Development of a carbon-based lithium microbattery

Kinoshita, K.; Song, Xiangyun; Kim, J.; Inaba, Masaaki

doi:10.1016/s0378-7753(99)00189-5

Cited by 37 publications

(22 citation statements)

References 8 publications

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“…The cathodic current at the collection electrode shows a slight hysteresis with a higher current observed during the reverse potential scan on the generator electrode. The contribution from I 3 -ions that escaped and accumulated in the electrolyte during the anodic scan is responsible for this behavior. The generator-collector relationship shows very good linearity within 0-5 µA current range, and the collection efficiency can be easily determined from the slope of the current line.…”

Section: (I) Carbon Microstructured Electrodesmentioning

confidence: 99%

“…Usually, the patterned photoresist film was carbonized for 1 hour at temperatures between 600 to 1100 o C to form smooth carbon microstructures. We have previously reported [3] on the preparation of carbon films, which can serve as the current collectors, and the electrochemical results obtained on these films. The carbons obtained from pyrolyzed photoresist have properties similar to those of disordered carbons.…”

Section: (I) Carbon Microstructured Electrodesmentioning

confidence: 99%

“…Because carbons are available in a wide variety of morphologies and crystallographic structures, there are many opportunities to use carbon in battery applications. One approach that we are exploring is the use of semiconductor-processing techniques that involve photolithography to pattern photoresists and subsequent pyrolysis to form carbon microstructures that function as microelectrodes [1][2][3][4]. In this paper, we describe the status of the fabrication of carbon microelectrodes obtained by pyrolysis of photoresist and characterization of the carbons by surface-sensitive techniques and electrochemical analysis by cyclic voltammetry.…”

Section: Introductionmentioning

confidence: 99%

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Nanoscale fabrication and modification of selected battery materials

Kostecki¹,

Song²,

Kinoshita³

et al. 2001

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Carbon is an integral part of many battery electrodes. We explored the use of semiconductor-processing techniques that involve photolithography to pattern photoresists and subsequent pyrolysis to form carbon microstructures that function as microelectrodes. In this study, we describe the status of the fabrication of carbon microelectrodes obtained by pyrolysis of photoresist. Electrochemical nanometer-scale patterning of the surface of a conducting lithium manganese oxide (LiMn 2 O 4 ) by scanning probe microscopy (SPM) was studied. We show that a localized surface chemical change can be confined to a depth which depends on the oxide-tip voltage difference and ambient humidity The ability to produce nanometer-size patterns of chemically modified oxide or nanometer-sized alterations of the oxide morphology is demonstrated and discussed with reference to possible mechanisms.

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Section: (I) Carbon Microstructured Electrodesmentioning

confidence: 99%

Section: (I) Carbon Microstructured Electrodesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Nanoscale fabrication and modification of selected battery materials

Kostecki¹,

Song²,

Kinoshita³

et al. 2001

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“…Lithium ion secondary batteries have been widely used in mobile phone, personal computer and so on 1,2) . Many studies about charge/discharge characteristics and solid electrolyte interphase (SEI) have been reported so far 3,4) .…”

Section: Introductionmentioning

confidence: 99%

Reduction of Gas Desorption in Graphite Anode Used in Lithium Ion Battery by Hydrogen Plasma Irradiation

et al. 2011

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In order to reduce amount of electrolyte solvent desorbed from anode material in lithium ion battery, hydrogen plasma irradiation for the anode material was conducted. During the irradiation, the sample was negatively biased. Natural graphite sample after the hydrogen plasma irradiation was soaked in propylene carbonate (PC) used as electrolyte solvent. Then, the gas desorption behavior was investigated by using a technique of thermal desorption spectroscopy (TDS). The amount of gasses in the sample irradiated by hydrogen plasma due to the PC was reduced compared with case in the non-irradiated sample. The reduction by the irradiation became large with the increase of negative bias voltage. The reduction also increased with the ‰uence and became roughly constant in the higher ‰uence regime. In order to discuss this mechanism, the sample without the soaking in PC was heated up to 1173 K. H 2 desorption at high temperature region, around 1173 K, increased for the irradiated sample, compared with non-irradiated sample. This result suggests that implanted hydrogen ions form C H bond with carbon of active sites and then the C H bond might prevent the PC from adsorbing during the subsequent soaking.

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“…Because carbons are available in a wide variety of morphologies and crystallographic structures, there are many opportunities to demonstrate the viability of carbon in battery applications. One approach that we are exploring is the use of semiconductor-processing techniques that involve photolithography to pattern photoresists and subsequent pyrolysis to form carbon microstructures that function as microelectrodes (1)(2)(3)(4). In this paper, we describe the status of the fabrication of carbon microelectrodes obtained by pyrolysis of photoresist and characterization of the carbons by surface-sensitive techniques and electrochemical analysis by cyclic voltammetry.…”

Section: Introductionmentioning

confidence: 99%