Understanding the charge/discharge mechanism of batteries plays an important role in the development of high-performance systems,but extremely complicated reactions are *** these complex phenomena are also bottlenecks...
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Understanding the charge/discharge mechanism of batteries plays an important role in the development of high-performance systems,but extremely complicated reactions are *** these complex phenomena are also bottlenecks for the establishment of all-sol id-state batteries(ASSB),we conducted multi-scale analysis using combined multi-measurement techniques,to directly observe charge/discharge reactions at hierarchical scales for the oxide-type ASSB using Na as the carrier *** particular,all of measurement techniques are applied to cross-section ASSB in the same cell,to complementarily evaluate the elemental distributions and structural *** Operando scanning electron microscopy-energy-dispersive X-ray spectroscopy,the Na concentration in the electrode layers changes on the micrometer scale under charge/discharge reactions in the first ***,Operando Raman spectroscopy reveal changes in the bonding states at the atomic scale in the active material,including changes in reversible structural *** cycling the ASSB,the elemental distributions are clearly observed along with the particle shapes and can reveal the Na migration mechanism at the nanometer scale,by time-of-flight secondary ion mass ***,this study can provide a fundamental and comprehensive understanding of the charge/discharge mechanism by observing reaction processes at multiple scales.
This article presents an open-loop fractional output divider (FOD) that employs a replica-digital-to-time converter (DTC)-free background calibration. To support fractional division operation, the divider is modulated...
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This letter presents the codesign of a 2.4-GHz CMOS rectifier and an antenna for efficiency enhancement at low input power. The RF differential-driven rectifier architecture is used to lower the driving voltage requir...
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In this work, the temporal response of the transient displacement currents in a metal-insulator-semiconductor (MIS) tunnel diode with a 3-nm oxide layer under low-voltage operation ( leq 1 V) was analyzed by analytica...
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This work proposes a hybrid two-stage analog-to-digital converter (ADC) consisting of a coarse 3.3-V successive-approximation register (SAR) ADC and a fine 1.8-V comparator-based (CB) incremental Δ Σ modulator (ISDM...
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This article proposes the implementation of a captive portal system on a microcontroller to assess users' maturity regarding the safe use of public Wi-Fi networks. The use of public Wi-Fi networks has become incre...
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A 36-Gb/s 2× half-baud-rate (THBR) adaptive receiver (RX) is presented. The pattern-based adaptation method for adjusting the frequency response of a continuous-time linear equalizer (CTLE) is proposed. In additi...
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This article presents a 40-Gb/s (25.6 GBaud) quarter-rate receiver utilizing three-level pulse amplitude modulation (PAM). The continuous-time linear equalizer (CTLE) with a passive high-pass filter provides a boostin...
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In a multiuser multiple-input multiple-output (MU-MIMO) downlink system, users are susceptible to interuser interference (IUI) because of data being simultaneously transmitted over the same time-frequency resources. C...
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Machine learning (ML) has been widely adopted in neural signal processing and support vector machine (SVM) stands out for its efficacy given limited training data. The constrained battery capacity of implanted devices...
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