National technology award for pulse energy storage capacitors

What materials are used in energy storage capacitors?

The widespread application of dielectric materials in pulse power technologies for example accelerators and electromagnetic pulse weapons has led to their increasing attention in energy storage capacitors . Currently, dielectric materials used for capacitors include ceramic, polymer, glass-ceramic, and ceramic-polymer composite [2, 3].

Is NN-sbtz-0.01sm a potential energy storage capacitor?

In addition, the NN-SBTZ-0.01Sm ceramic also had a high PD (21.5 MW/cm 3), a high CD (268 A/cm 2), and an ultrafast discharge rate (35 ns). According to the results above, the NN-SBTZ-0.01Sm ceramic is a potential energy storage capacitor.

Can csnns glass-ceramics be used in pulse power systems?

At an electric field of 100 kV/cm, the effective energy storage density is 0.23 J/cm 3, and the energy storage efficiency is 72 %. These results underscore the potential of CSNNS glass-ceramics as a promising dielectric material for applications in pulse power systems.

What are the characteristics of a pulse power capacitor?

In pulse power technology, capacitors must maintain good thermal stability and fast discharge capability except for high Wrec and η. Research has shown that Sr 0.7 Bi 0.2 TiO 3 (SBT) exhibits excellent temperature stability due to the good relaxation behavior induced by Bi 3+ doping in SrTiO 3 ceramics [, , ].

What is the difference between NBT based and Nanbo 3 based capacitors?

Unlike with NaNbO 3 based pulsed capacitors [ 61 ], pulse discharge energy density (W D) (see Fig. 9) and Power density (see Fig. 8) of NBT-based are increased with increasing temperature, which are favorable for superior pulse discharge properties at high temperature.

Can ceramic compounds be used as pulse power capacitors?

Owing to the higher polarization under low field than most of the reported compounds, the 0.93NBT-0.07LA ceramic possesses an ultra-high W d under low field compared with other bulk ceramics. Therefore, these ceramic compounds could be potentially applied as pulse power capacitors. Fig. 6.