase is obtained for Li6.4Ga0.2La3Zr2O12 powder calcined at low temperature 850 °C. In addition, ceramic pellets sintered at 1100 °C for 320 min using this powder have relative densities higher than 94% and conductivities higher than 1.2 × 10−3 S cm−1 at 25 °C.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Battery Materials and Technologies · Advancements in Battery Materials · Advanced Battery Technologies Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (52)
Show source-provided references
1. Fast lithium ion conduction in garnet-type Li7La3Zr2O1210.1002/anie.200701144 ↗
2. Interfacial stability of Li metal-solid electrolyte elucidated via in situ electron microscopy10.1021/acs.nanolett.6b03223 ↗
3. Two-step sintering strategy to prepare dense Li-garnet electrolyte ceramics with high Li+ conductivity10.1016/j.ceramint.2017.12.217 ↗
4. Sintering, micro-structure and Li+ conductivity of Li7−xLa3Zr2−xNbxO12/MgO (x= 0.2–0.7) Li-garnet composite ceramics10.1016/j.ceramint.2018.09.133 ↗
5. A general method to synthesize and sinter bulk ceramics in seconds10.1126/science.aaz7681 ↗
6. Rapid sintering method for highly conductive Li7La3Zr2O12 ceramic electrolyte10.1016/j.ceramint.2020.01.106 ↗
7. Li3PO4-doped Li7P3S11 glass-ceramic electrolytes with enhanced lithium ion conductivities and application in all-solid-state batteries10.1016/j.jpowsour.2015.02.160 ↗
8. Ultrafast solid-state lithium ion conductor through alloying induced lattice softening of Li6PS5Cl10.1039/C8TA07240J ↗
9. Facile synthesis toward the optimal structure-conductivity characteristics of the argyrodite Li6PS5Cl solid-state electrolyte10.1021/acsami.8b07476 ↗
10. Sulfide solid electrolytes for lithium battery applications10.1002/aenm.201800933 ↗
11. Sulfide solid electrolytes for all-solid-state lithium batteries: structure, conductivity, stability and application10.1016/j.ensm.2018.02.020 ↗
12. Reaction mechanisms of lithium garnet pellets in ambient air: the effect of humidity and CO210.1111/jace.14865 ↗
13. Toward practical all-solid-state lithium-ion batteries with high energy density and safety: comparative study for electrodes fabricated by dry- and slurry-mixing processes10.1016/j.jpowsour.2017.11.031 ↗
14. Preparation and performances of the modified gel composite electrolyte for application of quasi-solid-state lithium sulfur battery10.1016/j.cej.2020.124300 ↗
15. The surface behaviour of an Al-Li7La3Zr2O12 solid electrolyte10.1016/j.ceramint.2017.08.149 ↗
16. High Li-ion conductivity of Al-doped Li7La3Zr2O12 synthesized by solid-state reaction10.1016/j.ceramint.2016.04.149 ↗
17. The synergistic effect of dual substitution of Al and Sb on structure and ionic conductivity of Li7La3Zr2O12 ceramic10.1016/j.ceramint.2017.10.072 ↗
18. Crystal structure of garnet-related Li-ion conductor Li7-3xGaxLa3Zr2O12: fast Li-ion conduction caused by a different cubic modification?10.1021/acs.chemmater.6b00038 ↗
19. Gallium-doped Li7La3Zr2O12 garnet-type electrolytes with high lithium-ion conductivity10.1021/acsami.6b13902 ↗
20. Sintering behavior and electrochemical properties of garnet-like lithium conductor Li6.25M0.25La3Zr2O12 (M: Al3+ and Ga3+)10.1016/j.ssi.2017.09.014 ↗
21. Synthesis and structural characterisation of the Li ion conducting garnet-related systems, Li6ALa2Nb2O12 (A=Ca, Sr)10.1016/j.ssi.2008.01.047 ↗
22. High Li ion conductivity in strontium doped Li7La3Zr2O12 garnet10.1016/j.ssi.2013.04.016 ↗
23. Effects of B2O3 on microstructure and ionic conductivity of Li6.5La3Zr1.5Nb0.5O12 solid electrolyte10.1016/j.ceramint.2017.06.035 ↗
