Three-dimensional nitrogen-doped graphene hydrogel-based flexible all-solid-state supercapacitors
Source abstract
Abstract
In this paper, a three-dimensional nitrogen-doped graphene nano-gel electrolyte (3DNG-PDMA nano-gel) for the preparation of high-performance all-solid-state supercapacitors was studied. Our research shows that the gel electrolyte has a stable three-dimensional network structure and good ionic conductivity (0.0625 S cm−1), and the all-solid-state supercapacitors (SCs) prepared by this gel electrolyte present good electrochemical performance. The specific capacitance of supercapacitor is 187.5 F g−1 under the current density of 1 A g−1. Even at the high power density of 5 kW kg−1, the energy density of supercapacitor can still reach 38 Wh kg−1. After 2500 cycles, the specific capacitance remains 84.1% of the initial value, indicating that the material has good cycle stability. Besides, the gel has high mechanical flexibility, the strain reaches 2409.4% under the stress of 1805.48 kPa, and it has excellent swelling performance with the swelling rate of 706% in 5 h.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Supercapacitor Materials and Fabrication · Advanced battery technologies research · Advanced Sensor and Energy Harvesting Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (37)
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