Solid-state thin-film supercapacitor with ruthenium oxide and solid electrolyte thin films

Yoon, Young Soo; Cho, W.I; Lim, Jae Hong; Choi, Dong Jun

doi:10.1016/s0378-7753(01)00484-0

Cited by 136 publications

(68 citation statements)

References 14 publications

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“…11,12 To improve the electrochemical performance, the porous carbon materials with high surface area and excellent electronic conductivity, such as graphene, carbon nanotubes, carbonfibers and mesoporous carbons, which are applied to prepare composite electrodes. [13][14][15] The carbon substrates in composite electrodes act as highly conductive current collectors, meanwhile the interconnected porosity also provides continuous pathway for electrolyte diffusion, resulting in high electrochemical performance in comparison with single manganese oxides electrodes. Biomass as a carbonaceous precursor has been extensively investigated for its abundance, low cost and easy accessibility compared with other carbonaceous precursors.…”

Section: Introductionmentioning

confidence: 99%

“…27 In summary, it was found that the carbon substrates have significant effects on the structure and composition of manganese oxides/carbon composite electrodes. The previous researches were focused on the preparation method and carbon substrates type of manganese oxides/carbon electrodes, [13][14][15][21][22][23][24] however the effect of carbon substrates on the composition and electrochemical performance of composite electrodes was limited.…”

Section: Introductionmentioning

confidence: 99%

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Support Effect on the Structure and Properties of Manganese Oxide Electrode Materials

Wu¹,

Han²,

Wang³

et al. 2017

Quim. Nova

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The composite electrode material of manganese oxide supported on poly glucose (PGS) was prepared by using KMnO 4 as manganese source. In order to study the influence of the support on the structure and properties of the composite electrode materials, the changes of the composition of the composite electrode materials were investigated in different weight ratio of KMnO 4 /PGS (3:1, 3:3, 3:5, 3:7, 3:9). The characterization results of XRD, Raman special and XPS indicated the composition of manganese oxides was greatly influenced by the content of PGS. When the PGS content is lower, the composition of manganese oxide in hybrid material is single-component oxide (MnOOH or Mn 3 O 4 ). With the increasing PGS content, a mixture of Mn 3 O 4 and MnCO 3 was observed, furthermore proportion of MnCO 3 in mixture also increased, and up to higher PGS content (KMnO 4 /PGS=3:9), single-component MnCO 3 was founded on hybrid material. In addition, the change of composition of hybrid materials also led to an obvious difference in electrochemical performance. With the increase of PGS content, the specific capacitance of hybrid materials increases firstly, and reaches the maximum with the weight ratio of KMnO 4 /PGS equal to 3:3, and then gradually decreases. This was attributed to the higher electrochemical performance of Mn 3 O 4 than that of MnOOH and MnCO 3 .

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Support Effect on the Structure and Properties of Manganese Oxide Electrode Materials

Wu¹,

Han²,

Wang³

et al. 2017

Quim. Nova

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“…Tin films of tin oxides prepared by Brousse et al [5] and S.C. Nam et al [6] showed that oxides in crystalline form also exhibited higher capacities and longer cycles than oxides in amorphous form by low-pressure chemical vapor deposition (LPCVD) and e-beam evaporation. In addition, RuO2 shows promise as a supercapacitor electrode material exhibiting a high specific capacitance [7][8][9][10][11][12]. Due to the cost of ruthenium, there have been several studies that have combined ruthenium oxide with other materials to form composite electrodes [13,14].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and characterization of a SnO2−RuO2 composite anode for a hybrid thin film battery

2005

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A SnO 2 -RuO 2 composite (SnRuO) thin film possesses unique electrochemical properties for a hybrid between batteries and supercapacitors due to the fact that the SnRuO system shows battery and supercapacitor characteristics simultaneously. SnRuO thin films were prepared through the magnetron co-sputtering method in order to investigate the feasibility of a monolithic thin film hybrid battery. The SnRuO thin film as an anode film for a secondary battery demonstrated a first discharge capacity of 1557 μAh/cm 2 ·μm; the second discharge capacity was 52 % of the first discharge capacity. The degree of capacity fade of the SnRuO thin film was almost the same as that of the SnO2 thin film, even though the capacity of the SnRuO thin film was larger than that of the pure SnO2. In addition, the SnRuO thin film showed a supercapacitor behavior and exhibited a specific capacitance of 14 mF/cm 2 μm during 1000 cycles. These results suggest that SnRuO thin film could be used as a thin film supercapacitor as well as a thin film battery. Furthermore, this composite thin film holds promise for the fabrication of a monolithic thin film high power hybrid battery based on micro-processes.

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“…In particular, hydrated forms of RuO 2 · wH 2 O, prepared with a sol-gel process, are reported to have exhibited a high specific capacitance of 720 F/g [11]. In our previous work, we suggested the potential use of the TFSC as a micropower source, in which amorphous RuO 2 serves as the electrode and LiPON as the electrolyte [12][13][14]. In this system, the amorphous RuO 2 film plays the role of intercalation material for the Li ions with a capacity of 38 mF/cm 2 -mm.…”

Section: Introductionmentioning

confidence: 99%

Charge-discharge induced phase transformation of RuO2 electrode for thin film supercapacitor

et al. 2003

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We report on the preparation of an all solid-state thin film micro-supercapacitor using RuO 2 electrode film and LiPON electrolyte film on a Pt/Ti/Si substrate with dual target dc and rf reactive sputtering. Room temperature charge-discharge measurements based on a symmetrical RuO 2 /LiPON/RuO 2 structure clearly demonstrated the cyclibility dependence of the RuO 2 electrode on the microstructure. Using both glancing angle X-ray diffraction (GXRD) and transmission electron microscopy (TEM) analysis, it was found that the characteristics of the thin film supercapacitor are dependent on the microstructure of the RuO 2 film. In addition, high-resolution electron transmission microscopy (HREM) analysis after cycling demonstrates that the interface layer formed by interfacial reaction between the LiPON and RuO 2 acts as the main factor in the degradation of the performance of the thin film micro-supercapacitor.

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Solid-state thin-film supercapacitor with ruthenium oxide and solid electrolyte thin films

Cited by 136 publications

References 14 publications

Support Effect on the Structure and Properties of Manganese Oxide Electrode Materials

Support Effect on the Structure and Properties of Manganese Oxide Electrode Materials

Fabrication and characterization of a SnO2−RuO2 composite anode for a hybrid thin film battery

Charge-discharge induced phase transformation of RuO2 electrode for thin film supercapacitor

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