The new-generation flexible Zn-ion capacitors (ZICs) require multifunctionality and environmental adaptability for practical applications. This essentially means that hydrogel electrolytes are expected to possess superior mechanical properties, temperature resistance, tunable interface properties resist flexibility loss performance degradation over a wide operating temperatures range. Herein, multifunctional polyzwitterionic electrolyte (PAM/LA/PSBMA) with temperatures, excellent tensile...

We have developed a supercapacitor electrode composed of CuS microspheres with polypyrrole (PPy) uniformly inserted into the sheet-like subunit structure and coated onto surface to enhance pseudocapacitive performance. Novel sphere-like particles intertwined are fabricated by solvothermal approach without any surfactant or template. A CuS@PPy composite is prepared in situ oxidation polymerization pyrrole presence suspension. The (CuS content 16.7 wt%) exhibits high specific capacitance 427 F...

Integrated configuration can greatly improve the stability of an energy-storage device in a large or repeated mechanical deformation process, but there is little attention paid to develop this conceptual device. Here, we successfully design two embedded polypyrrole (PPy) layers as electrodes and boron cross-linked PVA(poly(vinyl alcohol))/KCl hydrogel film electrolyte construct integrated electrode–electrolyte–electrode flexible supercapacitor (so-called all-in-one supercapacitor). The...

Hydrogels are considered to be one of the most promising flexible sensing materials for a variety practical applications. However, hydrogels usually freeze at temperatures below freezing and lose their inherent properties. Thus, it is highly desirable prepare that can simultaneously have excellent mechanical properties antifreezing low temperatures. Herein, facile photoinitiated polymerization strategy employed introduce zwitterionic proline (ZP) into poly(2-hydroxyethyl acrylate) (PHEA)...

Zn ion capacitors (ZICs) composed of a carbon-based cathode and anode are one the most promising energy storage devices due to their inherent safety high-power output. However, poor cycling stability originating from dendrites' formation low density limited by insufficient activated carbon properties remain major challenges for development high-performance ZICs. Hence, we constructed facile effective strategy alleviate "edge effects" suppress dendrites growing ZnO nanowire arrays on foil...

Sb6O13/reduced graphene oxide (Sb6O13/rGO) nanocomposite was synthesized by the solvothermal method using Sb2O3 and as raw material. On basis of physical electrochemical characterizations, Sb6O13 nanocrystals 10-20 nm size were uniformly anchored on rGO sheets, displayed a large reversible specific capacity 1271 mA h g-1 an excellent cyclability 1090 after 140 cycles at 100 when proposed potential anode material for lithium ion batteries, emphasizing advantages anchoring sheets maximum...

Nickel molybdate (NiMoO4) is a typical pseudocapacitance material with high specific capacity. However, its inherent shortcomings of poor electrical conductivity and unstable structure caused by hindered migration electrons local aggregation charges/ions seriously affect energy-storage performance. Herein, using NiMoO4 nanorods as the nucleation matrix, hydrothermal approach was used to fabricate NiMoO4/NiCo-layered double hydroxide (LDH) nanocomposites. The NiCo-LDH nanosheets uniformly...

Aqueous Zn–MnO2 batteries have received much attention due to their low cost, safety, reliability, and large storage capacity. However, the sluggish ion/electron transport kinetics of bulk MnO2 inevitably decreases rate capability cycle stability batteries. Herein, hierarchical nanosheet arrays self-anchored grown in polyaniline-derived carbon nanotubes (PCNT@MnO2, denoted as PCMO) with enhanced are prepared by employing PCNT both a substrate sacrificial reductant. The hollow conductive...

Ionogels are increasingly used in flexible strain sensors, but it is still challenging to incorporate multifunctional properties such as flexibility, self-healing, adhesion, temperature resistance, and electrical conductivity. Herein, a facile rapid one-step photoinitiated polymerization strategy employed prepare ionogels by filling hydrophobic conductive ionic liquid into flexible, fluoropolymer matrix. Thanks the presence of abundant noncovalent interactions (hydrogen-bonding ion-dipole...

Flexible zinc–air batteries (ZABs) have attracted attention because of their intrinsic flexibility, high energy density, and excellent safety performance. However, the hydrogel electrolyte in ZABs usually suffers from shortcomings such as unsatisfactory tensile properties, low ionic conductivity, poor water retention. Herein, a supramolecular-polymer dual-network (G-PBA/PAAm SPDH) with stretchability (>1000%) is prepared by combining covalent self-assembled guanosine–phenylboronic acid...

Design and manufacture of cathode materials, with suitable pore structure high electrical conductivity to matching zinc anode, solving the problem dissolution structural degradation materials for ion batteries (ZIBs), is great significance development ZIBs. Herein, Vanadium Nitride (VN) uniformly decorated N‐doped micro/mesoporous carbon nanofibers (VN/N‐MCNF) appropriate porous reactive sites Zn2+ prepared by using V‐MOF, as important precursor via electrostatic spinning pyrolysis...

1T-MoS2 is considered an attractive energy storage material due to its large layer spacing and excellent electrical conductivity. Unfortunately, difficult synthesize directly the substability, which limits development application. Electron-filling engineering of Mo 4d orbitals core idea induce efficient conversion 2H 1T phase. Based on this theory, a homogeneous CuS@MoS2 heterogeneous nanosheet successfully constructed based electron-rich CuS as electron donor. Both density functional theory...