• Title, Summary, Keyword: Benzotriazole additive

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Benzotriazole as an electrolyte additive on lithium-ion batteries performance

  • Hamenu, Louis;Madzvamuse, Alfred;Mohammed, Latifatu;Lee, Yong Min;Ko, Jang Myoun;Bon, Chris Yeajoon;Kim, Sang Jun;Cho, Won Il;Baek, Yong Gu;Park, Jongwook
    • Journal of Industrial and Engineering Chemistry
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    • v.53
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    • pp.241-246
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    • 2017
  • Liquid electrolyte consisting of 1 M LiPF6 in ethylene carbonate (EC)/dimethyl carbonate (DMC) and 0.1 wt% benzotriazole (BzTz) is studied in $LiCoO_2$//graphite battery system at room temperature. Benzotriazole addition introduces excellent electrochemical stability (5.6 V vs Li) and good ionic conductivity properties at room temperature. Also, this electrolyte shows good cycling performance and better discharge capacities at high C-rates relative to the pristine electrolyte. Furthermore, the additive allows the formation of a good solid electrolyte interphase (SEI) per cyclic voltammetry (CV) examination. These specialized properties make this liquid electrolyte ideal for high power and high voltage applications.

The Electrical Conduction Characteristics of Transformer Oils added the Anti-static Agent for Streaming Electrification (유동대전 억제제가 첨가된 변압기유의 전기전도 특성)

  • Lee, Yong-Woo;Lee, Tae-Hoon;Oh, Se-Young;Lee, Jong-Pil;Cha, Kwang-Hoon;Hong, Jin-Woong
    • Proceedings of the KIEE Conference
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    • pp.1213-1215
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    • 1997
  • In order to investigate the electrical characteristics due to the BTA(Benzotriazole) additive in the transformer, the electrical characteristics of the transformer oils contained benzotriazole as an anti-static agent for streaming electrification is studied by measuring the electric conduction. As a result of the electrical conduction characteristics, it is confirmed that the conduction current of virgin specimen is more higher than that of specimen contained the BT A 10[ppm] over 35[$^{\circ}C$], but that of specimen contained the BT A 10[ppm] over 50[$^{\circ}C$] is increased.

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The Effect of Additive on the Electric conductivity of Insulating Oil (절연유의 전기전도에 미치는 첨가제의 영향)

  • 정광현;김영봉;김용운;임헌찬;이덕출
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • pp.158-161
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    • 1996
  • The static charges are generated by streaming electrification phenomena in insulating oil flowing by force for the purpose of cooling at the internal of Ultra-high power transformer. In this thesis, their elimination method was studied. In this paper the effect of Additive on the electric conductivity of Insulating oil is studied. The variation of electric conductivity disappear when Additive is molten in insulating oil BTA(Benzotriazole) appear more variation of electric conductivity than that of SP-S10(Sorbitan mono-stearate). But the variation is not enough to decrease streaming electrification of insulating oil($\sigma$>10$\^$-12/[S/cm]).

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The Effect of Antistatic Agent for Streaming Electrification on the Breakdown Characteristics of Synthetic Fluids (합성절연유의 절연파괴 특성에 미치는 유동대전 억제제의 영향)

  • Song, Byung-Gi;Lee, Soo-Won;Shin, Jong-Yeol;Shin, Hyun-Teak;Hong, Jin-Woong
    • Proceedings of the KIEE Conference
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    • pp.1414-1416
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    • 1997
  • The electrical breakdown characteristics of the synthetic fluids No.2 of KS class VII used for insulating and cooling the materials for the ignition coil are studied. Also, Benzotriazole(BTA) as the streaming electrification suppressant additive is added to the oil, and the change of electrical properties due to different BTA concentration is investigated. To investigate the electrical characteristics, the breakdown strength of each specimen by an experiment for AC breakdown are analyzed. The breakdown strength of specimen by adding BTA is higher than virgin specimen in low e region, but lower than that in high region because of melting BTA. It is considered that the effective content of BTA as charge suppressant additive is about 10[ppm] from the results of AC breakdown.

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Electrical properties of insulating oils for automobile ignition coil (자동차 점화코일용 절연유의 전기적 특성)

  • 신종열;홍진웅
    • Transactions of the Korean Society of Automotive Engineers
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    • v.7 no.5
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    • pp.172-177
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    • 1999
  • In this paper, the physical and electrical properties of the synthetic fluids No. 2 class Ⅶ used the insulating oils for automobile ignition coil are studied. Also, benzotriazole(BTA) as the streaming electrification suppressant additive is added to the oil, and the change of physical and electrical properties due to different BTA concentration is investigated. To investigate the electrical characteristics, the breakdown strength of each specimen by an experiment for AC breakdown and the changes of conductivity by measuring volume resistivity are analyzed. It is considered that the effective content of BTA as charge suppressant additive is about 10[ppm] from the results of AC breakdown and volume resistivity test.

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Dielectric Characteristics due to BTA in Insulating Liquids for the Ignition Coil of Automobile (자동차 점화장치용 절연유의 BTA 함유에 따른 유전특성)

  • 신종열;조돈찬;조경순;이수원;홍진웅
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • pp.253-256
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    • 1997
  • Recently, mixture insulating oils is widely used in respect that the physical and the electrical properties is more excellentthan mineral oils, such as alkylbenzene oils and silicone oils, and that cost is lower than alkylbenzene oils or silicone oils. Also, it is important to research for the additive BTA(Benzotriazole) as a study for the phenomena of streaming electrification of mineral oils. So, mixture insulating oils class 7-2, is selected as a specimen in this experiments, and the contents of BTA in specimen are 0.2[ppm], 10[ppm] and 30[ppm], respectively. Then, the physical and the electrical properties for each specimen is made researches.

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The Volume Resistivity Characteristics on Fluid Flow of Ultra-High Voltage Transformer Oils added BTA (BTA를 첨가한 초고압변압기유의 유동시 체적고유저항특성)

  • Lee, Yong-Woo;Lee, Soo-Won;Shin, Hyun-Taek;Han, Sang-Sub;Hong, Jin-Woong
    • Proceedings of the KIEE Conference
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    • pp.267-269
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    • 1997
  • The electrical properties due to the Benzotriazole(following as BTA) additive in fluids for insulating and cooling the ultra-high voltage transformer is studied in this paper. Specimen having the several contents of BTA, such as 5[ppm]. 10[ppm] and 30[ppm] is used in order to investigate the characteristics on volume resistivity in case of fluid flow in experimental device made in lab. Volume resistivity is decreased with an increase of fluid flow velocity and increased with BTA content in low temperature region, but volume resistivity of specimen contained BTA 10[ppm] is the largest thing over $30[^{\circ}C]{\sim}50[^{\circ}C]$ than the others in experiment.

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