Anion effect on Li/Na/K hybrid electrolytes for Graphite//NCA (LiNi0.8Co0.15Al0.05O2) Li-ion batteries

Jrondi, Aiman; Nikiforidis, Georgios; Anouti, Mérièm

doi:10.1016/j.jechem.2021.05.004

Cited by 11 publications

(5 citation statements)

References 73 publications

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“…In fact, the differences between Li/Na/K are as well observed with several other anions [48,54,55,66] as with FTFSI. Both are related to anion‐cation interactions.…”

Section: Resultssupporting

confidence: 69%

“…The dissociation of these salts appear to be much more sensible to the temperature than their symmetrical homologues imides in alkylcarbonates, a � 0:73 for LiTFSI in EC/DMC. [65] In fact, the differences between Li/Na/K are as well observed with several other anions [48,54,55,66] as with FTFSI. Both are related to anion-cation interactions.…”

Section: Comparative Viscosity and Conductivity As A Function Of Solvent And Saltsupporting

confidence: 53%

“…We can simply conclude that these interactions are subject to the several combinations of intermolecular interactions that occur between the ions, the solvents, and the ion‐solvent molecules. These observations can be compared to those of salts of symmetrical anions such as LiTFSI [54] LiPF 6 [48] or other anions [55] in the same type of solvents. it appears that the asymmetry of the FTFSI anion has a strong influence and induces a reversal of the behavior of this salt in the two mixtures of solvents.…”

Section: Resultsmentioning

confidence: 99%

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Role of FTFSI Anion Asymmetry on Physical Properties of AFTFSI (A=Li, Na and K) Based Electrolytes and Consequences on Supercapacitor Application

2021

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This study compares the physicochemical properties of six electrolytes comprising of three salts: LiFTFSI, NaFTFSI and KFTFSI in two solvent mixtures, the binary (3EC/7EMC) and the ternary (EC/PC/3DMC). The transport properties (conductivity, viscosity) as a function of temperature and concentration were modeled using the extended Jones-Dole-Kaminsky equation, the Arrhenius model, and the Eyring theory of transition state for activated complexes. Results are discussed in terms of ionicity, solvation shell, and cross-interactions between electrolyte components. The application of the six formulated electro-lytes in symmetrical activated carbon (AC)//AC supercapacitors (SCs) was characterized by cyclic voltammetry (CV), galvanostatic cycling with potential limitation (GCPL), electrochemical impedance spectroscopy (EIS) and accelerated aging. Results revealed that the geometrical flexibility of the FTFSI anion allows it to access and diffuse easily in AC whereas its counter ions (Li + , Na + or K + ) can remain trapped in porosity. However, this drawback was partially resolved by mixing LiFTFSI and KFTFSI salts in the electrolyte.

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“…In fact, the differences between Li/Na/K are as well observed with several other anions [48,54,55,66] as with FTFSI. Both are related to anion‐cation interactions.…”

Section: Resultssupporting

confidence: 69%

Section: Comparative Viscosity and Conductivity As A Function Of Solvent And Saltsupporting

confidence: 53%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Role of FTFSI Anion Asymmetry on Physical Properties of AFTFSI (A=Li, Na and K) Based Electrolytes and Consequences on Supercapacitor Application

2021

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“…Cylinder cells have grooved with semi-auto grooving machine and welded the aluminum strip on the positive electrode to anti-explosive cap and insulation O-ring. Bring the cylinder cells into glove box for dropping 5 mL electrolyte LiPF6 to earn good thermal stability, electrochemical performance, and transport ion properties [19], and close the cap before bring the cylinder cell out. Sealing cylinder cells with sealing machine.…”

Section: Coating Battery Assembly and Battery Testingmentioning

confidence: 99%

Best Formulation of Water-Based Slurry Making for Excellent Lithium Nickel Cobalt Aluminum Oxide (LiNi0.8Co0.15Al0.05O2) Performance

