Giant Polarization in Quasi-Adiabatic Ferroelectric Na~+ Electrolyte for Solid-State Energy Harvesting and Storage

Manuela Carvalho Baptista; Hesham Khalifa; Adao AraujoBeatriz Arouca MaiaManuel SoutoMaria Helena Braga

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Giant Polarization in Quasi-Adiabatic Ferroelectric Na~+ Electrolyte for Solid-State Energy Harvesting and Storage

机译：Giant Polarization in Quasi-Adiabatic Ferroelectric Na~+ Electrolyte for Solid-State Energy Harvesting and Storage

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The advent of new solid-state energy storage devices to tackle the electricalrevolution requires the usage of nonlinear behavior leading to emergentphenomena. The ferroelectric analyzed herein belongs to a family of electrolytesthat allow energy harvesting and storage as part of its self-chargingfeatures when thermally activated. The Na_(2.99)Ba_(0.005)CIO electrolyte showsquasi-adiabatic behavior with a continuous increase in polarization uponcycling, displaying almost no hysteresis. The maximum polarization obtainedat a weak electric field is giant and similar to the remanent polarization. Itdepends on the temperature with a pyroelectric coefficient of 5.37 C m~(?2) ℃~(?1)from ?5 to 46 ℃. The emergence occurs via negative resistance and capacitance.The glass transition is found to have its origins in the sharp depolarizationat 46 - 48 ℃. Above -10 ℃, at ≈ -5 ℃, another thermal anomaly mayrely on the topologic characteristics of the A_(3-2x)Ba_xCIO (A = Li, Na, K) glasselectrolytes enabling positive feedback of the current of electrons throughoutthe surface of the inner cell. The phenomena may pave the way toward abetter understanding of dipolar nanodomain fragile glasses with exceptionalferroelectric characteristics to architect energy harvesting and storage devicesbased on multivalent thermally activated Na~+-ion-ion electrolytes.

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《Advanced functional materials》 |2023年第10期|2212344.1-2212344.13|共13页
作者
Manuela Carvalho Baptista; Hesham Khalifa; Adao AraujoBeatriz Arouca MaiaManuel SoutoMaria Helena Braga;
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作者单位

Engineering Physics Department, Engineering FacultyUniversity of Porto4200–465 Porto, Portugal;

Engineering Physics Department, Engineering FacultyUniversity of Porto4200–465 Porto, Portugal, Department of Physics, Faculty of ScienceDamanhour UniversityDamanhur 22511, Egypt;

Norleq – Equipamentos e Servi?os, Lda.Hipercentro, F, 4200–279 Porto, PortugalEngineering Physics Department, Engineering FacultyUniversity of Porto4200–465 Porto, Portugal, LAETA – INEGIInstitute of Science and Innovation in Mechanical and IndustrialEngineering4200–465 Porto, PortugalDepartment of Chemistry, CICECO-Aveiro Institute of MaterialsUniversity of Aveiro3810–393 Aveiro, Portugal;

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正文语种英语
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adiabatics; energy harvesting; energy storages; ferroelectrics; polar chains; relaxors; solid electrolytes; superparaelectrics; topologic insulators;

Giant Polarization in Quasi-Adiabatic Ferroelectric Na~+ Electrolyte for Solid-State Energy Harvesting and Storage

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