Pei high temperature resistant energy storage

Is Pei a good choice for energy storage?

Consequently, the PEI hybrid film exhibits a discharged energy density of 4.01 J/cm 3 and a charge-discharge efficiency of 91% at 150 °C. The high throughput and easy processing of the PEI hybrid film makes it a potential choice for energy storage under harsh conditions.

Is polyetherimide a high-temperature-resistant energy storage dielectric material?

However, energy storage dielectric materials still face significant challenges, including low energy density and poor thermal stability. In this study, polyetherimide (PEI), a high-temperature-resistant material, is selected as the subject of investigation. A bifunctional three-layer structure is designed to effectively regulate charge carriers.

Is Pei-BNNS a high-temperature energy storage material?

The results show that the obtained PEI-BNNS/PP- y wt % HfO 2 /PEI-BNNS composite (abbreviated as BHB- y) is a promising high-temperature energy storage material. BHB-3 achieves the highest Ud of 12.01 J/cm 3 and η of 91.05% at a high temperature (150°C).

How efficient is the Pei composite?

The results demonstrate that the PEI composite achieves optimal performance when 2 µm of 4-NB/PEI is used as the surface layer, with F 4 TCNQ/PEI serving as the intermediate layer. Under these conditions, the energy density reaches 6.14 J cm −3 at 150 °C, with an energy efficiency of 93.26%.

How Polyetherimide is used in high temperature energy storage?

Structural design of polyetherimide using copolymerization. High electron affinity dianhydrides serve as carrier traps. Novel polyetherimide has excellent high-temperature energy storage performance. Polyetherimide (PEI) for high-temperature energy storage still face the critical problem of low discharged energy density.

Why is Pei a good insulation material?

Because it has excellence in high-temperature insulation properties, good processability, superior mechanical resistance and low cost [2, 8, 9]. Unfortunately, the high leakage current caused by high temperature and field leads to the Ud and η of PEI drop rapidly.