Recent advances, challenges, and prospects of piezoelectric materials for self-charging supercapacitor

Enhanced energy harvester performance by a tension annealed carbon nanotube yarn at extreme temperatures

“…1,2 Traditional electromagnetic devices provide most of the electrical energies in the modern society but they suffer from their bulky size, heavy weight, and low power density when used for microscale devices. Recently, various types of mechanical energy harvesters have been developed, such as triboelectric nanogenerators (TENGs) [3][4][5] and piezoelectrics, [6][7][8][9] they are efficient at high frequencies (∼20-100 Hz) but suffer from their low output electrical power. Twisted and coiled carbon nanotube (CNT) yarns have been demonstrated for diverse applications such as artificial muscles, [10][11][12][13] supercapacitors, 14,15 batteries, 16,17 and intelligent textiles 18 due to their excellent mechanical and electrical properties.…”

A hollow urchin-like metal–organic framework with Ni–O-cluster SBUs as a promising electrode for an alkaline battery–supercapacitor device

“…3 As a class of energy-storage systems, supercapacitors (SCs) with various branches, such as alkaline-ion capacitors, alkaline batterysupercapacitor hybrid devices, micro-supercapacitors and so forth, have been extensively documented. [4][5][6][7][8] Even though great progress in enhancing energy densities has been witnessed in these devices, with current commercially available SCs it remains difficult to meet the energy-consumption requirements of human society. Therefore, developing new strategies to design/prepare novel electrode materials and to fabricate electrodes become crucial for the practical applications of SCs.…”

Synthesis of novel 1–dimensional structure from Mo6S8 Chevrel phase of electrode for Mg batteries

“…The synthesis of Mo 6 S 3 I 6 NWs was optimized at 1100 °C for 48 h. The nanowire was used as an active material and the electrochemical test showed a specific capacity of 219.4 mAh•g -1 at 0.07 V. We showed that Mo 6 S 3 I 6 NWs are suitable as MIB anodes and can be used with highvoltage cathode materials (MoS 2 [33], WSe 2 [34], and Ti 3 C 2 T x [35][36][37][38]) in APC electrolytes. Mo 6 S 3 I 6 are expected to be utilized in various applications [39][40][41][42][43][44].…”