2018
DOI: 10.1007/s10008-018-3975-2
|View full text |Cite
|
Sign up to set email alerts
|

Effects of Nb substitution on structure and electrochemical properties of LiNi0.7Mn0.3O2 cathode materials

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
1
1

Citation Types

2
12
0

Year Published

2019
2019
2023
2023

Publication Types

Select...
7

Relationship

0
7

Authors

Journals

citations
Cited by 19 publications
(14 citation statements)
references
References 38 publications
2
12
0
Order By: Relevance
“…The intensity increases with increasing Sn content in the materials. Moreover, in the Ni 2p 3/2 spectra (Figure b–e), the signal can be fitted into two peaks located at 854.8 and 855.0 eV, attributing to the Ni 2+ and Ni 3+ ions, respectively . A notable increase in the relative intensity of the Ni 2+ peak was observed as the Sn content of the materials was increased.…”
Section: Resultssupporting
confidence: 92%
See 1 more Smart Citation
“…The intensity increases with increasing Sn content in the materials. Moreover, in the Ni 2p 3/2 spectra (Figure b–e), the signal can be fitted into two peaks located at 854.8 and 855.0 eV, attributing to the Ni 2+ and Ni 3+ ions, respectively . A notable increase in the relative intensity of the Ni 2+ peak was observed as the Sn content of the materials was increased.…”
Section: Resultssupporting
confidence: 92%
“…Moreover, in the Ni 2p 3/2 spectra (Figure 3b−e), the signal can be fitted into two peaks located at 854.8 and 855.0 eV, attributing to the Ni 2+ and Ni 3+ ions, respectively. 38 A notable increase in the relative intensity of the Ni 2+ peak was observed as the Sn content of the materials was increased. This observation is in agreement with the argument that Sn doping would lead to the equivalent formation of the Ni 2+ ions due to the charge compensation.…”
Section: Resultsmentioning
confidence: 93%
“…The most widely known Co‐free cathode, Li[Ni 0.5 Mn 0.5 ]O 2 , has attracted significant interest; however, its relatively low capacity renders the cathode unsuitable for applications requiring high‐energy‐density . To increase the discharge capacity, Li[Ni 0.6 Mn 0.4 ]O 2 , Li[Ni 0.7 Mn 0.3 ]O 2 , Li[Ni 0.8 Mn 0.2 ]O 2 , and Li[Ni 0.9 Mn 0.1 ]O 2 cathodes have been proposed, but their inferior cycling stability make their practical utilization questionable . In this study, we systematically investigate the characteristics of a Co‐free Ni‐rich Li[Ni x Mn 1‐ x ]O 2 cathode by gradually removing Co from Li[Ni 0.9 Co 0.1 ]O 2 .…”
Section: Introductionmentioning
confidence: 99%
“…49 There are conflicting arguments regarding whether substituted Nb ions replace Li or TM ions in the layered structure. Nb ions have been reported to replace Li + ions in the Li layer; 47,53 however, recently, Nb ions have been reported to exist in the TM layer by replacing TM ions, 43,44 which has been confirmed through DFT calculations suggesting that Nb ions prefer the TM site in the TM layer. 54,55 The increase in the lattice parameters and unit cell volume of Nb-LNCM indicates that Nb with a larger ionic radius replaces the TM ions with smaller ionic radii and is present in the TM layer.…”
Section: Resultsmentioning
confidence: 97%
“…41,42 In addition, recent research has proved that Nb ions are one of the most promising doping elements because they can enhance the structural stability and electrical conductivity of conventional layered cathode materials. [43][44][45][46] Nb doping of Ni-rich layered oxides can reduce the charge-transfer resistance and improve the rate capability. 47,48 The electrochemical performance of LiNi 1/3 Co 1/3 Mn 1/3 O 2 at high operating voltages was improved by Nb doping.…”
Section: Irreversible Structural Transition and Voltage Decay During ...mentioning
confidence: 99%