Liquid cooling system for battery modules with boron nitride based thermal conductivity silicone grease

Ge, Xin; Chen, You‐Peng; Liu, Weidong; Zhang, Guoqing; Li, Xinxi; Ge, Jianfang; Li, Canbing

doi:10.1039/d1ra08929c

Cited by 8 publications

(5 citation statements)

References 45 publications

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“…Boron nitride, which has a unique combination of high heat conductivity and high electrical insulation, is often used in experiments as a filler in TIMs. One experiment showed that using surface-modified spherical boron nitrides (SBNs) reduced maximum temperature [119]. The silicone rubber matrix was also studied to incorporate hexagonal boron nitride (h-BN) as a filler to increase thermal conductivity.…”

Section: Boron Used In Btmsmentioning

confidence: 99%

Review of Boron Compounds in Lithium Batteries: Electrolyte, Anode, Cathode, Separator, and Battery Thermal Management System (BTMS)

Zheng¹

2022

Preprint

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Lithium batteries and an increasing focus on CO2 reduction have become an integral part of daily life and business for many people. Boron and boron compounds have been widely studied together in the history and development of lithium batteries. With a broad examination of battery components and systems but a boron-centric approach to raw materials, this review seeks to summarize past and recent studies on the following: which boron compounds are studied in lithium battery, in which parts of lithium batteries, what improvements are offered for battery performance, and what improvement mechanisms can be explained. The uniqueness of boron and its extensive application beyond batteries contextualizes the interesting similarity with studies on batteries. The paper predominantly focuses on lithium-ion batteries (LIBs) but also mentions other lithium batteries. At the end, the article aims to predict prospective trends for future studies that may lead to the successful and extensive use of boron compounds on a commercial scale.

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Section: Boron Used In Btmsmentioning

confidence: 99%

Review of Boron Compounds in Lithium Batteries: Electrolyte, Anode, Cathode, Separator, and Battery Thermal Management System (BTMS)

Zheng¹

2022

Preprint

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“…The paraffin wax-based composite, with a loading of 20 wt% highly ordered and interconnected hexagonal boron nitride (hBN) networks, shows a thermal conductivity of 1.86 W•m −1 •K −1 , which is four times higher than the similar composite but with the unoriented filler and eight times higher than that of unfilled paraffin [5]. A simple modification of the surface of BN (spherical particles) with SiO 2 , followed by incorporation into epoxy-silicone resin matrix, led to a material with improved thermal conductivity of 3.1 W•m −1 •K −1 , which is about 24% higher than unmodified BN particles and able to support the temperature distribution of a battery module [16]. Due to their very good insulating, mechanical and thermal properties, as well as good adhesion and ease of processing, silicone-based materials are preferred in many applications [17,18].…”

Section: Introductionmentioning

confidence: 96%

Scalable Silicone Composites for Thermal Management in Flexible Stretchable Electronics

Stiubianu¹,

Bele²,

Grigoraş

et al. 2022

Batteries

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Hexagonal boron nitride (hBN) has been incorporated, as an active filler, in a customized silicone matrix to obtain high thermal conductivity composites, maintaining high flexibility and low dielectric permittivity, which are of interest for heat dissipation in energy storage systems (e.g., batteries or supercapacitors) and electronics. By the proper processing of the filler (i.e., hydrophobization with octamethylcyclotetrasiloxane and ultrasonic exfoliation) and its optimal loading (i.e., 10 wt%), composites with thermal conductivity up to 3.543 W·m−1·K−1 were obtained. Conductive heat flow (−280.04 W), measured in real heating–cooling conditions, proved to be superior to that of a commercial heatsink paste (−161.92 W), which has a much higher density (2.5 g/cm3 compared to 1.05 g/cm3 of these composites). The mechanical and electrical properties are also affected in a favorable way (increased modulus and elongation, low dielectric losses, and electrical conductivity) for applications as thermal management materials.

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“…The obtained composite material was then used to cover prismatic batteries, which has led to an improved heat dissipation [20,21]. A modified silicone-based resin, resulting from adding 1 wt.% spherical boron nitrides, was used as a thermal interface on the surface of the liquid cooling plate of a battery module [22]. It was found that the maximum temperature of the battery module could be maintained within the operational limit of 42 • C, as well as that the temperature difference could be controlled within 5 • C by BTMS.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of a Thermal Management System Using Composite Flame-Retardant Resin and Its Effect on Battery Life Span

Mariasiu,

Szabo,

Buidin

2024

Sustainability

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One of the obstacles to the adoption of electric vehicles as a future pollution-free transport solution is that the energy sources (batteries) have not yet become sustainable through a long-life span under the specific operating conditions. The problem that arises is that high temperatures inside the batteries represent a safety risk and have negative effects on the battery life span, which imposes the use of thermal management systems. The present article aims to analyze, by numerical methods, the effect of the use of a fireproof composite resin on the efficiency of the thermal management system, specifically on the degree of battery sustainability (measured by the effect on the life span). Five constructive variants are proposed and thermally analyzed. Based on the measured temperatures, the intensity of the chemical reactions that occur in a 18650-type Li-ion cell was calculated, and conclusions related to the impact on the life span were drawn. It has been found that the use of a fireproof composite resin leads to an increased heat transmission towards the outer environment and an increase in the life span by 22.2% compared to that noted for conventional air cooling. The results also recommend the use of heat exchangers associated with flame retardant resins, which leads to a 20.6% improvement in the heat transfer capacity of the battery’s thermal management system. When comparing the solutions in which the flame-retardant resin is used, the results show that adding 3 wt.% of nanomaterial leads to a significant life span increase of 11.7% when compared to the results for the resin-only case.

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Liquid cooling system for battery modules with boron nitride based thermal conductivity silicone grease

Abstract: Heat-conductive silicone grease (HCSG), one of the most common composite thermal interface materials (TIMs) used in many advanced applications, is limited by its low thermal conductivity (TC).

Cited by 8 publications

References 45 publications

Review of Boron Compounds in Lithium Batteries: Electrolyte, Anode, Cathode, Separator, and Battery Thermal Management System (BTMS)

Review of Boron Compounds in Lithium Batteries: Electrolyte, Anode, Cathode, Separator, and Battery Thermal Management System (BTMS)

Scalable Silicone Composites for Thermal Management in Flexible Stretchable Electronics

Numerical Simulation of a Thermal Management System Using Composite Flame-Retardant Resin and Its Effect on Battery Life Span

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