HEAT-RADIATING FLUID COMPOSITION, METHOD FOR MANUFACTURING SAME, AND BATTERY MODULE AND BATTERY PACK COMPRISING SAME

• Main Authors: CHUN, Moon Seok, KWON, Kyung An
• Format: Patent
• Language: English; French; Korean
• Published: 06.06.2019
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The present invention relates to a heat-radiating fluid composition, a method for manufacturing the same, and a battery module and a battery pack comprising the same. More specifically, the present invention relates to a heat-radiating fluid composition comprising 100 parts by weight of nonconductive oil, 1 to 30 parts by weight of thermally conductive inorganic particles and 1 to 30 parts by weight of an inorganic precipitation inhibitor, a method for manufacturing the same, and a battery module and a battery pack comprising the same, wherein the heat-radiating fluid composition has a viscosity of 850 cP or more at 20℃ and a viscosity of 750 cP or less at 30℃. According to the present disclosure, provided are a heat-radiating fluid composition having excellent electrical insulation and thermal conductivity, and particularly having excellent heat radiation performance even after long-term use due to the thermally conductive inorganic particles in the heat-radiating fluid not settling permanently, a method for manufacturing the same, and a battery module and a battery pack comprising the same. La présente invention concerne une composition de fluide à rayonnement thermique, son procédé de fabrication, et un module de batterie et un bloc-batterie la comprenant. Plus précisément, la présente invention concerne une composition de fluide à rayonnement thermique comprenant 100 parties en poids d'huile non conductrice, 1 à 30 parties en poids de particules inorganiques thermoconductrices et 1 à 30 parties en poids d'un inhibiteur de précipitation inorganique, son procédé de fabrication, et un module de batterie et un bloc-batterie la comprenant, la composition de fluide à rayonnement thermique présentant une viscosité de 850 cP ou plus à 20 °C et une viscosité de 750 cP ou moins à 30 °C. Selon la présente invention, l'invention concerne une composition de fluide à rayonnement thermique présentant une excellente isolation électrique et une excellente conductivité thermique, et en particulier ayant d'excellentes performances de rayonnement thermique même après une utilisation à long terme en raison des particules inorganiques thermoconductrices dans le fluide à rayonnement thermique qui ne se déposent pas de façon permanente, son procédé de fabrication, et un module de batterie et un bloc-batterie la comprenant. 본 발명은 방열 유체 조성물, 이의 제조방법, 이를 포함하는 전지 모듈 및 배터리 팩에 관한 것으로, 보다 상세하게는 비전도성 오일 100 중량부, 열전도성 무기입자 1 내지 30 중량부 및 무기 침전방지제 1 내지 30 중량부를 포함하되, 20 ℃에서의 점도가 850 cP 이상이고, 30 ℃에서의 점도가 750 cP 이하인 것을 특징으로 하는 방열 유체 조성물, 이의 제조방법, 이를 포함하는 전지 모듈 및 배터리 팩에 관한 것이다. 본 기재에 따르면, 전기절연성 및 열전도성이 우수하고, 특히 방열 유체 내 열전도성 무기입자가 영구적으로 침전하지 않아 장기간 사용 후에도 방열 성능이 뛰어난 방열 유체 조성물, 이의 제조방법, 이를 포함하는 전지 모듈 및 배터리 팩을 제공하는 효과가 있다.