Integrated Anode Electrode Composited Cu–Sn Alloy and Separator for Microscale Lithium Ion Batteries

Jiang, Kai; Yang, Shuting

doi:10.3390/ma12040603

Cited by 6 publications

(3 citation statements)

References 40 publications

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“…As exemplified in Figure 3.A, the presence of Pb 2+ in a RSSs is evidenced in CV by the apparition of a peak pair placed at E Pb2+/Pb = -0. More interestingly, comparing Figures 1A and 3A, we observed that the high amount of Cu present in the RSSs induce a considerable attenuation of the Sn and Pb metals dissolution peaks and a significant distortion of the Cu dissolution peak, suggesting the formation of the Cu-Sn [16] and Cu-Sn-Pb [17] alloys during the electrodeposition step.…”

Section: Electrochemical Measurements In Real Sample Solutionsmentioning

confidence: 79%

Sensors array for monitoring and automation of the electrochemical recovery of metals from waste printed circuit boards

Dorneanu¹,

Covaci²,

Imre-Lucaci³

et al. 2019

Studia UBB Chemia

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Nowadays there is increasing interest in using various electrochemical methods as alternative to the energy consuming physicomechanical, hydrometallurgical and pyrometallurgical techniques for metals recovery from waste printed circuit boards (WPCBs). Thus, cyclic voltammetry (CV) and cyclic square-wave voltammetry (CSWV) methods were used for studying the electrochemistry of some metals (Cu, Sn, Pb, Fe, Zn) on glassy carbon electrode from synthetic leaching solutions containing known concentrations of metallic ions and in real solution obtained from dissolving 10 WPCBs. A good linear correlation was obtained between the parameters evaluated by ICP-OES and cyclic voltammetry. The influence of pH and oxidation/reduction potential (ORP) on the corrosion rate of the mentioned metals was studied gravimetrically. Based on the obtained results, a complex sensors array (amperometric, pH, temperature and ORP) was proposed to assure the accurate monitoring and control of the electrochemical process for metals recovery from WPCBs.

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Section: Electrochemical Measurements In Real Sample Solutionsmentioning

confidence: 79%

Sensors array for monitoring and automation of the electrochemical recovery of metals from waste printed circuit boards

Dorneanu¹,

Covaci²,

Imre-Lucaci³

et al. 2019

Studia UBB Chemia

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“…Hence, supercapacitors (SC) can provide a higher power density with respect to batteries [22]. In this case, SC is used in place of lithium-ion batteries that limit instantaneous high power [23,24]. SC has a small capacity, but it has the merits to control high power output [25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Soft Start-Up Control Strategy for Dual Active Bridge Converter with a Supercapacitor

Kim

Jeong³

et al. 2020

Energies

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Renewable energy needs are steadily on the rise. Bidirectional DC/DC converters are essential in charging and discharging various storage batteries, such as PV/ESS (photovoltaic/energy storage system). A dual active bridge (DAB) converter, in particular, transfers power in both directions by phase shift using a soiled state transformer (SST). To reduce switching inrush current in batteries under high voltages, a soft start-up is demonstrated during the initial switching operation. When a supercapacitor (SC) is used as a battery, the reverse power caused by the inrush current appears under high voltage at the DC-link side. This causes serious electrical damage to the PV/ESS’ boost converter and inverter. To suppress peak overshoot voltage and stabilize soft start-up transients, we propose a three-step soft start-up controller and algorithm for bidirectional DAB converter implementation at virtual ESS and UPS. The step-by-step control strategy by OLDC (open loop duty control), OLPSC (open loop phase shift control), and OLFC (open loop frequency control) provides a stable soft start-up operation. In the initial stage of the OLDC, the duty ratio is gradually increased by the PWM (Pulse width modulation) signal. In the middle stage, a phase difference is seen as per the voltage of the SC. The OLPSC is performed to reduce the phase difference. In the final stage, the OLFC is performed to smoothly control the small phase difference. The overshoot or inrush current is drastically suppressed toward the DC-link and SC module. Consequently, we demonstrate a proposed controller and algorithm with prototype 5 kW DAB converter.

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“…15,16 Investigations of Cu 6 Sn 5 include first principle calculations and phase transition analysis on the electrode 13 and an array of fabrication methodologies. [17][18][19][20][21] The application of complex 3D microstructures 19,20 and distinct particle geometries 21,22 in these alloy electrodes are common.…”

mentioning

confidence: 99%

In Operando XANES Imaging of High Capacity Intermetallic Anodes for Lithium Ion Batteries

Malabet¹,

Juarez-Robles²,

Andrade³

et al. 2020

J. Electrochem. Soc.

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In operando 2D X-ray absorption near edge structure (XANES) imaging was performed near the Cu K-edge during cycling of Cu6Sn5 composite anodes for lithium ion batteries. Galvanostatic lithiation and delithiation with intermittent constant voltage holds near reaction plateaus show evolution of absorption spectra for active material particles. XANES spectra obtained from images taken during cycling were compared to standard spectra for Cu, Cu6Sn5, and Li2CuSn. Chemical composition was assessed for Cu-containing phases. Distinct Cu, Cu6Sn5, and Li2CuSn regions were identified for each voltage plateau. Mechanical degradation, electrode particle fracture and expansion were observed during delithiation. Movement of particles during cycling suggests that expansion also impacts the supporting secondary phases and the transport networks therein. These results demonstrate that spectroscopic X-ray imaging methods can clearly distinguish chemically distinct phases in alloy electrodes and have the versatility to observe the evolution of these phases during lithiation and delithiation.

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Integrated Anode Electrode Composited Cu–Sn Alloy and Separator for Microscale Lithium Ion Batteries

Cited by 6 publications

References 40 publications

Sensors array for monitoring and automation of the electrochemical recovery of metals from waste printed circuit boards

Sensors array for monitoring and automation of the electrochemical recovery of metals from waste printed circuit boards

Soft Start-Up Control Strategy for Dual Active Bridge Converter with a Supercapacitor

In Operando XANES Imaging of High Capacity Intermetallic Anodes for Lithium Ion Batteries

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