Hakam

Adristy

Chairinnisa

et al. 2023

ESTA

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LiNi0.8Co0.15Al0.05O2 (NCA) is one of Ni-rich in Li-ion battery cathode family that offers capacity around 200 mAh/gram high energy density, low cost, non-toxicity, and superior thermal stability. To produce some good performance of the batteries, it’s needed the best slurry which is prepared for coating process making in water-based system. Due to remarkably improved the bonding capacity, cycle stability, rate performance of battery cathode. The formula of Lithium Nickel Cobalt Aluminum Oxide (LiNi0.8Co0.15Al0.05O2 or NCA): Acetylene Black (AB): Carboxymethyl Cellulose (CMC): Styrene Butadiene Rubber (SBR) is has many ratios as 80:10:5:5, 80:10:3:7, 90:6:2:2, 90:5:2:3, 85:10:2:3, and 80:15:2:3. All of formula can stick on Al-foil, so the electrode sheet can make by aqueous-based system but should be have appropriately formula and some of slurry not enough to coat on Al-foil because it has less slurry. Summary all of cathode sheet has voltage 3.7 V. The formula has the capacity/gram around 121.1-132.8 mAh/gram and efficiency around 85%-97%, Formula 4 (90:5:2:3) is best formula has high capacity when compare with another formula and after calculate that has capacity/gram 132.8 mAh/gram and high efficiency 95-97%.

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“…[ 1 ] Currently, energy densities of 260–295 Wh kg −1 and 650–730 Wh L −1 have been achieved for 3C (Computer, Communication, and Consumer Electronics) devices. [ 2,3 ] Commercial LIBs based on intercalation/insertion‐type (mostly olivine LiFePO 4 , [ 4 ] layered LiCoO 2 , [ 5 ] spinel LiMn 2 O 4 , [ 6 ] layered LiNi x Mn y Co z O 2 [ 7 ] of different stoichiometries and layered LiNi 0.8 Co 0.15 Al 0.05 O 2 [ 8 ] ) electrodes with specific capacities of ≈200 mAh g −1 generally display low self‐discharge and excellent stability after long cycles. However, the typical commercial cathode cannot fulfill the growing demands in electric cars and 3C portable electronics, expecting demand to approach 400 Wh kg −1 at the cell level by 2030.…”

Section: Introductionmentioning

confidence: 99%

Metal Fluoride Cathode Materials for Lithium Rechargeable Batteries: Focus on Iron Fluorides

2022

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The continued development of modern society is facing the rapid transformation of energy sources from polluting fossil fuels to clean and sustainable energy. Among the available energy storage equipment, lithium-ion (LIBs)/lithium metal batteries (LMBs) have the features of high energy/ power density, long life, and environmental friendliness and have attracted significant academic and industrial attention. Since the successful commercialization of LIBs in the 1990s, the energy density of batteries has been significantly improved. [1] Currently, energy densities of 260-295 Wh kg −1 and 650-730 Wh L −1 have been achieved for 3C (Computer, Communication, and Consumer Electronics) devices. [2,3] Commercial LIBs based on intercalation/insertion-type

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Anion effect on Li/Na/K hybrid electrolytes for Graphite//NCA (LiNi0.8Co0.15Al0.05O2) Li-ion batteries

Cited by 11 publications

References 73 publications

Role of FTFSI Anion Asymmetry on Physical Properties of AFTFSI (A=Li, Na and K) Based Electrolytes and Consequences on Supercapacitor Application

Role of FTFSI Anion Asymmetry on Physical Properties of AFTFSI (A=Li, Na and K) Based Electrolytes and Consequences on Supercapacitor Application

Best Formulation of Water-Based Slurry Making for Excellent Lithium Nickel Cobalt Aluminum Oxide (LiNi0.8Co0.15Al0.05O2) Performance

Metal Fluoride Cathode Materials for Lithium Rechargeable Batteries: Focus on Iron Fluorides

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