Thermally conductive phase change materials for batteries

Are phase-change materials suitable for battery thermal management?

Phase-change materials (PCMs) are extensively employed for battery thermal management, owing to their significant thermal storage capacity and appropriate temperature range. Nevertheless, their limitations in terms of flexibility, thermal conductivity, and susceptibility to leakage restrict their effective temperature control.

Are composite phase change materials a viable buffer for battery packs?

Composite phase change materials (PCMs) consisting of thermally conductive nanofillers and a PCM matrix can provide an effective buffer for battery packs to avoid thermal runaway. However, there remain some challenges to overcome the trade-off between thermal conductivity and phase change enthalpy.

Can phase change materials reduce transient thermal challenges?

Phase change materials (PCMs) have shown promise for mitigating transient thermal challenges. Fluid leakage and low effective thermal conductivity limit PCM adoption. Furthermore, the thermal capacitance of PCMs diminishes as their latent load is exhausted, creating an unsustainable cooling effect that is transitory.

Is there a trade-off between thermal conductivity and phase change enthalpy?

However, there remain some challenges to overcome the trade-off between thermal conductivity and phase change enthalpy. Herein, we developed a bidirectionally high thermal conductive composite PCM featuring a radially oriented structure using an arrayed radial freezing method.

Why is thermal management important in Li-ion batteries?

Effective thermal management helps prevent thermal failure in Li-ion batteries. Phase Change Materials (PCMs), known for their exceptional thermal storage capability and consistent phase change temperature, have shown immense potential for enabling energy-efficient thermal management of electronic devices.

Does CPCM improve the thermal conductivity of Li-ion batteries?

It was found that the thermal conductivity of the prepared CPCM, was improved by 23 time, and the surface temperature rise of the Li-ion battery covered with CPCM decreased by 17 %. Xu et al. prepared a new CPCM using EG as a carrier to absorb PA and graphene.