Estimation of the Electricity Storage Volume Density of Compact SMESs of a New Concept Based on Si Microfabrication Technologies

Abstract

A compact superconducting magnetic energy storage system (SMES) produced by Si micro fabrication technologies has been proposed to improve electricity storage volume density, w, in the sub-Wh/L range of conventional SMESs and to produce them at a low cost by mass production. In parallel with the experimental development reported previously, a series of trials was performed to estimate a feasible value of w based on the calculation of the magnetic field generated by the compact SMES by improving the calculation models step by step. In this work, the experimentally obtained magnetic flux density dependence of superconductive critical current density was taken into consideration for the first time in this series of trials, together with the additional improvement of the calculation models. The results of the estimation indicated that a compact SMES produced by the proposed concept can attain a w in the Wh/L range or more, ranking with or surpassing that of presently used capacitors.

Electron–Phonon Superconductivity in Boron‐Based Chalcogenide (X= S, Se) Monolayers

“…[ 42,43 ] In addition, combining semiconductors MoS 2 to superconductors monolayer opened up a path to monolayer semiconductors as a platform for superconducting hybrid devices. [ 44 ] Interestingly, superconductivity has been induced into 2D materials since graphene has been tuned into superconductor with a critical temperature ranking from $$T_{c}=5.1$$ to $$ T_{c}=7.6$$ K by lithium decoration or by stacking layers, respectively. [ 45 ] Moreover, it has been reported in ref.…”

Special Issue: Soft and Hard Magnetic Materials: Latest Advances and Prospects

“…The second contribution, "Estimation of the Electricity Storage Volume Density of Compact SMESs of a New Concept Based on Si Microfabrication Technologies", by Tomoyoshi Motohiro, Minoru Sasaki, Joo-hyong Noh and Osamu Takai from Nagoya University, Toyota Technological Institute and Kanto-Gakuin University [2], examines methods of improving electricity storage. For this purpose, and based on previous experimental results, the authors proposed a compact superconducting magnetic energy storage system (SMES) produced via Si microfabrication technologies to increase the electricity storage volume density values, w, of SMESs to rank with or surpass those of capacitors (and to mass-produce them at a low cost).…”