Composite Polymer Electrolytes with Improved Lithium Metal Electrode Interfacial Properties: I. Elechtrochemical Properties of Dry PEO‐LiX Systems

Appetecchi, Giovanni Battista; Croce, F.; Dautzenberg, G.; Mastragostino, Marina; Ronci, F.; Scrosati, B.; Soavi, Francesca; Zanelli, Alberto; Alessandrini, F.; Prosini, Pier Paolo

doi:10.1149/1.1838925

Cited by 156 publications

(94 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The interfacial layer between the polymer electrolyte and the lithium metal produces a number of potential reactions: the reaction of lithium and the solvent or impurity, and the lithium salt in the polymer with a possible contribution of the polymer. 22 18 LiTFSI polymer membrane has been proven to be effective in suppressing the reaction of the LTAP plate and the Li metal, as shown in our previous report.…”

Section: Resultsmentioning

confidence: 55%

Water-Stable Lithium Anode with the Three-Layer Construction for Aqueous Lithium–Air Secondary Batteries

Zhang

Imanishi

Hasegawa

et al. 2009

Electrochem. Solid-State Lett.

112

104

View full text Add to dashboard Cite

A water-stable multilayer Li-metal electrode consisting of a lithium metal, a PEO 18 LiN͑SO 2 CF 3 ͒ 2 -BaTiO 3 composite polymer, and a lithium-conducting glass ceramic Li 1.35 Ti 1.75 Al 0.25 P 0.9 Si 0.1 O 12 ͑LTAP͒ was proposed as the lithium anode for aqueous lithium-air secondary batteries. The addition of finely dispersed nanosize BaTiO 3 in the polymer electrolyte greatly reduced the interfacial resistance between the Li anode and the polymer electrolyte. A Li/PEO 18 LiN͑SO 2 CF 3 ͒ 2 -10 wt % BaTiO 3 /LTAP electrode showed a total resistance of 175 ⍀ cm 2 in a 1 M aqueous LiCl solution at 60°C, with no change in the electrode resistance over a month. The Li/PEO 18 LiN͑SO 2 CF 3 ͒ 2 -10 wt % BaTiO 3 /LTAP/aqueous 1 M LiCl/Pt air cell had a stable opencircuit voltage of 3.80 V, which was equivalent to that calculated from the cell reaction of 2Li + 1/2O 2 + H 2 O = 2LiOH. The cell exhibited a stable and reversible discharge/charge performance of 0.5 mA cm −2 at 60°C, suggesting excellent reversibility of the lithium oxidation reduction reaction for the Li/PEO 18 LiN͑SO 2 CF 3 ͒ 2 -10 wt % BaTiO 3 /LTAP electrode. Metal-air batteries usually consist of a metal anode electrochemically coupled to oxygen, which is obtained from the environment through an air cathode. This type of battery is unique because oxygen is not stored in the cathode and is essentially an unlimited reactant source. Thus the capacity of the battery is theoretically limited only by the metal anode.1 Of all the metal-air batteries, the lithium-air battery has the highest theoretical specific energy of 11,140 Wh kg −1 with a calculated open-circuit voltage ͑OCV͒ of 2.91 V, based on the cell reaction 4Li + O 2 = 2Li 2 O, in a nonaqueous electrolyte.2,3 This specific energy is eight times higher than that of Zn-air and is comparable with that of a gasoline-air system. It is, therefore, expected that lithium-air batteries will have a potential as a power source, with high energy density, for use in advanced electric vehicles.4 A rechargeable lithium-air battery, using a polyacrylonitrile-based plasticized polymer electrolyte, was reported in 1996 by Abraham and Jiang.2 This cell showed a discharge capacity of 1600 mAh g −1 , and the specific energy density, including the weight of the electrode and the electrolyte, was estimated to be 250-350 Wh kg −1 . Read et al. 5,6 also observed a high discharge capacity of 2120 mAh g −1 during their detailed study of the electrolyte and air cathode formulation of a lithium/oxygen organic electrolyte cell. Ogasawara et al. 7 presented more attractive results in a rechargeable lithium-oxygen cell, with an organic electrolyte and a MnO 2 catalyst for Li 2 O 2 reduction. A high charge and discharge capacity of 600 mAh g −1 was achieved after 50 cycles, compared with a reversible capacity of 150 mAh g −1 for the cathode materials in conventional lithium-ion batteries. Recently, the authors showed improved discharge capacity, with better cyclability, using nanowire ␣-MnO 2 catalysts.8 This high cathode capacit...

show abstract

Section: Resultsmentioning

confidence: 55%

Water-Stable Lithium Anode with the Three-Layer Construction for Aqueous Lithium–Air Secondary Batteries

Zhang

Imanishi

Hasegawa

et al. 2009

Electrochem. Solid-State Lett.

