Achieving long cycle life for all-solid-state rechargeable Li-I2 battery by a confined dissolution strategy

AbstractRechargeable Li-I2 battery has attracted considerable attentions due to its high theoretical capacity, low cost and environment-friendliness. Dissolution of polyiodides are required to facilitate the electrochemical redox reaction of the I2 cathode, which would lead to a harmful shuttle effect. All-solid-state Li-I2 battery totally avoids the polyiodides shuttle in a liquid system. However, the insoluble discharge product at the conventional solid interface results in a sluggish electrochemical reaction and poor rechargeability. In this work, by adopting a well-designed hybrid electrolyte composed of a dispersion layer and a blocking layer, we successfully promote a new polyiodides chemistry and localize the polyiodides dissolution within a limited space near the cathode. Owing to this confined dissolution strategy, a rechargeable and highly reversible all-solid-state Li-I2 battery is demonstrated and shows a long-term life of over 9000 cycles at 1C with a capacity retention of 84.1%.

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Long-term reliability of the Figaro TGS 2600 solid-state methane sensor under low Arctic conditions at Toolik lake, Alaska

10.5194/amt-2019-402 ◽

2019 ◽

Cited By ~ 1

Author(s):

Werner Eugster ◽

James Laundre ◽

Jon Eugster ◽

George W. Kling

Keyword(s):

Solid State ◽

Low Cost ◽

Full Range ◽

Absolute Humidity ◽

Diel Cycles ◽

Arctic Conditions ◽

Sensor Signals ◽

Ch4 Concentration ◽

Reference Measurements

Abstract. The TGS 2600 was the first low-cost solid state sensor that shows a weak response to ambient levels of CH4 (e.g., range ≈1.8–2.7 ppm). Here we present an empirical function to correct the TGS 2600 signal for temperature and (absolute) humidity effects and address the long-term reliability of two identical sensors deployed from 2012 to 2018. We assess the performance of the sensors at 30-minute resolution and aggregated to weekly medians. Over the entire period the agreement between TGS-derived and reference CH4 concentrations measured by a high-precision Los Gatos Research instrument was R2 = 0.42, with better results during summer (R2 = 0.65 in summer 2012). Using absolute instead of relative humidity for the correction of the TGS 2600 sensor signals reduced the typical deviation from the reference to less than ±0.1 ppm over the full range of temperatures from −41 °C to 27 °C. At weekly resolution the two sensors showed a downward drift of signal voltages indicating that after 10–13 years a TGS 2600 may have reached its end of life. While the true trend in CH4 concentrations measured by the high-quality reference instrument was 10.1 ppb yr−1 (2012–2018), part of the downward trend in sensor signal (ca. 40–60 %) may be due to the increase in CH4 concentration, because the sensor voltage decreases with increasing CH4 concentration. Weekly median diel cycles tend to agree surprisingly well between the TGS 2600 and reference measurements during the snow-free season, but in winter the agreement is lower. We suggest developing separate functions for deducing CH4 concentrations from TGS 2600 measurements under cold and warm conditions. We conclude that the TGS 2600 sensor can provide data of research-grade quality if it is adequately calibrated and placed in a suitable environment where cross-sensitivities to gases other than CH4 is of no concern.

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ZIF-8 derived hollow carbon to trap polysulfides for high performance lithium-sulfur batteries.

Nanoscale ◽

10.1039/d1nr01674a ◽

2021 ◽

Author(s):

Md Masud Rana ◽

Yusuke Yamauchi ◽

Ian Gentle ◽

Md. Shahriar A. Hossain ◽

Mohammad Rejaul Kaiser ◽

...

Keyword(s):

Energy Density ◽

High Performance ◽

Low Cost ◽

Shuttle Effect ◽

Lithium Sulfur Batteries ◽

Solid Discharge ◽

Discharge Product ◽

Hollow Carbon ◽

Lithium Sulfur

Lithium-sulfur batteries (LSBs) have been considered very promising due to their high theoretical energy density and low cost. However, the undesirable shuttle effect with solid discharge product Li2S, greatly impedes...

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High-conductivity 1T-MoS2 catalysts anchored on a carbon fiber cloth for high-performance lithium–sulfur batteries

Materials Chemistry Frontiers ◽

10.1039/d1qm00674f ◽

2021 ◽

Author(s):

Dongli Chen ◽

Wenwei Zhan ◽

Xue Fu ◽

Ming Zhu ◽

Jinle Lan ◽

...

