Extended Temperature Research Articles

Performances of PMMA-Based Optical Fiber Bragg Grating Sensor in Extended Temperature Range

PMMA based optical fiber Bragg grating (POFBG) sensors are investigated in an environmental chamber with controlled temperature and relative humidity at temperature extended to 70 °C. At below a critical temperature of 50 °C the POFBG sensor exhibits good linearity and sensitivity for both temperature and humidity sensing. Nonlinear responses are observed at higher temperature, giving rise to varying, reduced magnitudes of sensitivities. An important feature of POFBG humidity sensing is observed at above critical temperature where the POFBG humidity sensitivity turns from positive to negative. A theoretical model based on Lorentz–Lorenz equation is presented to estimate the dependence of POFBG refractive index on temperature and relative humidity. The experimental results qualitatively agree with the theoretical analyses.

Origin of the negative temperature coefficient of resistivity in the half-Heusler antimonides LuNiSb and YPdSb

The electrical transport in the half-Heusler phases LuNiSb and YPdSb was measured in a temperature range 2--300 K. For both compounds, the electrical resistivity was found to decrease with increasing temperature, showing a linear-in-$T$ behavior over an extended temperature interval. In order to interpret the experimental data, a two-channel conductivity model was applied, which revealed that not only the semiconducting-like transport but also the metallic-like one exhibit negative temperature coefficients. The unusual behavior in the metallic channel was described within the Cote-Meisel formalism based on the diffraction model of strongly disordered metals. In addition, a weak localization scenario was considered including spin-orbit scattering and Coulomb interaction between conducting electrons. The electron-electron interaction was found most important at the lowest temperatures, where the semiconducting channel becomes ineffective, reminiscent of charge transport confined to a narrow yet finite-size metallic band located inside the semiconducting energy gap. The low-temperature resistivity of YPdSb appeared fully describable in terms of the Altshuler-Aronov quantum correction due to interacting electrons. In turn, the electronic transport in LuNiSb was found affected by the Kondo effect associated with a small amount of paramagnetic impurities present in the specimen investigated. The approach developed for LuNiSb and YPdSb can be applied to other half-Heusler compounds that exhibit atom disorder in their crystal structures.

Towards Higher Electric Conductivity and Wider Phase Stability Range via Nanostructured Glass-Ceramics Processing.

This review article presents recent studies on nanostructured glass-ceramic materials with substantially improved electrical (ionic or electronic) conductivity or with an extended temperature stability range of highly conducting high-temperature crystalline phases. Such materials were synthesized by the thermal nanocrystallization of selected electrically conducting oxide glasses. Various nanostructured systems have been described, including glass-ceramics based on ion conductive glasses (silver iodate and bismuth oxide ones) and electronic conductive glasses (vanadate-phosphate and olivine-like ones). Most systems under consideration have been studied with the practical aim of using them as electrode or solid electrolyte materials for rechargeable Li-ion, Na-ion, all-solid batteries, or solid oxide fuel cells. It has been shown that the conductivity enhancement of glass-ceramics is closely correlated with their dual microstructure, consisting of nanocrystallites (5–100 nm) confined in the glassy matrix. The disordered interfacial regions in those materials form “easy conduction” paths. It has also been shown that the glassy matrices may be a suitable environment for phases, which in bulk form are stable at high temperatures, and may exist when confined in nanograins embedded in the glassy matrix even at room temperature. Many complementary experimental techniques probing the electrical conductivity, long- and short-range structure, microstructure at the nanometer scale, or thermal transitions have been used to characterize the glass-ceramic systems under consideration. Their results have helped to explain the correlations between the microstructure and the properties of these systems.

Osmotic tolerance of rabbit spermatozoa is affected by extender composition and temperature

