Such superior energy storage performance and steady electrochemical behaviors under high strain (150% maximum) have almost never been reported before.
Three dimensional carbon materials with hirerarchically porous structure could exhibit superior energy storage performance than two dimensional stacked carbon nanosheet materials.
Sandwich-structured polymer nanocomposites that provide a pathway to overcome the paradox between permittivity and breakdown strength ever existing in dielectric materials are receiving increasing attentions for their superior energy storage performance.
The superior storage energy performance of NiHCF/PDDA/rGO hybrids, such as high specific capacitance, good rate capacity and long cycling stability, positions them as a promising candidate for supercapacitor materials.
When used as electrodes for electrochemical capacitor, the composite electrode exhibits superior energy storage performances with high specific capacitance of 1221 F g−1 at 1 A g−1, outstanding cycle stability (81% capacitance retention after 3000 cycles) and excellent flexibility.
The nonaqueous lithium-oxygen (Li-O2) battery is promising as a superior energy storage medium, whose practical applications are limited by the catalytic performance of cathode catalysts.
Fibre reinforced plastic (FRP) composite materials can provide superior specific energy absorption performance over conventional metallic structures if crush stability can be maintained during the impact event.
It also demonstrates superior device performance with energy density, 64.2 Wh kg−1 (much higher than that of symmetric cell) with high power density, 8.3 kW Kg−1 due to optimized mass ratio of the electrodes.
The PEG/GO/GNP composite PCM with only 2 wt% GO and 4 wt% GNP hybrid fillers exhibited superior comprehensive performance: thermal energy storage density as high as 98.2% of pure PEG, shape stabilization effect, high thermal conductivity of 1.72 W/mK (more than 490% increase over pure PEG), high electrical conductivity of 2.5 S/m and excellent thermal reliability after thermal cycling.
The fabricated flexible thin-film lithium-ion battery (5.5 × 5.5 cm2, 325 μm thick) shows superior electrochemical performance, including an energy density of 292.3 Wh L−1 based on electrode size (4.0 × 4.0 cm2), an initial discharge capacity of 2.5 mAh cm−2 per electrode area, and capacity retention ratio of over 68% at the 50th cycle.
