Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Fabrication of 3D Aligned h-BN based Polymer Composites with Enhanced Mechanical Properties for Battery Housing

3차원으로 정렬된 h-BN을 이용한 향상된 기계적 특성을 가지는 배터리 하우징용 고분자 복합소재 제작

  • Kiho Song (Engineering Ceramic Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Hyunseung Song (Engineering Ceramic Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Sang In Lee (Engineering Ceramic Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Changui Ahn (Engineering Ceramic Center, Korea Institute of Ceramic Engineering & Technology)
  • Received : 2024.07.31
  • Accepted : 2024.08.19
  • Published : 2024.08.28
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Abstract

As the demand for electric vehicles increases, the stability of batteries has become one of the most significant issues. The battery housing, which protects the battery from external stimuli such as vibration, shock, and heat, is the crucial element in resolving safety problems. Conventional metal battery housings are being converted into polymer composites due to their lightweight and improved corrosion resistance to moisture. The transition to polymer composites requires high mechanical strength, electrical insulation, and thermal stability. In this paper, we proposes a high-strength nanocomposite made by infiltrating epoxy into a 3D aligned h-BN structure. The developed 3D aligned h-BN/epoxy composite not only exhibits a high compressive strength (108 MPa) but also demonstrates excellent electrical insulation and thermal stability, with a stable electrical resistivity at 200 ℃ and a low thermal expansion coefficient (11.46×ppm/℃), respectively.

Keywords

Acknowledgement

이 성과는 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원 을 받아 수행된 연구입니다(NRF-2022R1F1A1069574).

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