Sperm osmotic adaptability to anisosmotic conditions is important for sperm epididymal maturation, motility activation at ejaculation, and female tract colonization, or for conducting technological procedures such as cryopreservation. Several factors affect this adaptability, including the fluid composition that contributes to water flow dynamics, and the temperature at which osmotic stress is initiated. This study was designed to investigate the effect of medium composition (electrolyte- or sugar-based extender) and temperature (25 and 5 °C) on rabbit sperm adaptability to anisosmotic conditions. Rabbit spermatozoa, therefore, were diluted at both temperatures (25 and 5 °C) in electrolyte- or sugar-based media at increasing osmotic conditions (100 to 1,000 mOsm/kg), and values for sperm variables (sperm kinetics, membrane integrity, mitochondrial membrane potential) were estimated as endpoints. Sperm kinetics seemed to be more sensitive to osmotic stress than membrane integrity or mitochondrial function. The effect of moderate hypoosmotic stress did not differ when there was use of sugar- and electrolyte-based extenders at 25 °C (P > 0.05). In hyper-tonic conditions at 25 °C, the sugar-based extender was more effective in protecting sperm membrane integrity and mitochondrial function (P < 0.05). The lesser temperature made the differences more relevant because of the detrimental effect of hyperosmotic stress was more evident in the electrolyte-based extender at 5 °C (P < 0.05). The results from this study indicated rabbit spermatozoa have different adaptability to anisosmotic conditions induced by sugar- and electrolyte-based media and that the temperature at which the osmotic stress is initiated affects the cellular response.

Temperature effects on the vibrational properties of the Cs2SnX6 ‘defect’ perovskites (X = I, Br, Cl)

Air-stable, vacancy-ordered double perovskites Cs2SnX6 (X = Cl, Br, I) have been attracting particular interest due their potential applications in solar cells and thermoelectrics based on their favorable structural, optical and transport properties. In this work, a comprehensive Raman investigation of Cs2SnX6 perovskites is performed over an extended temperature range of 83–433 K in order to provide insight to their lattice dynamics. Substitution of the lighter and more electronegative Cl halogens with the heavier bromide and iodide ones resulted in the decrease of the frequencies for all Raman modes comprising the internal vibrations in the SnX6 octahedra and the νL(F2g) mode due to Cs vibrations against SnX6 in the rigid lattice. Blue shift and narrowing of the SnX6 stretching and bending bands was invariably observed for all halogen analogues with temperature decrease, evidencing the presence of lattice anharmonicity. More importantly, the elusive νL(F2g) phonon was only observed for Cs2SnCl6 for all temperatures, complying with the predictions of Hirshfeld surface analysis for the enhanced Cs–SnCl6 interactions. The latter mode emerged for Cs2SnI6 only above room temperature, indicating that combination of anharmonic lattice dynamics with the increased Cs–SnI6 oscillation energy upon increasing temperature may activate this specific “lattice mode”, which in the limit of very weak Cs–I interaction approaches the “rattling’’ Cs vibrations in the cuboctahedral cage. Strong lattice anharmonicity for the chemically stable Cs2SnX6 compounds can be accordingly inferred, which is a key aspect for their performance in future optoelectronic and thermoelectric applications.

Temperature Induced Physiological Reaction Norms of the Coccolithophore Gephyrocapsa oceanica and Resulting Coccolith Sr/Ca and Mg/Ca Ratios

Coccolithophores are one of the major contributors to the pelagic production of calcium carbonate and their fossilized remains are a key component of the biogeochemical cycles of calcium (Ca), magnesium (Mg), and other divalent cations present in the intracellular precipitated calcitic structures (coccoliths). The geochemical signature of coccoliths (e.g., Sr/Ca and Mg/Ca ratios) is used as paleoproxy to reconstruct past environmental conditions and to understand the underlying physiological precipitation kinetics. Here, we present the elemental fractionation of Sr and Mg in calcite of the coccolithophore Gephyrocapsa oceanica from controlled laboratory experiments applying an extended temperature gradient (12 to 27°C). The physiological reaction norm of G. oceanica, in terms of growth rate, exhibited optimum behavior while the partition coefficient of Sr (DSr) was linearly correlated with temperature and DMg indicated no specific trend. Our results indicate: (1) a presumably secondary physiological control of DSr, and (2) the importance of calibrating coccolithophore-based proxies using experiments that include the full physiological reaction norms (i.e., a possible non-linear response) to environmental drivers (e.g., temperature, salinity, and pH, etc.). The presented results contribute to an improved understanding of the underlying physiological kinetics involved in regulating coccolith elemental fractionation and give additional implications for designing future laboratory experiments to calibrate and apply coccolithophore based paleoproxies on the fossil sediment record.

Generic Seebeck effect from spin entropy

How magnetism affects the Seebeck effect is an important issue of wide concern in the thermoelectric community but remains elusive. Based on a thermodynamic analysis of spin degrees of freedom on varied d-electron-based ferromagnets and antiferromagnets, we demonstrate that in itinerant or partially itinerant magnetic compounds there exists a generic spin contribution to the Seebeck effect over an extended temperature range from slightly below to well above the magnetic transition temperature. This contribution is interpreted as resulting from transport spin entropy of (partially) delocalized conducting d electrons with strong thermal spin fluctuations, even semiquantitatively in a single-band case, in addition to the conventional diffusion part arising from their kinetic degrees of freedom. As a highly generic effect, the spin-dependent Seebeck effect might pave a feasible way toward efficient “magnetic thermoelectrics.”

