An Ultra‐Low Self‐Discharge Aqueous|Organic Membraneless Battery with Minimized Br2 Cross‐Over (Adv. Sci. 7/2024)
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DOI: 10.1002/advs.202470044
Abstract: Membraneless Batteries In article number 2307780, Xiang Liu, Yi Zhang, Yutong Wu, and co‐workers design an ultra low self‐discharge aqueous|organic membraneless battery. By locking the polybromide species in the organic phase, Br2 diffusion induced self‐discharge… read more here.
Keywords: battery; self discharge; ultra low; membraneless ... See more keywords
Phosphorene as Cathode Material for High‐Voltage, Anti‐Self‐Discharge Zinc Ion Hybrid Capacitors
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DOI: 10.1002/aenm.202001024
Abstract: Output voltage and self‐discharge rate are two important performance indices for supercapacitors, which have long been overlooked, though these play a very significant role in their practical application. Here, a zinc anode is used to… read more here.
Keywords: self discharge; voltage; zinc; anti self ... See more keywords
Porous Lithiophilic Li–Si Alloy‐Type Interfacial Framework via Self‐Discharge Mechanism for Stable Lithium Metal Anode with Superior Rate
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DOI: 10.1002/aenm.202101544
Abstract: Lithium is regarded as an ideal anode for next‐generation Li metal batteries (LMB) as it exhibits extraordinarily high theoretical capacity and the lowest electrochemical potential among all anode candidates. However, safety concerns and poor cycling… read more here.
Keywords: rate; alloy type; interfacial framework; type interfacial ... See more keywords
Programmable Solid Electrolyte Interphase Enables Simultaneous Optimization of Electrochemical Performance and Self‐Discharge of Lithium Sulfur Batteries under Practical Conditions
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DOI: 10.1002/aenm.202500355
Abstract: The development of lithium–sulfur batteries is impeded by their suboptimal electrochemical performance and significant self‐discharge under practical conditions, especially at high sulfur‐to‐host ratios and low electrolyte‐to‐sulfur ratios. Under these conditions, improving electrochemical performance necessitates accelerating… read more here.
Keywords: self discharge; sulfur; practical conditions; performance ... See more keywords
Suppressing Self-Discharge and Shuttle Effect of Lithium-Sulfur Batteries with V2 O5 -Decorated Carbon Nanofiber Interlayer.
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DOI: 10.1002/smll.201602539
Abstract: V2 O5 decorated carbon nanofibers (CNFs) are prepared and used as a multifunctional interlayer for a lithium-sulfur (Li-S) battery. V2 O5 anchored on CNFs can not only suppress the shuttle effect of polysulfide by the… read more here.
Keywords: shuttle effect; lithium sulfur; interlayer; self discharge ... See more keywords
Faradaic and Non-Faradaic Self-Discharge Mechanisms in Carbon-Based Electrochemical Capacitors.
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DOI: 10.1002/smll.202311957
Abstract: Electrochemical capacitors (ECs) play a crucial role in electrical energy storage, offering great potential for efficient energy storage and power management. However, they face challenges such as moderate energy densities and rapid self-discharge. Addressing self-discharge… read more here.
Keywords: electrochemical capacitors; discharge processes; faradaic non; self discharge ... See more keywords
The Effects of Self-Discharge on the Performance of Asymmetric/Hybrid Electrochemical Capacitors with Redox-Active Electrolytes: Insights from Modeling and Simulation
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DOI: 10.1007/s11664-017-5796-y
Abstract: Self-discharge effects on the performance of an asymmetric electrochemical capacitors (ECs) was studied by incorporating a combination of different applicable self-discharge mechanisms into the capacitors mass transfer and charge conservation equations during charging and discharging.… read more here.
Keywords: performance asymmetric; self; electrochemical capacitors; self discharge ... See more keywords
Towards High-Energy and Anti-Self-Discharge Zn-Ion Hybrid Supercapacitors with New Understanding of the Electrochemistry
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DOI: 10.1007/s40820-021-00625-3
Abstract: A surface engineering strategy was proposed to design hierarchically porous structure on fibrous carbon cathodes with O/N heteroatom functional groups. High-energy and anti-self-discharge Zn-ion hybrid supercapacitors (ZHSs) were realized. ZHS electrochemistry was investigated and new… read more here.
Keywords: electrochemistry; energy anti; energy; high energy ... See more keywords
Self-discharge in Li-ion aqueous batteries: A case study on LiMn2O4
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DOI: 10.1016/j.electacta.2021.137847
Abstract: Abstract Aqueous rechargeable lithium-ion batteries have attracted great attention as an alternative to traditional battery technologies, being able to overcome the issues caused by flammable and expensive organic electrolytes. In particular, LiMn2O4 has reached very fast… read more here.
Keywords: organic electrolytes; self discharge; aqueous batteries; discharge process ... See more keywords
Time-varying model of self-discharge in a double layer supercapacitor with blocking layer
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DOI: 10.1016/j.est.2021.102730
Abstract: Abstract One of the main shortcomings of the supercapacitors is related to self-discharge phenomenon at open circuit conditions due to the existence of an internal leakage current. Using two thin insulating blocking layers on the… read more here.
Keywords: self discharge; model; layer; time varying ... See more keywords
Mitigating self-discharge of activated carbon-based supercapacitors with hybrid liquid crystal as an electrolyte additive
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DOI: 10.1016/j.est.2021.102830
Abstract: Abstract The application of supercapacitors has been restricted partially due to the high self-discharge rate and large leakage current. In this paper, a nematic hybrid liquid crystal, E7, is adopted as an additive to the… read more here.
Keywords: self discharge; activated carbon; liquid crystal; carbon based ... See more keywords