The modification of Li2FeSiO4 materials by dual doping with Ag and PO43− or BO33−

Li, Ling; Jia, Tai-xuan; Liu, Chao; Han, Enshan; Yang, Yujie; Qin, Yanqing; Zhang, Manna

doi:10.1007/s11581-021-03999-x

Cited by 8 publications

(4 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, they can be limited by low electronic conductivity (~10 −12 S cm −1 ) [114][115][116] and Li + diffusion coefficient [117]. To improve the current rate discharge, LiFeSiO 4 was co-doped with a metal ion (e.g., Mg 2+ and Ag + ) in the Fe site and borate in the Si site [117,118]. The introduced defects can favor the Li-ion de-/intercalation.…”

Section: Borate-based Compounds As Cathodesmentioning

confidence: 99%

See 1 more Smart Citation

Borate-Based Compounds as Mixed Polyanion Cathode Materials for Advanced Batteries

et al. 2022

View full text Add to dashboard Cite

Rational design of new and cost-effective advanced batteries for the intended scale of application is concurrent with cathode materials development. Foundational knowledge of cathode materials’ processing–structure–properties–performance relationship is integral. In this review, we provide an overview of borate-based compounds as possible mixed polyanion cathode materials in organic electrolyte metal-ion batteries. A recapitulation of lithium-ion battery (LIB) cathode materials development provides that rationale. The combined method of data mining and high-throughput ab initio computing was briefly discussed to derive how carbonate-based compounds in sidorenkite structure were suggested. Borate-based compounds, albeit just close to stability (viz., < 30 meV at−1), offer tunability and versatility and hence, potential effectivity as polyanion cathodes due to (1) diverse structures which can host alkali metal intercalation; (2) the low weight of borate relative to mature polyanion families which can translate to higher theoretical capacity; and a (3) rich chemistry which can alter the inductive effect on earth-abundant transition metals (e.g., Ni and Fe), potentially improving the open-circuit voltage (OCV) of the cell. This review paper provides a reference on the structures, properties, and synthesis routes of known borate-based compounds [viz., borophosphate (BPO), borosilicate (BSiO), and borosulfate (BSO)], as these borate-based compounds are untapped despite their potential for mixed polyanion cathode materials for advanced batteries.

show abstract

Section: Borate-based Compounds As Cathodesmentioning

confidence: 99%

“…Electrochemical performance of the BO 3 3− doped LiFeSiO 4 cathode materials. Fe 0.98 Mg 0.02 (SiO 4 ) 0.97 (BO 3 ) 0.03 /C[117] and Li 2 Fe 0.98 Ag 0.02 (SiO 4 ) 0.99 (BO 3 ) 0.01 /C[118] were shown to have good electrochemical performance (Table…”

mentioning

confidence: 99%

Borate-Based Compounds as Mixed Polyanion Cathode Materials for Advanced Batteries

et al. 2022

View full text Add to dashboard Cite

show abstract

“…However, the performance of this material is hindered by its slow Li-ion diffusion and low electronic conductivity [18]. Many experimental and theoretical studies have focused on the modification of Li 2 FeSiO 4 to improve its properties [25][26][27][28]. Li 2 MnSiO 4 , Na 2 FeSiO 4 and Na 2 MnSiO 4 materials have also been studied extensively to assess their performance as cathode materials for batteries [29][30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

Intrinsic Defects, Diffusion and Dopants in AVSi2O6 (A = Li and Na) Electrode Materials

Kuganathan

2022

Batteries

View full text Add to dashboard Cite

The alkali metal pyroxenes of the AVSi2O6 (A = Li and Na) family have attracted considerable interest as cathode materials for the application in Li and Na batteries. Computer modelling was carried out to determine the dominant intrinsic defects, Li and Na ion diffusion pathways and promising dopants for experimental verification. The results show that the lowest energy intrinsic defect is the V–Si anti-site in both LiVSi2O6 and NaVSi2O6. Li or Na ion migration is slow, with activation energies of 3.31 eV and 3.95 eV, respectively, indicating the necessity of tailoring these materials before application. Here, we suggest that Al on the Si site can increase the amount of Li and Na in LiVSi2O6 and NaVSi2O6, respectively. This strategy can also be applied to create oxygen vacancies in both materials. The most favourable isovalent dopants on the V and Si sites are Ga and Ge, respectively.

show abstract

“…Therefore, increasing the conductivity of Li 2 FeSiO 4 to improve its rate capability and solving the problems such as low Liion diffusivity are the keys to the commercialization of Li 2 FeSiO 4 . 24,25 Preparation Method There are four popular methods for preparing Li 2 FeSiO 4 : solidstate method, sol-gel method, hydrothermal method and microemulsion method.…”

mentioning

confidence: 99%

Review—Research Progress of Li₂FeSiO₄ Cathode Materials for Lithium-Ion Batteries

Zhang

Shao

Zhao

et al. 2022

J. Electrochem. Soc.

View full text Add to dashboard Cite

Li2FeSiO4, as a highly promising polyanionic cathode material, has the advantages of high energy density, low cost, good thermal stability, high safety, and environmental friendliness. However, its electrochemical performance has been affected by such drawbacks as low electrical conductivity, low Li-ion diffusion rate, and crystal instability. In order to solve these problems and truly realize the commercial application of Li2FeSiO4 cathode materials, researchers have proposed more and more preparation or modification methods to optimize the electrochemical performance of Li2FeSiO4. This paper lists the electrochemical performance improvement of modified Li2FeSiO4 and its innovation potential. The realistic problems that still exist in the application of Li2FeSiO4 cathode materials at this stage are discussed. This paper provides a basis for the next innovative research and application of cathode materials for Li-ion batteries.

show abstract

The modification of Li2FeSiO4 materials by dual doping with Ag and PO43− or BO33−

Cited by 8 publications

References 43 publications

Borate-Based Compounds as Mixed Polyanion Cathode Materials for Advanced Batteries

Borate-Based Compounds as Mixed Polyanion Cathode Materials for Advanced Batteries

Intrinsic Defects, Diffusion and Dopants in AVSi2O6 (A = Li and Na) Electrode Materials

Review—Research Progress of Li₂FeSiO₄ Cathode Materials for Lithium-Ion Batteries

Contact Info

Product

Resources

About

The modification of Li2FeSiO4 materials by dual doping with Ag and PO43− or BO33−

Cited by 8 publications

References 43 publications

Borate-Based Compounds as Mixed Polyanion Cathode Materials for Advanced Batteries

Borate-Based Compounds as Mixed Polyanion Cathode Materials for Advanced Batteries

Intrinsic Defects, Diffusion and Dopants in AVSi2O6 (A = Li and Na) Electrode Materials

Review—Research Progress of Li2FeSiO4 Cathode Materials for Lithium-Ion Batteries

Contact Info

Product

Resources

About

Review—Research Progress of Li₂FeSiO₄ Cathode Materials for Lithium-Ion Batteries