Keyword(s):

Carbon Fiber ◽

Reaction Kinetics ◽

High Performance ◽

Low Cost ◽

Shuttle Effect ◽

Carbon Fiber Cloth ◽

Lithium Sulfur Batteries ◽

High Theoretical Capacity ◽

Mos2 Catalysts ◽

Lithium Sulfur

Lithium–sulfur (Li–S) batteries with high theoretical capacity and low cost are challenged by the polysulfide shuttle effect and sluggish reaction kinetics.

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Suppressing Self-Discharge with Polymeric Sulfur in Li-S Batteries

Materials ◽

10.3390/ma12010064 ◽

2018 ◽

Vol 12 (1) ◽

pp. 64

Author(s):

Min Jiang ◽

Bingqing Gan ◽

Yongqi Deng ◽

Yin Xiong ◽

Ruixuan Tan

Keyword(s):

Storage Systems ◽

Low Cost ◽

X Ray Diffraction ◽

X Ray ◽

Shuttle Effect ◽

Discharge Rates ◽

High Theoretical Capacity ◽

Train Of Thought ◽

Sulfur Cathodes ◽

Lithium Sulfur

Lithium–sulfur (Li-S) batteries, due to their high theoretical capacity, intrinsic overcharge protection, and low cost, are considered as the most promising candidates for next-generation energy storage systems. To promote widespread use of Li-S batteries, various tactics have been reported to improve the columbic efficiency and to suppress the shuttle effect. Herein, we report a novel polymeric sulfur via heat radical polymerization, for the Li-S battery. The insolubles after CS2 washing, and the changes in XRD (X-ray diffraction) results imply the formation of polymeric sulfur. Owing to the absence of cyclic S8 molecular, the shuttle effect is depressed, and the polymeric sulfur cathodes exhibit lower self-discharge rates, higher sulfur utilization, better rates of performance, and enhanced cycling stabilities than the commercial sublimed sulfur. Thus, polymeric sulfur provides a new train of thought and tactics for restricting the formation of the dissolution of polysulfides, and self-discharge.

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Long-term reliability of the Figaro TGS 2600 solid-state methane sensor under low-Arctic conditions at Toolik Lake, Alaska

Atmospheric Measurement Techniques ◽

10.5194/amt-13-2681-2020 ◽

2020 ◽

Vol 13 (5) ◽

pp. 2681-2695 ◽

Cited By ~ 1

Author(s):

Werner Eugster ◽

James Laundre ◽

Jon Eugster ◽

George W. Kling

Keyword(s):

Solid State ◽

Mole Fraction ◽

Low Cost ◽

Full Range ◽

Absolute Humidity ◽

Diel Cycles ◽

Arctic Conditions ◽

Sensor Signals ◽

Reference Measurements

Abstract. The TGS 2600 was the first low-cost solid-state sensor that shows a response to ambient levels of CH4 (e.g., range ≈1.8–2.7 µmol mol−1). Here we present an empirical function to correct the TGS 2600 signal for temperature and (absolute) humidity effects and address the long-term reliability of two identical sensors deployed from 2012 to 2018. We assess the performance of the sensors at 30 min resolution and aggregated to weekly medians. Over the entire period the agreement between TGS-derived and reference CH4 mole fractions measured by a high-precision Los Gatos Research instrument was R2=0.42, with better results during summer (R2=0.65 in summer 2012). Using absolute instead of relative humidity for the correction of the TGS 2600 sensor signals reduced the typical deviation from the reference to less than ±0.1 µmol mol−1 over the full range of temperatures from −41 to 27 ∘C. At weekly resolution the two sensors showed a downward drift of signal voltages indicating that after 10–13 years a TGS 2600 may have reached its end of life. While the true trend in CH4 mole fractions measured by the high-quality reference instrument was 10.1 nmolmol-1yr-1 (2012–2018), part of the downward trend in sensor signal (ca. 40 %–60 %) may be due to the increase in CH4 mole fraction because the sensor voltage decreases with increasing CH4 mole fraction. Weekly median diel cycles tend to agree surprisingly well between the TGS 2600 and reference measurements during the snow-free season, but in winter the agreement is lower. We suggest developing separate functions for deducing CH4 mole fractions from TGS 2600 measurements under cold and warm conditions. We conclude that the TGS 2600 sensor can provide data of research-grade quality if it is adequately calibrated and placed in a suitable environment where cross-sensitivities to gases other than CH4 are of no concern.

