Assembly and Reliability Challenges for Next Generation High Thermal TIM Materials

Pan, Chi-An; Yeh, Chi-Tung; Qiu, Wei-Chun; Lin, Rong-Zheng; Hung, Liang-Yih; Ng, Kong-Toon; Lin, Chun-Tang; Chung, C. Key; Jiang, Don Son; Hsiao, C.S.

doi:10.1109/ectc.2017.114

Cited by 15 publications

(3 citation statements)

References 7 publications

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“…For this reason, a relatively large temperature gradient between the semiconductor junction and the coolant occurs when dissipating high heat fluxes [203,204]. Many efforts have been focused on the development of advanced TIMs, which reduce their respective R th [205][206][207][208].…”

Section: Power Converter Cooling Technologies Present In the Automoti...mentioning

confidence: 99%

Next generation electric drives for HEV/EV propulsion systems: Technology, trends and challenges

López

Ibarra

Matallana

et al. 2019

Renewable and Sustainable Energy Reviews

132

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Section: Power Converter Cooling Technologies Present In the Automoti...mentioning

confidence: 99%

Next generation electric drives for HEV/EV propulsion systems: Technology, trends and challenges

López

Ibarra

Matallana

et al. 2019

Renewable and Sustainable Energy Reviews

132

View full text Add to dashboard Cite

“…This can lead to the reduction, or in extreme cases, to the failure of heat transfer and therefore to a thermal overload within the battery. The following general failure mechanisms in TIMs are known or described in the literature [9]: migration [10], thermomechanical pump-out [11,12], delamination, cracking [13], decreasing coverage [14], pore formation, bleeding [15], dry-out [16], swelling or leaching by media, and oxidation [17].…”

Section: Degradation Of Thermal Interface Materialsmentioning

confidence: 99%

Methods for Durability Testing and Lifetime Estimation of Thermal Interface Materials in Batteries

Stadler

Maurer

2019

Batteries

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To ensure sufficient thermal performance within electric vehicle (EV) batteries, thermal interface materials (TIMs), such as pastes or adhesives, are widely used to fill thermally insulating voids between cells and cooling components. However, TIMs are composite materials that are subject to degradation over the battery’s lifetime. Using TIMs for battery applications is a new and emerging topic, creating the need to rapidly acquire knowledge about appropriate lifetime testing and evaluation methods, in close collaboration with the battery manufacturers. This paper reviews suitable methods for durability testing as well as basic modeling approaches which allow for the transfer of laboratory results to the longtime behavior of interface materials during a vehicle’s lifetime.

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“…In addition, the design of power modules or cooling systems favors devices with a low R th to maintain the junction temperature, T j , within the acceptable range. The thermal resistance value is directly proportional to the material thickness (t) and inversely proportional to the thermal conductivity (σ) and dissipation area (A) [21][22][23][24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

A Thorough Review of Cooling Concepts and Thermal Management Techniques for Automotive WBG Inverters: Topology, Technology and Integration Level

et al. 2021

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The development of electric vehicles (EVs) is an important step towards clean and green cities. An electric powertrain provides power to the vehicle and consists of a charger, a battery, an inverter, and a motor as the main components. Supplied by a battery pack, the automotive inverter manages the power of the motor. EVs require a highly efficient inverter, which satisfies low cost, size, and weight requirements. One approach to meeting these requirements is to use the new wide-bandgap (WBG) semiconductors, which are being widely investigated in the industry as an alternative to silicon switches. WBG devices have superior intrinsic properties, such as high thermal flux, of up to 120 W/cm2 (on average); junction temperature of 175–200 °C; blocking voltage limit of about 6.5 kV; switching frequency about 20-fold higher than that of Si; and up to 73% lower switching losses with a lower conduction voltage drop. This study presents a review of WBG-based inverter cooling systems to investigate trends in cooling techniques and changes associated with the use of WBG devices. The aim is to consider suitable cooling techniques for WBG inverters at different power levels.

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Assembly and Reliability Challenges for Next Generation High Thermal TIM Materials

Cited by 15 publications

References 7 publications

Next generation electric drives for HEV/EV propulsion systems: Technology, trends and challenges

Next generation electric drives for HEV/EV propulsion systems: Technology, trends and challenges

Methods for Durability Testing and Lifetime Estimation of Thermal Interface Materials in Batteries

A Thorough Review of Cooling Concepts and Thermal Management Techniques for Automotive WBG Inverters: Topology, Technology and Integration Level

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