Phthalocyanine Cathode Materials for Secondary Lithium Cells

Yamaki, Jun‐ichi; Yamaji, Akihiko

doi:10.1149/1.2123792

Cited by 56 publications

(40 citation statements)

References 11 publications

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“…In phthalocyanine cathode system, the lithium is expected to be intercalated between MPc molecular layers. Yamaki et al have reported cathode materials containing unsubstituted phthalocyanines in secondary lithium cells [6]. For 1 V cutoff, the discharge voltage and the discharge capacity of this cell were reported to be 1.4 V and 870 Ah kg À1 , respectively.…”

Section: Introductionmentioning

confidence: 82%

“…The high chemical and thermal stabilities as well as the interesting optical properties have afforded various applications in the field of OPC devices. As some of the derivatives have been known to exhibit quite remarkable redox property over a wide range of potentials, application to secondary lithium batteries as active electrode materials were studied [6]. In phthalocyanine cathode system, the lithium is expected to be intercalated between MPc molecular layers.…”

Section: Introductionmentioning

confidence: 99%

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Lithium rechargeable batteries composed of octacyanophthalocyaninatoiron and its polymer complex as cathode

Kim

Onishi

Matsumoto

et al. 2001

J. Porphyrins Phthalocyanines

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Highly pure octacyanophthalocyaninatoiron complex (FePcOC) was synthesized by the reaction between tetracyanobenzene and iron(II) acetate in sulfolane. The complex was further converted into a coordination polymer by the reaction with tetrazine as an axial m-bridge ligand. The charge/discharge characteristics of lithium cells with an FePcOC cathode were studied. The capacity and the energy density based on the quantity of cathode active material were ca 105 mAh g À1 and 210 Wh kg À1 respectively. Better results were obtained when the cathode material was replaced by the coordination polymer. It was found that the FePcOC and corresponding polymer complex are promising candidates as an active cathode material for lithium secondary batteries.

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Section: Introductionmentioning

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Lithium rechargeable batteries composed of octacyanophthalocyaninatoiron and its polymer complex as cathode

Kim

Onishi

Matsumoto

et al. 2001

J. Porphyrins Phthalocyanines

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“…Molecular metal clusters have been investigated as a new kind of cathode materials for lithium battery. [10][11][12][13] Molecular cluster electrodes are expected to show the intermediate properties between the lithium (de-)insertion materials and the organic radical electrodes.…”

Section: Introductionmentioning

confidence: 99%

Effect of Annealing Treatment on the Electrochemical Properties of Polyoxomolybdate K4[SiMo12O40] as Cathode Material of Lithium Battery

Kume

Uematsu

et al. 2014

Electrochemistry

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Silicon-centered polyoxomolybdate K 4 [SiMo 12 O 40 ] (KSM) with the Keggin type structure was investigated as the cathode material for rechargeable lithium battery. The discharge capacity and cycle performance of KSM mainly depends on the annealing temperature. This material shows improved discharge capacity by the increase of annealing temperature. Rietveld analysis of X-ray powder diffraction data and Raman spectra were used to analyze the effect of annealing treatment on the cycle performance of KSM. The results indicate that the improvement of cycle performance would be caused by the re-oxidation of Mo 5+ ion in KSM reduced during the preparation process. The KSM cathode shows better electrochemical performance than that of the reported phosphorous-centered polyoxomolybdate K 3 [PMo 12 O 40 ] (KPM), indicating that KSM as the cathode material with high discharge capacity and cycle stability is accessible.

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“…1,2,8 The attention to the usage of phthalocyanines is increasing in many fields such as dyestuffs, 9 electric conductors, 10 catalysts, 1,2 electrocatalysts, 3,4,11 electrochemically active layers, 12 cathode materials in Li-batteries, 13 photovoltaic or photogalvanic elements, 14 and sensitizers for photodynamic therapy of cancer (PDT).…”

Section: Introductionmentioning

confidence: 99%

Synthesis and properties of novel polymeric metal-free and metallophthalocyanines containing peripherally long 1,2-bis[(3-oxapropyl)oxa]benzene derivatives

Bílgín

Yanmaz²,

Yağcı³

2014

Turk J Chem

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New polymeric phthalocyanine moieties (M = 2H, Zn, Ni, Cu, and Co) were synthesized via polytetracyclomerization reaction of o -bis[3-(3,4-dicyanophenoxy)propyloxy]benzene (3), which can be obtained by the reaction of 4-nitrophthalonitrile with o -bis[(3-hydroxypropyl)oxy]benzene. Aggregation and disaggregation behavior of the polymeric phthalocyanine ( 5) was studied with some alkali and earth alkali metal cations. Measured intrinsic viscosities of the polymeric phthalocyanines exhibited a substantial decreasing tendency with dilution of the solution. Thermogravimetric analysis was performed under air by using DSC and DTG/TGA techniques and indicated that these polymers have good thermal stability. AC and DC electrical conductivities of the polymeric phthalocyanines were investigated in the frequency range 100 Hz-1 MHz within the temperature range 298-343 K. AC/DC conductivities of the samples were found to be between 10 −5 and 10 −7 S cm −1 at ambient temperature under argon atmosphere. The structures of new synthesized compounds were characterized by using microanalysis; various spectroscopic methods such as UV-Vis, FT-IR, 1 H NMR, and 13 C NMR spectroscopy; and MS spectra.

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Phthalocyanine Cathode Materials for Secondary Lithium Cells

Cited by 56 publications

References 11 publications

Lithium rechargeable batteries composed of octacyanophthalocyaninatoiron and its polymer complex as cathode

Lithium rechargeable batteries composed of octacyanophthalocyaninatoiron and its polymer complex as cathode

Effect of Annealing Treatment on the Electrochemical Properties of Polyoxomolybdate K<sub>4</sub>[SiMo<sub>12</sub>O<sub>40</sub>] as Cathode Material of Lithium Battery

Synthesis and properties of novel polymeric metal-free and metallophthalocyanines containing peripherally long 1,2-bis[(3-oxapropyl)oxa]benzene derivatives

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