Size-resolved atmospheric ice-nucleating particles during East Asian dust events

Abstract. Asian dust is an important source of atmospheric ice-nucleating particles (INPs). However, the freezing activity of airborne Asian dust, especially its sensitivity to particle size, is poorly understood. In this study we report the first INP measurement of size-resolved airborne mineral dust collected during East Asian dust events. The measured total INP concentrations in the immersion mode ranged from 10−2 to 102 L−1 in dust events at temperatures between −25 and −5 ∘C. The average contributions of heat-sensitive INPs at three temperatures, −10, −15, and −20 ∘C, were 81±12 %, 70±15 %, and 38±21 %, respectively, suggesting that proteinaceous biological materials have a substantial effect on the ice nucleation properties of Asian airborne mineral dust at high temperatures. The dust particles which originated from China's northwest deserts are more efficient INPs compared to those from northern regions. In general, there was no significant difference in the ice nucleation properties between East Asian dust particles and other regions in the world. An explicit size dependence of both INP concentration and surface ice-active-site density was observed. The nucleation efficiency of dust particles increased with increasing particle size, while the INP concentration first increased rapidly and then leveled, due to the significant decrease in the number concentration of larger particles. A new set of parameterizations for INP activity based on size-resolved nucleation properties of Asian mineral dust particles were developed over an extended temperature range (−35 to −6 ∘C). These size-dependent parameterizations require only particle size distribution as input and can be easily applied in models.

A solid-like dual-salt polymer electrolyte for Li-metal batteries capable of stable operation over an extended temperature range

Solid polymer electrolytes (SPEs) and gel polymer electrolytes (GPEs) show great promise for the realization of commercial, high performance Li-metal batteries (LMBs). However, the interfacial and high-temperature instability of GPEs, and the low room-temperature ionic conductivity of SPEs still limit their practical implementation. This article presents a solid-like dual-salt polymer electrolyte (DSPE), consisting of coordinated solvents and thermally stable Li-salts within a temperature-resistant polymer matrix, as a promising new strategy for addressing these issues. The developed DSPE demonstrates high ionic conductivity of 0.16, 0.73, and 1.93 mS cm−1 at −20, 20, and 100 °C, respectively. Li|DSPE|LiFePO4 batteries using this DSPE deliver an initial discharge capacity of 151 mAh g−1 at 0.5C, a rate performance of 123 mAh g−1 at 3C, and excellent long-term stability with a retained capacity of 143 mAh g−1 after 500 cycles at 0.5C and 23 °C. Further, the battery shows stable cycling between −10 °C and 80 °C. This impressive electrochemical performance is ascribed to the high Li+ conductivity of the membrane, the stabilization of the Al current collector, and the formation of a robust, LiF-rich solid-electrolyte interphase containing conductive Li-B-O-based species.

Effects of growth temperature change in quantum well on luminescence performance and optical spectrum

This paper discusses the effects of extended temperature change time of InGaN well growth on the luminescent properties of blue LEDs with sapphire substrate. Extending the temperature change time will increase the area of the In composition gradient in the quantum well, thereby changing the PL luminescence peak shape, which is conducive to increasing the brightness of the LED. The change of EL-luminescent peaks under different current is further studied. In combination with PL, the source of the shoulder peak on the long-wave-side of the main luminescent peak in the blue light InGaN quantum well growing on the sapphire substrate is explored under normal temperature condition. One illumination mechanism related to a main illuminating center provides a research direction for the improvement of the photoelectric performance of the blue-light LED.

Rate Constant of the Reaction of OH Radicals with HBr over the Temperature Range 235-960 K.