24. Structure and stoichiometry in supervalent doped Li7La3Zr2O1210.1021/acs.chemmater.5b00362 ↗
25. High ionic conductivity lithium garnet oxides of Li7-xLa3Zr2-xTaxO12 compositions10.1149/2.024205esl ↗
26. Ta-doped Li7La3Zr2O12 for water-stable lithium electrode of lithium-air batteries10.1149/2.013405jes ↗
27. Crystal structure and conductive properties of garnet-type lithium ion conductor Al-free Li7-xLa3Zr2-xTaxO12 (0≤x≤0.6)10.2109/jcersj2.16019 ↗
28. High ion conductivity in garnet-type F-doped Li7La3Zr2O12
29. The structure of lithium garnets: cation disorder and clustering in a new family of fast Li+ conductors10.1039/B514640B ↗
30. Toward understanding the lithium transport mechanism in garnet-type solid electrolytes: Li+ ion exchanges and their mobility at octahedral/tetrahedral sites10.1021/acs.chemmater.5b02429 ↗
31. Mechanisms of Li+ transport in garnet-type cubic Li3+xLa3M2O12 (M = Te, Nb, Zr)
32. Field assisted sintering of dense Al-substituted cubic phase Li7La3Zr2O12 solid electrolytes10.1016/j.jpowsour.2014.03.148 ↗
33. Optimizing Li+ conductivity in a garnet framework10.1039/c2jm31413d ↗
34. All solid state lithium batteries based on lamellar garnet-type ceramic electrolytes10.1016/j.jpowsour.2015.09.061 ↗
35. Manipulating Li2O atmosphere for sintering dense Li7La3Zr2O12 solid electrolyte10.1016/j.ensm.2019.01.018 ↗
36. DFT study of the role of Al3+ in the fast ion-conductor Li7-3xAlxLa3Zr2O12 garnet10.1021/cm5000999 ↗
37. Site occupation of Ga and Al in stabilized cubic Li7-3(x+y)GaxAlyLa3Zr2O12 garnets as deduced from 27Al and 71Ga MAS NMR at ultrahigh magnetic fields10.1021/acs.chemmater.5b00684 ↗
38. Structural and electrochemical consequences of Al and Ga cosubstitution in Li7La3Zr2O12 solid electrolytes10.1021/acs.chemmater.6b00579 ↗
39. Effect of Ga incorporation on the structure and Li ion conductivity of Li7La3Zr2O1210.1039/c2dt31318a ↗
40. A synthesis and crystal chemical study of the fast ion conductor Li7-3xGaxLa3Zr2O12 with x=0.08 to 0.8410.1021/ic500803h ↗
41. Atmosphere controlled processing of Ga-substituted garnets for high Li-ion conductivity ceramics10.1021/cm5008069 ↗
42. Ionic conductivity of Li5AlO4 and Li5GaO4 in moist air environments: potential humidity sensors10.1016/0025-5408(79)90197-1 ↗
43. Lithium ion conduction in substituted Li5GaO4 phases10.1016/0167-2738(86)90080-9 ↗
44. Synthesis and high Li-ion conductivity of Ga-stabilized cubic Li7La3Zr2O1210.1016/j.matchemphys.2012.03.054 ↗
45. Stabilization of cubic lithium-stuffed garnets of the type “Li7La3Zr2O12” by addition of gallium10.1016/j.jpowsour.2012.09.111 ↗
46. A shortcut to garnet-type fast Li-ion conductors for all-solid-state batteries10.1039/C5TA03239C ↗
47. Investigating the dendritic growth during full cell cycling of garnet electrolyte in direct contact with Li metal10.1021/acsami.6b13925 ↗
48. Overcoming the abnormal grain growth in Ga-doped Li7La3Zr2O12 to enhance the electrochemical stability against Li metal10.1016/j.ceramint.2019.04.236 ↗
49. Lithium garnets: synthesis, structure, Li+ conductivity, Li+ dynamics and applications10.1016/j.pmatsci.2017.04.007 ↗
50. Preparation of dense Ta-LLZO/MgO composite Li-ion solid electrolyte: sintering, microstructure, performance and the role of MgO10.1016/j.jechem.2019.01.013 ↗
51. Growth of self-textured Ga3+ substituted Li7La3Zr2O12 ceramics by solid state reaction and their significant enhancement in ionic conductivity10.1063/1.5019179 ↗
52. Effect of the lithium ion concentration on the lithium ion conductivity of Ga-doped LLZO10.1088/2053-1591/ab2799 ↗