An All-Solid-State Coaxial Structural Battery Using Sodium-Based Electrolyte
| Autor: | Maria Helena Braga, Pedro P. Camanho, Federico Danzi |
|---|---|
| Přispěvatelé: | Faculdade de Engenharia |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Battery (electricity)
Materials science Coaxial cable composite materials Pharmaceutical Science Organic chemistry Electrolyte Electrochemistry Article Analytical Chemistry law.invention QD241-441 law Drug Discovery Specific energy Physical and Theoretical Chemistry Composite material structural batteries Electric potential energy sodium solid electrolyte Cathode Chemistry (miscellaneous) Molecular Medicine ferroelectric multifunctional materials Coaxial |
| Zdroj: | Molecules, Vol 26, Iss 5226, p 5226 (2021) Molecules Volume 26 Issue 17 Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP |
| ISSN: | 1420-3049 |
| Popis: | The transition to a sustainable society is paramount and requires the electrification of vehicles, the grid, industry, data banks, wearables, and IoT. Here, we show an all-solid-state structural battery where a Na+-based ferroelectric glass electrolyte is combined with metallic electrodes/current collectors (no traditional cathode present at fabrication) and thin-ply carbon-fiber laminates to obtain a coaxial multifunctional beam. This new concept aims to optimize the volume of any hollow beam-like structure by integrating an electrochemical system capable of both harvesting thermal and storing electrical energy while improving its mechanical performance. The coaxial cell is a coaxial cable where the dielectric is ferroelectric. The electrochemical results demonstrated the capability of performing three-minute charges to one-day discharges (70 cycles) and long-lasting discharges (> 40 days at 1 mA) showing an energy density of 56.2 Wh.L−1 and specific energy of 38.0 Wh.kg−1, including the whole volume and weight of the structural cell. This is the highest specific energy among safe structural cells, while no Na+-based structural cells were found in the literature. The mechanical tests, instead, highlighted the coaxial cell capabilities to withstand severe inelastic deformation without compromising its functionalities, while increasing the flexural strength of the hosting structure. Moreover, the absence of alkali metals and liquid electrolytes together with its enhanced thermal properties makes this coaxial structural battery a valid and safe alternative as an energy reservoir for all the applications where traditional lithium-ion batteries are not suitable. |
| Databáze: | OpenAIRE |
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