The kinetics of the reaction of hydroxyl radicals with HBr, important in atmospheric and combustion chemistry, has been studied in a discharge flow reactor combined with an electron impact ionization quadrupole mass spectrometer in the temperature range 235-960 K. The rate constant of the reaction OH + HBr → H2O + Br (1) was determined using both a relative rate method (using the reaction of OH with Br2 as a reference) and absolute measurements, monitoring the kinetics of OH consumption under pseudo-first-order conditions in excess of HBr. The observed U-shaped temperature dependence of k1 is well represented by the sum of two exponential functions: k1 = 2.53 × 10-11 exp(-364/T) + 2.79 × 10-13 exp(784/T) cm3 molecule-1 s-1 (with an estimated conservative uncertainty of 15% at all temperatures). This expression for k1, recommended for T = 240-960 K, combined with that from previous low temperature studies, k1 = 1.06 × 10-11 (T/298)-0.9 cm3 molecule-1 s-1 at T = 23-240 K, allows to describe the temperature behavior of the rate constant over an extended temperature range 23-960 K. The current direct measurements of k1 at temperatures above 460 K, the only ones to date, provide an experimental dataset for use in combustion and volcanic plume modeling and an experimental basis to test theoretical calculations.

Thermal Behavior and Micro Structure of TKX‐50

AbstractThe thermal behaviour of TKX‐50 was reinvestigated in an extended temperature range by means of temperature resolved X‐ray diffraction. TKX‐50, synthesized at the Fraunhofer ICT, was identified using Rietveld‐analysis and reference data from the CCDC. Monitoring the refined crystal data versus temperature verified a highly anisotropic expansion behavior connected to a layer structure. However, the coefficients of thermal expansion (CTEs) were found at an order of magnitude higher than reported, and a slight bent of lattice parameter a was found near room temperature. At temperatures between 180 and 200 °C the decomposition of TKX‐50 started with the formation of 1 to 5 wt.% diammonium 5,5’‐bistetrazole‐1,1’‐diolate (ABTOX). Moreover, the micro structure was investigated by means of size/strain analysis and so called indexed Williamson‐Hall plot. The analysis revealed moderate micro strain and absence of size broadening. The results give rise to the hypothesis that the (010) layer structure supports a low sensitivity of TKX‐50 without impairment of the mechanical stability. The results provide a base for future quality assessment and the development of advanced products.

Experimental recalibration of the Cr-in-clinopyroxene geobarometer: improved precision and reliability above 4.5 GPa

The pressure dependence of the exchange of Cr between clinopyroxene and garnet in peridotite is applicable as a geobarometer for mantle-derived Cr-diopside xenocrysts and xenoliths. The most widely used calibration (Nimis and Taylor Contrib Miner Petrol 139: 541–554, 2000; herein NT00) performs well at pressures below 4.5 GPa, but has been shown to consistently underestimate pressures above 4.5 GPa. We have experimentally re-examined this exchange reaction over an extended pressure, temperature, and compositional range using multi-anvil, belt, and piston cylinder apparatuses. Twenty-nine experiments were completed between 3–7 GPa, and 1100–1400 °C in a variety of compositionally complex lherzolitic systems. These experiments are used in conjunction with several published experimental datasets to present a modified calibration of the widely-used NT00 Cr-in-clinopyroxene (Cr-in-cpx) single crystal geobarometer. Our updated calibration calculates P (GPa) as a function of T (K), CaCr Tschermak activity in clinopyroxene left( {a_{{{text{CaCrTs}}}}^{{{text{cpx}}}} } right), and Cr/(Cr + Al) (Cr#) in clinopyroxene. Rearranging experimental results into a 2n polynomial using multiple linear regression found the following expression for pressure:Pleft( {{text{GPa}}} right) = 11.03 + left( { - T{ }left( {text{K}} right){text{ ln}}(a_{{{text{CaCrTs}}}}^{{{text{cpx}}}} ) times 0.001088{ }} right) + left( {1.526 times {text{ln}}left( {frac{{{text{Cr}}#^{{{text{cpx}}}} }}{{T{ }left( {text{K}} right)}}} right)} right){ }where {text{Cr}}#^{{{text{cpx}}}} = left( {frac{{{text{Cr}}}}{{{text{Cr}} + {text{Al}}}}} right), a_{{{text{CaCrTs}}}}^{{{text{cpx}}}} = {text{Cr}} - 0.81 cdot {text{Cr}}#^{{{text{cpx}}}} cdot left( {{text{Na}} + {text{K}}} right), with all mineral components calculated assuming six oxygen anions per formula unit in clinopyroxene.Temperature (K) may be calculated through a variety of geothermometers, however, we recommend the NT00 single crystal, enstatite-in-clinopyroxene (en-in-cpx) geothermometer. The pressure uncertainty of our updated calibration has been propagated by incorporating all analytical and experimental uncertainties. We have found that pressure estimates below 4 GPa, between 4–6 GPa and above 6 GPa have associated uncertainties of 0.31, 0.35, and 0.41 GPa, respectively. Pressures calculated using our calibration of the Cr-in-cpx geobarometer are in good agreement between 2–7 GPa, and 900–1400 °C with those estimated from widely-used two-phase geobarometers based on the solubility of alumina in orthopyroxene coexisting with garnet. Application of our updated calibration to suites of well-equilibrated garnet lherzolite and garnet pyroxenite xenoliths and xenocrysts from the Diavik-Ekati kimberlite and the Argyle lamproite pipes confirm the accuracy and precision of our modified geobarometer, and show that PT estimates using our revised geobarometer result in systematically steeper paleogeotherms and higher estimates of the lithosphere‒asthenosphere boundary compared with the original NT00 calibration.