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Nanoforest: Polyaniline Nanotubes Modified with Carbon Nano-Onions as a Nanocomposite Material for Easy-to-Miniaturize High-Performance Solid-State Supercapacitors

Polymers ◽

10.3390/polym10121408 ◽

2018 ◽

Vol 10 (12) ◽

pp. 1408 ◽

Cited By ~ 10

Author(s):

Piotr Olejnik ◽

Marianna Gniadek ◽

Luis Echegoyen ◽

Marta Plonska-Brzezinska

Keyword(s):

Solid State ◽

High Performance ◽

Low Cost ◽

Electron Microscopic ◽

Thin Gold Film ◽

Long Term Stability ◽

Developed Surface ◽

Scanning Electron Microscopic ◽

Sem Analyses

This article describes a facile low-cost synthesis of polyaniline nanotube (PANINT)–carbon nano-onion (CNO) composites for solid-state supercapacitors. Scanning electron microscopic (SEM) analyses indicate a uniform and ordered composition for the conducting polymer nanotubes immobilized on a thin gold film. The obtained nanocomposites exhibit a brush-like architecture with a specific capacitance of 946 F g−1 at a scan rate of 1 mV s−1. In addition, the nanocomposites offer high conductivity and a porous and well-developed surface area. The PANINT–CNO nanocomposites were tested as electrodes with high potential and long-term stability for use in easy-to-miniaturize high-performance supercapacitor devices.

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Tuning Na3Hf2Si2PO12 electrolyte surfaces by metal coating for high-rate and long cycle life all-solid sodium-ion batteries

Journal of Materials Chemistry A ◽

10.1039/d1ta09693a ◽

2022 ◽

Author(s):

Shen Cai ◽

Haoqing Tian ◽

Jiahui Liu ◽

Shan Liu ◽

Lei Dai ◽

...

Keyword(s):

Solid State ◽

Low Cost ◽

High Energy ◽

Sodium Ion ◽

High Rate ◽

High Energy Density ◽

Sodium Ion Batteries ◽

Interfacial Resistance ◽

Long Cycle Life ◽

The Poor

Solid-state sodium ion batteries have attracted widely attentions due to its high energy density, low cost and high security. However, the poor contact and high interfacial resistance between sodium and...

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Fine Particle Mass Monitoring with Low-Cost Sensors: Corrections and Long-Term Performance Evaluation

10.1002/essoar.10500022.5 ◽

2019 ◽

Cited By ~ 1

Author(s):

Carl Malings ◽

Rebecca Tanzer ◽

Aliaksei Hauryliuk ◽

Provat K. Saha ◽

Allen L. Robinson ◽

...

Keyword(s):

Performance Evaluation ◽

Fine Particle ◽

Low Cost ◽

Particle Mass ◽

Long Term Performance ◽

Term Performance

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Wittichenite semiconductor of Cu3BiS3 films for efficient hydrogen evolution from solar driven photoelectrochemical water splitting

Nature Communications ◽

10.1038/s41467-021-24060-5 ◽

2021 ◽

Vol 12 (1) ◽

Author(s):

Dingwang Huang ◽

Lintao Li ◽

Kang Wang ◽

Yan Li ◽

Kuang Feng ◽

...

Keyword(s):

Hydrogen Evolution ◽

Water Splitting ◽

Low Cost ◽

Solar Hydrogen ◽

Onset Potential ◽

Term Stability ◽

Long Term Stability ◽

Solar Water Splitting ◽

Current Densities

AbstractA highly efficient, low-cost and environmentally friendly photocathode with long-term stability is the goal of practical solar hydrogen evolution applications. Here, we found that the Cu3BiS3 film-based photocathode meets the abovementioned requirements. The Cu3BiS3-based photocathode presents a remarkable onset potential over 0.9 VRHE with excellent photoelectrochemical current densities (~7 mA/cm2 under 0 VRHE) and appreciable 10-hour long-term stability in neutral water solutions. This high onset potential of the Cu3BiS3-based photocathode directly results in a good unbiased operating photocurrent of ~1.6 mA/cm2 assisted by the BiVO4 photoanode. A tandem device of Cu3BiS3-BiVO4 with an unbiased solar-to-hydrogen conversion efficiency of 2.04% is presented. This tandem device also presents high stability over 20 hours. Ultimately, a 5 × 5 cm2 large Cu3BiS3-BiVO4 tandem device module is fabricated for standalone overall solar water splitting with a long-term stability of 60 hours.

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