Environmentally-friendly aqueous Li (or Na)-ion battery with super-long life is built for large-scale energy storage.

This paper illustrates a simpler method for the preparation of gel polymer electrolytes.

Here we demonstrate pronounced suppression of self-discharge using an ionic liquid <italic>N</italic>-methyl-<italic>N</italic>-propylpiperidinium bis(trifluoromethanesulfonyl)imide-based electrolytes for Li–S batteries.

Abstract Lithium–air batteries when operated in ambient air generally exhibit poor reversibility and cyclability, because of the Li passivation 2 O /LiOH/Li CO 3 accumulation electrode. Herein, we present a Li–air battery supported by polymer electrolyte containing 0.05 m LiI, which efficiently alleviates induced attacking air. Furthermore, it is demonstrated that I − /I conversion acts as redox mediator facilitates electrochemical decomposition discharge products during recharge process. As...

Li₂TiSiO₄with a 0.28 V operational potential may fill the gap between present 0.1 carbonaceous and 1.5 Li₄Ti₅O₁₂electrodes.

An advantageous solid electrolyte/liquid electrolyte interface is crucial for the implementation of a protected lithium anode in liquid cells. Li6.5La3Zr1.5Ta0.5O12 (LLZTO) garnet electrolytes are among few that stable contact with metal. We show LLZTO unstable organic carbonate-based Li+ used conventional Li-ion The interfacial resistance between and LiPF6 (CH2O)2CO: OC(OCH3)2 (1:1 v/v) increases time due to growth lithium-ion-conducting interphase (SEI) at surface ceramic electrolyte....

Abstract The application of Li anodes is hindered by dendrite growth and side reactions between electrolyte, despite its high capacity low potential. A simple approach for this challenge now demonstrated. In our strategy, the garnet‐type 6.4 La 3 Zr 1.4 Ta 0.6 O 12 (LLZTO)‐based artificial solid–electrolyte interphase (SEI) anchored on Cu foam sintering coated with LLZTO particles. heat treatment leads to interdiffusion 2 5 at Cu/LLZTO interface, through which layer fixed foam. 3D structure...

Because of the low cost and abundant nature sodium element, sodium-ion batteries (SIBs) are attracting extensive attention, a variety SIB cathode materials have been discovered. However, lack high-performance anode is major challenge SIBs. Herein, we synthesized ultrasmall TiO2-nanoparticle-coated reduced graphene oxide (TiO2@RGO) composites by using one-pot hydrolysis method, which then investigated as for The morphology TiO2@RGO has characterized transmission electron microscopy,...

A hybrid separator composed of a glassy fiber paper and microporous membrane is effectively integrated into Li–S battery.

Abstract Lithium–air batteries when operated in ambient air generally exhibit poor reversibility and cyclability, because of the Li passivation 2 O /LiOH/Li CO 3 accumulation electrode. Herein, we present a Li–air battery supported by polymer electrolyte containing 0.05 m LiI, which efficiently alleviates induced attacking air. Furthermore, it is demonstrated that I − /I conversion acts as redox mediator facilitates electrochemical decomposition discharge products during recharge process. As...

Carbon-coated LiTi2(PO4)3 and NaTi2(PO4)3 were prepared using the sol-gel method, followed by solid-state reaction thermal decomposition vapor deposition process. The electrochemical profile of both compounds examined in three different aqueous electrolytes, including 1 M Li2SO4, Na2SO4 Li2SO4/Na2SO4 mixed solutions (1:1 volume ratio). Both Li Na ions can successfully inserted into these NASCION materials, two materials deliver a similar higher discharge potential Li2SO4 solution (−0.76 V...

We designed a core−shell-structured TiO₂(B) nanofiber@porous RuO₂composite as carbon-free cathode for Li–O₂batteries.

Abstract Olivine‐structured LiMnPO 4 (LMP) is an efficient Li + host owing to its high theoretical energy density and thermal stability. However, poor ionic electronic conductivity severely hinder practical application. Herein, one‐dimensional (1D) LMP@C nanofibers with in situ created 3D mesoporous architecture are reported the charge‐storage behavior addressed. Ultrafine LMP nanoparticles homogeneously confined interconnected exposed intersections, facilitating electronic/ionic...

Abstract A natisite structured material, Na 2 TiSiO 5 , has been investigated as anode for lithium‐ and sodium‐ion batteries. The results show that can deliver a capacity of 260 mAh g −1 with good reversibility when used in Li‐ion In contrast to the conversion reaction mechanism observed its analogue Li solid‐solution type intercalation is found lithiation/delithiation process . Lithium occurs through three‐dimensional diffusion path after crossing an energy barrier around 1.0 eV....

Abstract The application of Li anodes is hindered by dendrite growth and side reactions between electrolyte, despite its high capacity low potential. A simple approach for this challenge now demonstrated. In our strategy, the garnet‐type 6.4 La 3 Zr 1.4 Ta 0.6 O 12 (LLZTO)‐based artificial solid–electrolyte interphase (SEI) anchored on Cu foam sintering coated with LLZTO particles. heat treatment leads to interdiffusion 2 5 at Cu/LLZTO interface, through which layer fixed foam. 3D structure...

LiMn₂O₄ nanorods and carbon-coated Li₄Ti₅O₁₂ nanowires were used to build a full cell that exhibits supercapacitor-like power performance, long life high energy density.

We report an original metal-free full-liquid battery depending on the reversible conversion chemistry between sulfur species and flexible redox-active couples with highly positive potential, for example, Br₃⁻/Br⁻.

Sodium-ion batteries (SIBs) have been considered as a promising candidate for large-scale energy storage applications, because of the low cost sodium element and broad choice cathode materials which do not contain expensive raw materials. However, lack anode still hinders development SIBs technology. Herein, we first time report new one-dimensional tunnel-structure material, Na1.68H0.32Ti2O3SiO4·1.76H2O, SIBs. This material can deliver reversible capacity 110 mAh g–1 at current density 20 mA...

Titanosilicate sitinakite compound with an ideal formula of Na1.68H0.32Ti2O3SiO4·1.76H2O (NTSO) has been employed as a low intercalation potential anode for rechargable sodium ion batteries (SIBs), which exhibit potential, cost, and environmental friendliness. However, the NTSO suffers from shortcomings such electronic conductivity, restricts its electrochemical performances. In this work, cation Nb-doped compounds have synthesized investigated systematically. The powder X-ray diffraction...

Controlling false discovery rate (FDR) is crucial for variable selection, multiple testing, among other signal detection problems. In literature, there certainly no shortage of FDR control strategies when selecting individual features, but the relevant works structural change detection, such as profile analysis piecewise constant coefficients and integration with data sources, are limited. this paper, we propose a generalized knockoff procedure (GKnockoff) under problem settings. We prove...