A novel tunable bandgap voltage and current reference generation circuit

This paper presents a CMOS based tunable bandgap voltage and current reference generation circuit. The proposed circuit is designed without using Bipolar Junction Transistors (BJTs) for Proportional-To-Absolute-Temperature and Complementary-To-Absolute-Temperature generation, thus eliminating the problem of implementing BJT in CMOS fabrication process. The proposed circuit is simulated in standard 180 nm CMOS technology. A constant reference voltage ( $$V_{ref}$$ ) from 850 mV to 1.14 V and a constant reference current ( $$I_{ref}$$ ) from 170 to 227 nA is generated for corresponding supply voltage ( $$V_{dd}$$ ) tuned from 1.5 to 2 V for low power applications with an extended temperature range from − 55 to 175 $$^{\circ }$$ C. The proposed circuit at $$V_{dd}$$ = 1.8 V has a Temperature Coefficient (TC) of 0.37 and 0.53 ppm/ $$^{\circ }$$ C for $$V_{ref}$$ and $$I_{ref}$$ respectively, with a total power consumption of 594 nW (at $$V_{ref}$$ = 1.02 V and $$I_{ref}$$ = 204.5 nA). A monte-carlo simulation of the design is done for 1000 samples. The monte-carlo simulation for $$\hbox {V}_{{ref}}$$ , $$\hbox {I}_{{ref}}$$ and TC is done across the $$\hbox {V}_{{dd}}$$ (i.e. $$\hbox {V}_{{dd}} = 2\,\hbox {V}$$ to 1.5 V).

Magnetic properties of an ACSR conductor steel core at temperatures up to 230 ∘C and their impact on the transformer effect

The current density distribution between layers of steel-reinforced conductors having an odd number of aluminum layers is modified by the transformer effect, as a result of the steel core magnetisation. This redistribution of current affects the conductor alternating current resistance, the transitory temperature radial distribution, and depends on the total current intensity, and the core permeability, which varies with temperature. Although some steel-cored conductors are designed to operate at high temperatures to maximise their current capacity, the core magnetic properties in this scenario need to be further investigated. This paper presents the results of experimental work on an ACSR conductor, and on its steel core to investigate the steel core magnetic properties over an extended temperature range, and how they affect the transformer effect. Results show an unexpected hump-shaped variation of the permeability with temperature in a specific range of magnetic field strength, with maximum permeability values occurring at a temperature ranging from 150 to 170 ∘ C , which were not covered in previous studies. A similar behaviour is seen in the variation of the axial magnetic flux with increasing conductor temperature, causing the flux to decrease at high temperatures, and thus weakening the transformer effect during the conductor operation.

Accurate non-linear calculation model for decoupling thermal and mechanical loading effects in the OBR measurements.

Fiber optic sensors are increasingly used in several fast-growing industries. Aerospace, energy storage, and the medical sector consider new implementations of optical fibers mainly for condition monitoring purposes. Applications using optical fibers entail measurements of distributed strains and temperatures. However, the spectral shifts of transmitted and reflected light are simultaneously sensitive to both of these influences. This coupled sensitivity can introduce large errors for signal interpretation. An accurate calculation model for signal decoupling is necessary to distinguish pure mechanical strains from pure thermal loading. Approaches where the spectral shift is assumed to vary linearly with temperature give large errors when the temperature variation is high. This investigation derives and validates a new temperature formula that is used for high precision strain and temperature discrimination. The non-linear temperature formula is deduced from physics-based models and is validated with Rayleigh backscattering based OBR measurements. Our calculation approach demonstrates improved accuracy over an extended temperature range. The relationship between strain and temperature effects in the coupled mechanical and thermal loading environment is further studied in detail.

