2022
DOI: 10.1016/j.joule.2022.05.018
|View full text |Cite
|
Sign up to set email alerts
|

Design principles for zero-strain Li-ion cathodes

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
2
1

Citation Types

1
44
0
1

Year Published

2022
2022
2024
2024

Publication Types

Select...
7

Relationship

1
6

Authors

Journals

citations
Cited by 63 publications
(52 citation statements)
references
References 76 publications
1
44
0
1
Order By: Relevance
“…LiRh 2 O 4 contains [RhO 6 ] octahedra, and both t 2g and e g orbitals undergo the Jahn−Teller effect in the octahedral structure but to a much lesser extent in the case of t 2g electrons. 47 Furthermore, the relatively broad 4d orbital electrons in LiRh 2 O 4 have itinerant properties, and the Jahn−Teller transition of the Jahn−Teller active Rh 4+ (4d 5 ) ions was reduced. Consequently, in LiRh 2 O 4 , the Jahn−Teller effect and the related interfacial lattice strain were significantly reduced.…”
Section: Synthesis Of Novel Camsmentioning
confidence: 99%
See 2 more Smart Citations
“…LiRh 2 O 4 contains [RhO 6 ] octahedra, and both t 2g and e g orbitals undergo the Jahn−Teller effect in the octahedral structure but to a much lesser extent in the case of t 2g electrons. 47 Furthermore, the relatively broad 4d orbital electrons in LiRh 2 O 4 have itinerant properties, and the Jahn−Teller transition of the Jahn−Teller active Rh 4+ (4d 5 ) ions was reduced. Consequently, in LiRh 2 O 4 , the Jahn−Teller effect and the related interfacial lattice strain were significantly reduced.…”
Section: Synthesis Of Novel Camsmentioning
confidence: 99%
“…The region between the layered structure and rock salt exhibited a gradual transition rather than abrupt structural changes, such as at a grain boundary. 47 have recently proposed the general principles that are advantageous for obtaining zero-strain cathodes. Additionally, they synthesized a zero-strain cathode material with a disordered rock salt structure.…”
Section: Synthesis Of Novel Camsmentioning
confidence: 99%
See 1 more Smart Citation
“…11%), in which the phase transition is induced by fluoride-ion insertion into the rock-salt layer of Sr 3 Fe 2 O 5 F 2 . In the case of LIB cathodes, it has also been reported that the lattice volume change is very small for the (de)­intercalation of lithium ions into random percolation sites in the rock-salt structure, compared with the lattice volume expansion associated with the (de)­intercalation of lithium ions into a 2D layered rock-salt oxide cathode (e.g., layered LiCoO 2 (3.63%), cation-disordered rock salt Li 1.25 Nb 0.25 V 0.5 O 2 oxide (1%), and Li 1.25 V 0.55 Nb 0.2 O 1.9 F 0.1 oxyfluoride (0.7%)). Our finding that the volume change upon fluoride-ion insertion into perovskite layers is significantly smaller than that into the interlayer is expected to prove valuable for the development of cathodes for all-solid-state FIBs.…”
Section: Resultsmentioning
confidence: 99%
“…Therefore, it is necessary to develop material systems that undergo less volume expansion to serve as cathode materials for all-solid-state FIBs, but fewer examples of such materials have been reported than for lithium-ion secondary batteries, and the material design guidelines are yet to be established. In the case of LIB cathodes, the volume expansion has been reported to be more suppressed in disordered rock-salt-structured cathodes, in which the reaction proceeds by a percolation mechanism, than in layered rock-salt-structured cathodes. We have focused on the previously unexplored volume expansion of FIB cathodes during the insertion and extraction of fluoride ions and attempted to clarify the relationship between the volume expansion and insertion sites using a model cathode material containing both two-dimensional (2D) interstitial sites and three-dimensional (3D) percolation sites.…”
Section: Introductionmentioning
confidence: 99%