High‐Performance, Mechanically and Thermally Compliant Silica‐Based Solid Polymer Electrolyte for Triboelectric Nanogenerators Application

Abstract

Triboelectric nanogenerators (TENGs) are attractive research since their discovery, and various strategies are developed in order to improve their output performance. Recently, the ionic gel has been attracted to the TENGs field, but it typically has limited power output and durability. Here, a strategy of adding silica‐supported ionic liquid to the polymer (solid polymer electrolyte) as a triboelectric material is reported. This method of tribo‐material is created using a straightforward sol–gel process, resulting in a versatile, stable, durable, and high power output performance. When coupled with spin‐coated polydimethylsiloxane as negative material provides an output voltage of 248 V, a current density of 61.5 mA m−2 and power density of 5.2 W m−2 which is sufficient to light up 160 white light‐emitting diodes. Comparatively, pristine poly(vinyl alcohol) (PVA) film merely harvests 125 V, 26.5 mA m−2, and power of ≈2.48 W m−2. The high output is attributed to the silica precursor in the membrane, which makes more –OH groups of PVA to form long chains network with other oxygen of alkoxy groups through hydrogen bonding and also the presence of nitrogen groups of imidazolium. This work thus expands the enhancement of the positive material utilized for triboelectric nanogenerators with high possibility.

Artificial Neuron Devices

“…After the materials are separated, two electrodes are placed on the backside of each material’s surface, and the resulting electrostatic induction generates charges. This creates a potential difference, which causes electrons to flow through the external circuit until equilibrium is achieved and the two materials are completely separated . According to their mode of operation, the TENG can be classified into four distinct modes: the vertical contact-separation mode, the lateral sliding mode, the single-electrode mode, and the freestanding mode.…”

Recent Progress in Flexible Pressure Sensors Based Electronic Skin

“…Therefore, a potential difference is generated, causing the electron to transfer through the external circuit until an equilibrium state is reached when the two materials are entirely separated. [ 114 ] TENG has four different working modes: the vertical contact‐separation (CS) mode, the lateral sliding mode, the single‐electrode (SE) mode, and the freestanding mode.…”

High‐Performance Biomechanical Energy Harvester Enabled by Switching Interfacial Adhesion via Hydrogen Bonding and Phase Separation

“…To understand the properties of TP-TENG in multifarious aspects, a comparison of V oc , current density per frequency, power density per frequency, matching impedance, and flexibility with previously reported devices based on PVA composites/blends is shown in Figure 4g and a more detailed summary can be found in Table S2 (Supporting Information). [53][54][55][56][57][58][59][60][61][62] TP-TENG shows the highest peak current density per frequency of 109 mA m -2 Hz -1 , power density per frequency of 20.5 W m -2 Hz -1 at the lowest matching impedance of 1 MΩ, and flexibility. Moreover, the average power density of TP-TENG can reach 19.4 mW m -2 Hz -1 at 1 MΩ optimal load resistance (Figure S20, Supporting Information).…”