Reliability Study of Miniaturized Surface Acoustic Wave RF-Filters With Copper Pillar Bump Interconnections

Microacoustic radio frequency filters are essential electronic components for all devices using wireless communication. For miniaturization and cost reduction it is necessary to further reduce the area for the electrical contacts on the chip. CPB (copper pillar bump) interconnections on radio frequency filters can release valuable chip design area of up to 26 % compared to standard SB (solder bump) interconnections on a Qualcomm TFAP (Thin Film Acoustic Package). We developed a process to deposit CPB interconnections on microacoustic radio frequency filters. A 1.20 mm $\times1.60$ mm SAW (surface acoustic wave) LTE (Long Term Evolution) band 26 duplexer with a height of 0.20 mm including the CPB interconnections was investigated. Unbiased highly accelerated stress test, damp heat steady state, dry heat, and temperature cycling reliability tests have shown that the new interconnection technology fulfills the reliability requirements of the smart device industry. Two failure modes caused by extended temperature cycling were identified via scanning acoustic microscopy and scanning electron microscopy analyses on cross sections.

Paraffins as phase change material in a compact plate-fin heat exchanger - Part I: Experimental analysis and modeling of complete phase transitions

Thermal energy storages with phase change materials (PCM’s) based on plate-fin and tube-fin (gas-to-liquid) heat exchanger (HEX) designs show a comparatively high heat transfer performance and compactness. High heat transfer rates allow for optimal storage designs and operation close to the PCM’s phase change temperature. However, industrial-grade solid–liquid PCM’s and mixtures usually show a non-isothermal phase change behavior over an extended temperature range, sometimes with multi-step transitions, hysteresis and supercooling. These complex phenomena depend on the physical dimensions of the PCM in the HEX and the operating conditions. They need to be verified for each particular application and cannot be neglected. This contribution presents an experimental and model-based analysis of the phase transition behavior of three commercial paraffins filled in compact plate-fin HEX’s. The results indicate that non-isothermal phenomena critically affect the storage temperatures. Their impact on the thermal performance can be studied using relatively simple numerical models.

The Special Features of Simulation of the Current–Voltage Characteristics of JFETs in the Cryogenic Temperature Range

The compact models of junction field effect transistors (JFETs) used in release-quality versions of SPICE-like programs are focused only on the standard temperatures ranging from –60 to 150°C and are unworkable for an electronic circuit design in the cryogenic temperature range (below –120°C). It this study, the Low-T SPICE model of the JFET for designing electronic circuits in the extended temperature range, including the cryogenic range (from –200 to 110°С), is proposed. The model takes into account the changes in the I–V curves caused by the effect of ultralow temperature: growth of the saturation voltage VD sat, decrease of the pinch-off current Ip and steepness BETA, negative slope LAMBDA of the output I–V curves, increase of the drain–source resistance RD as the result of the freezing effect, etc. For this purpose, the dependences of the specified parameters on temperature are introduced in the model. The procedure for extracting the SPICE parameters of the Low-T SPICE model of the JFET is developed according to the results of the measurements of the standard set of the I–V curves in the cryogenic temperature range. The error of the calculation of the I–V curves is not higher than 10–15% in the temperature range from –200 to 110°C.

Significantly Improvement of Comprehensive Energy Storage Performances with Lead-free Relaxor Ferroelectric Ceramics for High-temperature Capacitors Applications

Next-generation advanced electronic markets demand high energy-storage properties dielectric materials that can operate efficiently under elevated temperatures. Here, the Sr0.85Bi0.1TiO3 modified Bi0.4465Na0.4465Ba0.057La0.05TiO3 ceramics ((1-x)BNBLT-xSBT) are designed to achieve excellent comprehensive energy storage performances. The phase field simulations and experimental results indicate that the SBT doping into BNBLT ceramics could effectively decrease grain size, resulting in enhancement breakdown strength. Consequently, excellent comprehensive performances via a superior balance between recoverable energy density (Wrec ~ 4.55 J/cm3) and efficiency (η > 90%) values have been realized in x=0.25 compositions. The corresponding ceramics exhibit impressive temperature stability (20~200 °C), fatigue endurance (105 st), and frequency stability (1~1000 Hz). More importantly, the BNBLT-0.25SBT ceramic shows a high power density (38.1 MW/cm3) and a record discharge rate (45 ns). Therefore, this work will provide a simple and effective method to develop a new category of dielectric capacitors with superior energy-storage performances over an extended temperature range.