112

104

View full text Add to dashboard Cite

show abstract

“…In addition, the onset of the current during anodic scan, which is representative of the decomposition of the electrolyte, indicates an anodic break-down voltage of approximately 4.3 V vs. Li. So, membrane F5 showed an appreciable anodic breakdown voltage [42].…”

Section: Linear Sweep Voltammetry (Lsv)mentioning

confidence: 96%

Preparation and characterization of novel thermoset polyimide and polyimide-peo doped with LiCF3SO3

Uğur¹,

Toker²,

Güngör

et al. 2014

Express Polym. Lett.

View full text Add to dashboard Cite

Abstract. This paper deals with the synthesis and characterization of a new type of anhydrous ionic conducting lithium doped membranes consist of polyimide (PI), poly (ethylene oxide) (PEO) and lithium trifluoromethanesulfonate (LiCF 3 SO 3 ) for solid polymer electrolyte (SPE). For this purpose, different molar ratios of lithium salt (Li-salt) solution are added into poly (amic acid) (PAA) intermediate prepared from the reaction of 3,3!,4,4!-benzophenon tetracarboxylic dianhydride (BTDA) and 4,4!-oxydianiline (ODA). PEO is incorporated into PAA since it forms more stable complexes and possess high ionic conductivities. Then, Li-salt containing PAA solutions are imidized by thermal process. The effect of interaction between host polymer and Li-salt is characterized by FT-IR (Fourier Transform Infrared) spectroscopy and SEM (scanning electron micrsocopy). The conductivities of Li-salt and PEO containing PI composite membranes are in the range of 10 -7 -10 -5 S·cm -1 . The conductivity increases with incorporation of PEO. Thermogravimetric analysis results reveal that the PI/PEO/LiCF 3 SO 3 composite polymer electrolyte membranes are thermally stable up to 500°C.

show abstract

“…35 Polymer electrolytes are historical solid electrolytes for Li secondary batteries. 6,7 Recently, some inorganic sulfides have been reported as highly conductive Li-ion conductors. 8,9 Hayashi et al found that Li 2 S-P 2 S 5 glassy solid electrolytes showed high ionic conductivity comparable to liquid electrolytes.…”

Section: Introductionmentioning

confidence: 99%

Microelectrode Studies on Kinetics of Charge Transfer at an Interface of Li Metal and Li2S-P2S5 Solid Electrolytes

et al. 2012

View full text Add to dashboard Cite

Charge transfer kinetics at the Li metal electrode/electrolyte interface for three inorganic solid electrolytes and an organic liquid electrolyte were elucidated with two parameters, exchange current density (i 0 ) for Li/Li + couple reactions and ionic conductivity in electrolyte. The former was evaluated by potential step method with a microelectrode, while the latter was done by electrochemical impedance spectroscopy. Both i 0 and ionic conductivity showed Arrhenius type dependence, and activation energies (E a ) for the charge transfer reactions and ionic conduction were evaluated. In the case of the organic liquid electrolyte, E a for the Li/Li + couple reactions was higher than that for ionic conduction because of the solvation/desolvation of Li + ion. However, for the Li 2 S-P 2 S 5 solid solid electrolytes, the E a for the Li/Li + couple reactions was quite close to that for ionic conduction due to the lack of the solvation/desolvation.

show abstract

Composite Polymer Electrolytes with Improved Lithium Metal Electrode Interfacial Properties: I. Elechtrochemical Properties of Dry PEO‐LiX Systems

Cited by 156 publications

References 3 publications

Water-Stable Lithium Anode with the Three-Layer Construction for Aqueous Lithium–Air Secondary Batteries

Water-Stable Lithium Anode with the Three-Layer Construction for Aqueous Lithium–Air Secondary Batteries

Preparation and characterization of novel thermoset polyimide and polyimide-peo doped with LiCF3SO3

Microelectrode Studies on Kinetics of Charge Transfer at an Interface of Li Metal and Li2S-P2S5 Solid Electrolytes

Contact Info

Product

Resources

About